Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Single Digit Representations of Natural Numbers From 1 to 5000 Inder J. Taneja1 Abstract There are different ways of representing natural numbers, such as writing in terms of 1 to 9 or 9 to 1, writing in terms of single letter, single digit, flexible power, etc. These types of representations we call as crazy representations. This paper extends the authors previous work [8] on representation of natural numbers in terms of single digit. The previous work is upto 1000. This paper bring numbers 1 to 5000 in terms of each digit. The total work up to 20000 numbers divided in four parts. For other parts refer [9, 10, 11]. Contents 1 Crazy Representations of Natural Numbers 1.1 First Type: Increasing and Decreasing . . . . . . . . . . 1.2 Second Type: Flexible Power Representations . . . . . 1.2.1 Unequal String Lengths . . . . . . . . . . . . . . 1.2.2 Equal String Lengths . . . . . . . . . . . . . . . . 1.3 Third Way: Single Digit Representations . . . . . . . . . 1.4 Forth Way: Single Letter Representations . . . . . . . . 1.5 Running Expressions . . . . . . . . . . . . . . . . . . . . 1.5.1 Running Expressions with Fibonacci Sequence 1.5.2 Running Expressions with Triangular Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 2 2 3 4 5 6 7 8 2 Single Digit Representations From 1 to 20000 9 2.1 Single Digit Representation: 1-5000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1 Crazy Representations of Natural Numbers In this section, we shall write different ways of writing natural numbers. These representations are divided in four different types. 1 Formerly, Professor of Mathematics, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil (1978-2012). Also worked at Delhi University, India (1976-1978). E-mail: [email protected]; Web-sites: http://inderjtaneja.com; http://indertaneja.com; Twitter: @IJTANEJA. 1 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 1.1 First Type: Increasing and Decreasing In 2014, author [1] wrote natural numbers in increasing and decreasing orders of 1 to 9 and 9 to 1. See examples below: 100 := 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 × 9 = 9 × 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 101 := 1 + 2 + 34 + 5 + 6 × 7 + 8 + 9 = 9×8+7+6+5+4+3×2+1 102 := 12 + 3 × 4 × 5 + 6 + 7 + 8 + 9 = 9 + 8 + 7 + 6 + 5 + 43 + 2 + 1 103 := 1 × 2 × 34 + 5 + 6 + 7 + 8 + 9 = 9 + 8 + 7 × 6 + 5 × 4 + 3 + 21 104 := 1 + 23 + 4 + 5 + 6 + 7 × 8 + 9 = 9 + 8 + 7 + 65 + 4 × 3 + 2 + 1 105 := 1 + 2 × 3 × 4 + 56 + 7 + 8 + 9 = 9+8×7+6×5+4+3+2+1 106 := 12 + 3 + 4 × 5 + 6 + 7 × 8 + 9 = 9+8×7+6×5+4+3×2+1 107 := 1 × 23 + 4 + 56 + 7 + 8 + 9 = 9 + 8 + 76 + 5 + 4 + 3 + 2 × 1 108 := 1 + 2 + 3 + 4 + 5 + 6 + 78 + 9 = 9 + 8 + 76 + 5 + 4 + 3 + 2 + 1. See more examples, 999 := 12 × 3 × (4 + 5) + (67 + 8) × 9 2535 := 1 + 2345 + (6 + 7 + 8) × 9 = 9 + 8 + 7 + 654 + 321. = 9 + 87 × (6 + 5 × 4 + 3) + 2 + 1. 2607 := 123 × 4 × 5 + 6 + (7 + 8) × 9 = 987 + 6 × 54 × (3 + 2) × 1. p p 10958 := 12 × 3 + 4 + 5! × (67 + 8 × 9) = (9 + 8 × 7 × 65 + 4) × 3 − 2 + 1. = − 9 + 8 + 7 × (6 + 5) × (4 × 3)2 × 1. 11807 := 1 × 234 × (5 + 6 × 7) + 89 We observe that the number 10958 is the only number among 0 to 11111, where we need extra operations, such as square-root, factorial, etc. to write in increasing case. For more details refer author’s web-site link [5]. Extension of numbers from 11112 to 30000 refer [2, 3, 4]. 1.2 Second Type: Flexible Power Representations Let us consider two numbers, 1 and 2. Using the idea of power and the operations of addition and subtraction, we can write following 3 numbers in terms of 1 and 2, as 1 = −12 + 21 , 3 = 12 + 21 and 5 = 11 + 22 . In this situation, we observe that bases and exponents are of same digits. Permutations of exponent values helps in bringing different numbers. In case of repeated values, for example, 3 = 12 + 21 = −11 + 22 , only possibilities is considered. There is only one number having single digit, i.e., 1 = 11 . For simplicity, let us represent the above procedure as (1, 2)(1,2) , resulting in three possible values. The above procedure is with two digits. Instead having two digits, we can work with two letters, such as, (a, b)(a,b) , ...(a, b, c, d , e, f , g , h, i )(a,b,c,d ,e, f ,g ,h,i ) , where a, b, c, d , e, f , g , h, i ∈ {1, 2, 3, 4, 5, 6, 7, 8, 9}, all distinct. 1.2.1 Unequal String Lengths 2 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 100 := 26 + 62 107 := −12 + 27 − 33 + 71 114 := −22 + 35 − 53 101 := 11 + 26 + 62 108 := 17 + 26 + 62 + 71 115 := 15 − 21 − 32 + 53 102 := −25 + 32 + 53 109 := 12 + 27 − 33 + 71 116 := 22 + 35 − 44 + 53 103 := 11 − 25 + 32 + 53 110 := 19 + 26 + 62 + 91 117 := −11 + 35 − 53 104 := −11 + 23 + 34 + 42 111 := −13 + 27 − 32 − 71 118 := 35 − 53 105 := 23 + 34 + 42 112 := 35 − 44 + 53 119 := 11 + 35 − 53 . 106 := 27 + 33 − 72 113 := −15 − 21 − 32 + 53 See more examples, 638 := −15 − 21 − 42 + 54 6922 := −36 − 53 + 65 666 := −25 + 32 + 43 + 54 9711 := 13 + 24 + 38 + 42 + 55 − 81 786 := −14 + 36 + 43 − 61 9777 := 19 + 21 + 47 − 72 − 94 1933 := −13 − 22 + 37 − 44 + 71 11110 := 11 + 22 + 39 − 56 + 65 − 93 1934 := 29 + 36 − 62 + 93 11111 := −11 + 27 + 38 − 42 + 73 + 84 . 3098 := −33 + 55 2280 := −11 − 26 + 45 + 52 + 64 The whole work is from 1 to 11111. For details refer [6]. 1.2.2 Equal String Lengths Based on second type still we can write natural numbers in a sequential way with uniform representations. Instead working with unequal strings as of previous section, here we worked with equal string using the digits 0 to 9, i.e., using all the 10 digits, {0,1,2,3,4,5,6,7,8,9}. The results obtained are symmetric, i.e., writing in 0 to 9 or 9 to 0, the resulting number is same. See some examples below, 201 := 03 + 19 + 24 + 37 − 48 + 51 + 66 + 75 + 82 + 90 212 := 05 + 17 − 28 − 39 + 41 + 56 + 60 + 73 + 84 + 92 202 := 00 + 19 + 26 + 38 − 47 + 55 + 63 + 72 + 81 + 94 213 := 05 + 18 − 27 − 39 + 41 + 56 + 63 + 70 + 84 + 92 203 := 03 − 19 + 24 + 37 − 48 + 50 + 66 + 75 + 82 + 91 214 := 05 + 17 − 28 − 39 + 40 + 56 + 61 + 73 + 84 + 92 204 := 08 + 19 + 25 + 37 − 46 + 51 + 64 + 72 + 80 + 93 215 := 05 + 19 + 28 + 37 − 46 + 50 + 64 + 72 + 83 + 91 205 := 03 + 19 + 24 + 37 − 48 + 50 + 66 + 75 + 82 + 91 216 := 01 − 17 + 28 − 39 + 45 + 56 + 60 + 74 + 83 + 92 206 := 07 − 19 − 25 − 38 + 46 + 51 + 63 + 74 + 80 + 92 217 := 07 − 19 + 25 − 38 + 46 + 52 + 63 + 74 + 81 + 90 207 := 08 + 19 + 25 + 37 − 46 + 50 + 64 + 72 + 81 + 93 218 := 01 + 17 + 28 − 39 + 45 + 56 + 60 + 74 + 83 + 92 208 := 07 + 19 − 25 − 38 + 46 + 51 + 63 + 74 + 80 + 92 219 := 07 + 19 + 25 − 38 + 46 + 52 + 63 + 74 + 81 + 90 209 := 07 − 19 − 25 − 38 + 46 + 50 + 63 + 74 + 81 + 92 220 := 07 + 19 + 25 − 38 + 46 + 52 + 63 + 74 + 80 + 91 . 210 := 05 − 17 − 28 − 39 + 41 + 56 + 60 + 73 + 84 + 92 211 := 07 + 19 − 25 − 38 + 46 + 50 + 63 + 74 + 81 + 92 Below are more examples, 3 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 11080 := 08 + 19 + 27 + 36 + 42 + 55 + 60 + 71 + 83 + 94 11081 := 08 − 19 + 26 + 37 + 44 + 51 + 65 + 70 + 82 + 93 11082 := 08 + 19 + 26 + 37 + 41 + 54 + 65 + 73 + 80 + 92 11083 := 08 + 19 + 26 + 37 + 44 + 51 + 65 + 70 + 82 + 93 11084 := 07 + 19 + 28 + 36 + 41 + 55 + 60 + 73 + 82 + 94 11085 := 08 + 19 + 26 + 37 + 44 + 50 + 65 + 71 + 82 + 93 11086 := 07 + 19 + 28 + 36 + 40 + 55 + 61 + 73 + 82 + 94 11087 := 06 + 19 − 28 + 37 + 42 + 54 + 65 + 70 + 81 + 93 . The whole work is from 1 to 11111. For details refer [7]. Analysing the procedures given in sections 1.1 and 1.2 , we observe that in section 1.1 , all the 9 digits are used in increasing and decresing ways to bring natural numbers, where each digit appears only once. In this case, the operations used are, addition, subtraction, multiplication, division, potentiation, factorial and square-root. The section 1.2 works with representations of natural numbers written in a way that we use each digit twice, where bases and exponents are of same digits with different permutations. Subsection 1.2.1 choose the digits from 1 to 9, according to necessity, while subsection 1.2.2 works with all the 10 digits, i.e., 0 to 9, along with the operations of addition and subtraction. 1.3 Third Way: Single Digit Representations In [1], author wrote natural numbers 1 to 1000 using single digit in each case. For example, 995 := (11 − 1)(1+1+1) − (11 − 1)/(1 + 1) 717 := (1 + 1)11 − 11(1+1+1) := 222 + 222 + 22/2 := 22 + 2 × (222 + 2) + 2/2 := 3(3+3) − 3 − 3 × 3 := 3 × 333 − 3 − 3/3 := 4 × (4 × 44 + 4) − 4 + 4/4 := 4 × (44 − 4 − 4) + 4 − 4/4 := (55 × (55 + 5 + 5) + 5 + 5)/5 := 5 × (5 + 5) × (5 × 5 − 5) − 5 := (6 × 6/(6 + 6))6 − 6 − 6 := 666 + 6 × 66 − 66 − 6/6 := 777 − 7 × 7 − 77/7 := (7 + 7) × (77 − 7) + 7 + 7 + 7/7 := 8 × 88 + (88 + 8 + 8)/8 := 888 + 88 + 8 + 88/8 := 9 × 9 × 9 − (99 + 9)/9. := 999 − (9 + 9 + 9 + 9)/9. 1000 := (11 − 1)(1+1+1) 786 := ((1 + 1 + 1)(1+1+1) + 1)(1+1) + 1 + 1 := (22 + 2 + 2 + 2)2 + 2 := 2 × (222 + 2(2+2) ) := 33 × (33 − 3) − 3 − 3 := (3 × 3 + 3/3)3 := 4 × (4 × (44 + 4) + 4) + (4 + 4)/4 := 4 × (44 − 4) − 4 − 4 := 5 + (55 − 5/5)/(5 − 5/5) := 5 × (5 + 5) × (5 × 5 − 5) := 66 × (6 + 6) − 6 := ((66 − 6)/6)(6×6/(6+6)) := 777 + 7 + (7 + 7)/7 := (7 + 7 + 7 − 7/7) × (7 × 7 + 7/7) := 8 × (88 + 8) + 8 + (88 − 8)/8 := 888 + 88 + 8 + 8 + 8 := 9 × 99 − 99 − 9 + (9 + 9 + 9)/9 := 999 + 9/9. 4 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Values are calculated up to 1.000.000 (.txt file), but the work is written only from 0 to 1000. For details, refer Taneja [8]. Recent extension to 20000 in four parts refer Taneja [9, 10, 11] 1.4 Forth Way: Single Letter Representations We observe that the numbers written in previous section 1.3 are in terms of each digit, not necessarily symmetric. But there are numbers, that can be written in a symmetric way, see examples below: 5= 11 − 1 22 − 2 33 − 3 44 − 4 55 − 5 66 − 6 77 − 7 88 − 8 99 − 9 = = = = = = = = . 1+1 2+2 3+3 4+4 5+5 6+6 7+7 8+8 9+9 6= 11 + 1 22 + 2 33 + 3 44 + 4 55 + 5 66 + 6 77 + 7 88 + 8 99 + 9 = = = = = = = = . 1+1 2+2 3+3 4+4 5+5 6+6 7+7 8+8 9+9 55 = 111 − 1 222 − 2 333 − 3 444 − 4 555 − 5 666 − 6 777 − 7 888 − 8 999 − 9 = = = = = = = = . 1+1 2+2 3+3 4+4 5+5 6+6 7+7 8+8 9+9 56 = 111 + 1 222 + 2 333 + 3 444 + 4 555 + 5 666 + 6 777 + 7 888 + 8 999 + 9 = = = = = = = = . 1+1 2+2 3+3 4+4 5+5 6+6 7+7 8+8 9+9 Motivated by this idea, instead working for each digit separately, we can work with a single letter "a", for example, • Running-Type 5 := (aa − a)/(a + a) 1991 := (aaaaaa/aaa × (a + a) − aa)/a 6 := (aa + a)/(a + a) 2020 := (aaaaa − a)/aa × (a + a)/a 55 := (aaa − a)/(a + a) 2035 := (aaaa − a)/(a + a + a) × aa/(a + a) 56 := (aaa + a)/(a + a) 4477 := (aaa/(a + a + a) × aa × aa)/(a × a) 561 := (aaaa + aa)/(a + a) 4999 := (aaaaa − aaaa − a − a)/(a + a) 666 := aaa × (aa + a)/((a + a) × a) 5000 := (aaaaa − aaaa)/(a + a). 925 := (aaaaa − aa)/(aa + a) 1089 := (aaaa − aa − aa)/a • Fraction-Type aa − a a+a aa + a 6 := a+a aaa − a 55 := a+a aaa + a 56 := a+a aaaa + aa 561 := a+a aaa × (aa + a) 666 := (a + a) × a (aa + a) × aa − a) × (aa + a) a 786 := (a + a) × a aaaaa − aa 925 := aa + a aaaa − aa − aa 1089 := a aaaaaa × (a + a) − aa aaa 1991 := a 5 := ( 5 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 aaaaa − a × (a + a) aa 2020 := a aaaa − a × aa a + a + a 2035 := a+a aaa × aa × aa a + a + a 4477 := a×a (aaaaa − aaaa − a − a) (a + a) (aaaaa − aaaa) 5000 := (a + a) (aaaa − a − a − a) × aaa 122988 := . a×a 4999 := where a ∈ {1, 2, 3, 4, 5, 6, 7, 8, 9}, and aa = 10 × a + a, aaa = 102 × a + 10 × a + a, etc. The full work is from 1 to 11111 numbers, written in two different ways. One running type [15] and another in fraction-type way [16]. For previous work refer [12, 13]. The summary of author’s work on recreation of numbers in different situations refer [22]. 1.5 Running Expressions Previous subsections, works with natural numbers in different situations using 9 or 10 digits. In this section also we shall do similar kind of work, but in little different way. It is based on the idea of subsection 1.1. We divide the numbers in equal parts, two or three in such a way that the results are increasing and decreasing orders 1 to 9 or 9 to 1 or 9 to 0 separated by equalities, for example, 1234 = (5 + 67)/(8 × 9) 98/7 + 6 = 54/3 + 2 × 1. Below are more examples, written in increasing and decreasing ways: • Increasing Order 12 = 3 + 4 + (5 × 6 + 7 + 8)/9 123 = 4 + 5 + 6 × 7 + 8 × 9 1234 = −5 + 6! + 7 + 8 12 + 3 × 4 + 5 × (6 + 7) = 89 1 + 23 + 45 + 6! = 789 • Decreasing Order 6 p 9 (1) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 98 − 7 × (6 + 5) × (4 − 3) = 21 p 9 × 87 + 6 + 54 = 321 (2) 9 − 8 + 7! − 6 × 5! = 4321 9 − 8 + 7 − 6 + 5 + 4 − 3 + 2 = 10 9 × (8 + 7) + 6 + 5 + 43 = 210 (9 − 87 + 6!) × 5! /4! = 3210 98 = (7 + 6) × 5 + 4 × 3 + 21 987 = 6! + 5! + (4 + 3) × 21 98 = 7 + 65 + 4 + 32 − 10 987 = 6! + 54 + 3 + 210 Above examples give representations separated by equality sign having the digits in either increasing and/or decreasing orders. There are numbers that can be written in increasing as well as decreasing orders at the same time with single or double equality signs, such as p 16 := 12/3 × 4 = 5 + 6 + (7 + 8)/ 9 := (9 + 87)/6 = 5 + 4 + 3 × 2 + 1 p p 18 = 12 + 3! = 4+5×6 = 7+8+ 9 p p = 9 + 8 + 7 = 6 × 54 = −3 + 21 = 3! + 2 + 10 p 120 := (1 × 2 + 3)! = 4 × 5 × 6 = ((7 + 8)/ 9)! p := (( 9)! − 8 + 7)! = 6 × 5 × 4 = (3 × 2 − 1)! = 3! × 2 × 10 (3) The above three examples divide the numbers in two and three parts respectively with equality signs using the numbers in increasing as well as decreasing orders. From the examples (1), (2) and (3), we observe that the operations used are addition, subtraction, multiplication, division, potentiation, factorial and square-root. More details can be seen in [22, 18, 19]. In this work, our interest is to found examples similar to (1), (2) and (3), using Fibonacci sequence values. 1.5.1 Running Expressions with Fibonacci Sequence Fibonacci sequence numbers are well known in literature. This sequence is defined as F (0) = 0, F (1) = 1, F (n + 1) = F (n) + F (n − 1), n ≥ 1. Similar to (1) and (2), given above, below are examples of running expressions using Fibonacci sequence numbers. Most of the results uses basic operations, except numbers 21 and 9876, where extra operation, such as factorial is used. 7 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 • Increasing Order 12 = F (3) × F (4) × F (5) + 6 − 7 − 8 − 9 (4) 123 = −4 × 5 × (6 − F (7)) − 8 − 9 1234 = 5 × F (6) × F (7) + F (8) × F (9) 1 + F (23 + F (4)) + (5 − 6)7 = 89 1 × 2 × 34 × 5 − F (F (6)) = 789 1 + 23 + F (4 × 5) = 6789. • Decreasing Order 9 + (−F (8)/7 + 6) × 5 − F (4)! + 3 = 21 (5) −98 − F (7) + F (6) × 54 = 321 (F (9) × F (8) + 7) × 6 − 5 = 4321 98 = (7 − 6) × 5 + F (4) × (32 − 1) 987 = (6 − 5) × F (4 × (3 + 2 − 1)) 98 = −5 − 4 − 3 + 2 × F (10) 987 = (6 − 5)4 × F (3 × 2 + 10) p 9876 = ( 5 + 4)! + F (F (3!) × 2) × 10 More details can be seen in Taneja [20]. 1.5.2 Running Expressions with Triangular Numbers Triangular numbers are very much famous in the literature of mathematics. These are given by 1, 3, 6, 10, 15, 21, ... The general formula to write these numbers is given by T (n) = 1 + 2 + 3 + ... = n +1 = C (n + 1, 2) 2 The letter "C " represents as "binomial coefficient". In this paper our aim is to bring running expressions by use of triangle numbers. This we have done in subsequent sections. Due to high quantity of numbers, we the work is limited to 3 digits in case of single equality. As a part of results, see below some interesting examples, 8 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 • Increasing Order 12 = T (3) − 4 − 5 + 6 − (7 − 8) × 9 (6) 123 = (−4 + 5) × 6 + T (7) + 89 1234 = T (56 × 7/8) + 9 1 + 2 + T (3) × 4 − 5 + 67 = 89 1 + 2 + T (3) + T (45 − 6) = 789 −1 − 2 + T (3) + T (−4 + T (T (5))) = 6789. • Decreasing Order 9 × 8 − T (7) − T (6) + 5 − 4 − 3 = 21 (7) T (9 + 8) − 7 × 6 + T (5 × 4) = 321 (−T (9) + T (T (8))) × 7 − T (6) − 5 = 4321 98 = (7 − 6) × 54 − T (32) + 1 987 = T (6) × (5 × T (4) − 3) × (2 − 1) 9876 = T (5 × T (4 + 3)) + T (2 + 1) 98 = (7 − 6) × T (5) − 4 + 32 + T (10) (8) 987 = (6 − 5) × 4 × (T (T (T (3))) + 2) + T (10) 9876 = (−5 + T (T (T (4)))) × T (3) + T (T (−2 + 10)) 9 × 8 − T (7) − T (6) − T (5) − 4 + 3 × 2 = 10 T (9) + 87 × (6 − 5) + T (4 × 3) = 210 T (9) + 8 + 7 + T (6) × T (5) × T (4) = 3210 More details can be seen in Taneja [21]. 2 Single Digit Representations From 1 to 20000 The whole work brings numbers 1 to 10000 written in terms of single digits. Since, it is not possible to put all the numbers in single work, we divided it in four parts as given below: • Part I : From 0001 to 5000; • Part II : From 5001 to 10000 [9]; • Part III : From 10001 to 15000 [10]; • Part IV : From 15000 to 20000 [11]. 9 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 This paper brings first part giving single digit representations of natural numbers from 1 to 5000. For other parts refer [9, 10, 11]. Remark 2.1. Due to high quantity of numbers the there so many extra brackets. After simplifications, these unnecessary brackets can be removed easily. 2.1 Single Digit Representation: 1-5000 This subsection bring the first part of the whole project. Here, the numbers are represented from 1 to 5000 in terms of different digits. The work done previously up to 1000 [6] is also repeated here. Ï 1 := 1 Ï 9 := 11 − 1 − 1 Ï 5 := 1 + 1 + 1 + 1 + 1 := 2/2 := 2 + 2/2 + 2 := (2/2 + 2)2 := 3/3 := 3 + 3 − 3/3 := 3 × 3 := 4/4 := 4 + 4/4 := 4 + 4 + 4/4 := 5/5 := 5 := 5 + 5 − 5/5 := 6/6 := 6 − 6/6 := 6 + 6 × 6/(6 + 6) := 7/7 := 7 − (7 + 7)/7 := 7 + (7 + 7)/7 := 8/8 := 8 + 8 − 88/8 := 8 + 8/8 := 9/9 := (9 × 9 + 9)/(9 + 9) := 9 Ï 2 := 1 + 1 Ï 6 := (1 + 1) × (1 + 1 + 1) Ï 10 := 11 − 1 := 2 := 2 + 2 + 2 := 2 + 2 × (2 + 2) := 3 − 3/3 := 3 + 3 := 3 × 3 + 3/3 := (4 + 4)/4 := 4 + (4 + 4)/4 := (44 − 4)/4 := (5 + 5)/5 := 5 + 5/5 := 5 + 5 := (6 + 6)/6 := 6 := (66 − 6)/6 := (7 + 7)/7 := 7 − 7/7 := (77 − 7)/7 := (8 + 8)/8 := 8 − (8 + 8)/8 := 8 + (8 + 8)/8 := (9 + 9)/9 := 9 − (9 + 9 + 9)/9 := 9 + 9/9 Ï 3 := 1 + 1 + 1 Ï 7 := 1 + (1 + 1) × (1 + 1 + 1) Ï 11 := 11 := 2 + 2/2 := 2 + 2 + 2 + 2/2 := 22/2 := 3 := 3 + 3 + 3/3 := 33/3 := 4 − 4/4 := 4 + 4 − 4/4 := 44/4 := 5 − (5 + 5)/5 := 5 + (5 + 5)/5 := 55/5 := 6 × 6/(6 + 6) := 6 + 6/6 := 66/6 := (7 + 7 + 7)/7 := 7 := 77/7 := 88/8 − 8 := 8 − 8/8 := 88/8 := (9 + 9 + 9)/9 := 9 − (9 + 9)/9 := 99/9 Ï 4 := 1 + 1 + 1 + 1 Ï 8 := (1 + 1)1+1+1 Ï 12 := 1 + 11 := 2 + 2 := 2 × (2 + 2) := 2 × (2 + 2 + 2) := 3 + 3/3 := 3 × 3 − 3/3 := 3 + 3 × 3 := 4 := 4 + 4 := 4 + 4 + 4 := 5 − 5/5 := 5 + 5 − (5 + 5)/5 := (55 + 5)/5 := 6 − (6 + 6)/6 := 6 + (6 + 6)/6 := 6 + 6 := 77/7 − 7 := 7 + 7/7 := (77 + 7)/7 := 8 × 8/(8 + 8) := 8 := (88 + 8)/8 := (9 × 9 − 9)/(9 + 9) := 9 − 9/9 := (99 + 9)/9 10 Inder J. Taneja Ï 13 := 1 + 1 + 11 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 18 := (1 + 1) × (11 − 1 − 1) 2+2 Ï 23 := 1 + 11 + 11 := 22 + 2/2 := 2 + 22/2 := 2 + 2 := 3 + 3 × 3 + 3/3 := 3 × (3 + 3) := 33 − 3 − 3/3 := 4 + 4/4 + 4 + 4 := 4 × 4 + (4 + 4)/4 := 4 + 4 + 4 + 44/4 := (55 + 5 + 5)/5 := 5 + (55 + 5 + 5)/5 := 5 × 5 − (5 + 5)/5 := 6 + 6/6 + 6 := 6 + 6 + 6 := 6 + 6 + 66/6 := 7 + 7 − 7/7 := 7 + 77/7 := 7 + 7 + 7 + (7 + 7)/7 := (88 + 8 + 8)/8 := 8 + 8 + (8 + 8)/8 := 8 + 8 + 8 − 8/8 := (99 + 9 + 9)/9 := 9 + 9 := (99 + 99 + 9)/9 Ï 14 := 1 + 1 + 1 + 11 2+2 Ï 19 := (1 + 1) × (11 − 1) − 1 Ï 24 := (1 + 1) × (1 + 11) := 22 − 2/2 − 2 := 2 + 22 := 3 + 33/3 := 3/3 + 3 × (3 + 3) := 33 − 3 := 4 + (44 − 4)/4 := 2 −2 := 4 + 4 + 44/4 := 4 + (4 × 4 + 4) := 5 + 5 − 5/5 + 5 := 5 × 5 − 5 − 5/5 := 5 × 5 − 5/5 := 6 + 6 + (6 + 6)/6 := 6 + 6/6 + 6 + 6 := 6 + (6 + 6 + 6) := 7 + 7 := 7 + (7 + 77)/7 := 7 + ((77 − 7)/7 + 7) := 8 + 8 − (8 + 8)/8 := 8 + 88/8 := 8 + (8 + 8) := 9 + (9 × 9 + 9)/(9 + 9) := 9 + 9/9 + 9 := 9 + ((9 − ((9 + 9 + 9)/9)) + 9) Ï 15 := 1 + 1 + 1 + 1 + 11 Ï 25 := 1 + (1 + 1) × (1 + 11) Ï 20 := (1 + 1) × (11 − 1) := 2 + 2 + 22/2 := 22 − 2 := 2 + 22 + 2/2 := 3 + 3 + 3 × 3 := 3 × 3 + 33/3 := 33 − 3 + 3/3 := 4 + 44/4 := 4 + 4 × 4 := 4 + 4 + 4 × 4 + 4/4 := 5 + 5 + 5 := 5 × 5 − 5 := 5 × 5 := 6 + 6 + 6 × 6/(6 + 6) := 6 + ((6 + 6)/6 + 6 + 6) := 6 × 6 − 66/6 := 7 + 7 + 7/7 := 7 + 7 + 7 − 7/7 := 7 + 7 + 77/7 := 8 + 8 − 8/8 := 8 + (88 + 8)/8 := 8 + 8 + 8 + 8/8 := 9 + 9 − (9 + 9 + 9)/9 := 9 + 99/9 := 9 + 9 + 9 − (9 + 9)/9 Ï 16 := (1 + 1)1+1+1+1 := 22+2 Ï 26 := (1 + 1) × (1 + 1 + 11) Ï 21 := 11 + 11 − 1 := 22 − 2/2 := 2 + 22 + 2 := 3 − 33/3 := 3 + 3 × (3 + 3) := 33 − 3/3 := 4 × 4 := 4 + 4 × 4 + 4/4 := 4 + 44 × 4/(4 + 4) := 5 + 55/5 := 5 + 55/5 + 5 := 5 × 5 + 5/5 := 6 + (66 − 6)/6 := 6 × (6 × 6 + 6)/(6 + 6) := 6 × 6 + (6 − 66)/6 := 7 + 7 + (7 + 7)/7 := 7 + 7 + 7 := 7 + 7 + (77 + 7)/7 := 8 + 8 := 8 + (88 + 8 + 8)/8 := 8 + 8 + 8 + (8 + 8)/8 := 9 + 9 − (9 + 9)/9 := 9 + (99 + 9)/9 := 9 + 9 + 9 − 9/9 3 Ï 17 := 1 + (1 + 1)1+1+1+1 Ï 27 := (1 + 1 + 1)1+1+1 Ï 22 := 11 + 11 := 2/2 + 22+2 := 22 := 2 + 22 + 2/2 + 2 := 3 + 33/3 + 3 := 33 − 33/3 := 33 := 4 × 4 + 4/4 := 44 × 4/(4 + 4) := 4 × 4 + 44/4 := 5 + (55 + 5)/5 := (55 + 55)/5 := 5 × 5 + (5 + 5)/5 := 6 + 66/6 := (66 + 66)/6 := 66 × 6/(6 + 6) − 6 := 7 + (77 − 7)/7 := 7 + 7 + 7 + 7/7 := 7 + 7 + 7 + 7 − 7/7 := 8 + 8 + 8/8 := (88 + 88)/8 := 8 + 8 + 88/8 := 9 + 9 − 9/9 := (99 + 99)/9 := 9 + 9 + 9 11 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 28 := 1 + (1 + 1 + 1)1+1+1 Ï 33 := 11 × (1 + 1 + 1) := 2 + 22 + 2 + 2 := 22 + 22/2 := 2 + (2 + 2 + 2)2 := 3 + 3/3 := 33 := 33 + 33/3 := 44 − 4 × 4 := 4/4 + 4 × (4 + 4) 3 := 5 + 5 × 5 − (5 + 5)/5 Ï 38 := 1 + 111/(1 + 1 + 1) := 44 − 4 − (4 + 4)/4 5 := 5/5 + ((5 + 5)/5) := 5 + 5/5 + ((5 + 5)/5)5 := 6 + (66 + 66)/6 := 66 × 6/(6 + 6) := 6 × 6 + (6 + 6)/6 := 7 + 7 + 7 + 7 := 7 + 7 + 7 + (77 + 7)/7 := 7 × 7 − 77/7 := 8 + 8 + (88 + 8)/8 := 8 + 8 + 8 + 8 + 8/8 := 8 + 8 + (88 + 88)/8 := 9 + 9 + 9 + 9/9 := 99 × 9/(9 + 9 + 9) := 9 + 9 + 9 + 99/9 Ï 29 := (11 − 1) × (1 + 1 + 1) − 1 Ï 34 := 1 + 11 × (1 + 1 + 1) Ï 39 := (1 + 1 + 1) × (1 + 1 + 11) := 2 + 2 + 2 + 22 + 2/2 := 2 + 2 × 22+2 := 2 × (22 − 2) − 2/2 := 3 + 33 − 3/3 := 3/3 + 33 := 3 + 3 + 33 := 44 + 4/4 − 4 × 4 := 44 + (4 − 44)/4 := 44 − 4 − 4/4 := 5 + 5 × 5 − 5/5 := 5 + 5 + 5 × 5 − 5/5 := 55 − 5 − 55/5 := 6 × 6 − 6 − 6/6 := 6 × 6 − (6 + 6)/6 := 6 + 66 × 6/(6 + 6) := 7 + 7 + 7 + 7 + 7/7 := 7 × 7 − 7 − 7 − 7/7 := 7 × 7 + (7 − 77)/7 := 8 + 8 + (88 + 8 + 8)/8 := 8 + 8 + 8 + 8 + (8 + 8)/8 := 8 + 8 + 8 + 8 + 8 − 8/8 := 9 + 9 + 99/9 := 9 + 9 + 9 + 9 − (9 + 9)/9 := 9 + 9 + 9 + (99 + 9)/9 Ï 30 := (11 − 1) × (1 + 1 + 1) := 22 + 2 × (2 + 2) 3 Ï 35 := 1 + 1 + 11 × (1 + 1 + 1) Ï 40 := (1 + 1) × (1 + 1) × (11 − 1) := 2 + 22/2 + 22 := 2 × (22 − 2) := 3 + 33 − 3/3 := 3 + 3 + 33 + 3/3 := 4 × (4 + 4) − (4 + 4)/4 := 4 + 4 × (4 + 4) − 4/4 := 44 − 4 := 5 + 5 × 5 := 5 + 5 + 5 × 5 := 5 + 5 + 5 + 5 × 5 := 6 × 6 − 6 := 6 × 6 − 6/6 := 6 + 6 × 6 − (6 + 6)/6 := 7 × 7 − 7 − (7 + 7)/7 := 3 + 3 := 7 + 7 + 7 + 7 + (7 + 7)/7 := 7 × 7 − 7 − 7 := 8 + (88 + 88)/8 := 8 + 8 + 8 + 88/8 := 8 + 8 + 8 + 8 + 8 := 9 + 9 + (99 + 9)/9 := 9 + 9 + 9 + 9 − 9/9 := (9 × 9 × 9 − 9)/(9 + 9) Ï 31 := 1 + (11 − 1) × (1 + 1 + 1) := 22 + (2/2 + 2) 2 3 Ï 36 := (1 + 1 + 1) × (1 + 11) := (2 + 2 + 2) 2 Ï 41 := 1 + (1 + 1) × (1 + 1) × (11 − 1) := 2/2 + 2 × (22 − 2) := 3 + 3 + 3/3 := 3 + 33 := 3 + 33/3 + 33 := 4 × (4 + 4) − 4/4 := 4 + 4 × (4 + 4) := 44 − 4 + 4/4 := 5 + 5 × 5 + 5/5 := 5 × 5 + 55/5 := 5 + 5 × 5 + 55/5 := 6 × 6 + 6/6 − 6 := 6 × 6 := 6 + 6 × 6 − 6/6 := 7 × 7 − 7 − 77/7 := 7/7 + (7 × 7 − (7 + 7)) := 7 × 7 − 7 − 7/7 := 8 + 8 + 8 + 8 − 8/8 := (8 × 8 + 8) × 8/(8 + 8) := 8 + 8 + 8 + 8 + 8 + 8/8 := 9 + (99 + 99)/9 := 9 + 9 + 9 + 9 := (9 × 9 × 9 + 9)/(9 + 9) Ï 32 := 11 × (1 + 1 + 1) − 1 := 2 × 2 2+2 := 33 − 3/3 Ï 37 := 111/(1 + 1 + 1) Ï 42 := (1 + 1) × (11 + 11 − 1) := 2/2 + (2 + 2 + 2)2 := 2 × 22 − 2 := 3 + 33 + 3/3 := 3 × 3 + 33 := 4 + 4 × (4 + 4) + 4/4 := 4 × (4 + 4) 5 := 44 − (4 + 4)/4 := 5 + ((5 + 5)/5)5 + 5 5 := ((5 + 5)/5) := 5 + ((5 + 5)/5) := 6 × 6 + (6 + 6)/6 − 6 := 6 × 6 + 6/6 := 6 + 6 × 6 := 7 + 77/7 + 7 + 7 := 7 × 7 − (77 + 7)/7 := 7 × 7 − 7 := 8 + 8 + 8 + 8 := 888/(8 + 8 + 8) := 8 × 8 − (88 + 88)/8 := 9 + (99 + 99 + 9)/9 := 9 + 9 + 9 + 9 + 9/9 := 9 + 99 × 9/(9 + 9 + 9) 12 Inder J. Taneja Ï 43 := (1 + 1) × (11 + 11) − 1 := 2 × 22 − 2/2 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 48 := (1 + 1) × (1 + 1) × (1 + 11) Ï 53 := (111 − 1)/(1 + 1) − 1 − 1 := 2/2 + 2 × (22 + 2 + 2) := 2 × (22 + 2) := 3 × 3 + 3/3 + 33 := 3 × 3 − 33 := 33 + 33 − 3/3 := 44 − 4/4 := 4 + 44 := (44 − 44)/4 := 55 − (55 + 5)/5 3 := 55 + 5 − (5 + 5)/5 := 55 − (5 + 5)/5 := 6 + 6 × 6 + 6/6 := 6 + 6 + 6 × 6 := 6 + 6 × 6 + 66/6 := 7 × 7 + 7/7 − 7 := 7 × 7 − 7/7 := 7 × 7 − 7 + 77/7 := 8 + 8 + 8 + 8 + 88/8 := 8 × 8 − 8 − 8 := 8 × 8 − 88/8 := 9 + 9 + 9 + 9 + 9 − (9 + 9)/9 := 9 + 9 + 9 + 9 + (99 + 9)/9 := 9 × 9 − 9 − 9 − 9 − 9/9 Ï 44 := (1 + 1) × (11 + 11) := 2 × 22 Ï 49 := 1 + (1 + 1) × (1 + 1) × (1 + 11) := 2/2 + 2 × (22 + 2) Ï 54 := (111 − 1)/(1 + 1) − 1 := 2 + 2 × (22 + 2 + 2) 3 := 33 + 33/3 := 3 + 33 − 33/3 := 3 × 3 × (3 + 3) := 44 := 4 + 44 + 4/4 := 44 + (44 − 4)/4 := 55 − 55/5 := 55 − 5 − 5/5 := 55 − 5/5 := 6 + 6 × 6 + (6 + 6)/6 := 6 + 6 + 6 × 6 + 6/6 := 66 − 6 − 6 := 7 × 7 − 7 + (7 + 7)/7 := 7 × 7 := 7 + 7 × 7 − (7 + 7)/7 := 88 × 8/(8 + 8) := 8 × 8 − 8 − 8 + 8/8 := 8 × 8 + (8 − 88)/8 := 9 + 9 + 9 + 9 + 9 − 9/9 := (9 × 99 − 9)/(9 + 9) := 9 × 9 − 9 − 9 − 9 Ï 45 := 1 + (1 + 1) × (11 + 11) Ï 50 := (11 − 1)1+1 /(1 + 1) Ï 55 := (111 − 1)/(1 + 1) := 2 × 22 + 2/2 := 2 + 2 × (22 + 2) := 22/2 + 2 × 22 := 3 + 3 × 3 + 33 := 3 + 3 + 33 + 33/3 := 33 + 33 + 3/3 := 44 + 4/4 := 4 + 44 + (4 + 4)/4 := 44 + 44/4 := 55 − 5 − 5 := 5 × (5 + 5) := 55 := 666/6 − 66 := 6 + 6 + 6 × 6 + (6 + 6)/6 := 66 − 66/6 := 7 + 7 × 7 − 77/7 := 7 × 7 + 7/7 := 7 + 7 × 7 − 7/7 := 8 × 8 − 8 − 88/8 := 8 × 8 − 8 − 8 + (8 + 8)/8 := 8 × 8 − 8 − 8/8 := 9 + 9 + 9 + 9 + 9 := (9 × 99 + 9)/(9 + 9) := (999 − 9)/(9 + 9) Ï 46 := (1 + 1) × (1 + 11 + 11) := 2 + 2 × 22 Ï 51 := 1 + (11 − 1)1+1 /(1 + 1) := 2 + 2 × (22 + 2) + 2/2 3 3 Ï 56 := (1 + 111)/(1 + 1) := 2 × (22 + 2 + 2 + 2) := 3 + 3 × 3 + 33 + 3/3 := 3 + 3 − 3 := (333 + 3)/(3 + 3) := 44 + (4 + 4)/4 := 4 + 4 + 44 − 4/4 := 4 + 4 + 4 + 44 := 55 + 5/5 − 5 − 5 := 55 + 5/5 − 5 := 55 + 5/5 := 6 × 6 + (66 − 6)/6 := 6 − 66 + 666/6 := 66 + (6 − 66)/6 := 7 × 7 − (7 + 7 + 7)/7 := 7 × 7 + (7 + 7)/7 := 7 + 7 × 7 := 8 × 8 − 8 − (88 − 8)/8 := 8 × 8 − (88 + 8 + 8)/8 := 8 × 8 − 8 := 9 + 9 + 9 + 9 + 9 + 9/9 := 9 × (9 + 9) − 999/9 := (999 + 9)/(9 + 9) Ï 47 := 1 + (1 + 1) × (1 + 11 + 11) := 2 + 2 × 22 + 2/2 Ï 52 := (1 + 1) × (1 + 1) × (1 + 1 + 11) := 2 + 22/2 + 2 × 22 := 2 × (22 + 2 + 2) 3 Ï 57 := 1 + (1 + 111)/(1 + 1) := 3 + 33 + 33 3 := 3 + 33/3 + 33 := 3 + 3/3 − 3 + 3 := 4 + 44 − 4/4 := 4 + 4 + 44 := 5 + 5 + 5 + ((5 + 5)/5)5 := 55 − 5 + (5 + 5)/5 := 4 + (44 − 44)/4 := 55 + (5 + 5)/5 6 := 6 × 6 + 66/6 := ((6 + 6)/6) − 6 − 6 := 66 + (6 + 6 − 66)/6 := 7 × 7 − (7 + 7)/7 := 7 × 7 + (7 + 7 + 7)/7 := 7 + 7/7 + 7 × 7 := 8 × 8 − 8 − 8 − 8/8 := 8 + 88 × 8/(8 + 8) := 8/8 + 8 × 8 − 8 := 9 + 9 + 9 + 9 + 99/9 := 9 × 9 − 9 − 9 − 99/9 := (((9 + 9)/9)9 + 9/9)/9 13 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 58 := 1 + 1 + (1 + 111)/(1 + 1) := 22 + (2 + 2 + 2) 2 Ï 63 := (1 + 1 + 1) × (11 + 11 − 1) := 2 2+2+2 Ï 68 := (1 + 1) × (1 + 11 × (1 + 1 + 1)) := 2 + 2 + 22+2+2 − 2/2 := (3/3 + 3)3 − 3 − 3 := 3 + 33 + 33 := ((3 + 3)3 − 3)/3 − 3 := (44 − 4 − 4)/4 − 4 := (44 − 4)/4 := 4 + 4 × 4 × 4 := 5 + 55 − (5 + 5)/5 := (55 /5 + 5)/(5 + 5) := 5 + (55 /5 + 5)/(5 + 5) := ((6 + 6)/6)6 − 6 := 66 − 6 × 6/(6 + 6) := 66 + (6 + 6)/6 := 7 + 7 × 7 + (7 + 7)/7 := 7 + 7 + 7 × 7 := 77 − 7 − (7 + 7)/7 := 8 × 8 − 8 + (8 + 8)/8 := 8 × 8 − 8/8 := 8 × 8 + 8 × 8/(8 + 8) := 9 + (9 × 99 − 9)/(9 + 9) := 9 × 9 − 9 − 9 := 9 × 9 − (99 + 9 + 9)/9 Ï 59 := (111+1 − 1)/(1 + 1) − 1 Ï 64 := (1 + 1)(1+1)×(1+1+1) Ï 69 := (1 + 1 + 1) × (1 + 11 + 11) := 22/2 + 2 × (22 + 2) := 22+2+2 := (2/2 + 2) × (22 + 2/2) := 33 + 33 − 3/3 := (3/3 + 3)3 := 3 + 33 + 33 := (44 − 4)/4 − 4 := 4 × 4 × 4 := 4 + (44 + 4)/4 := 5 + 55 − 5/5 := 5 + 5 + 55 − 5/5 := 5 + 5 + 5 + 55 − 5/5 := 66 − 6/6 − 6 := ((6 + 6)/6) := 66 + 6 × 6/(6 + 6) := 7 × 7 + (77 − 7)/7 := 7 + 7 + 7 × 7 + 7/7 := 77 − 7 − 7/7 := 8 × 8 + 88/8 − 8 − 8 := 8 × 8 := 88 − 8 − 88/8 := 9 + (9 × 99 + 9)/(9 + 9) := 9/9 + 9 × 9 − 9 − 9 := 9 × 9 − (99 + 9)/9 6 Ï 60 := (111+1 − 1)/(1 + 1) Ï 65 := 1 + (1 + 1)(1+1)×(1+1+1) Ï 70 := (11 − 1 − 1)1+1 − 11 := 2 × (2 × (2 + 2) + 22) := 2/2 + 22+2+2 := 22 + 2 × (22 + 2) := 33 + 33 := (3/3 + 3)3 + 3/3 := 3 + (((3/3 + 3)3 ) + 3) := 4 × 4 + 44 := (44 + 4)/4 := 4 + (((44 + 4) + 4)/4) := 5 + 55 := 5 + 5 + 55 := 5 + (55 + 5 + 5) := 66 − 6 := 66 − 6/6 := 6 + ((6 + 6)/6)6 := 7 × 7 + 77/7 := 77 − (77 + 7)/7 := 77 − 7 := 8 × 8 − 8 × 8/(8 + 8) := 8/8 + 8 × 8 := 8 + 8 × 8 − (8 + 8)/8 := 9 × 9 − 9 − (99 + 9)/9 := 9 + (999 + 9)/(9 + 9) := 9 × 9 − 99/9 Ï 61 := (1 + 111+1 )/(1 + 1) 2+2+2 Ï 66 := (1 + 1) × 11 × (1 + 1 + 1) Ï 71 := (1 + 11)1+1 /(1 + 1) − 1 := 2 + 22+2+2 := 2 × (2 + 2 + 2)2 − 2/2 := (3/3 + 3)3 − 3 := 33 + 33 := ((3 + 3)3 − 3)/3 := (44 + 4)/4 − 4 := (44 + 4 + 4)/4 := 4 + (44 − 4)/4 + 4 := 5 + 55 + 5/5 := 55 + 55/5 := 5 + 55 + 55/5 := 66 + 6/6 − 6 := 66 := 6 + 66 − 6/6 := 7 × 7 + (77 + 7)/7 := 77 − 77/7 := 7/7 + 77 − 7 := 2 − 2/2 − 2 := 8 + 8 × 8 − 88/8 := 8 × 8 + (8 + 8)/8 := 8 + 8 × 8 − 8/8 := 9 × 9 − 9 − 99/9 := (9 + 9) × 99/(9 + 9 + 9) := 9 × 9 − 9/9 − 9 Ï 62 := 1 + (1 + 111+1 )/(1 + 1) Ï 67 := 1 + (1 + 1) × 11 × (1 + 1 + 1) Ï 72 := (1 + 11)1+1 /(1 + 1) := 22+2+2 − 2 := 3 + 33 − 3/3 + 3 := 2 + 22+2+2 + 2/2 3 4 := 3 + (3/3 + 3) := 2 × (2 + 2 + 2)2 3 := 3 × (33 − 3) := (4 − 4 − 4)/4 := 4 + (44 − 4)/4 := 4 + 4 + 4 × 4 × 4 := 5 + 55 + (5 + 5)/5 := 55 + (55 + 5)/5 := 5 + 55 + (55 + 5)/5 := 66 − 6 + (6 + 6)/6 := 66 + 6/6 := 6 + 66 := 7 + 7 + 7 × 7 − 7/7 := 7 + 7 × 7 + 77/7 := 77 + (7 + 7)/7 − 7 := 8 × 8 − (8 + 8)/8 := 8 × 8 − 8 + 88/8 := 8 + 8 × 8 := 9 × 9 − 9 − 9 − 9/9 := 9 + 9 + (9 × 99 − 9)/(9 + 9) := 9 × 9 − 9 14 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 73 := 1 + (1 + 11)1+1 /(1 + 1) := 2/2 + 2 × (2 + 2 + 2)2 Ï 78 := 111 − 11 × (1 + 1 + 1) := 2 + (2/2 + 2)2+2 := 2 × 2 × (22 − 2) − 2 3 := ((3 + 3)3 + 3)/3 Ï 83 := 1 + 1 + (11 − 1 − 1)1+1 := 3 + 3 × 33 − 3/3 := 3 × 3 − 3 4 := 4 + (44 + 44 )/4 + 4 := 4 + (44 + 4)/4 + 4 := 4 + (4 − 4 + 44)/4 := 5 × (5 + 5 + 5) − (5 + 5)/5 := 5 × 5 + 55 − (5 + 5)/5 := 5 + 55 + 5 × 5 − (5 + 5)/5 := 6 + 66 + 6/6 := 6 + 66 + 6 := 6 + 66/6 + 66 := 7 + 77 − 77/7 := 7/7 + 77 := 7 + 77 − 7/7 := 8 + 8/8 + 8 × 8 := 88 + (8 − 88)/8 := 8 + 8 × 8 + 88/8 := 9/9 + 9 × 9 − 9 := 9 × 9 − (9 + 9 + 9)/9 := 9 × 9 + (9 + 9)/9 Ï 74 := (1 + 1) × 111/(1 + 1 + 1) := 2 + 2 × (2 + 2 + 2) 2 Ï 79 := (11 − 1 − 1)1+1 − 1 − 1 := (2/2 + 2) 2+2 −2 Ï 84 := 1 + 1 + 1 + (11 − 1 − 1)1+1 := 2 × (2 × 22 − 2) 3 := 3 + ((3 + 3) − 3)/3 := 3 × 3 + 3/3 − 3 := 3 + 3 × 33 := (44 + 44 − 4)/4 := 4 + (44 + 44 )/4 := 4 + 4 × (4 × 4 + 4) := 5 × (5 + 5 + 5) − 5/5 := 5 × 5 + 55 − 5/5 := 5 + (55 − 5/5) + 5 × 5 := 6 + 66 + (6 + 6)/6 := 6 + 6 + 66 + 6/6 := 6 + 66 + 6 + 6 := 77 − (7 + 7 + 7)/7 := 77 + (7 + 7)/7 := 7 + 77 := 8 × 8 + 8 + (8 + 8)/8 := 88 − 8 − 8/8 := 88 − 8 × 8/(8 + 8) := 9 × 9 − 9 + (9 + 9)/9 := 9 × 9 − (9 + 9)/9 := 9 × 9 + (9 + 9 + 9)/9 3 Ï 75 := 1 + (1 + 1) × 111/(1 + 1 + 1) Ï 80 := (11 − 1 − 1)1+1 − 1 Ï 85 := 111 − (1 + 1) × (1 + 1 + 11) := 2 × 2 × (22 − 2) := 2 + 2 + (2/2 + 2)2+2 := 3 + 3 × (33 − 3) := 3 × 33 − 3/3 := 3 + 3 × 33 + 3/3 := (44 + 44 )/4 := 4 × (4 × 4 + 4) := 4 + (4 − 4/4)4 := 5 × (5 + 5 + 5) := 5 × 5 + 55 := 5 + 5 × 5 + 55 := 666/6 − 6 × 6 := 6 + 6 + 66 + (6 + 6)/6 := 6 + 6 + 6 + 66 + 6/6 := 77 − (7 + 7)/7 := 77 + (7 + 7 + 7)/7 := 7 + 77 + 7/7 := 8 × 8 + 88/8 := 88 − 8 := 8 + 88 − 88/8 := 9 × 9 + (9 + 9 + 9)/9 − 9 := 9 × 9 − 9/9 := 9 × 9 + (9 × 9 − 9)/(9 + 9) := 22/2 + 2 2+2+2 Ï 76 := (1 + 1) × (1 + 111/(1 + 1 + 1)) 2 := 2 × ((2 + 2 + 2) + 2) 3 := 3 + ((3 + 3) + 3)/3 Ï 81 := (11 − 1 − 1)1+1 Ï 86 := (1 + 1) × ((1 + 1) × (11 + 11) − 1) := (2/2 + 2)2+2 := 2 × 2 × 22 − 2 := 3 × 33 := 3 + 3 + 3 × 33 − 3/3 4 := 44 + 4 × (4 + 4) := (4 − 4/4) := 4 + (4 − 4/4)4 + 4/4 := 5/5 + 5 × (5 + 5 + 5) := 5 × 5 + 55 + 5/5 := 555/5 − 5 × 5 := 6 + 6 + ((6 + 6)/6)6 := 6 + 666/6 − 6 × 6 := 6 + 6 + 6 + 66 + (6 + 6)/6 := 77 − 7/7 := 77 − 7 + 77/7 := 7 + (7 + 7)/7 + 77 := 8 × 8 + (88 + 8)/8 := 8/8 + 88 − 8 := 88 − (8 + 8)/8 := 9 × 9 + (9 − 99)/(9 + 9) := 9 × 9 := 9 × 9 + (9 × 9 + 9)/(9 + 9) Ï 77 := 11 × (1 + (1 + 1) × (1 + 1 + 1)) := 2 × 2 × 22 − 22/2 3 Ï 82 := 1 + (11 − 1 − 1)1+1 Ï 87 := 111 − (1 + 1) × (1 + 11) := 2 + 2 × 2 × (22 − 2) := 2 × 2 × 22 − 2/2 3 := 3 + 3 × 33 + 3 := 3 × 3 − 3/3 − 3 := 3/3 + 3 × 3 := (4 − 4/4)4 − 4 := 4/4 + (4 − 4/4)4 := 44 + 44 − 4/4 := 55 + (55 + 55)/5 := 5 × 5 + 55 + (5 + 5)/5 := 55 + ((5 + 5)/5)5 := 66 + 66/6 := 6 + 6 + 6 + ((6 + 6)/6)6 := 6 + 666/6 − 6 × 6 + 6 := 77 := 7 + 77 − (7 + 7)/7 := 77 + (77 − 7)/7 := 88 − 88/8 := 88 − 8 + (8 + 8)/8 := 88 − 8/8 := 9 × 9 + (9 − 9 × 9)/(9 + 9) := 9/9 + 9 × 9 := 99 − (99 + 9)/9 15 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 93 := ((1 + 1)11−1 − 1)/11 Ï 88 := 11 × (1 + 1)1+1+1 Ï 98 := 111 − 11 − 1 − 1 := 2 + 2 × 2 × (22 + 2) := 2/2 + 2 × (2 × 22 + 2) := 2 × 2 × 22 3 := 3 × 33 − 33/3 := 3 × 33 − 3/3 := 3 + 3 × (3 + 3) := 44 + 44 := 4 + (444 − 4)/4 − 4 × 4 4 := ((4 + 4) − 4)/44 5 := 5 × 5 × 5 − ((5 + 5)/5)5 := 5 × (5 × 5 − 5) − (5 + 5)/5 := 66 + (66 + 66)/6 := 666/6 − 6 − 6 − 6 := (666 − 6)/6 − 6 − 6 := 77 + 77/7 := 7 + 77 + 7 + (7 + 7)/7 := 7 × (7 + 7) := 88 := 8 + 88 + 8 − 88/8 := 8 + 88 + (8 + 8)/8 := 99 − 99/9 := 9 × 9 + (99 + 9)/9 := 99 − 9/9 := 5 × 5 + (5 /5 + 5)/(5 + 5) Ï 89 := 111 − 11 − 11 Ï 94 := 1 + ((1 + 1)11−1 − 1)/11 Ï 99 := 11 × (11 − 1 − 1) := 2 + 2 × (2 × 22 + 2) := (22/2)2 − 22 := 3 + 3 × (33 + 3) + 3/3 := 3 × 33 := 4 + 4 + (4 − 4/4) := (444 − 4)/4 − 4 × 4 := 4 − 4 × 4 + 444/4 := 5 × (5 × 5 − 5) − 55/5 := 5 × (5 × 5 − 5) − 5 − 5/5 := 5 × (5 × 5 − 5) − 5/5 := 6 + 66 + 6 + 66/6 := 6 × 6 + ((6 + 6)/6)6 − 6 := 666/6 − 6 − 6 := 77 + (77 + 7)/7 := 7 + 77 + (77 − 7)/7 := 7/7 + 7 × (7 + 7) := 8/8 + 88 := 8 + 88 − (8 + 8)/8 := 88 + 88/8 := 9 + 9 × 9 − 9/9 := 99 + (9 − 99)/(9 + 9) := 99 := 2/2 + 2 × 2 × 22 := 3 × (33 + 3) − 3/3 4 Ï 90 := (11 − 1) × (11 − 1 − 1) Ï 100 := (11 − 1)1+1 Ï 95 := 111 − (1 + 1)1+1+1+1 := (2 × (2 + 2) + 2)2 := 2 + 2 × 2 × 22 := 222/2 − 22+2 := 3 × (33 + 3) := 3 × 33 − 3 − 3/3 := 3/3 + 3 × 33 := 44 + ((4 + 4)/4 + 44) := 444/4 − 4 × 4 := 4 + 4 × (4 × 4 + 4 + 4) := 5 + (5 × 5 + 55 + 5) := 5 × (5 × 5 − 5) − 5 := 5 × (5 × 5 − 5) := 6 + ((66 + 6 + 6) + 6) := 6 × 6 + 66 − 6 − 6/6 := 6 × 6 + ((6 + 6)/6)6 := 7 + (77 − 7/7 + 7) := 7 + 77 + 77/7 := (7 + 7)/7 + 7 × (7 + 7) := 88 + (8 + 8)/8 := 8 + 88 − 8/8 := 88 + (88 + 8)/8 := 9 + 9 × 9 := 99 + (9 − 9 × 9)/(9 + 9) := 9/9 + 99 Ï 91 := 1 + (11 − 1) × (11 − 1 − 1) := 2 + 2 × 2 × 22 + 2/2 3 3 Ï 101 := 1 + (11 − 1)1+1 Ï 96 := (1 + 11) × (1 + 1)1+1+1 := 2222/22 := 2 × 2 × (22 + 2) := 3 × 33 − 3 := 3 + 3 × 33 − 3/3 := 4 + 44 + 44 − 4/4 := 4 × (4 × 4 + 4 + 4) := 4444/44 := 5 − 5 × 5 + 555/5 := 5/5 + 5 × (5 × 5 − 5) − 5 := 5/5 + 5 × (5 × 5 − 5) := 6 × 6 + 66 − 66/6 := 6 × 6 + 66 − 6 := 6 × 6 + 66 − 6/6 := 7 + 77 + 7 := 7 × (7 + 7) − (7 + 7)/7 := 7777/77 := 88 + (88/8 − 8) := 8 + 88 := 8888/88 := 9 + 9 × 9 + 9/9 := 99 − (9 + 9 + 9)/9 := 99 + (9 + 9)/9 := 3 + (3/3 + 3) Ï 92 := 11 + (11 − 1 − 1)1+1 := 2 × (2 × 22 + 2) 3 := 3 × 3 + 33/3 Ï 102 := 1 + 1 + (11 − 1)1+1 Ï 97 := 111 − 11 − 1 − 1 − 1 := 2/2 + 2 × 2 × (22 + 2) := 2 + (2 × (2 + 2) + 2)2 := 3/3 + 3 × 33 − 3 := 3 + 3 × 33 4 := 4 + 44 + 44 := 4 × 4 + (4 − 4/4) 5 := (444 − 4)/4 − 4 − 4 5 := 5 + 5 + 55 + ((5 + 5)/5) := (5 + 5)/5 + 5 × (5 × 5 − 5) := 6 × 6 + 66 + (6 − 66)/6 := 6 × 6 + 66 − 6 + 6/6 := 6 × 6 + 66 := 7 + 7 + 77 + 7/7 := 7 × (7 + 7) − 7/7 := 7 + 77 + 7 + 77/7 := 88 + 8 × 8/(8 + 8) := 8 + 88 + 8/8 := (888 − 8)/8 − 8 := 9 × 9 + 99/9 := 99 − (9 + 9)/9 := 999/9 − 9 := 5 + 55 + ((5 + 5)/5) 16 Inder J. Taneja Ï 103 := 1 + 1 + 1 + (11 − 1)1+1 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 113 := 1 + 1 + 111 Ï 108 := 111 − 1 − 1 − 1 := 2 + 2222/22 := (222 − 2)/2 − 2 := 2 + 222/2 := 3 + 3 × 33 + 3/3 := 3 × (33 + 3) := (333 + 3 + 3)/3 := 444/4 − 4 − 4 := 44 + 4 × 4 × 4 := (444 + 4 + 4)/4 := 5 + 5 × (5 × 5 − 5) − (5 + 5)/5 := 55 + 55 − (5 + 5)/5 := (555 + 5 + 5)/5 := 6 × 6 + 66 + 6/6 := 6 × (6 + 6 + 6) := (666 + 6 + 6)/6 := (777 − 7)/7 − 7 := 7 + 7777/77 := (777 + 7 + 7)/7 := 888/8 − 8 := 8 + 88 + (88 + 8)/8 := (888 + 8 + 8)/8 := (999 + 9)/9 − 9 := 9 + 99 := (999 + 9 + 9)/9 Ï 104 := 1 + 1 + 1 + 1 + (11 − 1)1+1 Ï 114 := 1 + 1 + 1 + 111 Ï 109 := 111 − 1 − 1 := 2 × 2 × (22 + 2 + 2) := 222/2 − 2 := 3 + 3 + 3 × 33 − 3/3 := 3/3 + 3 × (33 + 3) := 2 + (222 + 2)/2 := 3 + 333/3 4 := 44 + (4 + 4)/4 := 4 + (444 − 4)/4 := (5 − 5)/(5 × 5 + 5) := 55 + 55 − 5/5 := 5 × 5 × 5 − 55/5 := (666 − 6)/6 − 6 := 6/6 + 6 × (6 + 6 + 6) := 6 + 6 × (6 + 6 + 6) := 777/7 − 7 := 77/7 + 7 × (7 + 7) := ((7 + 7)/7)7 − 7 − 7 := 8 + (88 + 8) := (888 − 8 − 8)/8 := (888 + 88)/8 − 8 := 99 + (9 × 9 + 9)/(9 + 9) := 9 + 99 + 9/9 := (999 + 9 + 9 + 9)/9 := 4 × 4 + 44 + 44 5 Ï 105 := 111 − (1 + 1) × (1 + 1 + 1) Ï 115 := 1 + 1 + 1 + 1 + 111 Ï 110 := 111 − 1 := 2 + 2 + 222/2 := 222/2 − 2 − 2 − 2 := (222 − 2)/2 := 3 + 3 + 3 × 33 := (333 − 3)/3 := 3 + (333 + 3)/3 := 4 + 4444/44 := (444 − 4)/4 := 4 + 444/4 := 5 + 5 × (5 × 5 − 5) := 55 + 55 := 5 + 55 + 55 := 666/6 − 6 := (666 − 6)/6 := 6 + 6 × (6 + 6 + 6) + 6/6 := 7 + 7 × (7 + 7) := (777 − 7)/7 := 77 + 7 × 7 − 77/7 := 8 + 8 + 88 + 8/8 := (888 − 8)/8 := 8 + 88 + 8 + 88/8 := 9 + 99 − (9 + 9 + 9)/9 := 99 + 99/9 := 9 + 9 + 99 − (9 + 9)/9 Ï 106 := 111 − 1 − 1 − 1 − 1 − 1 Ï 116 := 1 + 1 + 1 + 1 + 1 + 111 Ï 111 := 111 := 222/2 := 2 + 2 + (222 + 2)/2 := 3 + 3 + 3 × 33 + 3/3 := 333/3 := 3 + 3 + (333 − 3)/3 := (444 − 4)/4 − 4 := 444/4 := 4 + 4 × (44 − 4 × 4) := 555/5 − 5 := 555/5 := 5 + 555/5 := 2 + 2 × 2 × (22 + 2 + 2) := (666 + 6)/6 − 6 := 666/6 := 6 + (666 − 6)/6 := 7 + 7 × (7 + 7) + 7/7 := 777/7 := 7 + 7 × (7 + 7) + 77/7 := 8 + 8 + 88 + (8 + 8)/8 := 888/8 := 8 × (8 + 8) − (88 + 8)/8 := 9 + 99 − (9 + 9)/9 := 999/9 := 9 + 9 + 99 − 9/9 Ï 107 := 111 − 1 − 1 − 1 − 1 Ï 117 := 111 + (1 + 1) × (1 + 1 + 1) Ï 112 := 1 + 111 := 222/2 − 2 − 2 := (222 + 2)/2 := (22/2)2 − 2 − 2 := 3 × (33 + 3) − 3/3 := (333 + 3)/3 := 3 × (33 + 3 + 3) := 444/4 − 4 := (444 + 4)/4 := 4 + ((444 + 4 + 4)/4) := 5 + (555 + 5)/5 := (555 + 5)/5 − 5 := (555 + 5)/5 := 6 × (6 + 6 + 6) − 6/6 := (666 + 6)/6 := 6 + 666/6 := 7 + (7 + 7)/7 + 7 × (7 + 7) := (777 + 7)/7 := 7 + (777 − 7)/7 := 8 + (88/8 + 88) := (888 + 8)/8 := 8 × (8 + 8) − 88/8 := 9 + 99 − 9/9 := (999 + 9)/9 := 9 + (99 + 9) 17 Inder J. Taneja Ï 118 := 111+1 − 1 − 1 − 1 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 128 := (1 + 1)1+(1+1)×(1+1+1) Ï 123 := 1 + 1 + 11 × 11 := 22 + 2 × 2 × (22 + 2) := 2 + (22/2)2 := 2 × 22+2+2 := 3 + 3 + (333 + 3)/3 := 33 − 3 + 3 × 33 := 3 + (3 − 3/3 + 3)3 := 4 + 4 + (444 − 4)/4 := 4 + 4 + 4 + 444/4 := 4 × 4 × (4 + 4) := 5 + (555 + 5 + 5)/5 := 5 × 5 × 5 − (5 + 5)/5 := 5 + 5 × 5 × 5 − (5 + 5)/5 := 6 + (666 + 6)/6 := 6 + 6 + 666/6 := ((6 + 6)/6)6+6/6 := 7 + 777/7 := (777 + 77 + 7)/7 := 8 + (888 − 8)/8 := ((7 + 7)/7)7 := (888 + 88 + 8)/8 := 9 + 99 + 9 + 9/9 := 8 × (8 + 8) := (999 + 99 + 9)/9 := 99 + 9 + 9 + 99/9 Ï 119 := 111+1 − 1 − 1 2 := (22/2) − 2 Ï 124 := 1 + 1 + 1 + 11 × 11 Ï 129 := 11 × (1 + 11) − 1 − 1 − 1 := 2 × (22+2+2 − 2) := (22×(2+2) + 2)/2 := 3 × 3 + (333 − 3)/3 := 3 + (33/3) := 4 + 4 + 444/4 := 4 × 4 × (4 + 4) − 4 := 4/4 + 4 × 4 × (4 + 4) := 5 × 5 × 5 − 5 − 5/5 := 5 × 5 × 5 − 5/5 := 5 + (5 × 5 × 5 − 5/5) := 6 + (666 + 6 + 6)/6 := 6 + 6 + (666 + 6)/6 := 6 + 6 + 6 + 666/6 := 77 + 7 × 7 − 7 := 7 + 7 + (777 − 7)/7 := 8 + 888/8 := 7/7 + ((7 + 7)/7)7 := 8 × (8 + 8) − 8 × 8/(8 + 8) := 9 + (99/9 + 99) := 8/8 + 8 × (8 + 8) := 9 + 9 + 9 + 99 − (9 + 9)/9 := 9 + 9 + 999/9 Ï 120 := 111+1 − 1 := (2 + 2 + 2) × (22 − 2) := 3 + 3 × (33 + 3 + 3) := (4 + 4) × (44/4 + 4) := 5 × 5 × 5 − 5 := 6 + 6 + 6 × (6 + 6 + 6) := 7 + (777 + 7 + 7)/7 := 8 × (8 + 8) − 8 := 9 + 999/9 Ï 121 := 11 × 11 3−3/3 := 3 + (3 × 33 + 33 ) Ï 125 := 1 + 1 + 1 + 1 + 11 × 11 2 := 2 + 2 × 22+2+2 := 2 + (22/2) + 2 := (3 − 3/3 + 3) Ï 130 := (11 − 1) × (1 + 1 + 11) 3 := 3 + 3 × 33 + 33 + 3/3 4 := 44 + (4 − 4/4) := (44 + 4)/((4 + 4)/4) := 5 × 5 × 5 := 5 + 5 × 5 × 5 := 66 + 66 − 6 − 6/6 := 66 + ((6 + 6)/6)6 := 7 + 7 + 777/7 := (7 + 7)/7 + ((7 + 7)/7)7 := 8 + 8 × (8 + 8) − 88/8 := 9 + 99 + 9 + 9 − 9/9 Ï 126 := 1 + 1 + 1 + 1 + 1 + 11 × 11 := (22/2)2 := 2 × 22+2+2 − 2 := (33/3)3−3/3 := 3 × (3 × 3 + 33) := 8 × (8 + 8) + (8 + 8)/8 := 9 + 9 + (999 + 9)/9 Ï 131 := 11 × (1 + 11) − 1 := 2 + (22×(2+2) + 2)/2 := 3 + 3 + (3 + 3 − 3/3)3 := (44/4)(4+4)/4 := (4 − 4) × 4/(4 + 4) := 5 + 5 + 555/5 := 4 + 444/4 + 4 × 4 := 5/5 + 5 × 5 × 5 := 66 × 66/(6 × 6) := 5 + 5 × 5 × 5 + 5/5 := 66 + 66 − 6 := ((7 + 7)/7)7 − 7 := 66 + 66 − 6/6 := 77 + 7 × 7 := 7 + 7 + 7 + (777 − 7)/7 := 8 × (8 + 8) − 8 + 8/8 := 8 × (8 + 8) − (8 + 8)/8 := 8 × (8 + 8) + 88/8 − 8 := 9 + (999 + 9)/9 := 9 + (99 + 9 + 9) := 9 + (999 + 99)/9 Ï 122 := 111 + 11 4 Ï 127 := 111 + (1 + 1)1+1+1+1 2×(2+2) − 2)/2 Ï 132 := 11 × (1 + 11) := (222 + 22)/2 := (2 := (333 + 33)/3 3 := 3 + (3 × 33 + 3/3) := 33 + 3 × 33 := (444 + 44)/4 := 4 × 4 + 444/4 := 4 + 4 × 4 × (4 + 4) := (555 + 55)/5 := 5 × 5 × 5 + (5 + 5)/5 := 5 + 5 × 5 × 5 + (5 + 5)/5 := (666 + 66)/6 := 22 × (2 + 2 + 2) := 6 + 66 × 66/(6 × 6) := 66 + 66 := (777 + 77)/7 := 7/7 + (77 + 7 × 7) := 7 + 7 + 7 + 777/7 := (888 + 88)/8 := 8 × (8 + 8) − 8/8 := 88 + 88 × 8/(8 + 8) := (999 + 99)/9 := 99 + 9 + 9 + 9 + 9/9 := 99 × (99 + 9)/(9 × 9) 18 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 133 := 1 + 11 × (1 + 11) Ï 138 := 111 + (1 + 1 + 1)1+1+1 := (2/2 + 2) × (2 × 22 + 2) := 22 + 222/2 := 33 + 3 × 33 + 3/3 3 Ï 143 := 11 × (1 + 1 + 11) := 22 + (22/2)2 := 33 + (333 − 3)/3 := 3 + 333/3 := 4 + 4 × 4 × (4 + 4) + 4/4 := 4 + (4 + 4) × 4/(4 + 4) + 4 := 4 × (4 + 4) + 444/4 4 := 5 + 5 + 5 × 5 × 5 − (5 + 5)/5 := (5 × 5 × 55 + 5)/(5 + 5) := 5 + (5 × 5 × 55 + 5)/(5 + 5) := 66 + 66 + 6/6 := 6 + 66 + 66 := (6 + 6) × (6 + 6) − 6/6 := 7 + 77 + 7 × 7 := 77 + 7 × 7 + (77 + 7)/7 := 77 + 77 − 77/7 := (8 − 8/8) × (88/8 + 8) := 8 + 8 × (8 + 8) + (8 + 8)/8 := 8 + 8 + 8 × (8 + 8) − 8/8 := 9 × (9 + 9) − 9 − 9 − 99/9 := 9 + 9 + 9 + 999/9 := 9 × (9 + 9) − 9 − 9 − 9/9 Ï 134 := 1 + 1 + 11 × (1 + 11) Ï 139 := (11 − 1) × (1 + 1 + 1 + 11) − 1 Ï 144 := (1 + 11)1+1 := 2 + 22 × (2 + 2 + 2) := (22×(2+2) + 22)/2 := (2 × (2 + 2 + 2))2 := 3 × 3 + (3 − 3/3 + 3)3 := 33 + (333 + 3)/3 := (3 + 3) × (33 − 3) := 4 + (44 + 4) × 4/(4 + 4) := 44/4 + 4 × 4 × (4 + 4) := 4 × (4 × (4 + 4) + 4) := 5 + 5 + 5 × 5 × 5 − 5/5 := 5 × (5 × 5 + 5) − 55/5 := (5/5 + 5) × (5 × 5 − 5/5) := 6 + ((6 + 6)/6) := 6 + 66 + 66 + 6/6 := (6 + 6) × (6 + 6) := 7 + 77 + 7 × 7 + 7/7 := 77/7 + ((7 + 7)/7)7 := (7/7 + 7) × (77/7 + 7) := 8 + 8 × (8 + 8) − (8 + 8)/8 := 8 × (8 + 8) + 88/8 := 8 + 8 × (8 + 8) + 8 := 9 + 9 + 9 + 9 + 99 − 9/9 := 9 + 9 + 9 + (999 + 9)/9 := (9 + 9) × (9 − 9/9) 6/6+6 Ï 135 := 1 + 1 + 1 + 11 × (1 + 11) Ï 140 := (11 − 1) × (1 + 1 + 1 + 11) Ï 145 := 1 + (1 + 11)1+1 := 2 + 22 + 222/2 := 2 × (2 × (22 + 2) + 22) := 2 + (22/2)2 + 22 := 3 + 33 + 33 × 3 := 3 + (333 − 3)/3 + 33 := 3/3 + (3 + 3) × (33 − 3) := (4 − 4/4) × (44 + 4/4) := 4 × (4 × (4 + 4) + 4) − 4 := 44 − 444/4 := 5 + 5 + 5 × 5 × 5 := 5 + 5 + 5 + 5 × 5 × 5 := 5 × (5 × 5 + 5) − 5 := 6 + 6 + 6 + 6 + 666/6 := 6 + ((6 + 6)/6)6/6+6 + 6 := 6/6 + (6 + 6) × (6 + 6) := 7 + ((7 + 7)/7) := 7 × (7 + 7 + 7) − 7 := 7 × (7 + 7 + 7) − (7 + 7)/7 := 8 + 8 × (8 + 8) − 8/8 := 8 × (8 + 8) + (88 + 8)/8 := 8 + 8 + 8 × (8 + 8) + 8/8 := 9 + 9 + 9 + 9 + 99 := 9 + 9 + (999 + 99)/9 := 9/9 + (9 + 9) × (9 − 9/9) 7 Ï 136 := 1 + 1 + 1 + 1 + 11 × (1 + 11) Ï 141 := (1 + 11)1+1 − 1 − 1 − 1 2 Ï 146 := 1 + 1 + (1 + 11)1+1 := 2 + 2 + 22 × (2 + 2 + 2) + 2 := 22 + (22/2) − 2 := 2 + (2 × (2 + 2 + 2))2 := (3/3 + 3) × (3/3 + 33) := 33 + 3 × (33 + 3) := 3 + (333 − 3)/3 + 33 := 4 + 4 + 4 × 4 × (4 + 4) := 44 − 4 − 444/4 := 44 + (4 − 444)/4 := 5 × 5 + 555/5 := 5 + 5 × 5 + 555/5 := 5/5 + 5 × (5 × 5 + 5) − 5 := 6 × 6 + 666/6 − 6 := 6 × 6 + (666 − 6)/6 := 7 + ((7 + 7)/7) + 7/7 := 7/7 + 7 × (7 + 7 + 7) − 7 := 7 × (7 + 7 + 7) − 7/7 := 8 + 8 × (8 + 8) := 8 × 8 + 88 − 88/8 := 8 + 8 + 8 × (8 + 8) + (8 + 8)/8 := (9 − 9/9) × (9 + 9 − 9/9) := 9 + 99 × (99 + 9)/(9 × 9) := (9 + 9)/9 + (9 + 9) × (9 − 9/9) 6 := 6 + ((6 + 6)/6) + 66 7 Ï 137 := 111 + (1 + 1) × (1 + 1 + 11) := 22+2 + (22/2)2 := 33 + (333 − 3)/3 Ï 142 := (1 + 11)1+1 − 1 − 1 Ï 147 := 1 + 1 + 1 + (1 + 11)1+1 := (2 × (2 + 2 + 2))2 − 2 := 3 + (333 + 3)/3 + 3 3 4 := (22/2 + 2)2 − 22 := 3 + (3 + 3) × (33 − 3) := 4 + 4 × 4 × (4 + 4) + 4/4 + 4 := 4 × 4 + (4 − 4) × 4/(4 + 4) := 4 + 444/4 + 4 × (4 + 4) := 5 × 5 + (555 + 5)/5 := 5 + 5 × 5 + (555 + 5)/5 := 5 × 5 + (555 + 55)/5 := 6 + 66 + 66 − 6/6 := (6 + 6) × (6 + 6) − (6 + 6)/6 := 6 × 6 + 666/6 7 := 77 + 77/7 + 7 × 7 := 7 + 7 + ((7 + 7)/7) := 7 × (7 + 7 + 7) := 8 + 8 × (8 + 8) + 8/8 := 8 + 8 + 8 × (8 + 8) − (8 + 8)/8 := 8 + 8 × (8 + 8) + 88/8 := 99 + 9 + 9 + 9 + 99/9 := 9 × (9 + 9) − 9 − 99/9 := 9 + 9 + 9 + 9 + 999/9 19 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 148 := 1 + 1 + 1 + 1 + (1 + 11)1+1 := 2 + 2 + (2 × (2 + 2 + 2))2 := (33 × 33 − 3)/(3 + 3) Ï 153 := 11 × (1 + 1 + 1 + 11) − 1 := 2 × ((2/2 + 2)2+2 − 2) := 2 × 22 + 222/2 − 2 3 Ï 158 := (1 + 1 + 11)1+1 − 11 3 := 33 + (3 − 3/3 + 3)3 := 3 × (3 − 3 + 3 ) 4 := 4 + 4 × (4 × (4 + 4) + 4) := 4 + 4 + 4 − 444/4 := 4 × (44 − 4) − (4 + 4)/4 := 5 × (5 × 5 + 5) − (5 + 5)/5 := 5 + 5 × (5 × 5 + 5) − (5 + 5)/5 := 5 × ((5 + 5)/5)5 − (5 + 5)/5 := 6 × 6 + (666 + 6)/6 := 6 + 666/6 + 6 × 6 := 6 + 6 × 6 × 6 − ((6 + 6)/6)6 := 7/7 + 7 × (7 + 7 + 7) := 77 + 77 − 7/7 := 77/7 + 7 × (7 + 7 + 7) := 888/(8 − (8 + 8)/8) := 8/8 + 8 × 8 + 88 := 8 + 88 − (8 + 8)/8 + 8 × 8 := 99 + (9 × 99 − 9)/(9 + 9) := 9 × (9 + 9) − 9 := 9 × (9 + 9) + (9 − 9 × 9)/(9 + 9) Ï 149 := 1 + 1 + 1 + 1 + 1 + (1 + 11)1+1 2 := 2 + (22/2 + 2) − 22 Ï 159 := 1 + (1 + 1 + 11)1+1 − 11 Ï 154 := 11 × (1 + 1 + 1 + 11) := 22 + 22 × (2 + 2 + 2) := 222/2 + 2 × (22 + 2) := (33 × 3 + 3)/(3 + 3) := 33/3 × (33/3 + 3) := (3 + 3) × 33 − 3 := 4 + 44 − 444/4 := 44 + (444 − 4)/4 := 4 × (44 − 4) − 4/4 := 5 × (5 × 5 + 5) − 5/5 := 5 + 5 × (5 × 5 + 5) − 5/5 := (55 + 55 )/(5 × 5 − 5) := 6 + (6 + 6) × (6 + 6) − 6/6 := 6 + (666 + 6)/6 + 6 × 6 := 6 × 6 + 6 + 6 + 666/6 := 7 + ((7 + 7)/7) + 7 + 7 := 77 + 77 := 7 × 7 + (777 − 7)/7 := 8 + 8 × 8 + 88 − 88/8 := 8 × 8 + (8 + 8)/8 + 88 := 8 + 8 × 8 + 88 − 8/8 := 99 + (9 × 99 + 9)/(9 + 9) := 9/9 + 9 × (9 + 9) − 9 := 9 × (9 + 9) − (9 + 9 + 9)/9 3 7 Ï 150 := (11 − 1) × (1 + 1 + 1 + 1 + 11) := 22 + 2 × 22+2+2 3 Ï 155 := 11 + (1 + 11)1+1 Ï 160 := (1 + 1) × ((11 − 1 − 1)1+1 − 1) := 2 × 22 + 222/2 := 2 × 2 × 2 × (22 − 2) 3 3 := 3/3 + (3 + 3) × 33 − 3 := 3 + (3 + 3) × (3 − 3) + 3 := 3 + (3 − 3/3 + 3) + 3 := (44 + 44 )/((4 + 4)/4) := 44 + 444/4 := 4 × (44 − 4) := 5 × (5 × 5 + 5) := 5 + 5 × (5 × 5 + 5) := 5 × ((5 + 5)/5)5 := 6 + (6 + 6) × (6 + 6) := 66/6 + (6 + 6) × (6 + 6) := 6 + (666 + 6)/6 + 6 × 6 + 6 := 7 + 77 + 77 − 77/7 := 7/7 + 77 + 77 := 7 × 7 + 777/7 := 8 × 8 + 88 − (8 + 8)/8 := 8 + 8 + 8 × (8 + 8) + 88/8 := 8 + 8 × 8 + 88 := 9 × (9 + 9) − (99 + 9)/9 := (9 + 9)/9 + 9 × (9 + 9) − 9 := 9 × (9 + 9) − (9 + 9)/9 Ï 151 := 1 + (11 − 1) × (1 + 1 + 1 + 1 + 11) := 22 + (22×(2+2) + 2)/2 Ï 156 := (1 + 11) × (1 + 1 + 11) := 2 × (2 × 2 × (22 − 2) − 2) 3 Ï 161 := (1 + 1) × (11 − 1 − 1)1+1 − 1 := ((22+2 + 2)2 − 2)/2 := (3 + 3) × 33 − 33/3 := (3 + 3) × (3 − 3/3) := (3 + 3) × 33 − 3/3 := 44 + 444/4 − 4 := 4 × (44 − 4) − 4 := 4/4 + 4 × (44 − 4) 5 := 5/5 + 5 × (5 × 5 + 5) := (5 − 5)/(5 × 5 − 5) := 5 + (55 − 5)/(5 × 5 − 5) := 6 + (6 + 6) × (6 + 6) + 6/6 := 6 + (6 + 6) × (6 + 6) + 6 := 6 + (6 + 6) × (6 + 6) + 66/6 := 7 + (7/7 + 7) × (77/7 + 7) := 77 + 77 + (7 + 7)/7 := 7 + 77 + 77 := 8 × 8 + (88 − 8/8) := 8 + 888/(8 − (8 + 8)/8) := 8 + 8 × 8 + 88 + 8/8 := 9 × (9 + 9) − 99/9 := 9 × (9 + 9) + (9 + 9 + 9)/9 − 9 := 9 × (9 + 9) − 9/9 Ï 157 := 1 + (1 + 11) × (1 + 1 + 11) Ï 162 := (1 + 1) × (11 − 1 − 1)1+1 := 2 × 2 × ((2 + 2 + 2)2 + 2) := 2 + 222/2 + 2 × 22 := 2 × (2/2 + 2)2+2 := 33 + (3 − 3/3 + 3)3 := 3 + 33/3 × (33/3 + 3) := (3 + 3) × 33 := 4 × (44 − 4) − 4 − 4 := 4/4 + 4 × (44 − 4) − 4 Ï 152 := 11 × (1 + 1 + 1 + 11) − 1 − 1 := (4 + 4)/4 + 4 × (44 − 4) 5 := 5 × 5 × 5 + ((5 + 5)/5) := 5 + 5 × 5 × 5 + ((5 + 5)/5)5 := 6 × 6 × 6 − ((6 + 6)/6)6 := 6 + 6 + (6 + 6) × (6 + 6) + 6/6 := 6 + (6 + 6) × (6 + 6) + 6 + 6 := 77 + 77 − (7 + 7)/7 := 77 + (7 + 7 + 7)/7 + 77 := 7 + 77 + 77 + 7/7 := 8 × 8 + 88 := 88 + 88 − 8 − 88/8 := 8 + 88 + 8 × 8 + (8 + 8)/8 := 9 × (9 + 9) − 9/9 − 9 := 9 × (9 + 9) + (9 − 99)/(9 + 9) := 9 × (9 + 9) := (5 + 5)/5 + 5 × (5 × 5 + 5) 20 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 163 := 1 + (1 + 1) × (11 − 1 − 1)1+1 := ((22+2 + 2)2 + 2)/2 Ï 168 := (1 + 1 + 11)1+1 − 1 Ï 173 := 1 + 1 + 1 + 1 + (1 + 1 + 11)1+1 := 2 × 2 × (2 × 22 − 2) 3 := 2 + (22/2 + 2)2 + 2 := 3/3 + (3 + 3) × 33 := 3 + (3 + 3) × 3 + 3 := (3 + 3) × 33 + 33/3 := 4 + 4 × (44 − 4) − 4/4 := 4 × 44 − 4 − 4 := 4 × 44 − 4 + 4/4 := 5 × 55 − (555 + 5)/5 := 55 + (555 + 5 + 5)/5 := 5 × (5 × 5 + 5 + 5) − (5 + 5)/5 := 6 × (6 × 6 − 6) − 66/6 − 6 := 6 × 6 + (66 + 66) := 6 × (6 × 6 − 6) − 6/6 − 6 := 7 + 77 + 77 + (7 + 7)/7 := 7 + ((77 + 77) + 7) := 77 + 7 × (7 + 7) − (7 + 7)/7 := 8 × 8 + 88 + 88/8 := 88 + (88 − 8) := 8 + 88 + 88 − 88/8 := 9/9 + 9 × (9 + 9) := 9 + (9 × (9 + 9) − ((9 + 9 + 9)/9)) := 99/9 + 9 × (9 + 9) Ï 164 := (1 + 1) × (1 + (11 − 1 − 1)1+1 ) := 2 + 2 × (2/2 + 2)2+2 3 Ï 169 := (1 + 1 + 11)1+1 Ï 174 := (1 + 1) × (111 − (1 + 1) × (1 + 11)) := (22/2 + 2)2 := 2 × 2 × 2 × 22 − 2 3 := 3 + (3 + 3) × 3 − 3/3 := 3 + 3 + (3 + 3) × 3 + 3/3 := 3 + (3 + 3) × 33 + 3 × 3 := 4 + 4 × (44 − 4) := 4 + 4 × 44 − 44/4 := 4 × 44 − (4 + 4)/4 := 5 + 5 × 55 − 555/5 := 5 × (5 × 5 + 5 + 5) − 5/5 := 5 × 55 − 555/5 := (6/6 + 6 + 6) (6+6)/6 := 6 × (6 × 6 − 6) − 6 := 77 + 77 + (77 − 7)/7 := (7 − 7/7 + 7) (7+7)/7 := 77 + 7 × (7 + 7) − 7/7 := 8 × 8 + 88 + (88 + 8)/8 := 8/8 + 88 + 88 − 8 := 8 × 8 + (888 − 8)/8 := (9 + 9)/9 + 9 × (9 + 9) := 9 + 9 × (9 + 9) − (9 + 9)/9 := 9 × (9 + 9) + (99 + 9)/9 6/6+6 := 6 × 6 + ((6 + 6)/6) Ï 165 := 11 × (1 + 1 + 1 + 1 + 11) := 2 × 22 + (22/2)2 Ï 175 := 11 × (1 + 1)1+1+1+1 − 1 Ï 170 := 1 + (1 + 1 + 11)1+1 := 2 + 2 × (2 × (2 × 22 − 2)) := 2 × 2 × 2 × 22 − 2/2 := 3 + (3 × 333 + 3)/(3 + 3) := 333/3 + (3/3 + 3)3 := 4 × 44 − 4 − (4 + 4)/4 := 4 × 44 − 4/4 := 5 + 5 × ((5 + 5)/5) := 5 × (5 × 5 + 5 + 5) − 5 := 5 × (5 × 5 + 5 + 5) := 66 × (6 × 6 − 6)/(6 + 6) := 66 + (666 − 6)/6 − 6 := 6/6 + 6 × (6 × 6 − 6) − 6 := 3 + (3 + 3) × 3 3 := 4 × 44 − 44/4 5 7 := 77 + 7 × (7 + 7) := 77 + 77 + 77/7 := 7 × 7 + ((7 + 7)/7) − 7 := 88 + 88 − 88/8 := 88 + (8 + 8)/8 − 8 + 88 := 8 × 8 + 888/8 := 9 + 9 × (9 + 9) − 9/9 := 9 × (9 + 9) + (99 + 9 + 9)/9 := 9 × (9 + 9) + (9 + 9 + 9)/9 Ï 166 := 1 + 11 × (1 + 1 + 1 + 1 + 11) Ï 171 := 1 + 1 + (1 + 1 + 11)1+1 Ï 176 := 11 × (1 + 1)1+1+1+1 := 2 × ((2/2 + 2)2+2 + 2) := 2 + (22/2 + 2)2 := 2 × 2 × 2 × 22 := 3 + (3 + 3) × 33 + 3/3 := 3 × (33 + 33 + 3) := 3 + (3 + 3) × 33 + 33/3 := 4 × 44 + (4 − 44)/4 := 4 × 44 − 4 − 4/4 := 4 × 44 := 55 + 555/5 := 5 + 55 + 555/5 := 5/5 + 5 × (5 × 5 + 5 + 5) := 6 × 6 + 66 + ((6 + 6)/6)6 := 66 + 666/6 − 6 := 66 + (666 − 6)/6 := 7 + (777 − 7)/7 + 7 × 7 := (7 × 7 × 7 × 7 − 7)/(7 + 7) := 7/7 + 7 × (7 + 7) + 77 := 8 × 8 − 8 + (888 − 8)/8 := (8/8 + 8) × (88/8 + 8) := 88 + 88 := 9 × (9 + 9) + (9 × 9 − 9)/(9 + 9) := 9 + 9 × (9 + 9) := (9 − 9/9) × (99 + 99)/9 Ï 177 := 1 + 11 × (1 + 1)1+1+1+1 Ï 167 := (1 + 1 + 11)1+1 − 1 − 1 Ï 172 := 1 + 1 + 1 + (1 + 1 + 11)1+1 := (22/2 + 2)2 − 2 := 2 × (2 × 2 × 22 − 2) := 2 × 2 × 2 × 22 + 2/2 := (3 × 333 + 3)/(3 + 3) := 3 × 3 + (3 + 3) × 33 + 3/3 := 3 × (33 + 33) − 3 := 4 × 44 − 4 − 4 − 4/4 := 4 × 44 − 4 := 4 × 44 + 4/4 := 55 + (555 + 5)/5 := 5 + 55 + (555 + 5)/5 := 55 + (555 + 55)/5 := 6 × 6 + 66 + 66 − 6/6 := 66 − 6 + (666 + 6)/6 := 66 + 666/6 := 7 + 7 × 7 + 777/7 := (7 × 7 × 7 × 7 + 7)/(7 + 7) := 7 × 7 + ((7 + 7)/7)7 := 8 × 8 − 8 + 888/8 := 88 + 88 − 8 × 8/(8 + 8) := 88 + 88 + 8/8 := 9 × (9 + 9) + (9 × 9 + 9)/(9 + 9) := 9 + 9 × (9 + 9) + 9/9 := 99 + 9 × 9 − (9 + 9 + 9)/9 21 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 178 := (1 + 1) × (111 − 11 − 11) Ï 183 := 1 + (1 + 1 + 11) × (1 + 1 + 1 + 11) := 2 + 2 × 2 × 2 × 22 := 2 × 2 × (2 × 22 + 2) − 2/2 Ï 188 := 1 + 1 + ((1 + 1)11 − 1 − 1)/11 := 2 × (2 × (2 × 22 + 2) + 2) := 3/3 + 3 × (3 + 33) − 3 := (3 + 3) − 33 := (3 + 3)3 − 33 − 3/3 := 4 × 44 + (4 + 4)/4 := 4 + 4 + 4 × 44 − 4/4 := 444 − 44 := 55 + 5 × 5 × 5 − (5 + 5)/5 := (5 − (5 + 5)/5)5 − 55 − 5 := (5 − (5 + 5)/5)5 − 55 := 66 + (666 + 6)/6 3 3 := 6 + 66 + 666/6 := 6 + 6 × (6 × 6 − 6) + (6 + 6)/6 := 7 + (7 × 7 × 7 × 7 − 7)/(7 + 7) := 7 + 77 + 7 × (7 + 7) + 7/7 := 77 + 777/7 := 88 + 88 + 8 + 8/8 := 8 + 8 × 8 + 888/8 := 88 + 88 + (88 + 8)/8 := 99 + 9 × 9 − (9 + 9)/9 := 9 × 9 − 9 + 999/9 := 9 + 99 + 9 × 9 − 9/9 Ï 179 := 11 + (1 + 1 + 11)1+1 − 1 Ï 184 := (1 + 1) × (11 + (11 − 1 − 1)1+1 ) Ï 189 := (11 − 1 − 1) × (11 + 11 − 1) := 2 + (2 × 2 × 2 × 22) + 2/2 := 2 × 2 × (2 × 22 + 2) := ((22 − 2)2 − 22)/2 := 3 × (33 + 33) − 3/3 := 3/3 + (3 + 3)3 − 33 := (3 + 3)3 − 33 := 4 + 4 × 44 − 4/4 := 4 + 4 + 4 × 44 := 4/4 + 444 − 44 := 55 + 5 × 5 × 5 − 5/5 := 5 + 55 + 5 × 5 × 5 − 5/5 := 5 × (55 + 5) − 555/5 := 6 × (6 × 6 − 6) − 6/6 := 6 + 66 + (666 + 6)/6 := 66 + 6 + 6 + 666/6 := 7 + (7 × 7 × 7 × 7 + 7)/(7 + 7) := 7 + 7 × 7 + ((7 + 7)/7) := (7 + 7) × (7 + 7) − 7 := 8 + (8/8 + 8) × (88/8 + 8) := 8 + 88 + 88 := 8 + 8 × (8 + 8 + 8) − 88/8 := 99 + 9 × 9 − 9/9 := 9 × 9 − 9 + (999 + 9)/9 := 9 + 99 + 9 × 9 Ï 180 := 11 + (1 + 1 + 11)1+1 7 Ï 185 := (1 + 1 + 1 + 11)1+1 − 11 Ï 190 := (11 − 1) × ((1 + 1) × (11 − 1) − 1) := 2 × (2 × 2 × 22 + 2) := 2 × 2 × (2 × 22 + 2) + 2/2 := 222 − 2 × 22+2 := 3 × (33 + 33) := 3 + (3 + 3)3 − 33 − 3/3 := 3/3 + (3 + 3)3 − 33 := 4 + 4 × 44 := 4 + 4 + 4 × 44 + 4/4 := 44 − (44 + 4 + 4)/4 := 55 + 5 × 5 × 5 := 5 + 55 + 5 × 5 × 5 := 5 + 5 × 5 × 5 + 55 + 5 := 6 × (6 × 6 − 6) := 6 + 6 × (6 × 6 − 6) − 6/6 := (6 − 6/6) × ((6 + 6)/6 + 6 × 6) := 77 + (777 − 7)/7 − 7 := (7 + 7) × (7 + 7) − 77/7 := 7/7 + (7 + 7) × (7 + 7) − 7 := 88 + 88 + 8 × 8/(8 + 8) := 8 + 88 + 88 + 8/8 := 8 × (8 + 8 + 8) − (8 + 8)/8 := 99 + 9 × 9 := 9 + (9 − 9/9) × (99 + 99)/9 := 9 + 99 + 9 × 9 + 9/9 Ï 181 := 1 + 11 + (1 + 1 + 11)1+1 Ï 186 := ((1 + 1)11 − 1 − 1)/11 Ï 191 := 1 + (11 − 1) × ((1 + 1) × (11 − 1) − 1) := 2/2 + 2 × (2 × 2 × 22 + 2) := 2 + 2 × 2 × (2 × 22 + 2) := 22 + (22/2 + 2)2 := 3/3 + 3 × (33 + 33) := 3 + (3 + 3)3 − 33 := 3 × (3/3 + 3)3 − 3/3 := 4 + 4 × 44 + 4/4 := 4 × 44 + (44 − 4)/4 := 44 − (44 + 4)/4 := 55 + 5 × 5 × 5 + 5/5 := 5 + 5 × 5 × 5 + 55 + 5/5 := 5 × 5 + 55 + 555/5 := 6/6 + 6 × (6 × 6 − 6) := 6 + 6 × (6 × 6 − 6) := 6 × (6 × 6 − 6) + 66/6 := 77 − 7 + 777/7 := 77 + 7 × (7 + 7) + 77/7 := 7 + ((7 + 7)/7)7 + 7 × 7 + 7 := 8 × (8 + 8 + 8) + 88/8 := 8 + 88 + 88 + (8 + 8)/8 := 8 × (8 + 8 + 8) − 8/8 := 9/9 + 99 + 9 × 9 := 99 + 99 − (99 + 9)/9 := 99 + 9 × 9 + 99/9 Ï 182 := (1 + 1 + 11) × (1 + 1 + 1 + 11) := 2 + 2 × (2 × 2 × 22 + 2) Ï 187 := 1 + ((1 + 1)11 − 1 − 1)/11 Ï 192 := 111 + (11 − 1 − 1)1+1 := 2 × 2 × 2 × 22 + 22/2 := 2 × 2 × 2 × (22 + 2) := (3 + 3) − 33 − 3/3 := 33 × (3 + 3) − 33/3 := 3 × (3/3 + 3)3 := 4 + 4 × 44 + (4 + 4)/4 := 4 × 44 + 44/4 := 4 × (44 + 4) := 55 + 5 × 5 × 5 + (5 + 5)/5 := 55/5 × ((55 + 5)/5 + 5) := (5/5 + 5) × ((5 + 5)/5)5 3 := 6 × (6 × 6 − 6) + (6 + 6)/6 := 6 + 6 × (6 × 6 − 6) + 6/6 := 6 + 6 × (6 × 6 − 6) + 6 := 7 + 77 + 7 × (7 + 7) := 77 + (777 − 7)/7 := 7 + (7 + 7) × (7 + 7) − 77/7 := 8 + 8 × 8 + (888 − 8)/8 := 88 + 88 + 88/8 := 8 × (8 + 8 + 8) := 9 + 9 × (9 + 9) + 99/9 := 99 + 99 − 99/9 := 9 × 9 + 999/9 22 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 193 := 1 + 111 + (11 − 1 − 1)1+1 Ï 198 := (1 + 1) × 11 × (11 − 1 − 1) Ï 203 := 1 + (1 + 1) × (1 + (11 − 1)1+1 ) := 2 + (22/2 + 2)2 + 22 := 2 + (22+2 − 2)2 := 2 + ((22 − 2)2 + 2)/2 := 3/3 + 3 × (3/3 + 3)3 := 33 × (3 + 3) := 3 + 3 + 33 × (3 + 3) − 3/3 := 4 × (44 + 4) + 4/4 := 4 + 4 + (4 − 4 + 4)/4 := 44 + (44 − 44 )/4 := 5 + (5 − (5 + 5)/5)5 − 55 := (5 + 5) × (5 × 5 − 5) − (5 + 5)/5 := (55 − 5)/(5 + 5 + 5) − 5 := 6 + 6 + 6 × (6 × 6 − 6) + 6/6 := 6 × 66 × 6/(6 + 6) := 6 × 6 × 6 − 6 − 6 − 6/6 4 4 7 := (7 + 7) × (7 + 7) − (7 + 7 + 7)/7 := 77 + ((7 + 7)/7) − 7 := 7 + (7 + 7) × (7 + 7) := 8/8 + 8 × (8 + 8 + 8) := 88 + (888 − 8)/8 := 8 × (8 + 8 + 8) + 88/8 := 9 × 9 + (999 + 9)/9 := 99 + 99 := 9 × 9 + (999 + 99)/9 Ï 194 := (1 + 1 + 1 + 11)1+1 − 1 − 1 Ï 199 := (1 + 1) × (11 − 1)1+1 − 1 Ï 204 := (1 + 1) × (1 + 1 + (11 − 1)1+1 ) := (22+2 − 2)2 − 2 := ((22 − 2)2 − 2)/2 := 2 + 2 + 222 − 22 := 33 × (3 + 3) − 3 − 3/3 := 3/3 + 33 × (3 + 3) := 3 + 33 × (3 + 3) + 3 := 4 + (4 − 4 + 4)/4 := 4 + 4 + 44 − (44 + 4)/4 := 44 + 4 × (44 − 4) := 5 × 5 × (5 + 5) − 55 − 5/5 := (5 + 5) × (5 × 5 − 5) − 5/5 := 66 + ((6 + 6)/6)6/6+6 := 6 × 6 × 6 − 6 − 66/6 := (7 + 7) × (7 + 7) − (7 + 7)/7 := 77 + (777 + 77)/7 := (8 + 8)/8 + 8 × (8 + 8 + 8) := 88 + 888/8 := 9 × 9 + (999 + 9 + 9)/9 := 99 + 99 + 9/9 4 4 Ï 195 := (1 + 1 + 1 + 11)1+1 − 1 := 5 + (5 + 5) × (5 × 5 − 5) − 5/5 := 6 × 6 × 6 − 6 − 6 := 7 + (7 + 7) × (7 + 7) + 7/7 := (88 + 8)/8 + 8 × (8 + 8 + 8) := (999/9 − 9) × (9 + 9)/9 Ï 200 := (1 + 1) × (11 − 1)1+1 Ï 205 := (1 + 1 + (1 + 1)11 )/(11 − 1) := 2 + 2 + ((22 − 2)2 + 2)/2 := (22+2 − 2)2 − 2/2 := 222 − 22 := 33 × (3 + 3) − 3 := 3 + 33 × (3 + 3) − 3/3 := 4 + 44 − (44 + 4)/4 := 4 + 4 + 4 × (44 + 4) := ((4 + 4)4 + 4)/(4 × 4 + 4) := 5 × 5 × (5 + 5) − 55 := (5 + 5) × (5 × 5 − 5) := 5 + (5 + 5) × (5 × 5 − 5) := (6 × 66 − 6) × 6/(6 + 6) := 6 × 6 × 6 − 6 + (6 − 66)/6 := 6 × 6 × 6 − 66/6 := (7 + 7) × (7 + 7) − 7/7 := (7 + 7) × (7 + 7) − 7 + 77/7 := 77 + ((7 + 7)/7)7 := 8 + 88 + 88 + 88/8 := 8 + 8 × (8 + 8 + 8) := 88 + 8 × (8 + 8) − 88/8 := 99 + 99 − (9 + 9 + 9)/9 := 99 + 99 + (9 + 9)/9 := 9 + 99 + 99 − (9 + 9)/9 := (3 + 3)3 − 33/3 Ï 206 := 1 + (1 + 1 + (1 + 1)11 )/(11 − 1) Ï 196 := (1 + 1 + 1 + 11)1+1 Ï 201 := 1 + (1 + 1) × (11 − 1)1+1 := (22+2 − 2)2 := ((22 − 2)2 + 2)/2 := 222 − 22+2 := 3/3 + 33 × (3 + 3) − 3 := 3 + 33 × (3 + 3) := (3 + 3)3 + (3 − 33)/3 := 4 + 4 × (44 + 4) := 44 − 44 − 44/4 := 44 + 44 + 4 − (4 + 4)/4 := 5/5 + (5 + 5) × (5 × 5 − 5) := 5 + (5 + 5) × (5 × 5 − 5) + 5/5 := 66 + 66 + ((6 + 6)/6) := (6 × 66 + 6) × 6/(6 + 6) := 6 × 6 × 6 + (6 − 66)/6 := (7 + 7) × (7 + 7) := 7 + (7 + 7) × (7 + 7) − (7 + 7)/7 := 77 + 7/7 + ((7 + 7)/7)7 := 8 × (8 + 8 + 8) + 8 × 8/(8 + 8) := 8 + 8 × (8 + 8 + 8) + 8/8 := 8 + 88 + (888 − 8)/8 := 99 + 99 − (9 + 9)/9 := 9 + 9 × 9 + 999/9 := 9 + 99 + 99 − 9/9 := 5/5 + 5 × 5 × (5 + 5) − 55 6 Ï 197 := 1 + (1 + 1 + 1 + 11)1+1 Ï 202 := (1 + 1) × (1 + (11 − 1)1+1 ) Ï 207 := 11 + (1 + 1 + 1 + 11)1+1 := 2/2 + (22+2 − 2)2 := 2 + 222 − 22 := 2/2 + 222 − 22+2 := 33 × (3 + 3) − 3/3 := 3 + 33 × (3 + 3) + 3/3 := (3 + 3)3 − 3 × 3 := 4 + 44 + (4 − 44 )/4 := 44 + (4 − 44)/4 − 44 := 44 − 4 − 44 − 4/4 := 5 + (5/5 + 5) × ((5 + 5)/5)5 := (5 + 5)/5 + (5 + 5) × (5 × 5 − 5) := (55 − 5 × 5 + 5)/(5 + 5 + 5) := (66 × (6 + 6 + 6) − 6)/6 := 6 × 6 × 6 − 6 − 6 − (6 + 6)/6 := 6 + (6 × 66 + 6) × 6/(6 + 6) := 7/7 + (7 + 7) × (7 + 7) := 7 + (7 + 7) × (7 + 7) − 7/7 := (7 + 7) × (7 + 7) + 77/7 := 88 + (888 − 8 − 8)/8 := 8 + 8 × (8 + 8 + 8) + (8 + 8)/8 := 8 + 88 + 888/8 := 99 + 99 − 9/9 := 9 + 9 × 9 + (999 + 9)/9 := 9 + 99 + 99 23 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 208 := (1 + 1) × (111 − 1) − 1 − 11 := 2 + 222 − 2 2+2 Ï 213 := (1 + 1) × (1 + 111) − 11 Ï 218 := (1 + 1) × (111 − 1 − 1) := 222 − 2 − 2 := 2 + 222 − 22/2 := 3 + (3 + 3)3 − 33/3 := (3 + 3) − 3 := 3 + (3 + 3)3 − 3/3 := 4 × (44 + 4 + 4) := 44 − 44 + 4/4 := 444 × 4/(4 + 4) − 4 := (55 − 5)/(5 + 5 + 5) := 5 + (55 − 5)/(5 + 5 + 5) := (5 − (5 + 5)/5)5 − 5 × 5 := 6 × 6 × 6 − 6 − (6 + 6)/6 := 6 × 6 × 6 − 6 × 6/(6 + 6) := 6 × 6 × 6 + (6 + 6)/6 3 := 7 × (7 + 7) + (777 − 7)/7 := 7 + 77 + ((7 + 7)/7) + 7/7 := 7/7 + 7 × (7 × 7 − 7) − 77 := 8 + 8 + 8 × (8 + 8 + 8) := 8 + 88 + 8 × (8 + 8) − 88/8 := 88 + 8 × (8 + 8) + (8 + 8)/8 := 9 + 99 + 99 + 9/9 := (9 + 9) × (9 + 9) − 999/9 := 9 + 99 + 99 + 99/9 Ï 209 := 11 × ((1 + 1) × (11 − 1) − 1) 7 Ï 214 := 1 + (1 + 1) × (1 + 111) − 11 := 222 − 2 × (2 + 2) := 222 − 22/2 − 2 Ï 219 := (1 + 1) × (111 − 1) − 1 := 222 − 2/2 − 2 3 := 33/3 + 33 × (3 + 3) := 3/3 + (3 + 3) − 3 := 3 + (3 + 3)3 := 4/4 + 4 × (44 + 4 + 4) := 44 − 44 + (4 + 4)/4 := 44 + 4 × 44 − 4/4 5 := (5 + 5 + 5)/(5 + 5 + 5) := 5 + (5 + 5 + 5)/(5 + 5 + 5) := 5 × 55 − 55 − 5/5 := 6 × 6 × 6 − 6/6 − 6 := 6 × 6 × 6 − (6 + 6)/6 := 6 × 6 × 6 + 6 × 6/(6 + 6) := 7 × (7 + 7) + 777/7 := 7 + (7 + 7) × (7 + 7) + 77/7 := 77 + 7 + 7 + ((7 + 7)/7)7 := 88/8 × (88/8 + 8) := 88 + 8 × (8 + 8) − (8 + 8)/8 := 8 + 8 + 8 × (8 + 8 + 8) + 88/8 := 99 + 99 + 99/9 := (9 + 9)/9 × (99 + 9 − 9/9) := 9 + 99 + 999/9 Ï 210 := (11 − 1) × (11 + 11 − 1) := 222 − 2 × (2 + 2 + 2) := (3 + 3)3 − 3 − 3 5 Ï 215 := (1 + 1) × (1 + 1 + 111) − 11 := 2 + 2 + 222 − 22/2 Ï 220 := (1 + 1) × (111 − 1) := 222 − 2 3 := (3 + 3) − 3/3 := 3 + (3 + 3)3 + 3/3 := 4 − 44 − (4 + 4)/4 := 4 + 44 − 44 − 4/4 := 44 + 4 × 44 := 5 + (5 + 5) × (5 × 5 − 5) + 5 := 5 × 55 − 55 − 5 := 55 × (5 − 5/5) := 6 × 6 × 6 − 6 := 6 × 6 × 6 − 6/6 := 6 + 6 × 6 × 6 − (6 + 6)/6 := 7 + 7 + (7 + 7) × (7 + 7) := 7 × 7 × 7 − ((7 + 7)/7)7 := 77/7 × (7 − 7/7 + 7 + 7) := 88 + (888 + 88)/8 := 88 + 8 × (8 + 8) − 8/8 := (8 + 8) × (888 − 8)/(8 × 8) := 99 + 999/9 := ((9 + 9) × (99 + 9) − 9)/9 := 99/9 × (99/9 + 9) 4 Ï 211 := (1 + 1) × 111 − 11 Ï 216 := (1 + 1) × (111 − (1 + 1 + 1)) Ï 221 := (1 + 1) × 111 − 1 := 222 − 22/2 := (2 + 2 + 2)2/2+2 := 3/3 + (3 + 3)3 − 3 − 3 := 222 − 2/2 := (3 + 3)3 := 3 + (3 + 3)3 − 3/3 + 3 4 4 := 4 − 44 − 4/4 := 4 + 4 − 44 := 44 + 4 × 44 + 4/4 := 55 + (5 − 5)/(5 × 5 − 5) := (5 − 5/5) × (55 − 5/5) := 55 × (5 − 5/5) + 5/5 := 6 × 6 × 6 − 6 + 6/6 := 6 × 6 × 6 := 6 + (6 × 6 × 6 − 6/6) 5 := 7 + 7 + (7 + 7) × (7 + 7) + 7/7 := (7 − 7/7) := 8 + 8 × (8 + 8 + 8) + 88/8 := 88 + 8 × (8 + 8) := (888 − 8 + 888)/8 := 9 + 9 + 99 + 99 := 99 + (999 + 99)/9 := 99 + (999 + 9)/9 Ï 212 := 1 + (1 + 1) × 111 − 11 := 222 + ((2 − 22)/2) (7+7+7)/7 := (777 + 777 − 7)/7 Ï 217 := (1 + 1) × (111 − 1 − 1) − 1 := 222 − 2 − 2 − 2/2 3 Ï 222 := (1 + 1) × 111 := 222 3 := (3 + 3) − (3/3 + 3) := (3 + 3) + 3/3 := 3 + (3 + 3)3 + 3 := 44 − 44 := 4 + 44 − 44 + 4/4 := 444 × 4/(4 + 4) 5 5 := (55 + 5 )/(5 + 5 + 5) := 5 + (55 + 5 )/(5 + 5 + 5) := (5 + 5) × 555/(5 × 5) := 6 × 6 × 6 − 6 + (6 + 6)/6 := 6/6 + 6 × 6 × 6 := 6 + 6 × 6 × 6 := 77 + 7 + ((7 + 7)/7) := 7 × (7 × 7 − 7) − 77 := ((7 + 7)/7) × 777/7 := (8 × 8 × 8 − 88) × 8/(8 + 8) := 8/8 + 8 × (8 + 8) + 88 7 := 99 + (999 + 9 + 9)/9 := (8 + 8) × 888/(8 × 8) 9 := 9 × 9 × 9 − ((9 + 9)/9) 24 := (9 + 9) × 999/(9 × 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 228 := (1 + 1) × (1 + 1 + 1 + 111) Ï 223 := 1 + (1 + 1) × 111 Ï 233 := 11 + (1 + 1) × 111 := 222 + 22/2 := 2 + 222 + 2 + 2 := 2/2 + 222 := 3 + (3 + 3) + 3/3 + 3 := 3 + (3 + 3) + 3 × 3 := 3 × (3 × 33 − 3) − 3/3 := 44 + 44/4 − 44 := 4 + 44 − 4 × (4 + 4) := 4 + 44 − 4 × 4 − 44/4 := 5 + (5 − (5 + 5)/5)5 − 5 × 5 := (5 − 5/5) × ((5 + 5)/5 + 55) := (5 − (5 + 5)/5)5 − 5 − 5 := 6 + 6 × 6 × 6 + 6/6 := 6 + 6 + 6 × 6 × 6 := 6 + 6 × 6 × 6 + 66/6 := 7 + (7 − 7/7) := (7 − 7/7) × (7 × 7 − 77/7) := 7 + 7 × (7 + 7) + ((7 + 7)/7)7 := 8 + 88 + 8 × (8 + 8) − 8/8 := (88/8 + 8) × (88 + 8)/8 := 8 + (8 + 8 − 8/8)(8+8)/8 := 9 × (9 + 9 + 9) − 99/9 − 9 := 9 + 99 + 9 + 999/9 := 9 × (9 + 9 + 9) − 9/9 − 9 3 3 (7+7+7)/7 Ï 229 := 1 + (1 + 1) × (1 + 1 + 1 + 111) Ï 224 := (1 + 1) × (1 + 111) Ï 234 := 1 + 11 + (1 + 1) × 111 := (222 − 22)/2 − 2 := 22×(2+2) − 22 := 3 × 3 + ((3 + 3) − 3/3) := (33+3 − 33)/3 − 3 := 3 × (3 × 33 − 3) := 44 − 4 × (4 + 4) := 44 − 44/4 − 4 × 4 := 44 − 44 × 4/(4 + 4) := (5 − 5/5) × (55 + 5/5) := 5 + (5 − 5/5) × (55 + 5/5) := (5 − 5/5 + 5) × (5 × 5 + 5/5) := 6 + 6 × 6 × 6 + (6 + 6)/6 := 6 + 6 × 6 × 6 + 6/6 + 6 := 6 + 6 × 6 × 6 + 6 + 6 := 77 + 7 × (7 + 7 + 7) := 7 + (7 + 7) × 777/(7 × 7) := (77 + 7/7) × (7 + 7 + 7)/7 := 8 + 8 × (8 + 8) + 88 := 8 + (888 + 888 − 8)/8 := (8 × (8 + 8) − 88/8) × (8 + 8)/8 := 9 + ((9 + 9) × (99 + 9) − 9)/9 := 9 + 99/9 × (9 + 99/9) := 9 × (9 + 9 + 9) − 9 := 2 + 222 3 Ï 225 := 1 + (1 + 1) × (1 + 111) Ï 230 := (11 − 1) × (1 + 11 + 11) := 2 + 222 + 2/2 := 222 + 2 × (2 + 2) 3 Ï 235 := 11 + (1 + 1) × (1 + 111) := 2 + 222 + 22/2 3 := 3 + (3 + 3) + 33/3 := 3 + (33+3 − 33)/3 := 4/4 + 44 − 4 × (4 + 4) := 4 + 4 + 444 × 4/(4 + 4) := 44 − 4 − 4 × 4 − 4/4 := 5 × (55 − 5 − 5) := 3 × 3 + (3 + 3) := 5 + 5 × (55 − 5 − 5) := 5 + 5 + 5 × (55 − 5 − 5) := 6 + 6 × 6/(6 + 6) + 6 × 6 × 6 := 6 + 6 + 6 × 6 × 6 + (6 + 6)/6 := 6 + 6 + 6 + 6 × 6 × 6 + 6/6 := (7/7 + 7 + 7)(7+7)/7 := (77 × (7 + 7 + 7) − 7)/7 := 7 + (7 − 7/7) × (7 × 7 − 77/7) := 8 + (8 + 8) × 888/(8 × 8) := (8 × 8 × 88 + 8)/(8 + 8 + 8) := 9 + 99 + (999 + 99)/9 := 9/9 + (9 × (9 + 9 + 9) − 9) := (8 − 8/8 + 8) (8+8)/8 := (9 + 9) × (9 + 9) − 99 Ï 236 := 1 + 11 + (1 + 1) × (1 + 111) Ï 231 := 11 × (11 + 11 − 1) Ï 226 := (1 + 1) × (1 + 1 + 111) := 2 + 222 + 2 := (22 − 22)/2 := 2 + 22×(2+2) − 22 := 3 × 3 + (3 + 3)3 + 3/3 := 33 + 33 × (3 + 3) := (33+3 − 3)/3 − 3 − 3 := 4 + 444 × 4/(4 + 4) := 44 + 4 × 44 + 44/4 := 44 − 4 × 4 − 4 := 5/5 + 5 × (55 − 5 − 5) := 5 + 5 × (55 − 5 − 5) + 5/5 := 5 × 5 × 5 + 555/5 := 6 × 6 × 6 + (66 − 6)/6 := 66 × (6 × 6 + 6)/(6 + 6) := 66 × 66/(6 + 6 + 6) − 6 := 7 × (7 + 7) + ((7 + 7)/7)7 := 77 + 77 + 77 := (7 + 777/7) × (7 + 7)/7 := 8 + 8 × (8 + 8) + (8 + 8)/8 + 88 := 8 × (8 + 8) + 888/8 − 8 := 8 + (88/8 + 8) × (88 + 8)/8 := 9 + (9 + 9) × 999/(9 × 9) := 9 × (9 + 9 + 9) − 9 + (9 + 9)/9 2 9 := 9 + 9 × 9 × 9 − ((9 + 9)/9) Ï 227 := 1 + (1 + 1) × (1 + 1 + 111) Ï 232 := 111 + 111+1 Ï 237 := 11 + (1 + 1) × (1 + 1 + 111) := 2 + 2 + 222 + 2/2 := 2 + 222 + 2 × (2 + 2) := (222 − 2)/2 − 2 − 2 := (3 + 3)3 + 33/3 := (33+3 − 33)/3 := 3 + 3 × (3 × 33 − 3) := 4 − 44 + 44 + 44/4 := 44 − 4 × 4 − 4 − 4 := 4/4 + 44 − (4 × 4 + 4) := 5 + (5 + 5) × 555/(5 × 5) := (5 + 5)/5 × (555/5 + 5) := 5 × 5 × 5 + (555 + 5)/5 := 6 × 6 × 6 + 66/6 := 6 + 6 × 6 × 6 + (66 − 6)/6 := 6 + 66 × (6 × 6 + 6)/(6 + 6) := 7 + 77/7 × (7 − 7/7 + 7 + 7) := 7 × 7 × 7 − 777/7 := 7 + (77 × (7 + 7 + 7) − 7)/7 := 88 + 8 × (8 + 8) + 88/8 := 88 + 8 + 8 + 8 × (8 + 8) := (8 + 8) × (8 + 8) − 88/8 − 8 := ((9 + 9) × (99 + 9) + 99)/9 := 9 × (9 + 9 + 9) − 99/9 := 99 + 9 + 9 + 9 + 999/9 25 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 238 := (1 + 1) × (111+1 − 1 − 1) Ï 243 := 1 + (1 + 1) × 111+1 := 2 × ((22/2)2 − 2) := (222 + 2)/2 := 2 + 222 /2 + 2 + 2 := (33+3 + 3)/3 − 3 − 3 := 3 × 3 × 33 := 3 + (33+3 − 3)/3 + 3 := 44 − 4 × 4 − (4 + 4)/4 := (4 − 4/4)4/4+4 := 44 − 4 − 4 := (5 − (5 + 5)/5)5 − 5 := (5 − (5 + 5)/5)5 := 5 + (5 − (5 + 5)/5)5 := 6 × 6 × 6 + (66 + 66)/6 := (6 × 6/(6 + 6))6−6/6 Ï 248 := (1 + 1) × (1 + 1 + 1 + 111+1 ) := 6 + 66 × 66/(6 + 6 + 6) := 777 − 7 × 77 := ((7 + 7 + 7)/7) := 77 + (7 × 7 × 7 × 7 − 7)/(7 + 7) := 8 × (8 + 8) + (888 − 8)/8 := (8 + 8/8) × (8 + 8 + 88/8) := (8 + 8) × (8 + 8) − 8 := 9 × (9 + 9 + 9) := 9/9 + ((9 + 9)/9)9−9/9 − 9 Ï 244 := (1 + 1) × (1 + 111+1 ) Ï 249 := 1 + (1 + 1) × (1 + 1 + 1 + 111+1 ) 7−(7+7)/7 9−9/9 := ((9 + 9)/9) −9−9 Ï 239 := (1 + 1) × (111+1 − 1) − 1 := (222 − 2)/2 − 2 := 2 + 222 /2 := 2 + (222 + 2)/2 + 2 + 2 := (33+3 − 3)/3 − 3 := (33+3 + 3)/3 := 33 + (3 + 3)3 := 44 − 4 × 4 − 4/4 := 4 + 44 − 4 × 4 := 4 + 44 − 44/4 := 5 × 5 × (5 + 5) − 55/5 := 5/5 + (5 − (5 + 5)/5)5 := 5 × 5 × (5 + 5) − 5/5 := 6 + 6 + 6 × 6 × 6 + 66/6 := ((6 + 6)/6) + 6 × (6 × 6 − 6) := 6 + (6 × 6/(6 + 6))6−6/6 := 7 + 7 × 7 × 7 − 777/7 := 7 × (7 × 7 − 7 − 7) − 7/7 := ((7 + 7)/7)7/7+7 − 7 := 8 × (8 + 8) + 888/8 := (8 + 8) × (8 + 8) − (88 + 8)/8 := 8/8 + (8 + 8) × (8 + 8) − 8 := 9 × (9 + 9 + 9) + ((9 − 9 × 9)/(9 + 9)) := 9 × (9 + 9 + 9) + 9/9 := 9 + (999/9 + 9) × (9 + 9)/9 Ï 240 := (1 + 1) × (111+1 − 1) 2 6 Ï 245 := 1 + (1 + 1) × (1 + 111+1 ) 2 Ï 250 := (11 − 1) × (1 + (1 + 1) × (1 + 11)) := 22 /2 − 2 := 2 + (22 + 2)/2 := 2 × ((22/2)2 + 2 + 2) := 3 × 3 × 33 − 3 := 3 + (33+3 − 3)/3 := 3 + 3 + (33+3 + 3)/3 := 44 − 4 × 4 := 44 − 44/4 := 44 − 4 − (4 + 4)/4 := (5 + 5) × (5 × 5 − 5/5) := 5 × 5 × (5 + 5) − 5 := 5 × 5 × (5 + 5) := 6 × (6 × 6 + 6) − 6 − 6 := (6 + 6/6) × (6 × 6 − 6/6) := 6 × (6 × 6 + 6) − (6 + 6)/6 := (7 − (7 + 7)/7) × (7 × 7 − 7/7) := 7 × (7 × 7 − 7 − 7) := (7 − (7 + 7)/7) × (7 × 7 + 7/7) := 8 × 8 + 88 + 88 := (8 + 8) × (8 + 8) − 88/8 := (8 + 8) × (8 + 8) + (8 + 8)/8 − 8 := (999/9 + 9) × (9 + 9)/9 := 9 × (9 + 9 + 9) + (9 + 9)/9 := 9 + 9 × (9 + 9 + 9) − (9 + 9)/9 Ï 241 := (1 + 1) × 111+1 − 1 Ï 246 := (1 + 1) × (1 + 1 + 111+1 ) Ï 251 := 11 + (1 + 1) × (111+1 − 1) := (222 − 2)/2 := 2 + 222 /2 + 2 := (222 + 22)/2 − 2 := (33+3 + 3)/3 − 3 := 3 + 3 × 3 × 33 := 3 × 3 + (33+3 − 3)/3 := 4/4 + 44 − 4 × 4 := 44 + (4 − 44)/4 := 44 − 4/4 − 4 := 5 + 555/5 + 5 × 5 × 5 := 5/5 + 5 × 5 × (5 + 5) − 5 := 5/5 + 5 × 5 × (5 + 5) := 6 × (6 × 6 + 6) − 6/6 := 6 × (6 × 6 + 6) − 66/6 := 6 × (6 × 6 + 6) − 6 := 7 + (7/7 + 77) × (7 + 7 + 7)/7 := 7/7 + 7 × (7 × 7 − 7 − 7) := 7 + 7 × (7 × 7 − 7 − 7) − 7/7 := 8/8 + 8 × 8 + 88 + 88 := (8 + 8) × (8 + 8) + (8 − 88)/8 := 8 + (8/8 + 8) × (88/8 + 8 + 8) := 9 × (9 + 9 + 9) − (9 + 9)/9 := 9 × (9 + 9 + 9) + (9 + 9 + 9)/9 := 9 + 9 × (9 + 9 + 9) − 9/9 Ï 242 := (1 + 1) × 111+1 Ï 247 := 1 + (1 + 1) × (1 + 1 + 111+1 ) 2 2 := 22 /2 := (33+3 − 3)/3 := 2 + (22 + 2)/2 + 2 := 22×(2+2) − 2 − 2 3+3 := 3 × (3 × 33 + 3) := 3 + (3 := 44 × 44/(4 + 4) 5 Ï 252 := (1 + 11) × (11 + 11 − 1) + 3)/3 4 := 4 − 4/4 − 4 − 4 := 44 − 4 5 := (5 − (5 + 5)/5) − 5/5 := 5 + (5 − (5 + 5)/5) − 5/5 := (5 + 5)/5 + 5 × 5 × (5 + 5) := 66 × 66/(6 + 6 + 6) := 6/6 + 6 × (6 × 6 + 6) − 6 := 6 × (6 × 6 + 6) := 77/7 × (7 + 7 + 7 + 7/7) := (7 + 7)/7 + 7 × (7 × 7 − 7 − 7) := 7 + 7 × (7 × 7 − 7 − 7) := 88 × (88 + 88)/(8 × 8) := (8 + 8) × (8 + 8) − 8 − 8/8 := (8 × 8 × 8 − 8) × 8/(8 + 8) := 9 × (9 + 9 + 9) − 9/9 9−9/9 := ((9 + 9)/9) −9 26 := 9 + 9 × (9 + 9 + 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 253 := 11 × (1 + 11 + 11) 2 Ï 258 := 1 + 1 + (1 + 1)(1+1) 1+1+1 Ï 263 := (1 + 1) × 11 × (1 + 11) − 1 := 22 + (222 − 2)/2 2×(2+2) := (22 + 22)/2 := 2 + 2 := 3 × 3 + (33+3 + 3)/3 := 3 + 3 × (3 × 33 + 3) + 3 := (33 × (33 − 3) − 3)/3 := 4/4 + 44 − 4 := 44 + (4 + 4)/4 := 4 + 44 − 4/4 + 4 := 5 + 5 + (5 − (5 + 5)/5)5 := (55 + 5)/(5 + 5) − 55 := 5 × 55 − (55 + 5)/5 := 6/6 + 6 × (6 × 6 + 6) := 6 + 6 × (6 × 6 + 6) := 66/6 + 6 × (6 × 6 + 6) := 7 + 7 × (7 × 7 − 7 − 7) + 7/7 := (7 − 7/7) × ((7/7 − 7) + 7 × 7) := 7 + ((7 + 7)/7)7/7+7 := 8 + (8 + 8) × (8 + 8) − 88/8 := (8 + 8)/8 + (8 + 8) × (8 + 8) := 8 + (8 + 8) × (8 + 8) − 8/8 := 9 + 9 × (9 + 9 + 9) + 9/9 := 99 + 9 × (9 + 9) − (9 + 9 + 9)/9 := 9 + 9 × (9 + 9 + 9) + 99/9 Ï 254 := 1 + 11 × (1 + 11 + 11) := 22×(2+2) − 2 := (3 3+3 1+1+1 Ï 259 := 1 + 1 + 1 + (1 + 1)(1+1) := 2 + 22×(2+2) + 2/2 Ï 264 := (1 + 1) × 11 × (1 + 11) := 2 × 22 × (2 + 2 + 2) 3/3+3 + 33)/3 := 3 + (3/3 + 3) := 4 − (4 + 4)/4 := 4 + 44 − 4/4 := 4 + 44 + 4 := 5 + 5 × 5 × (5 + 5) − 5/5 := 5 × 55 − 55/5 − 5 := 5 × 55 − 55/5 := (6 + 6)/6 + 6 × (6 × 6 + 6) := 6 + 6 × (6 × 6 + 6) + 6/6 := 6 + 6 × (6 × 6 + 6) + 6 := 77 + ((7 + 7)/7) + 7 × 7 := 7 × 7 × 7 − 77 − 7 := 7 × 7 × 7 − (7 + 7)/7 − 77 := (8 + 8) × (8 + 8) − (8 + 8)/8 := 88/8 + (8 + 8) × (8 + 8) − 8 := 8 + (8 + 8) × (8 + 8) := 99/9 + 9 × (9 + 9 + 9) := 99 + 9 × (9 + 9) − (9 + 9)/9 := 9 × (9 + 9) + 999/9 − 9 4 7 Ï 255 := 111 + (1 + 11)1+1 2×(2+2) := 33 × (3 × 3 − 3/3) Ï 260 := (1 + 1) × (11 − 1) × (1 + 1 + 11) Ï 265 := 1 + (1 + 1) × 11 × (1 + 11) := 2 + 22×(2+2) + 2 := 22 + (222 + 2)/2 := 3 + 3 × (3 × 33 + 3) := 3 + (33+3 + 33)/3 + 3 := (33 × (33 − 3) + 3)/3 := 44 − 4/4 := 4 + 44 := 4 + 4/4 + 44 + 4 := 5 + 5 × 5 × (5 + 5) := 5 + 5 × 5 × (5 + 5) + 5 := 5 × 55 − 5 − 5 := 6 × (6 × 6 + 6) + 6 × 6/(6 + 6) := 6 + 6 × (6 × 6 + 6) + (6 + 6)/6 := 6 + 6 × (6 × 6 + 6) + 6/6 + 6 := 7 × 7 × 7 − 77/7 − 77 := 2 − 2/2 := 7/7 + 7 × 7 × 7 − 77 − 7 := 7 × 7 × 7 − 7/7 − 77 := (8 + 8) × (8 + 8) − 8/8 := (8 × 8 × 8 + 8) × 8/(8 + 8) := 8 + (8 + 8) × (8 + 8) + 8/8 := 9 × (9 + 9 + 9) + (99 + 9)/9 := 99 + 9 × (9 + 9) − 9/9 := 9 + ((9 + 9)/9)9−9/9 Ï 256 := (1 + 1)(1+1) 1+1+1 Ï 261 := (1 + 1) × (11 × (1 + 11) − 1) − 1 := 22×(2+2) := 2 + 2 := (3/3 + 3)3/3+3 := 4 2×(2+2) + 2/2 + 2 3 4 5−5/5 := (5 − 5/5) (6+6)/6+6 := ((6 + 6)/6) 7/7+7 Ï 266 := (1 + 1) × (1 + 11 × (1 + 11)) := 222 + 2 × 22 := 3 × (3 × 3 + 3 + 3) := 3 + (33 × (33 − 3) − 3)/3 := 4 + 4/4 + 44 := 44 + (44 − 4)/4 := 5 + (5 − 5/5)5−5/5 := 5/5 + 5 × 55 − (5 + 5) := 6 + 6 × (6 × 6 + 6) + 6 × 6/(6 + 6) := (6/6 + 6) × ((6 + 6)/6 + 6 × 6) 7 := ((7 + 7)/7) := 7 + ((7 + 7)/7) + 77 + 7 × 7 := 7 × 7 × 7 − 77 := (8 + 8) × (8 + 8) := (88/8 − 8) × (88 − 8/8) := 8 + (8 + 8) × (8 + 8) + (8 + 8)/8 := ((9 + 9)/9)9−9/9 := 99 + 9 × (9 + 9) := 9 + ((9 + 9)/9)9−9/9 + 9/9 1+1+1 Ï 257 := 1 + (1 + 1)(1+1) 2×(2+2) Ï 262 := (1 + 1) × (11 × (1 + 11) − 1) 2 Ï 267 := 1 + (1 + 1) × (1 + 11 × (1 + 11)) := 22 − 222 := 22/2 + 22×(2+2) := 3 + (33+3 + 33)/3 := 3 + (3/3 + 3)3/3+3 + 3 := 3 × 3 × (33 + 3) − 3 := 4/4 + 44 := 4 + (4 + 4)/4 + 44 := 44 + 44/4 := (55 − 5)/(5 + 5) − 55 := 5 + (55 − 5)/(5 + 5) − 55 := 5 × 55 + ((5 + 5)/5 − 5 − 5) := 2/2 + 2 := 6 + 6 × (6 × 6 + 6) − 6/6 (6+6)/6+6 := 6 + ((6 + 6)/6) := 666 × 6/(6 + 6) − 66 := 7/7 + ((7 + 7)/7) := (7 × 7 × 77 − 7)/(7 + 7) − 7 := 7/7 + 7 × 7 × 7 − 77 := 8/8 + (8 + 8) × (8 + 8) := 8 + (8 + 8) × (8 + 8) − (8 + 8)/8 := 88/8 + (8 + 8) × (8 + 8) := 9/9 + ((9 + 9)/9)9−9/9 := 9/9 + 9 × (9 + 9) + 99 := 99/9 + ((9 + 9)/9)9−9/9 7/7+7 27 Inder J. Taneja Ï 268 := (1 + 1) × (1 + 1 + 11 × (1 + 11)) := 2 + 222 + 2 × 22 3 := 3 + (33 × (3 − 3) + 3)/3 4 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 273 := (1 + 1 + 11) × (11 + 11 − 1) := (22/2 + 2) × (22 − 2/2) 3 Ï 278 := (1 + 1111)/(1 + 1 + 1 + 1) := 22 + 22×(2+2) := 3 + (33+3 − 3)/3 + 33 := 3 + 3 × 3 × (3 + 3) 4 := 44 + 44 × 4/(4 + 4) := 4 + 4 + 4 + 4 := 4 × 4 + 4/4 + 4 := 5 × 5 + (5 − (5 + 5)/5)5 := 5 × 55 − (5 + 5)/5 := 5 + 5 × 55 − (5 + 5)/5 := (6 − (6 + 6)/6) × (66 + 6/6) := 6 + 666 × 6/(6 + 6) − 66 := 6 × 6 + 66 × 66/(6 + 6 + 6) := 7 × 7 × 7 + (7 + 7)/7 − 77 := 7 + 7 × 7 × 7 − 77 := 7 × 7 × 7 + (77 + 7)/7 − 77 := 8 + (8 × 8 × 8 + 8) × 8/(8 + 8) := 8 + (8 + 8) × (8 + 8) + 8/8 + 8 := 88 + 8 × (8 + 8 + 8) − (8 + 8)/8 := 9 + 9 × (9 + 9) − (9 + 9)/9 + 99 := 9 × (9 + 9) + 999/9 := 99 + 9 × 9 − 9/9 + 99 Ï 269 := 1 + (1 + 1) × (1 + 1 + 11 × (1 + 11)) := 2 + 2 2×(2+2) + 22/2 Ï 274 := 11 × (1 + (1 + 1) × (1 + 11)) − 1 := 2 + 2 2×(2+2) +2 2+2 Ï 279 := 1 + (1 + 1111)/(1 + 1 + 1 + 1) := 2 + ((22 + 2)2 − 22)/2 := 33 + (33+3 − 3)/3 := 3 + 3 × 3 × (33 + 3) + 3/3 := 3 × (3 × (33 + 3) + 3) := 4 + 4/4 + 44 + 4 + 4 := 4 × 4 + ((4 + 4)/4 + 44 ) := 4 + 44/4 + 44 + 4 + 4 := 5 × 55 − (5/5 + 5) := 5 × 55 − 5/5 := 5 + 5 × 55 − 5/5 := 6 + 6 × (6 × 6 + 6) + 66/6 6 := 6 × 6 × 6 + ((6 + 6)/6) − 6 := 6 × 66 − 666/6 − 6 := (7 × 7 × 77 − 7)/(7 + 7) := 7 + 7 × 7 × 7 − 77 + 7/7 := 7 × (7 × 7 − 7) − 7/7 − 7 − 7 := 8 + (88/8 − 8) × (88 − 8/8) := 8 + (8 + 8) × (8 + 8) + (8 + 8)/8 + 8 := 88 + 8 × (8 + 8 + 8) − 8/8 := 9 + 9 × (9 + 9) − 9/9 + 99 := 9 + ((9 + 9)/9)9−9/9 + 9 := 99 + 99 + 9 × 9 Ï 270 := (11 − 1) × (1 + 1 + 1)1+1+1 Ï 275 := 11 × (1 + (1 + 1) × (1 + 11)) Ï 280 := 111 + (1 + 1 + 11)1+1 := 222 + 2 × (22 + 2) := 22 + (222 + 22)/2 := 2 + 22×(2+2) + 22 := 3 × 3 × (33 + 3) := 33 + (33+3 − 3)/3 := (3 + 3)3 + (3/3 + 3)3 := 4 + (44 − 4)/4 + 44 := 4 + 44/4 + 44 + 4 := 4 + 4 × 4 + 44 + 4 := 5 × 55 − 5 := 5 × 55 := 5 + 5 × 55 := 666 − 6 × 66 := 66 + 6 × 6 × 6 − 6/6 − 6 := 6 × 6 × 6 + ((6 + 6)/6)6 := (7 × 7 × 77 + 7)/(7 + 7) := 77/7 × (77/7 + 7 + 7) := 7 × (7 × 7 − 7) − 7 − 7 := 8 + 8 + (8 + 8) × (8 + 8) − (8 + 8)/8 := 8 + (8 + 8) × (8 + 8) + 88/8 := 88 + 8 × (8 + 8 + 8) := 9 + 9 × (9 + 9) + 99 := 9 × (9 + 9) + (999 + 9 + 9)/9 := 9/9 + 99 + 99 + 9 × 9 Ï 271 := 1 + (11 − 1) × (1 + 1 + 1)1+1+1 Ï 276 := (1 + 11) × (1 + 11 + 11) := 2 + 22×(2+2) + 22/2 + 2 := 22 + 22×(2+2) − 2 := 2 + ((22 + 2)2 − 22)/2 + 2 := 33 + (33+3 + 3)/3 := 33 + 3 × 3 × 33 := 33 + (33+3 + 33)/3 := 4 + 44/4 + 44 := 4 + 4 × 4 + 44 := 4 + 4 × 4 + 44 + 4/4 + 4 := 5/5 + 5 × 55 − 5 := 5 × 55 + 5/5 := 5 + 5 × 55 + 5/5 := 66 + 6 × 6 × 6 − 66/6 := 66 + 6 × 6 × 6 − 6 := 66 + 6 × 6 × 6 − 6/6 := 7 + 7 × 7 × 7 − (7 + 7)/7 − 77 := 7 + (7 × 7 × 77 − 7)/(7 + 7) := 7/7 + 7 × (7 × 7 − 7) − 7 − 7 := 8 + (8 + 8) × (8 + 8) − 8/8 + 8 := 8 + (8 × 8 × 8 + 8) × 8/(8 + 8) + 8 := 8/8 + 8 × (8 + 8 + 8) + 88 := (99/9 + 9 × 9) × (9 + 9 + 9)/9 := 9 + 99/9 + 9 × (9 + 9) + 99 := 9 + 9 × (9 + 9) + 99 + 9/9 Ï 272 := (1 + 1 + 11) × (11 + 11 − 1) − 1 Ï 277 := 1 + (1 + 11) × (1 + 11 + 11) Ï 281 := 1 + 111 + (1 + 1 + 11)1+1 Ï 282 := (1 + 1) × ((1 + 11)1+1 − 1 − 1 − 1) := 22+2 + 22×(2+2) := ((22 + 2)2 − 22)/2 := 2 + 22×(2+2) + 22 + 2 := 3 + (33+3 − 3)/3 + 33 := 33 + (33+3 + 3)/3 := 3 + 3 × (3 × (33 + 3) + 3) := 4 × 4 + 44 := 4 + 4 × 4 + 44 + 4/4 := 4 + 44 × 4/(4 + 4) + 44 := 5 × 55 + (5 + 5)/5 − 5 := 5 × 55 + (5 + 5)/5 := 5 + 5 × 55 + (5 + 5)/5 := 6 + (6/6 + 6) × ((6 + 6)/6 + 6 × 6) := 66 + 6 × 6 × 6 − 6 + 6/6 := 66 + 6 × 6 × 6 := 7 + 7 × 7 × 7 − 7/7 − 77 := 7 + (7 × 7 × 77 + 7)/(7 + 7) := 77 + ((7 + 7)/7)7 + 77 := 8 + (8 + 8) × (8 + 8) + 8 := (8 − 8/8 + 8) × (88/8 + 8) − 8 := 88 + 8 × (8 + 8 + 8) + (8 + 8)/8 := 99 + 99/9 + 9 × (9 + 9) := 99 + 99 − (9 + 9)/9 + 9 × 9 := 9 + 999/9 + 9 × (9 + 9) 28 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 283 := (1 + 1) × ((1 + 11)1+1 − 1 − 1) − 1 Ï 288 := (1 + 1) × (1 + 11)1+1 Ï 293 := 1 + (1 + 1) × (1 + 1 + 1 + 11)1+1 := ((22 + 2)2 − 2)/2 − 2 − 2 := (22 + 2)2 /2 := 2 + (22+2 + 2/2)2 + 2 := 3 + (3/3 + 3)3 + (3 + 3)3 := 3 × (3 × 33 − 3) := 3 × 3 × 33 − 3/3 − 3 := 4 × 4 + 44/4 + 44 := 4 + 4 × (4 + 4) := 4 + 4 × (4 + 4) + 44 + 4/4 := 5 + 5 × 55 − (5 + 5)/5 + 5 := (55 + 5)/(5 + 5) − 5 × 5 := 5 + (55 + 5)/(5 + 5) − 5 × 5 := 66 + 6 × 6 × 6 + 6/6 := 6 × (6 × 6 + 6 + 6) := 6 + 6 × (6 × 6 + 6 + 6) − 6/6 := 7 × (7 × 7 − 7) − 77/7 := 7/7 + 7 × (7 × 7 − 7) − 7 := 7 × (7 × 7 − 7) − 7/7 := 8 + 8 + (8 + 8) × (8 + 8) + 88/8 := 8 + 8 × (8 + 8 + 8) + 88 := 8 + (8 − 8/8 + 8) × (88/8 + 8) := 9 + (99 + 99) + 9 × 9 := ((9 + 9 + 9) × (99 − 9/9) − 9)/9 9−9/9 := 9 + ((9 + 9)/9) 4 +9+9 Ï 284 := (1 + 1) × ((1 + 11)1+1 − 1 − 1) Ï 289 := 1 + (1 + 1) × (1 + 11)1+1 Ï 294 := (1 + 1) × (1 + 1 + 1 + (1 + 11)1+1 ) := 2 × ((2 × (2 + 2 + 2))2 − 2) := (22+2 + 2/2)2 := 2 + (22 + 2)2 /2 + 2 + 2 := (3/3 + 3) × ((3 + 3)3 − 3)/3 := 3/3 + 3 × (3 × 33 − 3) := 3 × 3 × 33 − 3 4 := 44 + 44 − 4 × 4 := 44 + 4 − 44/4 := 44 + 44 − (4 + 4)/4 − 4 := 5 + 5 × 55 − 5/5 + 5 := 5 × (55 + 5) − 55/5 := 5 × (55 + 5) − 5/5 − 5 := 66 + 6 × 6 × 6 + (6 + 6)/6 := 6/6 + 6 × (6 × 6 + 6 + 6) := 6 + 6 × (6 × 6 + 6 + 6) := (7 − 77)/7 + 7 × (7 × 7 − 7) := (7 + 7)/7 + 7 × (7 × 7 − 7) − 7 := 7 × (7 × 7 − 7) := (8 × (8 × 8 + 8) − 8) × 8/(8 + 8) := (8/8 + 8 + 8)(8+8)/8 := 8 + 8 × 8 + (8 + 8) × 888/(8 × 8) := 9 × (9 + 9) + (999 + 99)/9 := (9 + 9 − 9/9)(9+9)/9 := ((9 + 9 + 9)/9) × (99 − 9/9) Ï 285 := (1 + 1) × 11 × (1 + 1 + 11) − 1 Ï 290 := (1 + 1) × (1 + (1 + 11)1+1 ) Ï 295 := 11 × (1 + 1 + 1)1+1+1 − 1 − 1 := 2 + (22+2 + 2/2)2 + 2 + 2 := ((22 + 2)2 − 2)/2 − 2 := 2 + (22 + 2)2 /2 := 3 × (3 × 33 − 3) − 3 := 3 + 3 × (3 × 33 − 3) − 3/3 4 := 3/3 + 3 × 3 × 33 − 3 := 44 + 44 − 4/4 − 4 := 44 + 4/4 − 4 × 4 + 44 := 44 + (4 − 44)/4 + 4 := 5 + 5 × 55 + 5 := 5 + (5 × 55 + 5) + 5 := 5 × (55 + 5) − 5 := 6 × 66 − 666/6 := (6 + 6)/6 + 6 × (6 × 6 + 6 + 6) := 6 + 6 × (6 × 6 + 6 + 6) + 6/6 := 7 × (7 × 7 − 7) − (7 + 7)/7 − 7 := 7 + 7 × (7 × 7 − 7) − 77/7 := 7/7 + 7 × (7 × 7 − 7) := (8 − 8/8 + 8) × (88/8 + 8) := 8/8 + (8/8 + 8 + 8)(8+8)/8 := 8 + 88 + 88 + 888/8 := (99 − 9/9) × (9 + 9 + 9)/9 − 9 := (9/9 + 9) × (99/9 + 9 + 9) := (99 × (9 + 9 + 9) − (9 + 9))/9 Ï 286 := (1 + 1) × 11 × (1 + 1 + 11) Ï 291 := 1 + (1 + 1) × (1 + (1 + 11)1+1 ) Ï 296 := 11 × (1 + 1 + 1)1+1+1 − 1 := 22 × (22/2 + 2) := 2 + (22+2 + 2/2)2 := 2 × ((2 × (2 + 2 + 2))2 + 2 + 2) := 33/3 × (33 − 3/3) := 3 + 3 × (3 × 33 − 3) := 3 × 3 × 33 − 3/3 := 44 + 44 × 44/(4 + 4) := 4 + 4 × (4 + 4) − 4/4 + 44 := 44 + 44 − 4 := 5 × 55 + 55/5 := 5 + 5 × 55 + 55/5 := 5/5 + 5 × (55 + 5) − 5 := 6 + ((6 + 6)/6) + 6 × 6 × 6 := 6 + 6 × 66 − 666/6 := ((6 + 6)/6 + 6) × (6 × 6 + 6/6) := 7 × (7 × 7 − 7) − 7/7 − 7 := 7 × (7 × 7 − 7) − (7 + 7 + 7)/7 := (7 + 7)/7 + 7 × (7 × 7 − 7) := 8 × 8 + (8 + 8) × 888/(8 × 8) := 88 + 8 × (8 + 8 + 8) + 88/8 := 8 × 888/(8 + 8 + 8) := 99 × (9 − 9/9 + 9 + 9)/9 := 99 + 9 × 9 + 999/9 := (99 × (9 + 9 + 9) − 9)/9 6 Ï 287 := (1 + 1) × (1 + 11)1+1 − 1 Ï 292 := (1 + 1) × (1 + 1 + (1 + 11)1+1 ) Ï 297 := 11 × (1 + 1 + 1)1+1+1 := ((22 + 2)2 − 2)/2 := 2 + (22 + 2)2 /2 + 2 := ((22 + 2)2 + 22)/2 − 2 := 3 × (3 × 33 − 3) − 3/3 := 3 + 3 × (3 × 33 − 3) + 3/3 := 3 × 3 × 33 4 := 44 + 44 + 4/4 − 4 4 := 4 + 4 × (4 + 4) − 4/4 := 4 + 4 × (4 + 4) + 4 := 5 × 55 + (55 + 5)/5 := 5 + (55 + 5)/5 + 5 × 55 6 := 5 × 55 + (55 + 55)/5 := 6 × (6 × 6 + 6 + 6) − 6/6 := 6 + ((6 + 6)/6) + 6 × 6 × 6 + 6 := 6 × 6 × 66/(6 + (6 + 6)/6) := 7 × (7 × 7 − 7) − 7 := 7 × (7 × 7 − 7) − (7 + 7)/7 := 7 × (7 × 7 − 7) + (7 + 7 + 7)/7 := 88 + 88 + 888/8 := (8 × (8 × 8 + 8) + 8) × 8/(8 + 8) := 8 + (8/8 + 8 + 8)(8+8)/8 := (99 × (9 + 9 + 9) − 9)/9 − 9 := 99 + 9 × 9 + (999 + 9)/9 := 99 + 99 + 99 29 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 298 := 1 + 11 × (1 + 1 + 1)1+1+1 := 2 × 22 + 2 2×(2+2) −2 Ï 303 := (1 + 1 + 1) × (1 + (11 − 1)1+1 ) := 222 + (2/2 + 2) := 3 + (3 × 3 × 33 + 3) := 3/3 + 3 × 3 × 33 Ï 308 := (1 + 1) × 11 × (1 + 1 + 1 + 11) := 22 × (22+2 − 2) 2+2 := 33/3 + 3 × 3 × 33 := 4 + 44 + 44 + 4 4 := 44 + 44 − (4 + 4)/4 := 4 + 44 − 4/4 + 4 := 55 + (5 − (5 + 5)/5)5 := (55 + 5)/(5 + 5) − 5 − 5 := (55 + 5)/(5 + 5) − 5 := (66 − 6)/6 + 6 × (6 × 6 + 6 + 6) := 6 + 6 × 6 × 66/(6 + (6 + 6)/6) := 66 + 66 × 66/(6 + 6 + 6) := 77/7 + 7 × (7 × 7 − 7) − 7 := 7 + 7 × (7 × 7 − 7) + (7 + 7)/7 := 7 + 7 × (7 × 7 − 7) + 7 := (88 × (88/8 + 8 + 8) + 8)/8 := 8 × (8 + 8 + 8) + 888/8 := 88 × (8 × 8 − 8)/(8 + 8) := (99 × (9 + 9 + 9) + 9)/9 := 9 + (99 − 9/9) × (9 + 9 + 9)/9 := 99/9 × (9/9 + 9 + 9 + 9) Ï 299 := 11 + (1 + 1) × (1 + 11)1+1 Ï 304 := 1 + (1 + 1 + 1) × (1 + (11 − 1)1+1 ) 2+2 2 := ((22 + 2)2 + 22)/2 := 2 + (2 := 3 + (3 × 3 × 33 − 3/3) := 3 + 3 × 3 × 33 + 3/3 + 3 4 + 2) − 22 Ï 309 := 1 + (1 + 1) × 11 × (1 + 1 + 1 + 11) := 22 + ((22 + 2)2 − 2)/2 := 3 + 3 × (3 × 33 + 3) := 44 + (44 − 44)/4 4 := 44 + 4 − 4/4 := 4 + 44 + 4 := 5 × (55 + 5) − 5/5 := 5 + 5 × (55 + 5) − 5/5 := 5 + (5 × (55 + 5) − 5/5) + 5 := 66/6 + 6 × (6 × 6 + 6 + 6) := ((6 + 6)/6 + 6) × ((6 + 6)/6 + 6 × 6) := 66 + (6 × 6/(6 + 6))6−6/6 := 7 + (7 × (7 × 7 − 7) − (7 + 7)/7) := (7/7 + 7) × (7 × 7 − 77/7) := 7 + 7 × (7 × 7 − 7) + 7/7 + 7 := (8 × (888 + 8) + 8)/(8 + 8 + 8) := (8 + 8) × (88/8 + 8) := 8/8 + 88 × (8 × 8 − 8)/(8 + 8) := (99 × (9 + 9 + 9) + 9 + 9)/9 := (9 + 9) × (9 + 9) − 99/9 − 9 := 99 + 999/9 + 99 Ï 310 := (1 + 1) × (11 + (1 + 11)1+1 ) Ï 300 := (1 + 1 + 1) × (11 − 1)1+1 Ï 305 := (11 × 111 − 1)/(1 + 1 + 1 + 1) := 2 × 22 + 22×(2+2) := 2 + (2/2 + 2)2+2 + 222 := 2 + 22 × (22+2 − 2) := 3 + 3 × 3 × 33 := 333 − 33 − 3/3 := ((3/3 + 3) + 3)3 − 33 := 44 + 44 := 4 + 44 + 44 + 4/4 := 44 + (44 − 4)/4 + 44 := 5 × (55 + 5) := 5 + 5 × (55 + 5) := 5 + 5 × (55 + 5) + 5 := (6 − 66) × (6/6 − 6) := (6 − 6/6) × (66 − 6 + 6/6) := (6 − 6/6) × ((6 + 6)/6 − 6 + 66) := 7 + 7 × (7 × 7 − 7) − 7/7 := 77/7 + 7 × (7 × 7 − 7) := 7 + 7 × (7 × 7 − 7) + (7 + 7)/7 + 7 := (8 × 8 × 8 + 88) × 8/(8 + 8) := 8/8 + (8 + 8) × (8 + 88/8) := 88 + (8 + 8) × 888/(8 × 8) := (9/9 + 99) × (9 + 9 + 9)/9 := 9 + (99 × (9 + 9 + 9) − 9)/9 := 99 + 99 + (999 + 9)/9 Ï 301 := 1 + (1 + 1 + 1) × (11 − 1)1+1 Ï 306 := (1 + 1) × (11 × (1 + 1 + 1 + 11) − 1) Ï 311 := 1 + (1 + 1) × (11 + (1 + 11)1+1 ) := 2 + ((22 + 2)2 + 22)/2 := 22 × (22+2 − 2) − 2 := 22 + (22+2 + 2/2)2 := 3 + 3 × 3 × 33 + 3/3 := 3 × (3 × 33 + 3) := 3 + 3 × 3 × 33 + 33/3 4 := 4 + 44 + 4 + (4 + 4)/4 := 44 + 44/4 + 44 := 5/5 + 5 × (55 + 5) := 5 + 5 × (55 + 5) + 5/5 := 55/5 + 5 × (55 + 5) := 6/6 + (6 − 66) × (6/6 − 6) := 6 + (6 − 66) × (6/6 − 6) := 6 + (6 − 6/6) × (66 − 6 + 6/6) := 7 + 7 × (7 × 7 − 7) := (7 − 7/7) × (7 × 7 + (7 + 7)/7) := 7 + 7 × (7 × 7 − 7) + (77 − 7)/7 := 44 + 4/4 + 4 4 := 8 + (8 − 8/8 + 8) × (88/8 + 8) + 8 := (8 + 8)/8 + (8 + 8) × (8 + 88/8) := 8 + 888/8 + 8 × (8 + 8 + 8) := 9 × 9 + (99/9 + 9) × 99/9 := (9 + 9) × (9 + 9 − 9/9) := (9 + 9) × (9 + 9) − (99 + 9 + 9)/9 Ï 302 := 1 + 1 + (1 + 1 + 1) × (11 − 1)1+1 Ï 307 := 111 + (1 + 1 + 1 + 11)1+1 2 := (22+2 + 2)2 − 22 := 3 + 3 × 3 × 33 − 3/3 + 3 Ï 312 := (1 + 1) × (1 + 11) × (1 + 1 + 11) := (22 + 2/2) − 222 := (22 + 2) × (22/2 + 2) := 3/3 + 3 × (3 × 33 + 3) := 3 + 3 × (3 × 33 + 3) + 3 := 4 + 44 − 4/4 + 4 + 4 := 4 + 4 + 4 + 44 + 44 := (5 + 5)/5 + 5 × (55 + 5) := (55 − 55)/(5 + 5) := (55 − 5)/(5 + 5) := 6 + ((6 + 6)/6 + 6) × (6 × 6 + 6/6) := 6 + (6 − 66) × (6/6 − 6) + 6/6 := 6 × ((6 + 6)/6)6 − 6 − 6 := 44 + (4 + 4)/4 + 4 4 4 := 7 + 7 × (7 × 7 − 7) + 7/7 := 7 + 7 × (7 × 7 − 7) − 7/7 + 7 := 7 + 7 × (7 × 7 − 7) + 77/7 := (88 − 8/8 + 8 × 8) × (8 + 8)/8 := 88 × (8 × 8 − 8)/(8 + 8) − 8/8 := 8 + (8 + 8) × (88/8 + 8) := (9 × (9 + 9) − 99/9) × (9 + 9)/9 := 9 + (99 × (9 + 9 + 9) + 9)/9 := (9 + 9) × (9 + 9) − (99 + 9)/9 30 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 313 := 1 + (1 + 1) × (1 + 11) × (1 + 1 + 11) := (2 2+2 2 + 2) − 22/2 Ï 318 := (1 + 1 + 1) × (111 − 1) − 1 − 11 := 2 2+2 Ï 323 := 1 + (1 + 1 + 1) × 111 − 11 := ((22+2 + 2)2 ) − 2/2 × (22 − 2) − 2 := 3 + (3/3 + 3 + 3)3 − 33 := 3 + 3 × 33 + (3 + 3)3 := 333 + ((3 − 33)/3) := 4 + (44 − 44)/4 + 44 := 44 + (44 − 4 − 4)/4 := 4 + (((44 − 4)/4) + 44 ) := (55 + 5)/(5 + 5) := 5 + (55 + 5)/(5 + 5) := 5 + ((55 + 5)/(5 + 5) + 5) := 6 × (66 − 6 − 6) − 66/6 := 66 + 6 × (6 × 6 + 6) := (6 × (66 − (6 + 6))) − 6/6 := 7 + 7 × (7 × 7 − 7) + (77 + 7)/7 := 7 × 7 × 7 − 77/7 − 7 − 7 := 7/7 + (7 × 7 × 7 − (7 + 7 + 7)) := 8 + (8 + 8) × (88/8 + 8) + 8/8 := 8 × 8 + (8 + 8) × (8 + 8) − (8 + 8)/8 := (8/8 + 8 + 8) × (88/8 + 8) := (9 + 9) × (9 + 9) − 99/9 := 9 + 999/9 + 99 + 99 := (9 + 9) × (9 + 9) − 9/9 Ï 314 := (1 + 1) × (1 + (1 + 11) × (1 + 1 + 11)) Ï 319 := 11 × ((11 − 1) × (1 + 1 + 1) − 1) Ï 324 := ((1 + 1) × (11 − 1 − 1))1+1 := 2 + (22 + 2) × (22/2 + 2) := 22+2 × (22 − 2) − 2/2 := (22+2 + 2)2 := 3 × 33 + (3 + 3)3 − 3/3 := 333 − 33/3 − 3 := 3 × (3 × (33 + 3)) 4 4 := 4 + (4 − 4 − 4)/4 − 4 := 4 + (4 − 4)/4 := 4 × (4 − 4/4)4 := 5/5 + (55 + 5)/(5 + 5) := 5 + (55 + 5)/(5 + 5) + 5/5 := (5/5 + 5) × (55 − 5/5) := (6 − 6/6) × ((6 + 6)/6) − 6 := 66 + 6 × (6 × 6 + 6) + 6/6 := 6 × (66 − (6 + 6)) := 7 × (7 × 7 + 7) − (7/7 + 77) := 7 + 7 + 7 × (7 × 7 − 7) + 77/7 := (77/7 + 7)(7+7)/7 := 8 + (8 + 8) × (88/8 + 8) + (8 + 8)/8 := 8 × 8 + (8 + 8) × (8 + 8) − 8/8 := ((((8 + 8)/8) + 8) + 8)(8+8)/8 := (9 + 9) × (9 + 9) − 9/9 − 9 := 99/9 × (99/9 + 9 + 9) := (9 + 9) × (9 + 9) 4 6 Ï 315 := ((1 + 1)1+11 − 1)/(1 + 1 + 11) 4 Ï 320 := (11 − 1) × (11 × (1 + 1 + 1) − 1) Ï 325 := 1 + ((1 + 1) × (11 − 1 − 1))1+1 := 222 − (22/2 + 2)2 := 22+2 × (22 − 2) := 2/2 + ((22+2 + 2)2 ) := 3 × (3 × 33 + 3 + 3) := 333 + (3 − 33)/3 − 3 := 3 + (333 − 33/3) := 4 + (4 − 4)/4 − 4 := 4 × 4 × (4 × 4 + 4) := 4 + ((44 + 4)/4 + 44 ) := (5 × 5 + 55 )/(5 + 5) := (5 + 5) × ((5 + 5)/5)5 4 4 := 5 × (55 + 5 + 5) 6 := (666 − 6 × 6) × 6/(6 + 6) := (6 − 6/6) × ((6 + 6)/6) := 6/6 + (6 × (66 − (6 + 6))) := 7 × (7 × 7 + 7) − 77 := (7/7 + 7) × (7 × 7 − (7 + 7)/7 − 7) := 7 × 7 × 7 − (77/7 + 7) := 88/8 + (8 + 8) × (88/8 + 8) := 8 × (8 + 8 + 8 + 8 + 8) := (8/8 + 8 × 8) × ((8 − 88/8) + 8) := (9 + 9) × (9 + 9) − 9 := (9 − 9/9) × (9 × 9 × 9 − 9)/(9 + 9) := 9/9 + (9 + 9) × (9 + 9) Ï 316 := (1 + 1) × ((1 + 1 + 11)1+1 − 11) := 2 × (2 × ((2/2) + 2)2+2 − 2) 3 := (3/3 + 3 + 3) − 3 Ï 321 := (1 + 1 + 1) × 111 − 1 − 11 := 2/2 + (2 3 2+2 × (22 − 2)) Ï 326 := (1 + 1 + 1) × (111 − 1 − 1) − 1 := 2 + ((22+2 + 2)2 ) := 333 − (3 × 3 + 3) := 333 − ((3/3 + 3) + 3) := 44 + (44 + 4)/4 := 4 + ((((44 + 4) + 4)/4) + 44 ) := 5/5 + ((5 + 5) × ((5 + 5)/5)5 ) := 5/5 + (5 × (55 + 5 + 5)) := 6 × (6 × 6 + 6) + ((6 + 6)/6) := 6 × 6 × 6 + (666/6 − 6) := 6 + ((6 − 6/6) × ((6 + 6)/6)6 ) := 7/7 + 7 × (7 × 7 + 7) − 77 := 7 × 7 × 7 − (7/7 + 7 + 7 + 7) := 7 × 7 × 7 + (((7 − 77)/7) − 7) := 8 + 88 × (8 × 8 − 8)/(8 + 8) := 8/8 + (((8 + 8) × (8 + 8)) + 8 × 8) := 8 + ((((8 + 8) × (8 + 8)) − ((8 + 8)/8)) + 8 × 8) := 9/9 + (9 + 9) × (9 + 9) − 9 := (9 + 9) × (9 + 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 + 9) × (9 + 9) := 4 × 4 + 44 + 4 4 := 5 + 5 × (55 + 5) + 55/5 6 Ï 317 := 1 + (1 + 1) × ((1 + 1 + 11)1+1 − 11) 2 := 2 + 22 − (22/2 + 2) 2 := 333 + 33/3 − 33 4 Ï 322 := (1 + 1 + 1) × 111 − 11 := ((2 2+2 + 2) ) − 2 := 333 − (3 + 3) := 333 − 33/3 4 Ï 327 := (1 + 1 + 1) × (111 − 1 − 1) := 2 + (((22+2 + 2)2 ) + 2/2) 2 := 4 + (4 + 4)/4 − 4 := 4 + (((4 + 4) + 4)/4) := 4 + ((((44 − 4)/4) + 44 ) + 4) := 5 + (55 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 5) := 5 + (((55 − 5)/(5 + 5) + 5) + 5) := 66 + 6 × (6 × 6 + 6) − 6/6 := (6 × (66 − (6 + 6))) − (6 + 6)/6 := 6 × 6 × 6 + 666/6 := 7 × 7 × 7 − (7 + 7 + 7) := 7 × 7 × 7 − (((7 + 7)/7 + 7) + 7) := (77/7 + 7) (7+7)/7 −7 4 4 := 8 + 88 × (8 × 8 − 8)/(8 + 8) + 8/8 := 8 × 8 + (((8 + 8) × (8 + 8)) + ((8 + 8)/8)) := 8 + ((((8 + 8) × (8 + 8)) − 8/8) + 8 × 8) := (9 + 9)/9 + (9 + 9) × (9 + 9) − 9 := (9 + 9) × (9 + 9) − (9 + 9)/9 := (9 + 9) × (9 + 9) + ((9 + 9 + 9)/9) 31 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 328 := 1 + (1 + 1 + 1) × (111 − 1 − 1) Ï 338 := (1 + 1) × (1 + 1 + 11)1+1 Ï 333 := (1 + 1 + 1) × 111 := 2 + (((22+2 + 2)2 ) + 2) := 222 + 222/2 := 3/3 + (333 − (3 + 3)) := 333 := 2 × ((22/2 + 2)2 ) := 3 + ((333 − 3/3) + 3) 4 4 := 4 + (4 × (4 − 4/4) ) := 4 + ((4 − 4/4) − 4) := 4/4 + ((4 − 4/4)4 + 44 ) := 5 + (((55 + 5)/(5 + 5) + 5) + 5) := 5 × 5 + ((55 + 5)/(5 + 5) − 5) := 5 × 5 + (55 + 5)/(5 + 5) := 6 × 6 × 6 + (666 + 6)/6 := 666 × 6/(6 + 6) := 6 + (6 × 66 − ((6 + 6)/6)6 ) := 7 × 7 × 7 − (7/7 + 7 + 7) := 7 × 7 × 7 + (7 − 77)/7 := 7 × 7 × 7 + ((7 + 7)/7 − 7) := 8 + (((8 + 8) × (8 + 8)) + 8 × 8) := (88/8 − 8) × 888/8 := 8 × (8 × 8 − 8) + ((8 − 888)/8) := 9 + ((99/9) × (99/9 + 9 + 9)) := 9 + (9 + 9) × (9 + 9) := 9 + (((9 × 9 + 9)/(9 + 9)) + (9 + 9) × (9 + 9)) 4 Ï 329 := (1 + 1 + 1) × (111 − 1) − 1 Ï 334 := 1 + (1 + 1 + 1) × 111 Ï 339 := (1 + 1 + 1) × (1 + 1 + 111) := 2 × (((22/2 + 2)2 ) − 2) := (((22 + 2 + 2)2 ) + 2)/2 := 3/3 + 333 := 3 + (333 + 3) := 444 + ((4 − 444)/4) := (4 × ((4 − 4/4)4 + 4)) − 4/4 := 55 + (5 × 55 − 5/5) := 5 + ((5 × 55 − 5/5) + 55) := ((55 − 55)/5) − 5 × 55 := 6 × 66 − (66 + 6/6) := 6/6 + 666 × 6/(6 + 6) := 6 + 666 × 6/(6 + 6) := 7 × 7 × 7 − (7 + 7) := 7 × 7 × 7 − ((7 + 7)/7 + 7) := 7 + (7 × 7 × 7 − (77/7)) := 8 + ((((8 + 8) × (8 + 8)) + 8/8) + 8 × 8) := (((8 + 8 + 8) × 888/8) + 8)/8 := 8 + (((8/8 + 8 + 8) × (88/8 + 8)) + 8) := (9 + 9) × (9 + 9) + ((9 × 9 + 9)/(9 + 9)) := 9 + ((9 + 9) × (9 + 9) + 9/9) := 9 + ((999 − 9)/((9 + 9 + 9)/9)) := 2 + ((((2 2+2 2 + 2) ) + 2/2) + 2) := 333 − (3/3 + 3) 4 4 := 4 + (((4 + 4)/4 + 4 ) + 4) Ï 335 := 1 + 1 + (1 + 1 + 1) × 111 Ï 340 := 1 + (1 + 1 + 1) × (1 + 1 + 111) := 22 × ((22/2 + 2) + 2) := 2 + (222/2 + 222) := 2 + (2 × ((22/2 + 2)2 )) := 333 − 3 := 3 + (333 − 3/3) := (((3/3 + 3) + 3)3 ) − 3 Ï 330 := (1 + 1 + 1) × (111 − 1) := 4 + (((4 − 4) + 44)/4) := 4 + (((44 + 44 )/4) + 44 ) := 55 + 5 × 55 := 5 + (5 × 55 + 55) := 66 × (6 − 6/6) := (6 − 6/6) × (66 + 6/6) := 7/7 + (7 × 7 × 7 − (7 + 7)) := 7 × 7 × 7 − (7/7 + 7) := 88/8 × ((88 + 88)/8 + 8) := ((8 − 8/8)88/8−8 ) − 8 := ((8 × 88 − 8)/((8 + 8)/8)) − 8 := (999 − 9)/((9 + 9 + 9)/9) := 99/9 + (9 + 9) × (9 + 9) := ((9 − 9/9) + 9) × (99/9 + 9) 4 4 Ï 331 := 1 + (1 + 1 + 1) × (111 − 1) Ï 336 := (1 + 1 + 1) × (1 + 111) := 4 × ((4 − 4/4)4 + 4) := 5 + ((5 × 55 + 55) + 5) := (6 − 6/6) × (((6 + 6)/6) + 66) := 7 × 7 × 7 − (7 + 7 + 7)/7 Ï 341 := 11 + (1 + 1 + 1) × (111 − 1) := 222 + (222/2 − 2) := 2 × (2 × (2 × ((2 × 22) − 2))) := 2 + ((((22 + 2 + 2)2 ) + 2)/2) := 3/3 + (333 − 3) := 3 + 333 := 3 × 3 + (333 − 3/3) := 4 × ((4 × (4 × 4 + 4)) + 4) := 4 + ((4 − 4/4)4 + 44 ) 4 4 := 4 + ((44 + 4 )/4) := 55 + (5 × 55 + 5/5) := (5/5 + 5) × (55 + 5/5) := 6/6 + 66 × (6 − 6/6) := 6 + 66 × (6 − 6/6) := 7 × 7 × 7 − (77 + 7)/7 := 7 × 7 × 7 − 7 := 6 + ((6 − 6/6) × (66 + 6/6)) := 8 + ((8/8 + 8 + 8) × (88/8 + 8)) := 88 + (((8 + 8) × (8 + 8)) − 8) := 9 + ((9 + 9) × (9 + 9) − ((9 + 9)/9)) := (9 + 9) × (9 + 9) + (99 + 9)/9 Ï 332 := (1 + 1 + 1) × 111 − 1 := 5 + ((5/5 + 5) × (55 + 5/5)) Ï 337 := 1 + (1 + 1 + 1) × (1 + 111) := 7 × 7 × 7 − (7 + 7)/7 := 8 + ((88/8 − 8) × 888/8) := 9 + (((9 + 9) × (9 + 9) − 9/9) + 9) Ï 342 := (1 + 1 + 1) × (1 + (1 + 1 + 111)) := 2 + (22 × ((22/2 + 2) + 2)) := (((22 + 2 + 2)2 ) − 2)/2 := 2 × (((22/2 + 2)2 ) + 2) := 333 − 3/3 := 3 + (333 + 3/3) := 3 × 3 + 333 := 4 + ((4 × (4 − 4/4)4 ) + 4) := 5 × 5 + (55 − 55)/(5 + 5) 4 4 := 4 + (4 − 4/4) := (4 − 44)/4 + ((4 + 4) × 44) 5 := 5 × 5 + (5 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 5 × 5) := 6 × 66 − ((6 + 6)/6) := 6 + (66 × (6 − 6/6) + 6/6) := 6 + (66 × (6 − 6/6) + 6) := 7 × 7 × 7 − 77/7 := 7/7 + (7 × 7 × 7 − 7) := 7 × 7 × 7 − 7/7 := 8 + (((((8 + 8)/8) + 8) + 8)(8+8)/8 ) := 8 × (8 × 8 − 8) − 888/8 := 88 + (((8 + 8) × (8 + 8)) − ((8 + 8)/8)) := 9 + ((9 + 9) × (9 + 9) − 9/9) := 9 × 9 + (((9 + 9)/9)9−9/9 ) := 9 + ((9 + 9) × (9 + 9) + 9) 6 32 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 343 := 11 + (1 + 1 + 1) × 111 − 1 Ï 348 := 1 + 11 + (1 + 1 + 1) × (1 + 111) Ï 353 := 1 + 11 × (11 × (1 + 1 + 1) − 1) := 2 × ((2 × 2 × 2 × 22) − 2) := 2/2 + (22 × 22+2 ) := ((3/3 + 3) + 3)3 := 3 + ((333 + 3 × 3) + 3) := 3 × 3 + (333 + 33/3) := ((4 − 4/4) + 4)4−4/4 := ((4 + 4) × 44) − 4 := 4/4 + ((4 + 4) × 44) := 5 + ((55 + 5)/(5 + 5) + 5 × 5) := (5 − 5 − 5)/5 − 5 × 55 := ((55 × ((5 + 5)/5)5 ) + 5)/5 := 6 × (((6 + 6)/6)6 − 6) := 6 × (66 − 6) − 6/6 − 6 := 222 + (22/2) 2 := (6/6 + 6)6×6/(6+6) := 7 × 7 × 7 := (8 − 8/8)88/8−8 := 9 + (((9 + 9) × (9 + 9) + 9/9) + 9) Ï 344 := 11 + (1 + 1 + 1) × 111 := 2 × (2 × (2 × 2 × 22 − 2)) 5 := 7 + (7 × 7 × 7 − ((7 + 7)/7)) := 7 × 7 × 7 + (77 − 7)/7 := (8 × 88 − 8)/((8 + 8)/8) := 8/8 + (8 × (88/((8 + 8)/8))) := ((99 + 9)/9) × (99/9 + 9 + 9) := 9 + (((9 + 9) × (9 + 9) + (99/9)) + 9) Ï 349 := 11 + (1 + 1) × (1 + 1 + 11)1+1 := (22 × 2 2+2 Ï 354 := 1 + 1 + 11 × (11 × (1 + 1 + 1) − 1) := 2 + (22 × 22+2 ) ) − 2/2 − 2 := 333 + 33/3 := 3 + ((((3/3 + 3) + 3)3 ) + 3) := 3 + (333 + (3 × (3 + 3))) := 44 + (44 + 44 ) := 4/4 + (((4 + 4) × 44) − 4) := (4 + 4)/4 + ((4 + 4) × 44) := (55 − 5)/5 − (5 × 55 + 5) := (5 − 5)/5 − 5 × 55 := 5 + ((55 − 5)/5 − 5 × 55) := 6 + ((6 × 66 − ((6 + 6)/6)6 ) + 6) := 6 × (66 − 6) − 66/6 := 6 × (66 − 6) − 6 := 7 + (7 × 7 × 7 − 7/7) := 7 × 7 × 7 + 77/7 := 8/8 + ((8 × 88 − 8)/((8 + 8)/8)) := (8 + 8)/8 + (8 × (88/((8 + 8)/8))) := 9 + (((9 − 9/9) + 9) × (99/9 + 9)) := 9 × (9 + 9 + 9) + 999/9 := 7/7 + 7 × 7 × 7 := 88 + ((8 + 8) × (8 + 8)) := 9 + ((9 + 9) × (9 + 9) + (99/9)) Ï 345 := 1 + 11 + (1 + 1 + 1) × 111 5 Ï 350 := 11 + (1 + 1 + 1) × (1 + 1 + 111) 2+2 Ï 355 := 11 + 11 + (1 + 1 + 1) × 111 := 2 + ((22 × 22+2 ) + 2/2) := 2 + ((22/2)2 + 222) := (22 × 2 := 3 + (333 + 3 × 3) := 3 + ((333 + 33/3) + 3) := 3 + ((((3/3 + 3) + 3)3 ) + 3 × 3) := 4 + (((4 − 4/4)4 + 44 ) + 4) := ((4 + 4) × 44) − (4 + 4)/4 := 4 + (((4 + 4) × 44) − 4/4) := 5 × ((55 + 5 + 5) + 5) := 55 + (5 × (55 + 5)) := 55 − (5 × 555 + 5) )−2 6 := 6 + (666 × 6/(6 + 6) + 6) := 7 × 7 × 7 + (7 + 7)/7 := 8/8 + (((8 + 8) × (8 + 8)) + 88) := 9 + ((9 + 9) × (9 + 9) + ((99 + 9)/9)) Ï 346 := 1 + 1 + 11 + (1 + 1 + 1) × 111 := (6 − 6/6) × (((6 + 6)/6) + 6) := 6/6 + (6 × (66 − 6) − 6) := 7 + 7 × 7 × 7 := 7 × 7 × 7 + (77 + 7)/7 := ((8 + 8)/8) × (888/8 + 8 × 8) := 88 + (((8 + 8) × (8 + 8)) + (88/8)) := (((9 + 9)/9)9 ) − 9 × (9 + 9) := 99 + (((9 + 9)/9)9−9/9 ) Ï 351 := 11 × (11 × (1 + 1 + 1) − 1) − 1 Ï 356 := (1 + 1 + 1) × (111+1 − (1 + 1)) − 1 := 22 + ((22+2 + 2)2 ) := (22 × 22+2 ) − 2/2 := 2 + ((22 × 22+2 ) + 2) := 3 + (((3/3 + 3) + 3)3 ) := 3 × (3 × (33 + 3 + 3)) := 33 + (333 − (3/3 + 3)) := ((4 + 4) × 44) − 4/4 := 4 + ((4 + 4) × 44) := ((4 + 4) × 44) − ((4 + 4)/4 + 4) := (55 + 5)/5 − (5 × 55 + 5) := 6 + ((6 − 6/6) × (((6 + 6)/6) + 66)) := 7 × 7 × 7 + (7 + 7 + 7)/7 := 88 + (((8 + 8) × (8 + 8)) + ((8 + 8)/8)) 9−9/9 := 9 + ((((9 + 9)/9) ) + 9 × 9) Ï 347 := 11 + (1 + 1 + 1) × (1 + 111) 5 := (5 + 5)/5 − 5 × 55 := 5 + ((55 + 5)/5 − 5 × 55) := (666 + 6 × 6)/((6 + 6)/6) := (6 + 6)/6 + (6 × (66 − 6) − 6) := 7 + (7 × 7 × 7 + 7/7) := 7 + ((7 × 7 × 7 − 7/7) + 7) := 8 + ((8 − 8/8)88/8−8 ) := (8 × 88 + 8)/((8 + 8)/8) := 9 + (((9 + 9) × (9 + 9) + 9) + 9) := (((9 × 9 × 9 × 9) + 9)/(9 + 9)) − 9 Ï 352 := 11 × (11 × (1 + 1 + 1) − 1) Ï 357 := (1 + 1 + 1) × (111+1 − 1 − 1) := 2 + (((22/2)2 + 222) + 2) := 22 × 22+2 := (2/2 + 2) × ((22/2)2 − 2) := 3 + (333 + 33/3) := 3 × 3 + (((3/3 + 3) + 3)3 ) := 33 + (333 − 3) := (4 + 4) × 44 := 4 + (((4 + 4) × 44) + 4/4) := ((4 + 4) × 44) − (4/4 + 4) 5 := 55/5 × ((5 + 5)/5) := 5 + (55/5 × ((5 + 5)/5)5 ) := 6 × (66 − 6) − (6/6 + 6 + 6) := 6 × (66 − 6) − ((6 + 6)/6 + 6) := 66 × 66/(6 + 6) − 6 := 7 × 7 × 7 + (77/7 − 7) := 7 + (7 × 7 × 7 + ((7 + 7)/7)) := 7 + (7 × 7 × 7 + 7) := ((8 × 88 − 8)/((8 + 8)/8)) − 8/8 := 8 × (88/((8 + 8)/8)) := 8/8 + ((8 × 88 + 8)/((8 + 8)/8)) := 9 × 9 × (9 + 9) − 9999/9 := ((9/9 + 9 + 9)(9+9)/9 ) − 9 := ((9 − 9/9) + 9) × (((99 + 9)/9) + 9) 5 := (55/5 × ((5 + 5)/5) ) − 5 33 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 358 := 1 + (1 + 1 + 1) × (111+1 − (1 + 1)) Ï 368 := 1 + 1 + (1 + 1 + 1) × (1 + 111+1 ) Ï 363 := 11 × 11 × (1 + 1 + 1) := 2 + (((22 × 22+2 ) + 2) + 2) := 2 + ((22 − (2/2 + 2))2 ) := 2 × (2 × (2 × ((2 × 22) + 2))) := 33 + ((333 − 3) + 3/3) := 33 × 33/3 := 3 + (((33 × 33 − 3)/3) + 3) := 4 + (((4 + 4) × 44) + (4 + 4)/4) := 4 + (444/4 − 4) := 4 × (44 + 44 + 4) := 5 + (((55 × ((5 + 5)/5)5 ) + 5)/5) := 55 + ((55 + 5)/(5 + 5) − 5) := 55 + (55 + 5)/(5 + 5) := 6 × (66 − 6) − (6 + 6)/6 := 66 × 66/(6 + 6) := 6 + (6 × (66 − 6) + ((6 + 6)/6)) := 7 + ((7 × 7 × 7 + 7/7) + 7) := 7 + (((7 × 7 × 7 − 7/7) + 7) + 7) := 7 + ((7 × 7 × 7 + (77/7)) + 7) := 8 × (8 × 8 − 8) − ((8 + 8)/8 + 88) := 88/8 + (8 × (88/((8 + 8)/8))) := 8 + (8 × (8 × 8 − 8) − 88) := ((9 + 9)/9) × ((9 × 9 − 9/9) + 99) := (99 × 99)/(9 + 9 + 9) := 9 + (((((9 + 9)/9)9 ) − 9 × (9 + 9)) + 9) Ï 359 := (1 + 1 + 1) × (111+1 − 1) − 1 4 Ï 364 := 1 + 11 × 11 × (1 + 1 + 1) Ï 369 := (1 + 1 + 1) × (1 + (1 + 111+1 )) := ((22 − (2/2 + 2))2 ) − 2 := 2 × ((2 × (2 × 2 × 22 + 2)) + 2) := (2/2 + 2) × ((22/2)2 + 2) := 33 + (333 − 3/3) := (33 × 33 + 3)/3 := 3 + (333 + 33) := 4 + ((((4 + 4) × 44) − 4/4) + 4) := 4 + ((((4 + 4) × 44) + 4) + 4) := (4/4 + 4)4 − 44 := (5/5 + 5) × (55 + 5) − 5/5 := (5 × (5 × (5 + 5 + 5))) − 55/5 := (5 × (5 × (5 + 5 + 5))) − (5/5 + 5) := 6 × (66 − 6) − 6/6 := 6 + (6 × (66 − 6) − ((6 + 6)/6)) := 6 + 66 × 66/(6 + 6) := 7 + ((7 × 7 × 7 + ((7 + 7)/7)) + 7) := 7 + (7 × 7 × 7 + 7 + 7) := 7 + (((77 + 7)/7 + 7 × 7 × 7) + 7) := 8 × (8 × 8 − 8) − (8/8 + 88) := 8 + ((8 × 88 + 8)/((8 + 8)/8)) := 8 + ((88/8 + 8)(8+8)/8 ) := 9 + ((((9 + 9)/9)9 ) − 9 × (9 + 9)) := ((9 × 9 × 9 × 9) − 9)/(9 + 9) := 9 + ((9 + 9) × (99/9 + 9)) Ï 360 := (1 + 1 + 1) × (111+1 − 1) Ï 365 := 1 + 1 + 11 × 11 × (1 + 1 + 1) 2 := 2 × (2 × (2 × 2 × 22 + 2)) Ï 370 := (1111 − 1)/(1 + 1 + 1) := 2 + (((22 − (2/2 + 2)) ) + 2) := 2 + (2 × (2 × (2 × ((2 × 22) + 2)))) := 3 + 333 := 3 + ((33 × 33 − 3)/3) := 33 + (((3/3 + 3) + 3)3 ) := 4 + (((4 + 4) × 44) + 4) := (4/4 + 4)4 − (44 + 4) := 4 + ((444 − 4)/4 + 44 ) := (5/5 + 5) × (55 + 5) := 5 + (5/5 + 5) × (55 + 5) := (5 × (5 × (5 + 5 + 5))) − 5 := 6 × (66 − 6) := 6 + (6 × (66 − 6) − 6/6) := 6 × (66 − 6) + (66 − 6)/6 := 7 + (((77 − 7)/7) + 7 × 7 × 7) := 7 + (((7 × 7 × 7 + 7/7) + 7) + 7) := 77 + (7 × (7 × 7 − 7) − 7/7) := 8 × (8 × 8 − 8) − 88 := 888 − (8 × 8 × 8 + 88/8) := (8888 − 8)/(8 + 8 + 8) := (9 + 9) × (99/9 + 9) := ((9 × 9 × 9 × 9) + 9)/(9 + 9) := 9 + ((9/9 + 9 + 9)(9+9)/9 ) 3 Ï 361 := (((1 + 1) × (11 − 1)) − 1)1+1 := (22 − (2/2 + 2))2 3 := 3 + (333 + 3/3) Ï 366 := (1 + 1 + 1) × (1 + 111+1 ) Ï 371 := 1 + (1111 − 1)/(1 + 1 + 1) := 222 + ((2 × (2 + 2 + 2))2 ) := 222 − (222/2 + 2) := 33 + 333 := 33 + (333 + 33/3) 4 := 4 + ((((4 + 4) × 44) + 4/4) + 4) := 4 + (444 − 4)/4 := 5/5 + (5/5 + 5) × (55 + 5) := 4 + (444/4 + 44 ) := (5/5 + 5) × ((55 + 5/5) + 5) := 6/6 + 6 × (66 − 6) := 5/5 + ((5 × (5 × (5 + 5 + 5))) − 5) := 6 + 6 × (66 − 6) := 7 + (7 × 7 × 7 + (77/7)) := 66/6 + 6 × (66 − 6) := 7 + (((7 × 7 × 7 + ((7 + 7)/7)) + 7) + 7) := (88/8 + 8)(8+8)/8 := 77 + 7 × (7 × 7 − 7) := ((8 + 8) × (8 + 8)) + ((888 − 8)/8) := (9/9 + 9 + 9)(9+9)/9 := (8 − 8/8) × (8 × 8 − 88/8) := 9/9 + (((9 × 9 × 9 × 9) + 9)/(9 + 9)) := 99/9 + ((9 + 9) × (99/9 + 9)) Ï 367 := 1 + (1 + 1 + 1) × (1 + 111+1 ) Ï 362 := 11 × 11 × (1 + 1 + 1) − 1 Ï 372 := 1 + 1 + (1111 − 1)/(1 + 1 + 1) := 2 + (2 × (2 × (2 × 2 × 22 + 2))) := 222/2 + 22×(2+2) := 2 × ((2 × (2 × ((2 × 22) + 2))) + 2) := (33 × 33 − 3)/3 := 3 + ((33 × 33 + 3)/3) := 44 + ((444 − 4)/4 − 4) := 3 + ((333 + 33) + 3) := 44 + 444/4 := 4 + (((4 + 4) × 44) + 4 × 4) 5 5 := 55 + (5 − 55)/(5 + 5) := 55 + (5 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 55) := (6 + 6)/6 + 6 × (66 − 6) := 6 + (6 × (66 − 6) + 6/6) := 6 + (6 × (66 − 6) + 6) := 7 + ((77 + 7)/7 + 7 × 7 × 7) := 7 + ((((77 − 7)/7) + 7 × 7 × 7) + 7) := 7/7 + (7 × (7 × 7 − 7) + 77) := 8/8 + ((88/8 + 8)(8+8)/8 ) := 888/8 + ((8 + 8) × (8 + 8)) := 8 + (((8 × 88 + 8)/((8 + 8)/8)) + 8) := 9 + (((9 + 9)/9) × ((9 × 9 − 9/9) + 99)) := 9 + ((99 × 99)/(9 + 9 + 9)) := 9/9 + ((9/9 + 9 + 9) (9+9)/9 ) 34 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 378 := 1 + 11 + (1 + 1 + 1) × (1 + 111+1 ) Ï 373 := (11 + 11)1+1 − 111 2 Ï 383 := (1 + 11) × (11 × (1 + 1 + 1) − 1) − 1 := 22 − 222/2 := (22 − 2) − 22 := 22 + ((22 − (2/2 + 2))2 ) := 3 + ((((3/3 + 3) + 3)3 ) + 33 ) := 3 × (3 × 33 + 33 ) := ((3 + 3) × ((3/3 + 3)3 )) − 3/3 := 4 + ((4/4 + 4)4 − 44 ) := 44 + ((444 + 44)/4) := ((4 + 4) × (44 + 4)) − 4/4 := 5 + ((55 + 5)/(5 + 5) + 55) := ((5 + 5)/5 + 5) × (55 − 5/5) := 5 + (((5 + 5)/5 + 5) × (55 − 5/5)) := 6 + ((6 × (66 − 6) + 6/6) + 6) := 6 × 66 − 6 − 6 − 6 := 6 × 66 − (6/6 + 6 + 6) := 77 + (7 × (7 × 7 − 7) + ((7 + 7)/7)) := 7 × (7 × 7 + 7) − (7 + 7) := 7 × (7 × 7 + 7) − ((7 + 7)/7 + 7) := (8 × (8 × 8 − (8 + 8))) − 88/8 := (8 − (8 + 8)/8) × (8 × 8 − 8/8) := (8 × (8 × 8 − (8 + 8))) − 8/8 := 9 + (((9 × 9 × 9 × 9) − 9)/(9 + 9)) := (9 + 9) × (((99 + 9)/9) + 9) := 9 + ((((9 × 9 × 9 × 9) + 9)/(9 + 9)) + 9) 2 Ï 374 := 11 × (1 + 11 × (1 + 1 + 1)) Ï 379 := (11 − 1) × (1 + 111/(1 + 1 + 1)) − 1 Ï 384 := (1 + 11) × (11 × (1 + 1 + 1) − 1) := 22 + (22 × 22+2 ) := 2/2 + ((22 − 2) − 22) := 22+2 × (22 + 2) := 33/3 × (3/3 + 33) := 3 + ((((3/3 + 3) + 3)3 ) + 33) := (3 + 3) × ((3/3 + 3)3 ) := (44 × (4 × 4 × 4 + 4))/(4 + 4) := 444 − (44 + 4)/4 := (4 + 4) × (44 + 4) := (5 × (5 × (5 + 5 + 5))) − 5/5 := 5 + ((5 × (5 × (5 + 5 + 5))) − 5/5) := ((55 + 5)/5) × ((5 + 5)/5)5 := (66/6) × (6 × 6 − ((6 + 6)/6)) := 6 × 66 − ((66/6) + 6) := 6 × ((6 + 6)/6)6 := 7 × (7 × 7 + 7) − (77/7 + 7) := 7/7 + (7 × (7 × 7 + 7) − (7 + 7)) := (7/7 + 7) × (7 × 7 − 7/7) := 888 − (8 × 8 × 8 + (8 + 8)/8) := 8 + ((8 − 8/8) × (8 × 8 − 88/8)) := 8 × (8 × 8 − (8 + 8)) 2 := 9 + (((9 × 9 × 9 × 9) + 9)/(9 + 9)) Ï 375 := 1 + 11 × (1 + 11 × (1 + 1 + 1)) 2 9 := 9 × 99 − (((9 + 9)/9) ) Ï 380 := (11 − 1) × (1 + 111/(1 + 1 + 1)) := ((9 + 9)/9) × (999/9 + 9 × 9) Ï 385 := 11 × (1 + 1 + 11 × (1 + 1 + 1)) := 2 + (22 − 222/2) := 2 + ((22 − 2) − 22) := 2/2 + (22+2 × (22 + 2)) := 3 × ((3 − 3/3 + 3)3 ) := 3 + ((33/3 × (3/3 + 33)) + 3) := 3/3 + ((3 + 3) × ((3/3 + 3)3 )) := 4 + ((444/4 + 44 ) + 4) := 444 − 4 × 4 × 4 := 4/4 + ((4 + 4) × (44 + 4)) 2 := 5 × (5 × (5 + 5 + 5)) := 5 + (5 × (5 × (5 + 5 + 5))) := 55 × ((5 + 5)/5 + 5) := 6 + (66 × 66/(6 + 6) + 6) := 6 × 66 + (((6 − 66)/6) − 6) := 6 × 66 − 66/6 := 7 + (((7 × 7 × 7 + (77/7)) + 7) + 7) := 7 × (7 × 7 + 7) − (77 + 7)/7 := 7 × (7 × 7 + 7) − 7 := 888 − (8 × 8 × 8 + 8/8) := (8 × (88 + 8) − 8)/((8 + 8)/8) := 8/8 + (8 × (8 × 8 − (8 + 8))) := ((9 + 9) × (9 + 9 + 9)) − 999/9 := (9/9 + 9 + 9) × (99/9 + 9) := 99/9 × ((((9 − 9/9) + 9) + 9) + 9) Ï 376 := 1 + 1 + 11 × (1 + 11 × (1 + 1 + 1)) := (22 − 2)2 − (22 + 2) := 33 + (((3/3 + 3) + 3)3 ) Ï 381 := 11 + (1111 − 1)/(1 + 1 + 1) 2 := 2 + (((22 − 2) − 22) + 2/2) 3 := 3 + (3 × (3 × 33 + 3 )) 4 Ï 386 := 1 + 11 × (1 + 1 + 11 × (1 + 1 + 1)) := 2 + (22+2 × (22 + 2)) := 33+3 − (((3/3 + 3) + 3)3 ) := (4 + 4) × (44 − 4/4 + 4) := 444 + ((4 − 4 )/4) := 44 + ((44 + 4)/((4 + 4)/4)) := 5/5 + (5 × (5 × (5 + 5 + 5))) := 5 + ((5 × (5 × (5 + 5 + 5))) + 5/5) := 5 × 55 + 555/5 := 6 + (6 × (66 − 6) + ((66 − 6)/6)) := 6 + ((66 × 66/(6 + 6) + 6) + 6) := 6 × 66 + (6 − 66)/6 := (7/7 + 7) × 7 × 7 − (7 + 7)/7 := 7 × (7 × 7 + 7) − 77/7 := 7/7 + (7 × (7 × 7 + 7) − 7) := 888 − 8 × 8 × 8 := 8 + ((8 × (8 × 8 − (8 + 8))) − (88/8)) := (8 + 8)/8 + (8 × (8 × 8 − (8 + 8))) := 9 × 9 + ((99 × (9 + 9 + 9) − (9 + 9))/9) := 9 + (((99 × 99)/(9 + 9 + 9)) + 9) := (((9 + 9)/9)9 ) − ((99 + 9 + 9) + 9) Ï 377 := 11 + (1 + 1 + 1) × (1 + 111+1 ) 2 := (22/2) + 2 := (22+2 × (22 + 2)) − 2 2×(2+2) := 3 + (33/3 × (3/3 + 33)) 4 Ï 382 := 1 + 11 + (1111 − 1)/(1 + 1 + 1) 4 := 3333/3 − 3 4 3+3 Ï 387 := 1 + 1 + 11 × (1 + 1 + 11 × (1 + 1 + 1)) := (22 − 2)2 − (22/2 + 2) := 3 + ((3 + 3) × ((3/3 + 3)3 )) 4 := 4 + (((4/4 + 4) − 4 ) + 4) := 4 + ((4 − 4)/((4 + 4)/4)) := 4 + (((4 + 4) × (44 + 4)) − 4/4) := (5 + 5)/5 + (5 × (5 × (5 + 5 + 5))) := 55 /5 − ((5 − (5 + 5)/5)5 ) := 5 × 55 + (555 + 5)/5 := 6 + (6 × (66 − 6) + (66/6)) := 6 × 66 − ((6 + 6)/6 + 6 + 6) := 6 × 66 + (((6 − 66) + 6)/6) := 7 × (7 × 7 + 7) − (7/7 + 7 + 7) := ((7 − 77)/7) + 7 × (7 × 7 + 7) := ((7 + 7)/7) + (7 × (7 × 7 + 7) − 7) := 8/8 + (888 − 8 × 8 × 8) := (8 × (8 × 8 − (8 + 8))) − (8 + 8)/8 := 888 + (88/8 − 8 × 8 × 8) := 9 × 9 + ((99 × (9 + 9 + 9) − 9)/9) := 9999/9 − 9 × 9 × 9 := ((9 + 9) × (9 + 9 + 9)) − 99 35 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 388 := ((1 + 1) × (11 − 1))1+1 − 1 − 11 Ï 393 := (1 + 1 + 1) × (11 × (1 + 11) − 1) Ï 398 := ((1 + 1) × (11 − 1))1+1 − 1 − 1 := 2 × (((22+2 − 2)2 ) − 2) := 2/2 + (2 × ((22+2 − 2)2 )) := (22 − 2)2 − 2 := 3 + (((3 + 3) × ((3/3 + 3)3 )) + 3/3) := (33 × (3 × 3 + 3)) − 3 := 3 + ((33 × (3 × 3 + 3)) − 3/3) := 4 + ((4 + 4) × (44 + 4)) := 4 + ((((4 + 4) × (44 + 4)) + 4/4) + 4) := 444 − ((4 + 4)/4 + 44) := 5 × 55 + (555 + 5 + 5)/5 := 5 × 5 + ((5 + 5)/(5 + 5) + 55) := (5 − 5/5)5 − (55 + 5)/5 := 6 × 66 − ((6 + 6)/6 + 6) := 6 × 66 − 6 × 6/(6 + 6) := (6 + 6)/6 + 6 × 66 5 := ((7 × 777) − 7)/(7 + 7) := 7/7 + 7 × (7 × 7 + 7) := 7 + (7 × (7 × 7 + 7) − 7/7) := (8 × (88 + 8) + 8)/((8 + 8)/8) := 8 + ((8 × (8 × 8 − (8 + 8))) + 8/8) := 8 + ((8 − (8 + 8)/8) × (8/8 + 8 × 8)) := 9 + (9 × 99 − (((9 + 9)/9)9 )) := 9 + (((9 + 9)/9) × (999/9 + 9 × 9)) := ((9 + 9)/9) × ((9/9 + 99) + 99) Ï 389 := ((1 + 1) × (11 − 1))1+1 − 11 Ï 394 := 1 + (1 + 1 + 1) × (11 × (1 + 11) − 1) Ï 399 := ((1 + 1) × (11 − 1))1+1 − 1 := (22 − 2)2 − 2/2 := (22 − 2)2 − 22/2 := 2 + (2 × ((22+2 − 2)2 )) := 33 + ((33 × 33 − 3)/3) := 3/3 + ((33 × (3 × 3 + 3)) − 3) := 3 + (33 × (3 × 3 + 3)) := 4 + (((4 + 4) × (44 + 4)) + 4/4) := 4 + (((4 + 4)/4 + 4) × (4 + 4)/4) := 4 × 44 − (4/4 + 4)4 := 5 × (5 × 5 + 55) − 55/5 := (5 − 5/5)5 − (55 /5 + 5) := (5 − 5/5)5 − 55 /5 := 6 × 66 − 6/6 − 6 := 6 × 66 − (6 + 6)/6 := 6 × 66 + (6 × 6/(6 + 6)) := ((7 × 777) + 7)/(7 + 7) 4 := ((7 + 7)/7) + 7 × (7 × 7 + 7) := 7 + 7 × (7 × 7 + 7) := (((8 − 8/8) × 888) + 8)/(8 + 8) := 8 + ((8 × (8 × 8 − (8 + 8))) + ((8 + 8)/8)) := (8 − 8/8) × ((8/8 − 8) + 8 × 8) := 9 + ((9/9 + 9 + 9) × (99/9 + 9)) := 9 × 9 + ((9 + 9) × (9 + 9) − (99/9)) := (9/9 + 9 + 9) × (((99 + 9)/9) + 9) Ï 390 := 1 + ((1 + 1) × (11 − 1))1+1 − 11 Ï 395 := 11 × (1 + 1 + 1) × (1 + 11) − 1 Ï 400 := ((1 + 1) × (11 − 1))1+1 := (2 × ((22+2 − 2)2 )) − 2 := (22 − 2)2 − (2/2 + 2 + 2) := (22 − 2)2 := 33 + (33 × 33/3) := (33 × (3 × 3 + 3)) − 3/3 := 3 + ((33 × (3 × 3 + 3)) + 3/3) := ((4 + 4)/4 + 4) × (4 + 4)/4 := 44 + (((4 + 4) × 44) − 4/4) := 444 − 44 := 5 + (55 × ((5 + 5)/5 + 5)) := 5 × (5 × 5 + 55) − 5 := 5 × (5 × 5 + 55) := 6 × 66 − 6 := 6 × 66 − 6/6 := 6 + (6 × 66 − ((6 + 6)/6)) := 7 × (7 × 7 + 7) − (7 + 7)/7 := 7 + (((7 × 777) − 7)/(7 + 7)) := 7 + (7 × (7 × 7 + 7) + 7/7) := (8 − (8 + 8)/8) × (8/8 + 8 × 8) := 88/8 + (8 × (8 × 8 − (8 + 8))) := 8 + ((8 × (8 × 8 − (8 + 8))) + 8) 4 := ((9 × 9 × 99) − 999)/(9 + 9) Ï 391 := (1 + 1)11−1−1 − 111+1 9 := (((9 + 9)/9) ) − (99 + 9 + 9) Ï 396 := 11 × (1 + 1 + 1) × (1 + 11) := (99/9 + 9)(9+9)/9 Ï 401 := 1 + ((1 + 1) × (11 − 1))1+1 := 2 + ((22 − 2)2 − 22/2) := 22 × (22+2 + 2) := 2/2 + (22 − 2)2 := 33 + ((33 × 33 + 3)/3) := 33 × (3 × 3 + 3) := 3 + (((33 × (3 × 3 + 3)) − 3/3) + 3) := 444 + ((44 − 4 )/4) := 44 + ((4 + 4) × 44) := 4/4 + (444 − 44) := 5 + (555/5 + 5 × 55) := 5/5 + (5 × (5 × 5 + 55) − 5) := 5/5 + 5 × (5 × 5 + 55) := 6/6 + (6 × 66 − 6) := 6 × 66 := 6 + (6 × 66 − 6/6) := 7 × (7 × 7 + 7) − 7/7 := 7 + (((7 × 777) + 7)/(7 + 7)) := 7 + (7 × (7 × 7 + 7) + ((7 + 7)/7)) := (88 × (8 × 8 + 8))/(8 + 8) := 8 × 8 × 8 − 888/8 := 9 × 9 + ((9 + 9) × (9 + 9) − 9) := (((9 + 9)/9)9 ) − 999/9 4 := 8 + ((8 × (8 × 8 − (8 + 8))) − 8/8) := ((99/9 + 9) (9+9)/9 )−9 Ï 392 := (1 + 1) × (1 + 1 + 1 + 11)1+1 Ï 397 := 1 + 11 × (1 + 1 + 1) × (1 + 11) Ï 402 := 1 + 1 + ((1 + 1) × (11 − 1))1+1 := 2 × ((22+2 − 2)2 ) := (22 − 2)2 − 2/2 − 2 := 2 + (22 − 2)2 := (3/3 + 3) × (3 × 33 − 3/3) := 3/3 + (33 × (3 × 3 + 3)) := 3 + ((33 × (3 × 3 + 3)) + 3) := 4 + (((4 + 4) × (44 + 4)) + 4) := 44 + (((4 + 4) × 44) + 4/4) := 444 + ((4 + 4)/4 − 44) := ((5 + 5)/5 + 5) × (55 + 5/5) := 5 + (((5 + 5)/5 + 5) × (55 + 5/5)) := (5 + 5)/5 + 5 × (5 × 5 + 55) := (6 + 6)/6 + (6 × 66 − 6) := 6/6 + 6 × 66 := 6 + 6 × 66 := 7 × (7 × 7 + 7) := 7 + (7 × (7 × 7 + 7) − ((7 + 7)/7)) := ((77 − 7)/7) + 7 × (7 × 7 + 7) := 8 + (8 × (8 × 8 − (8 + 8))) := 8/8 + ((88 × (8 × 8 + 8))/(8 + 8)) := 8 × 8 × 8 + ((8 − 888)/8) := (9 − 9/9) × ((9 × 99 − 9)/(9 + 9)) := (((9 + 9) × (99 + 99)) + 9)/9 := (((9 + 9)/9)9 ) + ((9 − 999)/9) 36 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 403 := 1 + 1 + 1 + ((1 + 1) × (11 − 1))1+1 := 2 + (22 − 2)2 + 2/2 Ï 413 := 1 + 1 + 11 + ((1 + 1) × (11 − 1))1+1 Ï 408 := 1 + 11 × 111/(1 + 1 + 1) := 2 × (2 + 2) + (22 − 2)2 := 2 + (22 − 2)2 + 22/2 := 3 + (33 × ((3 × 3 + 3) + 3)) := 3 × 33 + (333 − 3/3) := 4 + (4 × 4 − (4/4 + 4) ) := 4 + ((444 − 44) + 4) := 44 + ((4/4 + 4)4 − 44 ) := 5 + ((5 − 5/5)5 − (55 + 5)/5) := (5 × 5 − 5/5) × (((55 + 5)/5) + 5) := 5 × (5 × 5 − 5) + (55 + 5)/(5 + 5) := 6 + (6 × 66 + 6/6) := 6 + (6 × 66 + 6) := 6 + (6 × 66 + (66/6)) := 77/7 + 7 × (7 × 7 + 7) := (7/7 + 7) × ((7 + 7)/7 + 7 × 7) := 77 + (7 × 7 × 7 − 7) := 8 + ((8 × (8 × 8 − (8 + 8))) + (88/8)) := 8 × 8 × 8 − (88 + 8 + 8) := 8 × 8 × 8 − (88/8 + 88) := 9 × 9 + ((9 + 9) × (9 + 9) − ((9 + 9)/9)) := (99 × (9 + 9 + 9) + 999)/9 := (((9 + 9)/9)9 ) − 99 := 3 + (((33 × (3 × 3 + 3)) + 3/3) + 3) 4 4 Ï 404 := (1 + 1) × ((1 + 1) × (1 + (11 − 1)1+1 )) 2 2 := 22/2 + (22 − 2) − 2 := 2 + (22 − 2) + 2 3 := 333 + (((3 + 3) − 3)/3) := 3 + ((3 × ((3 × 3 + 3) + 3)) + 3/3) := 4 + ((4/4 + 4) × (4 − 4/4) ) 5 := 5 + ((5 − 5/5) − 5 /5) := 6 + (((6 + 6)/6) + 6 × 66) 7 5 5 := 5 + (((5 − 5/5) − 5 /5) + 5) := 6 + ((6 × 66 + 6/6) + 6) := 7 × 77 − (((7 + 7)/7) + 7) := 77 + (7 × 7 × 7 − (77/7)) := 8 + ((88 × (8 × 8 + 8))/(8 + 8)) := 8 + (8 × 8 × 8 − 888/8) 9 := (((9 + 9)/9) ) − (99 + 9) Ï 405 := 11 × 111/(1 + 1 + 1) − 1 − 1 Ï 414 := (1 + 1) × (11 + (1 + 1 + 1 + 11)1+1 ) := 2 + 2 × (222 − 22+2 ) 3 4 := 4 + (444 − 44) 5 Ï 409 := 1 + 1 + 11 × 111/(1 + 1 + 1) := 9 + ((99/9 + 9)(9+9)/9 ) Ï 410 := 11 + ((1 + 1) × (11 − 1))1+1 − 1 2 := 3 × 33 + 333 := 4 + ((4 + 4)4 + 4)/((44 − 4)/4) := (5 − 5/5)5 − (555 + 55) := 6 + ((6 × 66 + 6) + 6) := 7/7 + ((7 × 7 × 7 − 7) + 77) := 8 × 8 × 8 + ((8 − 88)/8 − 88) := 9 + ((9 + 9) × (9 + 9) + 9 × 9) Ï 415 := (1 + 1 + 11) × (11 × (1 + 1 + 1) − 1) − 1 := 2 + (22 − 2) + 2/2 + 2 := 2 + (22 − 2) + 2 × (2 + 2) := 2 + (22 − 2)2 + 22/2 + 2 := 33 × ((3 × 3 + 3) + 3) := 3 + 33 × 333/33 := 3/3 + (3 × 33 + 333) 2 4 := (((4 + 4) ) + 4)/((44 − 4)/4) := 44 + (4 × (44 − 4) − 4/4) := 5 + 5 × (5 × 5 + 55) := 5 + (5 × (5 × 5 + 55) + 5) := 5 + ((5 × (5 × 5 + 55) + 5) + 5) := 6 + ((6 × 6/(6 + 6)) + 6 × 66) := 6 + ((((6 + 6)/6) + 6 × 66) + 6) := 6 + (((6 × 66 + 6/6) + 6) + 6) := 7 + ((7 × (7 × 7 + 7) − 7/7) + 7) := 7 + (7 × (7 × 7 + 7) + (77/7)) := 7 + ((7/7 + 7) × ((7 + 7)/7 + 7 × 7)) := 8 × 8 × 8 − ((88/8 + 88) + 8) := 8 + (((8 − 888)/8) + 8 × 8 × 8) := 8 × 8 × 8 − ((8/8 + 88) + 8) := 9 × (((9 + 9 + 9) + 9) + 9) := 9 + ((((9 + 9)/9)9 ) − 999/9) := 9 + (((9 + 9) × (9 + 9) + 9 × 9) + 9/9) := (4/4 + 4) × (4 − 4/4)4 Ï 406 := 11 × 111/(1 + 1 + 1) − 1 2 := 2 + (22 − 2) + 2 + 2 := 3/3 + (33 × ((3 × 3 + 3) + 3)) Ï 411 := 11 + ((1 + 1) × (11 − 1))1+1 := 22/2 + (22 − 2)2 Ï 416 := (1 + 1 + 11) × (11 × (1 + 1 + 1) − 1) := 22+2 + (22 − 2)2 3 := 3 + ((333 − 3/3) + 3 × 33 ) := 3 × 3 + (333 − 3) 4 := 4 + (((4 + 4)/4 − 44) + 444) := 44 + (444/4 + 4 ) := 44 + (4 × (44 − 4)) := 5 + (5 × (5 × 5 + 55) + 5/5) := 55/5 + 5 × (5 × 5 + 55) := (55/5 + 5) × (5 × 5 + 5/5) := 6 × 66 + (66 − 6)/6 := 6 + (((6 × 6/(6 + 6)) + 6 × 66) + 6) := 6 + (((((6 + 6)/6) + 6 × 66) + 6) + 6) 7 := 7 + (7 × (7 × 7 + 7) + 7) := 7 × 77 − ((7 + 7)/7) := ((77 × 77 − 7)/(7 + 7)) − 7 := (8 − 8/8) × ((((8 + 8)/8) − 8) + 8 × 8) := 8 × 8 × 8 − (8888/88) := 8 × 8 × 8 − (88 + 8) := 9/9 + ((9 + 9) × (9 + 9) + 9 × 9) Ï 407 := 11 × 111/(1 + 1 + 1) 2 9 := (((9 + 9)/9) ) − ((9 + 9)/9 + 99) Ï 412 := 1 + 11 + ((1 + 1) × (11 − 1))1+1 2+2 := 9 × 9 + ((9 + 9) × (9 + 9) + (99/9)) Ï 417 := 11 × (1 + 111/(1 + 1 + 1)) − 1 := (22 − 2/2)2 − 22 − 2 := 2 + (22 − 2) + 2/2 + 2 + 2 := 2 × (222 − 2 := 33 × 333/33 := 3/3 + ((3 × 33 − 3) + 333) := 3 + (3 × 33 + 333) := 4 + ((4 × 44 − (4/4 + 4)4 ) + 4) := 444 − 4 × (4 + 4) := 4/4 + (4 × (44 − 4) + 44 ) := 55/5 × (((5 + 5)/5)5 + 5) := 5 + (55/5 × (((5 + 5)/5)5 + 5)) := ((55 + 55 ) + 5)/(5 + 5 + 5) := 6 × 66 + 66/6 := 6 + (((66 − 6)/6) + 6 × 66) := 6 × 66 + ((6 × 6 + 6)/((6 + 6)/6)) := 7 + ((7 × (7 × 7 + 7) + 7/7) + 7) := 77 + (7 × 7 × 7 − (7/7 + 7)) := ((77 × 77 + 7)/(7 + 7)) − 7 := 8888/8 − 8 × 88 := (888 − 8 × 8)/((8 + 8)/8) := 8/8 + (8 × 8 × 8 − (88 + 8)) := 9 × 9 + ((9 + 9) × (9 + 9) + ((9 + 9)/9)) := (((9 + 9)/9)9 ) − (9/9 + 99) := 9 + ((99 × (9 + 9 + 9) + 999)/9) ) 37 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 418 := 11 × (1 + 111/(1 + 1 + 1)) Ï 423 := 1 + (1 + 1) × ((1 + 1) × 111 − 11) 2 Ï 428 := (11 × ((1 + 1 + 1) × (1 + 1 + 11))) − 1 := 22 + ((22 − 2) + 2/2) := 2 × (222 − 2 × (2 + 2)) := 33/3 × (33/3 + 3 ) := 3 × ((3 × (33 + 3)) + 33) := ((((3 + 3)3/3+3 ) − 3)/3) − 3 := 44 + (4 × (44 − 4) + (4 + 4)/4) := 444 − ((4 × 4 + 4/4) + 4) := 444 − 4 × 4 := 22 × (22 − 2/2 − 2) 3 5 := 5 + ((55 + 5)/(5 + 5) + 5 × (5 × 5 − 5)) := 55 + ((5 + 5)/(5 + 5) + 55) := (5 − 5/5) × ((555 + 5)/5 − 5) := 6 × 66 + ((66 + 66)/6) := 66 + (66 × 66/(6 + 6) − 6) := (6 + 6)/6 + ((6 × (66 + 6)) − 6) := 7 + (7 × 77 − ((7 + 7)/7) ) := (77 × 77 − 7)/(7 + 7) := 7 × 77 − 777/7 := 8 × 8 × 8 + (((8 + 8)/8) − (88 + 8)) := 8 × 8 × 8 − (8/8 + 88) := 888/((8 + 8)/8) − 8 − 8 := 9 + (((99/9 + 9)(9+9)/9 ) + 9) := 99 + (9 + 9) × (9 + 9) := (((9 × 9 × 99) + 9)/(9 + 9)) − (9 + 9) 7 Ï 419 := 1 + 11 × (1 + 111/(1 + 1 + 1)) := (22 − 2/2)2 − 22 Ï 424 := (1 + 1) × (1 + ((1 + 1) × 111 − 11)) Ï 429 := 11 × ((1 + 1 + 1) × (1 + 1 + 11)) := (2 × (222 − 2)) − 22/2 2 := 2 + ((22 − 2) + 22) := ((33 + 3) × (33/3 + 3)) − 3/3 := 3 × 3 + (((3/3 + 3) + 3) ) := 33 + (33 × (3 × 3 + 3)) := (44 × 44 − (44 + 4))/4 := 444 − (4 × 4 + 4) := 4/4 + (444 − 4 × 4) := 555 − (555/5 + 5 × 5) := (5 − 5/5) × (555/5 − 5) := 555 − (5 × 5 × 5 + 5/5) := 6 + ((6 × 66 + (66/6)) + 6) := 6 × (66 − 6) + ((6 + 6)/6)6 := 66 + 66 × 66/(6 + 6) := 77 + (7 × 7 × 7 − 7/7) := (77 × 77 + 7)/(7 + 7) := 8 + (8 × 8 × 8 − (8888/88)) := 8 × 8 × 8 − 88 := (((9 × 999) + 9)/(9 + 9)) − 9 × 9 := 9/9 + ((9 + 9) × (9 + 9) + 99) Ï 420 := (1 + 1) × (11 − 1) × (11 + 11 − 1) 3 3 Ï 425 := 1 + (1 + 1) × (1 + ((1 + 1) × 111 − 11)) := 22 + (22 − 2)2 − 2 := ((22 − 2/2)2 ) − 22+2 := (33 + 3) × (33/3 + 3) := (((3 + 3) × ((3 + 3)3 − 3)) − 3)/3 := 4 + (4 × (44 − 4) + 44 ) := 4/4 + (444 − (4 × 4 + 4)) := (55 + 5) × ((5 + 5)/5 + 5) := 5 × (5 × 5 + 55 + 5) := 6 × (((6 + 6)/6)6 + 6) := (6 × (66 + 6)) − 6/6 − 6 := 77 + 7 × 7 × 7 := 7 + ((7 × 77 − ((7 + 7)/7)7 ) + 7) := 88 × 88/(8 + 8) − 8 × 8 := 8/8 + (8 × 8 × 8 − 88) := ((9 + 9)/9) × (999/9 + 99) := 99 + ((9 + 9) × (9 + 9) + ((9 + 9)/9)) Ï 421 := (1 + 1 + 1) × (1 + 11)1+1 − 11 Ï 426 := (1 + 1) × (1 + 1) × (1 + 111) − 11 := 7 × 77 + ((7 − 777)/7) := 8 × (8 × 8 − 8) − (88/8 + 8) := (((9 + 9)/9)9 ) − (((9 + 9)/9) + 9 × 9) Ï 430 := ((11 + 11 − 1)1+1 ) − 11 := 2 + (2 × (222 − 2 × (2 + 2))) := (3 − 3/3) × ((3 + 3)3 − 3/3) := 44 + ((4 × 44) − (4 + 4)/4) := 555 − 5 × 5 × 5 := (6 × (66 + 6)) − (6 + 6)/6 := 7 + ((77 × 77 − 7)/(7 + 7)) := 8 + (8 × 8 × 8 − ((8 + 8)/8 + 88)) := (((9 + 9)/9)9 ) − (9/9 + 9 × 9) Ï 431 := ((1 + 1 + 1) × (1 + 11)1+1 ) − 1 := 2 × 222 − (22/2 + 2) := 2 + (((22 − 2/2)2 ) − 22) := (2 × (222 + 2)) − 22 := (((3 + 3)3/3+3 ) − 33)/3 := (3 + 3) × (((3 + 3)3 − 3)/3) := 44 + ((4 × 44) − 44/4) := 444 − ((4 + 4)/4 + 4 × 4) := 5 + ((55/5 + 5) × (5 × 5 + 5/5)) := 5/5 + (5 × (5 × 5 + 55 + 5)) := 5/5 + (555 − 5 × 5 × 5) := (6 × (66 + 6)) − 66/6 := (6 × (66 + 6)) − 6 := (6 × (66 + 6)) − 6/6 := 7/7 + (7 × 7 × 7 + 77) := 7 + ((7 × 7 × 7 − 7/7) + 77) := 7 + ((77 × 77 + 7)/(7 + 7)) := 8 + (8 × 8 × 8 − (88/8 + 88)) := 8 × 8 × 8 + (((8 + 8)/8) − 88) := 8 + (8 × 8 × 8 − (8/8 + 88)) := 9 + ((((9 + 9)/9)9 ) − (9/9 + 99)) := (9 + 9) × (9 + 9) + (999/9 − 9) := (((9 + 9)/9)9 ) − 9 × 9 Ï 422 := (1 + 1) × (1 + 1) × 111 − 11 Ï 427 := 1 + (1 + 1) × ((1 + 1) × (1 + 111) − 11) := (((3 + 3)3/3+3 ) − 3)/3 := 44 + ((4 × 44) − 4/4) Ï 432 := (1 + 1 + 1) × (1 + 11)1+1 := 22 + (22 − 2)2 := 2 + (((22 − 2/2)2 ) − 22+2 ) := 2 × ((2 + 2 + 2)2/2+2 ) := 33 + ((33 × (3 × 3 + 3)) − 3/3) := (((3 + 3) × ((3 + 3)3 − 3)) + 3)/3 := 3 × ((3 + 3) × (33 − 3)) := 444 − (44/((4 + 4)/4)) := 444 − (4 × 4 + 4/4) := 44 + (4 × 44) := 5 + (((55 + 55 ) + 5)/(5 + 5 + 5)) := (5 + 5)/5 + (5 × (5 × 5 + 55 + 5)) := 5 × 5 × 5 + (55 − 55)/(5 + 5) := ((6 − 66)/6) + (6 × (66 + 6)) := 6/6 + ((6 × (66 + 6)) − 6) := 6 × (66 + 6) := 77 + (7 × 7 × 7 + ((7 + 7)/7)) := 7 + (7 × 7 × 7 + 77) := ((7 + 7)/7 + 7) × (7 × 7 − 7/7) := 8 × 8 × 8 − ((8 + 8)/8 + 88) := 8 × 8 × 8 + (88/8 − (88 + 8)) := 8 + (8 × 8 × 8 − 88) := (((9 × 9 × 99) − 9)/(9 + 9)) − (9 + 9) := 9 + ((9 + 9) × (9 + 9) + 99) 9 := 9 + ((((9 + 9)/9) ) − 99) 38 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 433 := 1 + ((1 + 1 + 1) × (1 + 11)1+1 ) := (((3 + 3) 3/3+3 Ï 438 := (1 + 1) × ((1 + 1) × (111 − 1) − 1) ) + 3)/3 := 444 − 44/4 5 Ï 443 := ((1 + 1) × (1 + 1) × 111) − 1 := 2 + ((22 − 2/2)2 ) := (2 × (222 − 2)) − 2 := 2 × 222 − 22/2 3 := (3 + 3) × (((3 + 3) + 3)/3) := 333 + ((333 − 3)/3) := 444 − ((4 + 4)/4 + 4) := 444 − 4/4 5 := 5 × 5 × 5 + ((5 + 5)/(5 + 5) − 5) := 5 × 5 × 5 + (5 + 5)/(5 + 5) := 555 − (555 + 5)/5 := 6/6 + (6 × (66 + 6)) := 6 + (6 × (66 + 6)) := 66/6 + (6 × (66 + 6)) := 777 − (7 × 7 × 7 + 7/7) := 7 + (((77 × 77 + 7)/(7 + 7)) + 7) := ((7 + 7)/7) + 7 × (7 × 7 + 7 + 7) := 8 + ((8 × 8 × 8 − 88) + 8/8) := (8 − 88)/8 + 8 × (8 × 8 − 8) := 888/((8 + 8)/8) − 8/8 := 9 + (((9 + 9) × (9 + 9) + 99) + 9/9) Ï 434 := 1 + (1 + ((1 + 1 + 1) × (1 + 11)1+1 )) 9 := 9 + ((((9 + 9)/9) ) − (((9 + 9)/9) + 9 × 9)) Ï 439 := ((11 + 11 − 1)1+1 ) − 1 − 1 := 9 + (((9 + 9) × (9 + 9) + (99/9)) + 99) Ï 444 := (1 + 1) × (1 + 1) × 111 := ((22 − 2/2)2 ) − 2 := 2 × 222 := (((3 + 3) × ((3 + 3)3 + 3)) + 3)/3 := 333 + 333/3 := 444 + (4 − 44)/4 := 444 − (4/4 + 4) := 444 := 5 + (555 − (5 × 5 × 5 + 5/5)) := 555 − (555/5 + 5) := (5 − 5/5) × 555/5 := (6 + 6)/6 + (6 × (66 + 6)) := 6 + ((6 × (66 + 6)) + 6/6) := 6 + ((6 × (66 + 6)) + 6) := 777 − 7 × 7 × 7 := 7 × (7 × 7 + 7 + 7) − (7 + 7)/7 := (77/7 − 7) × 777/7 := (8 − 8/8) × (8 × 8 − ((8 + 8)/8)) := 8 × (8 × 8 − 8) − (8/8 + 8) := 888/((8 + 8)/8) := 99 + ((9 + 9) × (9 + 9) + (99/9)) := 9 + ((((9 + 9)/9)9 ) − (9/9 + 9 × 9)) := (999 × (9 − 9/9))/(9 + 9) := (2 × (222 − (2 + 2))) − 2 := 3 + ((((3 + 3) 3/3+3 ) − 3)/3) Ï 435 := (1 + 1 + 1) × (1 + (1 + 11)1+1 ) Ï 440 := (1 + 1) × (1 + 1) × (111 − 1) Ï 445 := 1 + ((1 + 1) × (1 + 1) × 111) := 2 + (2 × 222 − 22/2) := 2 × (222 − 2) := 2/2 + 2 × 222 := 3 + (3 × 33 + 333) := (3/3 + 3) × ((333 − 3)/3) := 333 + ((333 + 3)/3) := 444 − ((4/4 + 4) + 4) := 444 − 4 := 4/4 + 444 := 5 + (555 − 5 × 5 × 5) := (5 + 5) × (55 − (55/5)) := 555 − (55 + 55) := (6 × (66 + 6)) + (6 × 6/(6 + 6)) := 6 + ((6 × (66 + 6)) + ((6 + 6)/6)) := 6 + (((6 × (66 + 6)) + 6/6) + 6) := 7 + (7 × 77 − 777/7) := 7 × (7 × 7 + 7 + 7) − 7/7 := 77/7 + (777 − 7 × 7 × 7) := 8 × 8 × 8 + (88/8 − 88) := 8 × (8 × 8 − 8) − 8 := 8 + (8 × (8 × 8 − 8) − (88/8)) := (9 + 9) × (9 + 9) + 999/9 := 9 + ((((9 + 9)/9)9 ) − 9 × 9) := ((9 × 9 × 99) − 9)/(9 + 9) Ï 436 := (1 + 1) × (1 + 1) × (111 − 1 − 1) Ï 441 := (11 + 11 − 1)1+1 Ï 446 := (1 + 1) × (1 + (1 + 1) × 111) := (22 − 2/2)2 := 2 + 2 × 222 := 3 × (((3 + 3) × (33 − 3)) + 3) := ((3 × (33 × 33 )) + 3)/(3 + 3) := 444 − 4 − 4 := 4/4 + (444 − 4) := 444 + (4 + 4)/4 := 5 + ((555 − 5 × 5 × 5) + 5/5) := ((55/5 + 5) + 5)(5+5)/5 := 5 + (((55/5 + 5) + 5)(5+5)/5 ) := 6 + ((6 × (66 + 6)) − ((6 + 6)/6)) := 2 × (222 − (2 + 2)) := 3 + ((((3 + 3) 3/3+3 ) + 3)/3) := 6 + ((6 × (66 + 6)) + (6 × 6/(6 + 6))) := 6 + (((6 × (66 + 6)) + ((6 + 6)/6)) + 6) := 7 + (((7 − 777)/7) + 7 × 77) := 7 × (7 × 7 + 7 + 7) := 7 + (7 × (7 × 7 + 7 + 7) − ((7 + 7)/7)) := 888/((8 + 8)/8) − 8 := 8/8 + (8 × (8 × 8 − 8) − 8) := 8 × (8 × 8 − 8) − (8 + 8)/8 := (((9 × 9 × 99) − 9)/(9 + 9)) − 9 := 9 × ((9 × 99 − 9)/(9 + 9)) := ((9 × 9 × 99) + 9)/(9 + 9) Ï 437 := 1 + ((1 + 1) × (1 + 1) × (111 − 1 − 1)) 2 := ((22 − 2/2) ) − 2 − 2 3 Ï 442 := 1 + ((11 + 11 − 1)1+1 ) Ï 447 := 1 + ((1 + 1) × (1 + (1 + 1) × 111)) := 2 + (2 × 222 + 2/2) := 2 × 222 − 2 := 3 × 33 + (((3/3 + 3) + 3) ) := 3 + (333/3 + 333) := 444 − (4 + 4)/4 := 4 + (444 − 4/4) := 5 × 5 × 5 + (5 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 5 × 5 × 5) := ((55 − 5/5) + 5)/((5 + 5)/5 + 5) := 6 + ((6 × (66 + 6)) − 6/6) := ((66 − 6)/6) + (6 × (66 + 6)) := ((6/6 + 6) × ((6 + 6)/6)6 ) − 6/6 := 7 + (((77 × 77 − 7)/(7 + 7)) + 7) := 7/7 + 7 × (7 × 7 + 7 + 7) := 7 + (7 × (7 × 7 + 7 + 7) − 7/7) := 8 × (8 × 8 − 8) − 88/8 := (8 + 8)/8 + (8 × (8 × 8 − 8) − 8) := 8 × (8 × 8 − 8) − 8/8 := (((9 × 9 × 99) + 9)/(9 + 9)) − 9 := 9/9 + (9 × ((9 × 99 − 9)/(9 + 9))) := 9/9 + (((9 × 9 × 99) + 9)/(9 + 9)) := (((3 + 3) × ((3 + 3) + 3)) − 3)/3 := 4 + (444 − 44/4) 5 3 39 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 448 := (1 + 1) × (1 + 1) × (1 + 111) Ï 453 := 1 + (11 + ((11 + 11 − 1)1+1 )) Ï 458 := 1 + (11 + ((1 + 1) × (1 + (1 + 1) × 111))) := 222 − (22 + 2 + 2) := 2/2 + (2 × ((222 + 2) + 2)) := 2 × (222 + 2) 3 := (3/3 + 3) × ((333 + 3)/3) := (3 × (3 + 3) × 3 ) − 33 := (3 + 3)3 + ((33+3 − 3)/3) := 4 + 444 := 4 + ((444 + 4/4) + 4) := 4 + ((44 − 4)/4 + 444) := (5 − 5/5) × (555 + 5)/5 := 5 + ((5 − 5/5) × (555 + 5)/5) 6 6 := (5 × 5 × 5 × 55 − 5)/(5 + 5 + 5) := (6/6 + 6) × ((6 + 6)/6) := 6 + (((6/6 + 6) × ((6 + 6)/6) ) − 6/6) := 66 + (((6 + 6)/6 − 6) + 6 × 66) := 7 + 7 × (7 × 7 + 7 + 7) := 7 × 7 × 7 + (777 − 7)/7 := 7 + (77/7 × (7 × 7 − (7/7 + 7))) := 8 × (8 × 8 − 8) := 8 + ((8 × (8 × 8 − 8) − (88/8)) + 8) := 8 + (8 × (8 × 8 − 8) + ((8 + 8)/8)) := (9 − 9/9) × ((999 + 9)/(9 + 9)) := 9 + ((999 × (9 − 9/9))/(9 + 9)) := 9 + ((((((9 + 9)/9)9 ) − 9 × 9) + 9) + 9) Ï 449 := 1 + ((1 + 1) × (1 + 1) × (1 + 111)) := 2/2 + (2 × (222 + 2)) Ï 454 := 11 + (((1 + 1) × (1 + 1) × 111) − 1) := 2 + (2 × ((222 + 2) + 2)) Ï 459 := 11 + ((1 + 1) × (1 + 1) × (1 + 111)) := 22/2 + (2 × (222 + 2)) := 3 + (((3 × (33 × 3 )) + 3)/(3 + 3)) := 3/3 + ((3 × (3 + 3) × 3 ) − 33) := 3 × (3 × ((33 − 3) + 33 )) := 4 + (444 + 4/4) := 444 + (44 − 4)/4 := 4 + (444 + 44/4) := 5 + ((5 − 5/5) × 555/5) := 5 + (((5 − 5/5) × 555/5) + 5) := (55 − 555)/5 − 55 := 6 + ((6 × (66 + 6)) + (66/6)) := 6 + ((6/6 + 6) × ((6 + 6)/6)6 ) := 66 + (6 × 66 − (6 × 6/(6 + 6))) := 7 + (7 × (7 × 7 + 7 + 7) + 7/7) := 7 × 7 × 7 + 777/7 := 7 + (7 × (7 × 7 + 7 + 7) + (77/7)) := 8/8 + 8 × (8 × 8 − 8) := 8 + (8 × (8 × 8 − 8) − ((8 + 8)/8)) := 88/8 + 8 × (8 × 8 − 8) := 9 + (((9 × 9 × 99) − 9)/(9 + 9)) := (9 + 9 + 9) × ((9 − 9/9) + 9) 3 9 := 9 + (((((9 + 9)/9) ) − 9 × 9) + 9) Ï 450 := (1 + 1) × (1 + (1 + 1) × (1 + 111)) 3 Ï 455 := 11 + ((1 + 1) × (1 + 1) × 111) Ï 460 := (1 + 1) × ((11 − 1) × (1 + 11 + 11)) := 2 + (2 × (222 + 2)) := 22/2 + 2 × 222 := 222 − (22 + 2) := (3 + 3) × ((3 × (33 − 3)) + 3) := (3 + 3)3 + (((33+3 − 3)/3) − 3) := (3 + 3)3 + ((33+3 + 3)/3) := 4 + (444 + (4 + 4)/4) := 444 + 44/4 := 4 × 4 + 444 := (5 + 5) × (55 − 5 − 5) := 5 + ((5 + 5) × (55 − 5 − 5)) := 5 + (((5 + 5) × (55 − 5 − 5)) + 5) := 666 − 6 × 6 × 6 := (6/6 + 6) × (66 − 6/6) := 6 × 66 + ((6 + 6)/6)6 := (7 − 7/7) × (77 − (7 + 7)/7) := 7 × 77 − (77 + 7) := 7 × 77 − ((7 + 7)/7 + 77) := (8 + 8)/8 + 8 × (8 × 8 − 8) := 8 + (8 × (8 × 8 − 8) − 8/8) := 8 + (888/((8 + 8)/8) + 8) := 9 × ((9 × 99 + 9)/(9 + 9)) := 9 + (((9 × 9 × 99) + 9)/(9 + 9)) := (9 × (99 + 9)) − (((9 + 9)/9)9 ) Ï 451 := 1 + ((1 + 1) × (1 + (1 + 1) × (1 + 111))) Ï 456 := 1 + (11 + ((1 + 1) × (1 + 1) × 111)) Ï 461 := ((1 + 1) × (11 × (11 + 11 − 1))) − 1 := 2 + ((2 × (222 + 2)) + 2/2) := 2 × (((222 + 2) + 2) + 2) := 222 − (22 + 2/2) := 3 + ((3/3 + 3) × ((333 + 3)/3)) := 3 + ((3 × (3 + 3) × 33 ) − 33) := (33 × (33/3 + 3)) − 3/3 := 4 + ((444 − 4/4) + 4) := 4 + (444 + 4 + 4) := 4 × 4 + (444 + 4/4) := 5/5 + ((5 + 5) × (55 − 5 − 5)) := 5 + (((5 + 5) × (55 − 5 − 5)) + 5/5) := 55/5 + ((5 + 5) × (55 − 5 − 5)) := 66 + (6 × 66 − (66/6)) := 66 + (6 × 66 − 6) := 66 + (6 × 66 − 6/6) := 77/7 × (7 × 7 − (7/7 + 7)) := (7 − 7/7) × (77 − 7/7) := 7 × 77 − (7/7 + 77) := 88/8 + (8 × (8 × 8 − 8) − 8) := 8 + 8 × (8 × 8 − 8) := 8 × (8 × 8 − 8) + (88 + 8 + 8)/8 := ((9 × 9 × 99) + 99)/(9 + 9) := (9 × (9 × 9 − (9 + 9))) − 999/9 := 9/9 + ((9 × (99 + 9)) − (((9 + 9)/9)9 )) Ï 452 := 11 + ((11 + 11 − 1)1+1 ) := 2 × ((222 + 2) + 2) Ï 457 := 11 + ((1 + 1) × (1 + (1 + 1) × 111)) := 2 + (2 × 222 + 22/2) 3 3+3 := (3/3 + 3) × (((333 − 3)/3) + 3) := (3 + 3) + (((3 := 4 + (444 + 4) := 4 + (((444 + 4/4) + 4) + 4) := (5 + 5)/5 + ((5 + 5) × (55 − 5 − 5)) + 3)/3) − 3) 5−5/5+5 := (((5 + 5)/5) ) − 55 Ï 462 := (1 + 1) × (11 × (11 + 11 − 1)) := 222 − 22 := 33 × (33/3 + 3) := 4 × 4 + (444 + (4 + 4)/4) := 55/5 × ((((5 + 5)/5)5 + 5) + 5) := 66 + (((6 − 66)/6) + 6 × 66) := 66 + ((6 × 66 − 6) + 6/6) := 66 + 6 × 66 := 77/7 + 7 × (7 × 7 + 7 + 7) := 7 + ((7 − 7/7) × (77 − (7 + 7)/7)) := 77 × (7 − 7/7) := 8 + 888/((8 + 8)/8) := 8 + (8 × (8 × 8 − 8) + 8/8) := (8 − 8/8) × (((8 + 8)/8) + 8 × 8) := 9/9 + (((9 × 9 × 99) + 99)/(9 + 9)) := ((9999 + 9)/(9 + 9)) − 99 := 99 + ((99 × 99)/(9 + 9 + 9)) 40 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 463 := 1 + ((1 + 1) × (11 × (11 + 11 − 1))) Ï 468 := (1 + 1) × (1 + (11 + (1 + 1) × 111)) Ï 473 := (11 + 11)1+1 − 11 := 22 + ((22 − 2/2)2 ) := 222 − 22+2 := 222 − 22/2 := 3/3 + (33 × (33/3 + 3)) := (3 + 3) × (3 × 33 − 3) := 33/3 + (33 × (33/3 + 3)) := 4 + ((444 + 44/4) + 4) := 44 + (44 − 44) := 44/4 × (44 − 4/4) := 5 × (5 × 5 + 5) + (5 + 5)/(5 + 5) := (5 − 5/5) × ((555 + 5)/5 + 5) := 55/5 × (55 − ((55 + 5)/5)) := 66 + (6 × 66 + 6/6) := 6 × (66 + 6 + 6) := 6 + ((6 × (66 + 6 + 6)) − 6/6) 5 := 7/7 + (77 × (7 − 7/7)) := (7 − 7/7) × (7/7 + 77) := 7 × 77 + (77/7 − 77) := 8 + ((8 × (8 × 8 − 8) − 8/8) + 8) := 8 × 8 × 8 − (88/((8 + 8)/8)) := 8 + (((8 × (8 × 8 − 8) + 8/8) + 8) + 8) := 9 + ((((9 × 9 × 99) − 9)/(9 + 9)) + 9) := (9 + 9) × (((9 − 9/9) + 9) + 9) := 9 × 9 × 9 − (((9 + 9)/9)9−9/9 ) Ï 464 := (1 + 1) × (111 + 111+1 ) Ï 469 := 1 + ((1 + 1) × (1 + (11 + (1 + 1) × 111))) Ï 474 := 1 + ((11 + 11)1+1 − 11) := 2 + (222 − 22) := 2/2 + (222 − 22+2 ) := 222 + ((2 − 22)/2) := 3 + ((33 × (33/3 + 3)) − 3/3) := 3/3 + ((3 + 3) × (3 × 33 − 3)) := (3 × ((3 + 3) × 33 − 3)) − 3 := 4 + (444 + 4 × 4) := 4/4 + ((44 − 44) + 44 ) := ((44 × (44 − 4/4)) + 4)/4 := (5 − 5/5) × (555/5 + 5) := (5 − 5/5) − 555 := 5 + ((5 − 5/5)5 − 555) := 66 + (((6 + 6)/6) + 6 × 66) := 6/6 + (6 × (66 + 6 + 6)) := 6 + (6 × (66 + 6 + 6)) := 7 × 77 + ((7 + 7)/7 − 77) 5 := 7 + (77 × (7 − 7/7)) := (7 − 7/7) × ((7 + 7)/7 + 77) := 8 + (8 × (8 × 8 − 8) + 8) := (8 − 8/8) × ((88/8 − 8) + 8 × 8) := (8 − (8 + 8)/8) × (88 − (8/8 + 8)) := 9 + ((((9 × 9 × 99) + 9)/(9 + 9)) + 9) := 9 + ((9 × (99 + 9)) − (((9 + 9)/9)9 )) := ((9 + 9) × (9 + 9 + 9)) − (99 + 9)/9 Ï 465 := 1 + ((1 + 1) × (111 + 111+1 )) Ï 470 := (1 + 1) × (11 + (1 + 1) × (1 + 111)) Ï 475 := 1 + (1 + ((11 + 11)1+1 − 11)) := 2 + ((222 − 22) + 2/2) := 2 + (222 − 22+2 ) := 2 + (222 − 22/2) := 3 + (33 × (33/3 + 3)) := 3 + (((3 + 3) × (3 × 33 − 3)) − 3/3) := (3 × (3 + 3) × 33 ) − 33/3 := 4 + ((444 + 4 × 4) + 4/4) := 4 + ((44/((4 + 4)/4)) + 444) := 444 + (4 × (4 + 4) − 4/4) := (5 × (5 × (5 × 5 − 5) − 5)) − 5 := 5 × (5 × (5 × 5 − 5) − 5) := 5 × (5 × 5 × 5 − ((5 + 5)/5)5 ) := 66 + ((6 × 6/(6 + 6)) + 6 × 66) := (6 + 6)/6 + (6 × (66 + 6 + 6)) := 6 + ((6 × (66 + 6 + 6)) + 6/6) := 77 + (((7 × 777) − 7)/(7 + 7)) := 7 + ((77 × (7 − 7/7)) + 7/7) := 7 + ((7 − 7/7) × (7/7 + 77)) := 8 + ((8 × (8 × 8 − 8) + 8/8) + 8) := 8 + ((8 − 8/8) × (((8 + 8)/8) + 8 × 8)) := 8 + ((8 × (8 × 8 − 8) + (88/8)) + 8) := 9 + ((9 × (9 × 9 − (9 + 9))) − 999/9) := (9 + 9)/9 + ((9 + 9) × (((9 − 9/9) + 9) + 9)) := ((9 + 9) × (9 + 9 + 9)) − 99/9 Ï 466 := (1 + 1) × (11 + (1 + 1) × 111) Ï 471 := (11 + 11)1+1 − (1 + 1 + 11) 2 := 22 + 2 × 222 Ï 476 := (1 + 1) × ((1 + 1) × (111+1 − (1 + 1))) := 222 − 2 × (2 + 2) := 22 − (22/2 + 2) := 3 + ((33 × (33/3 + 3)) + 3/3) := 3 + ((3 + 3) × (3 × 3 − 3)) := (33/3 + 3) × (3/3 + 33) := 444 + (44/((4 + 4)/4)) := 4 × 4 + (444 + 44/4) := (55 + 5)/5 − (5 × ((5 + 5)/5)5 ) := 444 + 4 × (4 + 4) := 5/5 + ((5 × (5 × (5 × 5 − 5) − 5)) − 5) := 5/5 + (5 × (5 × (5 × 5 − 5) − 5)) := 6 × (66 − 6) + 666/6 := (6/6 + 6) × (((6 + 6)/6) + 66) 6 := 6 + (((6 + 6)/6) + 6 × 66) 3 7 := 77 + (((7 × 777) + 7)/(7 + 7)) := 7 × 7 × 7 + ((7 + 7)/7) := 7 × (77 − 7) − (7 + 7) := 8 + ((8 × (8 × 8 − 8) + ((8 + 8)/8)) + 8) := 8 + (((8 × (8 × 8 − 8) − 8/8) + 8) + 8) := 88 × 88/(8 + 8) − 8 := ((9 + 9) × (9 + 9 + 9)) − (99/9 + 9) := 9 + (((99 × 99)/(9 + 9 + 9)) + 99) := (((9 + 9)/9)9 ) − ((9 + 9 + 9) + 9) Ï 467 := 1 + ((1 + 1) × (11 + (1 + 1) × 111)) := 22 + (2 × 222 + 2/2) 3 := ((3 + 3) × (3 × 3 − 3)) − 3/3 4 4 := 4 + (4 − (44 + 4/4)) 5 := 5 + ((5 − 5)/(5 + 5) + 5 × (5 × 5 + 5)) Ï 472 := (11 + 11)1+1 − 1 − 11 := 222 − (2 × (2 + 2 + 2)) 3 := 3 + (((3 + 3) × (3 × 3 − 3)) + 3/3) 4 4 := 4 + ((4 − 44) + 4 ) 5 5 := 55 + (((5 + 5 ) + 5)/(5 + 5 + 5)) Ï 477 := 1 + ((1 + 1) × ((1 + 1) × (111+1 − (1 + 1)))) := 2 + ((222 − 22/2) + 2) := 3 × ((3 + 3) × 33 − 3) := 4 + (44/4 × (44 − 4/4)) := (5 + 5)/5 + (5 × (5 × (5 × 5 − 5) − 5)) := (6 × (66 + 6 + 6)) − 6/6 := 6 + ((((6 + 6)/6) + 6 × 66) + 6) := 6 + (6 × (66 − 6) + 666/6) := 7 + (7 × 77 − ((7 + 7)/7 + 77)) := 7 × (77 − 7) − (77/7 + 7) := 7/7 + (7 × (77 − 7) − (7 + 7)) := 8 + (8 × (8 × 8 − 8) + (88/8)) := 8 + ((8 × (8 × 8 − 8) + 8) + 8) := (8/8 + 8) × (8 × 8 − 88/8) := 9 + (((((9 × 9 × 99) − 9)/(9 + 9)) + 9) + 9) := ((9 + 9) × (9 + 9 + 9)) − 9 9 := (((9 + 9)/9) ) − (((9 + 9 + 9) + 9) + 9) 6 41 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 478 := (1 + 1) × ((1 + 1) × (111+1 − 1) − 1) Ï 483 := (11 + 11)1+1 − 1 Ï 488 := (1 + 1) × ((1 + 1) × (1 + 111+1 )) := 222 − (2 + 2 + 2) := 222 − 2/2 := 2 + 222 + 2 := 3/3 + (3 × ((3 + 3) × 33 − 3)) := (3 × (3 + 3) × 33 ) − 3 := 3 + (((3 − 3/3)3×3 ) − 33 ) := 44 + (444/((4 + 4)/4)) := (44 × 44 − 4)/4 := 44 + 444 := 5 + (55/5 × (55 − ((55 + 5)/5))) := 5 × 55 + ((55 − 5)/(5 + 5 + 5)) := (5 − 5/5) × ((555 + 55)/5) := ((66 − 6)/6) + (6 × (66 + 6 + 6)) := (6/6 + 6) × (6 × 6/(6 + 6) + 66) := ((6 + 6)/6 + 6) × ((66 − 6) + 6/6) := 7 + (((7 + 7)/7) + 7 × 7 × 7) := 7 × (77 − 7) − 7 := 7 × (77 − 7) − (7 + 7)/7 := (88 × 88 − (88 + 8))/(8 + 8) := 88 × 88/(8 + 8) − 8/8 := 8 × 8 × 8 − 8 − 8 − 8 := 9/9 + (((9 + 9) × (9 + 9 + 9)) − 9) := ((9 + 9 + 9)/9) × (9 × (9 + 9) − 9/9) := (9 + 9)/9 + ((9 + 9) × (9 + 9 + 9)) 7 Ï 479 := ((1 + 1) × (1 + 1) × (111+1 − 1)) − 1 Ï 489 := 1 + ((1 + 1) × ((1 + 1) × (1 + 111+1 ))) Ï 484 := (11 + 11)1+1 := 222 − (2/2 + 2 + 2) := 222 := 2 + 222 + 2/2 + 2 := ((3 − 3/3)3×3 ) − 33 := 3/3 + ((3 × (3 + 3) × 33 ) − 3) := 3 + (3 × (3 + 3) × 33 ) := ((44 × 44 − 4)/4) − 4 := 44 × 44/4 := 4 + ((44 × 44 + 4)/4) 5 := 5 + (((5 − 5/5) − 555) + 5) := 55/5 × (55 − (55/5)) (6+6)/6 := 555 − (55/5 + 55) := 666 − (666/6 + 66) := 66/6 + (6 × (66 + 6 + 6)) := ((66 + 66)/6) := 7 × (77 − 7) − 77/7 := 7/7 + (7 × (77 − 7) − 7) := 7 × (77 − 7) − 7/7 := 8 × 8 × 8 − ((8/8 + 8 + 8 + 8) + 8) := 88 × 88/(8 + 8) := 8/8 + (8 × 8 × 8 − (8 + 8 + 8)) := (9 + 9)/9 + (((9 + 9) × (9 + 9 + 9)) − 9) := ((99 + 99)/9)(9+9)/9 := ((9 + 9 + 9)/9) + ((9 + 9) × (9 + 9 + 9)) Ï 480 := (1 + 1) × (1 + 1) × (111+1 − 1) Ï 490 := (1 + 1) × (1 + ((1 + 1) × (1 + 111+1 ))) Ï 485 := 1 + (11 + 11)1+1 := 222 − 2 − 2 := 2/2 + 222 := 2 + 222 + 2 + 2 := 3 + (3 × ((3 + 3) × 33 − 3)) := ((3 − 3/3)3×3 ) − 33 := 3 + ((3 × (3 + 3) × 33 ) + 3/3) := (4 + 4) × (4 × 4 + 44) := (44 × 44 + 4)/4 := 4 + (((44 × 44 + 4) + 4)/4) := 5 + (5 × (5 × (5 × 5 − 5) − 5)) := 5 + ((5 × (5 × (5 × 5 − 5) − 5)) + 5) := (5 + 5) × (55 − (5/5 + 5)) := 6 + ((6 × (66 + 6 + 6)) + 6) := 6 + ((6 × (66 + 6 + 6)) + (66/6)) := (6/6 + 6) × (((6 + 6)/6)6 + 6) := (7/7 + 7) × (77/7 + 7 × 7) := ((7 + 7)/7) + (7 × (77 − 7) − 7) := 7 × (77 − 7) := 8 × (8 × 8 − (8/((8 + 8)/8))) := 8/8 + 88 × 88/(8 + 8) := (9/9 − 9 × 9) × (((9 + 9 + 9)/9) − 9) Ï 481 := (11 + 11)1+1 − 1 − 1 − 1 9 := (((9 + 9)/9) ) − (9 + 9 + 9) Ï 486 := 1 + (1 + (11 + 11)1+1 ) := 8 × 8 × 8 − (88 + 88)/8 := (((9 × 999) − 9)/(9 + 9)) − 9 Ï 491 := 1 + ((1 + 1) × (1 + ((1 + 1) × (1 + 111+1 )))) := 222 − 2/2 − 2 := 2 + 222 := 2 + 222 + 2/2 + 2 + 2 := 3 + ((3 × ((3 + 3) × 33 − 3)) + 3/3) := 3 × (3 + 3) × 33 := 3 + ((((3 − 3/3)3×3 ) − 33 ) + 3) := ((44 × 44 + 4)/4) − 4 := ((44 × 44 + 4) + 4)/4 := 4 + (((44 × 44 − 4)/4) + 4) := (5555 − 5 )/5 − 5 := (5555 − 55 )/5 := 5 + (5555 − 55 )/5 := (6/6 + 6 + 6) × (6 × 6 + 6/6) := 666 + (6 × (6 − 6 × 6)) := 6 × 6 + ((6/6 + 6) × (66 − 6/6)) := 7 × (77 − 7) − ((7 + 7)/7 + 7) := 7 + (7 × (77 − 7) − (77/7)) := 7/7 + 7 × (77 − 7) := 8 × 8 × 8 + ((8 − 88)/8 − (8 + 8)) := 8 + (88 × 88/(8 + 8) − 8/8) := (9 + 9) × (9 + 9 + 9) := (((9 × 999) + 9)/(9 + 9)) − 9 5 := 8/8 + (8 × (8 × 8 − (8/((8 + 8)/8)))) := 9 × 9 + ((99/9 + 9) (9+9)/9 ) Ï 482 := (11 + 11)1+1 − 1 − 1 Ï 487 := 1 + (1 + (1 + (11 + 11)1+1 )) Ï 492 := (1 + 1) × ((1 + 1) × (1 + (1 + 111+1 ))) := 222 − 2 := 2 + 222 + 2/2 := 2 × (2 + 2) + 222 := 3 + (((3 − 3/3)3×3 ) − 33) := 3/3 + (3 × (3 + 3) × 33 ) := 3 + ((3 × (3 + 3) × 33 ) + 3) := (44 × 44 − (4 + 4))/4 := 4 + ((44 × 44 − 4)/4) := 4 + (444 + 44) := ((5555 − 5 + 5)/5) − 5 := (5555 − 5 + 5)/5 := 5 + ((5555 − 55 + 5)/5) := 6 + ((6/6 + 6) × (((6 + 6)/6) + 66)) := 6 + ((6/6 + 6 + 6) × (6 × 6 + 6/6)) := 66 + ((6 × (66 + 6)) − 6) := 7 × (77 − 7) − (7/7 + 7) := 7 × (77 − 7) − (7 + 7 + 7)/7 := ((7 + 7)/7) + 7 × (77 − 7) := 8 × 8 × 8 − ((88 + 88)/8 + 8) := 8 × 8 × 8 − (8/8 + 8 + 8 + 8) := 8 + 88 × 88/(8 + 8) := ((9 × ((9 × (99 + 9)) − 9)) + 9)/(9 + 9) := 9/9 + ((9 + 9) × (9 + 9 + 9)) := (((9 + 9)/9)9 ) − (99/9 + 9) 5 5 42 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 493 := 11 + ((11 + 11)1+1 − (1 + 1)) Ï 498 := (11 − 1)1+1+1 /(1 + 1) − 1 − 1 Ï 503 := 1 + 1 + (1 + 1)11−1−1 − 11 := 22/2 + (222 − 2) := 22+2 + (222 − 2) := 22 + 222 − (2/2 + 2) := 3 + (((3 × (3 + 3) × 33 ) + 3/3) + 3) := 3 + (3 × ((3 + 3) × 33 + 3)) := ((3 − 3/3)3×3 ) − 3 × 3 := 4 + (((44 × 44 + 4)/4) + 4) := 44 + (44 × 44/(4 + 4)) := (((4 + 4) × (44 − 4)) − 4)/4 := 555 + ((5 − 55 /5)/(5 + 5)) := 555 − ((5 + 5)/5 + 55) := (55 − (555 + 55))/5 := ((6 + 6) × (6 × 6 + 6)) − 66/6 := 66 + (6 × (66 + 6)) := ((6 + 6) × (6 × 6 + 6)) − 6/6 := 7 × (77 − 7) + (7 + 7 + 7)/7 := 7 + (7 × (77 − 7) + 7/7) := 7 + ((7 × (77 − 7) − 7/7) + 7) := 8 × 8 × 8 − (88/8 + 8) := 8 × 8 × 8 + (((8 + 8)/8) − (8 + 8)) := 8 × 8 × 8 − (8/8 + 8) := ((99 + 9)/9) + ((9 + 9) × (9 + 9 + 9)) := (((9 + 9)/9)9 ) − 9 9 := (((9 + 9)/9) ) − (9/9 + 9 + 9) Ï 494 := 11 + ((11 + 11)1+1 − 1) Ï 499 := (11 − 1)1+1+1 /(1 + 1) − 1 Ï 504 := (1 + 1) × ((1 + 11) × (11 + 11 − 1)) := 2 + 22/2 + 222 + 2 := 22 + 222 − 2 := ((3 − 3/3)3×3 ) − (3 × (3 + 3)) := ((3 × (3 × 333)) − 3)/(3 + 3) := (3 + 3) × (3 × 33 + 3) := ((44 × 44 − 4) + 44)/4 := 4 + 44/4 × (44 + 4/4) := 44 + (44 − 4 − 4) := 555 − ((55 + 5/5) + 5) := 555 − (55 + 5/5) := 5 + (555 − (55 + 5/5)) := ((6 − 66)/6) + ((6 + 6) × (6 × 6 + 6)) := 66 + ((6 × (66 + 6)) + 6/6) := (6 + 6) × (6 × 6 + 6) := 77/7 + (7 × (77 − 7) − 7) := 7 + (7 × (77 − 7) + ((7 + 7)/7)) := 7 + (7 × (77 − 7) + 7) := 8 × 8 × 8 + ((8 − 88)/8 − 8) := 8 × 8 × 8 − (88 + 8 + 8)/8 := 8 × 8 × 8 − 8 := ((9 × 999) − 9)/(9 + 9) := 9 + (((9 + 9) × (9 + 9 + 9)) + 9) := 2 + 2 × (2 + 2) + 22 2 9 := (((9 + 9)/9) ) − (9 + 9) Ï 495 := 11 + (11 + 11)1+1 Ï 500 := (11 − 1)1+1+1 /(1 + 1) Ï 505 := (11111 − 1)/(11 + 11) := 22+2 + 222 := 22 + 222 − 2/2 := 3 × ((3 + 3) × 33 + 3) := (3/3 + 3) × ((3 − 3/3 + 3)3 ) := 3/3 + ((3 + 3) × (3 × 33 + 3)) := 44/4 × (44 + 4/4) := 4 + ((44 − 4 × 4) + 44 ) := (((4 + 4) × (44 − 4)) + 4)/4 := 55 × (5 − 5/5 + 5) := 5 × 5 × (5 × 5 − 5) := 5 + (5 × 5 × (5 × 5 − 5)) := 6 × 66 + (666/6 − (6 + 6)) := 66 + ((6 × (66 + 6)) + ((6 + 6)/6)) := 6/6 + ((6 + 6) × (6 × 6 + 6)) := 7 + (7 × (77 − 7) − ((7 + 7)/7)) := 7 × (77 − 7) + (77 − 7)/7 := 7 + ((7 × (77 − 7) + 7/7) + 7) := 8 × 8 × 8 − (8/8 + 8 + 8) := 8 × 8 × 8 − (88 + 8)/8 := 8/8 + (8 × 8 × 8 − 8) := 9 + ((9 + 9) × (9 + 9 + 9)) := ((9 × 999) + 9)/(9 + 9) := (9 + 9)/9 + ((((9 + 9)/9)9 ) − 9) := 22/2 + 22 2 Ï 496 := 1 + (11 + (11 + 11)1+1 ) := 222 + (2 × (2 + 2 + 2)) := 3/3 + (3 × ((3 + 3) × 33 + 3)) Ï 501 := (1 + 1)11−1−1 − 11 := 2/2 + 2 2+2 Ï 506 := (1 + 1) × 11 × (1 + 11 + 11) 2 := 22 + 222 3 := ((3 − 3/3)3×3 ) − (3 + 3) + 22 := ((3 + 3) × (3 × 3 + 3)) − 3 4 4 := 4 × (4 × 4 × (4 + 4) − 4) := 4 + (4 − 44/4) := 44 + (44 − ((4 + 4)/4 + 4)) := 5/5 + (55 × (5 − 5/5 + 5)) := 5/5 + (5 × 5 × (5 × 5 − 5)) := 5 + ((5 × 5 × (5 × 5 − 5)) + 5/5) := 6 × 66 + (666/6 − 6) := (6 + 6)/6 + ((6 + 6) × (6 × 6 + 6)) := 7 + (7 × (77 − 7) − 7/7) := 77/7 + 7 × (77 − 7) := 7 + ((7 × (77 − 7) + ((7 + 7)/7)) + 7) := 8 × 8 × 8 − 8 − 8 := 8 × 8 × 8 − 88/8 := 8 × 8 × 8 + (((8 + 8)/8) − 8) := 9 + (((9 + 9) × (9 + 9 + 9)) + 9/9) := (((9 + 9)/9)9 ) − 99/9 := 9 + (((9 + 9) × (9 + 9 + 9)) + (99/9)) 6 := ((6 + 6)/6) + (6 × (66 + 6)) Ï 497 := 1 + (1 + (11 + (11 + 11)1+1 )) Ï 502 := 1 + (1 + 1)11−1−1 − 11 Ï 507 := (1 + 1 + 1) × (1 + 1 + 11)1+1 := 2 + (22/2 + 222 ) := 2 + 22+2 + 222 := 22 + 222 + 2/2 := 33/3 + (3 × (3 + 3) × 33 ) := 3 + ((3 × 3 × 333 − 3)/(3 + 3)) := 3 + ((3 + 3) × (3 × 33 + 3)) := 4/4 + ((44 − 4 × 4) + 44 ) := 44 + ((4 − 44)/4 + 44 ) := 44 + (44 − (4/4 + 4)) := 555 + ((5 + 5)/5 − (55 + 5)) := 555 + ((5 + 5)/5 − 55) := (((5 + 5)/5)5−5/5+5 ) − 5 := 66 + ((6 × (66 + 6)) − 6/6) := ((6 + 6) × (6 × 6 + 6)) − (6 + 6)/6 := 6 × 66 + 666/6 := 7 + 7 × (77 − 7) := 7 × (77 − 7) + (77 + 7)/7 := 7 + (7 × (77 − 7) + ((77 − 7)/7)) := 8/8 + (8 × 8 × 8 − (8 + 8)) := 8 × 8 × 8 + (8 − 88)/8 := 8 × 8 × 8 + (88/8 − (8 + 8)) := 99/9 + ((9 + 9) × (9 + 9 + 9)) := (((9 + 9)/9)9 ) − 9/9 − 9 := (((9 + 9)/9)9 ) + ((9 − 99)/(9 + 9)) 43 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 508 := 1 + (1 + 1 + 1) × (1 + 1 + 11)1+1 Ï 518 := (1 + 11 + 11)1+1 − 11 Ï 513 := 1 + (1 + 1)11−1−1 := 2 + 222 + 22 := 2/2 + 2 (2/2+2)2 := 2 + (2 × (22×(2+2) + 2)) := ((3 − 3/3)3×3 ) − (3/3 + 3) := 33+3 − (3 + 3)3 := 3 + (((3 − 3/3)3×3 ) + 3) := 44 + (44 − 4) := 4/4 + (44 + 44 ) := 4 + (((4 + 4)/4 + 44 ) + 44 ) := ((55 − (555 + 5))/5) − 5 := (55 − (555 + 5))/5 := 5 + ((55 − (555 + 5))/5) := 6 × 66 + (666 + 6)/6 := 6 + (666/6 + 6 × 66) := 6 + (((6 + 6)/6)6×6/(6+6)+6 ) := 7 + (7 × (77 − 7) + (77/7)) := 7/7 + ((7/7 + 7)(7+7+7)/7 ) := 7 × 77 − (7 + 7 + 7) := 8 × 8 × 8 − (8/((8 + 8)/8)) := 8/8 + 8 × 8 × 8 := 9 + (((9 × 999) − 9)/(9 + 9)) Ï 509 := (1 + 1)11−1−1 − 1 − 1 − 1 := 2 + 222 + 2/2 + 22 := ((3 − 3/3)3×3 ) − 3 := 4/4 + ((44 − 4) + 44 ) := (55 − 555)/5 − 5 := 6 + (((6 + 6) × (6 × 6 + 6)) − 6/6) := 7 + (7 × (77 − 7) + (77 + 7)/7) := 8 + (8 × 8 × 8 − 88/8) := 9 + (((9 × 999) + 9)/(9 + 9)) Ï 510 := (1 + 1)11−1−1 − 1 − 1 := 2 := 3 (2/2+2)2 3+3 −2 4 := 4 + (4 − (4 + 4)/4) := 5 + ((5 × 5 × (5 × 5 − 5)) + 5) := 6 + ((6 + 6) × (6 × 6 + 6)) := (7 − 7/7) × (7/7 + 77 + 7) := 8 × 8 × 8 − (8 + 8)/8 := (((9 + 9)/9)9 ) − (9 + 9)/9 Ï 511 := (1 + 1)11−1−1 − 1 := 2 (2/2+2)2 − 2/2 3×3 := ((3 − 3/3) 4 ) − 3/3 4 := 4 + (4 − 4/4) := 555 + (55/5 − 55) := 6 + (((6 + 6) × (6 × 6 + 6)) + 6/6) := 7 × (77 + 7) − 77 := 8 × 8 × 8 − 8/8 := (((9 + 9)/9)9 ) − 9/9 Ï 512 := (1 + 1)11−1−1 := 2 (2/2+2)2 3×3 := (3 − 3/3) 4 := 4 + 4 4 := ((5 + 5)/5)5−5/5+5 := ((6 + 6)/6)6×6/(6+6)+6 := (7/7 + 7) (7+7+7)/7 := 8 × 8 × 8 9 := ((9 + 9)/9) := 9/9 + (((9 + 9)/9) ) Ï 514 := 1 + 1 + (1 + 1)11−1−1 := 2 + 2(2/2+2) := 9 + ((((9 × 999) + 9)/(9 + 9)) + 9) Ï 519 := 1 + (1 + 11 + 11)1+1 − 11 := 2 + ((2 × (22×(2+2) + 2)) + 2/2) 2 := 3 + (((3 − 3/3)3×3 ) − 3/3) := 33 + (3 × (3 + 3) × 33 ) := 44 + ((4 + 4)/4 + 44 ) := (((4 + 4) × (44 + 4)) − 4)/4 := (55 − 555)/5 := 5 + (55 − 555)/5 := 6 + ((666 + 6)/6 + 6 × 66) := 6 + ((666/6 + 6 × 66) + 6) := 7 × 77 − (77/7 + 7 + 7) := 7 + ((7/7 + 7)(7+7+7)/7 ) := 8 × 8 × 8 + (8 + 8)/8 := 8 + (8 × 8 × 8 − 8/8) := (9 + 9)/9 + (((9 + 9)/9)9 ) := 9 + ((((9 + 9)/9)9 ) − ((9 + 9)/9)) Ï 515 := 1 + 1 + 1 + (1 + 1)11−1−1 Ï 520 := 1 + 1 + (1 + 11 + 11)1+1 − 11 := 2 + ((2(2/2+2) ) + 2/2) := 2 × ((22×(2+2) + 2) + 2) := 3 + ((3 − 3/3)3×3 ) := 3 × 3 + (((3 − 3/3)3×3 ) − 3/3) := 4 + ((44 − 4/4) + 44 ) := 4 + ((44 + 44 ) + 4) := 55 /5 − (55 + 55) := (55 − 5)/(5/5 + 5) := 66/6 + ((6 + 6) × (6 × 6 + 6)) := ((6 + 6)/6 + 6) × (66 − 6/6) := 7 + ((7 × (77 − 7) + (77/7)) + 7) := 7 × 77 − ((77 + 7)/7 + 7) := 8 × 8 × 8 + (88/8 − 8) := 8 + 8 × 8 × 8 2 3 − ((3 + 3) + 3) 4 := 8 + (8 × 8 × 8 − ((8 + 8)/8)) 9 9 := (((9 + 9)/9) ) + ((9 + 9 + 9)/9) Ï 516 := 1 + 1 + 1 + 1 + (1 + 1)11−1−1 := 9 + ((((9 + 9)/9)9 ) − 9/9) Ï 521 := 11 + (1 + 1)11−1−1 − (1 + 1) := 2 × (22×(2+2) + 2) := (22/2)2 + (22 − 2)2 := 3 + (33+3 − (3 + 3)3 ) := 3 × 3 + ((3 − 3/3)3×3 ) := 4 + (44 + 44 ) := (((4 + 4) × (44 + 4)) + 4)/4 := (55 + 5)/5 − (55 + 55) := (55 + 5/5)/(5/5 + 5) := 6 + (((6 + 6) × (6 × 6 + 6)) + 6) := 6 + (((6 + 6) × (6 × 6 + 6)) + (66/6)) := (7 − 7/7) × (((7 + 7)/7 + 77) + 7) := 7 × 77 − (77/7 + 7) := 8 × 8 × 8 + (8/((8 + 8)/8)) := 8 + (8 × 8 × 8 + 8/8) := (((9 + 9)/9)9 ) + ((9 × 9 − 9)/(9 + 9)) := 9 + (((9 + 9)/9)9 ) Ï 517 := 11 × (1 + (1 + 1) × (1 + 11 + 11)) Ï 522 := 11 + (1 + 1)11−1−1 − 1 := 22 + (22/2 + 222 ) := 2 + ((2 + 2 + 2)2 + 222 ) := 3 + ((((3 − 3/3)3×3 ) − 3/3) + 3) := (3 + 3) × (3 × 33 + 3 + 3) := 4 + ((4/4 + 44 ) + 44 ) := 44 + ((44 − 4)/4 + 44 ) := 5 + ((5 + 5)/5)5−5/5+5 := 5 + ((5 + 5)/5)5−5/5+5 + 5 := (66/6) × (66/6 + 6 × 6) := 666 − (6 + 6) × (6 + 6) := 77/7 × 7 × 7 − (7 + 7)/7 := 7 × 77 + (((7 − 77)/7) − 7) := 8 + ((8 × 8 × 8 − 88/8) + 8) := 8 + (8 × 8 × 8 + (8 + 8)/8) := 9 + ((((9 × 999) − 9)/(9 + 9)) + 9) := 9 + ((((9 + 9)/9)9 ) + 9/9) 44 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 523 := 11 + (1 + 1)11−1−1 := 22/2 + (2 (2/2+2)2 ) Ï 533 := 1 + 1 + 1 + 1 + (1 + 11 + 11)1+1 Ï 528 := (1 + 11 + 11)1+1 − 1 := 2 + (((22 + 2/2)2 ) + 2) := 22 × (22 + 2) 3 := 3 + (((3 − 3/3)3×3 ) + (3 × (3 + 3))) := 33/3 + ((3 − 3/3)3×3 ) := 33 × (3 − 33/3) := 44 + (44/4 + 44 ) := 44 × ((4 + 4) + 4) := 555 − ((5 + 5)/5)5 := 5 + (555 − ((5 + 5)/5) ) := 555 − (55 + 55)/5 := 6 + ((66/6) × (66/6 + 6 × 6)) := 66 × ((6 + 6)/6 + 6) := 6 + ((66 × ((6 + 6)/6 + 6)) − 6/6) := 7 × 77 − (((7 + 7)/7 + 7) + 7) := 7 × 77 − 77/7 := 7/7 + (7 × 77 − 7) := 8 × 8 × 8 + 88/8 := 8 + (8 × 8 × 8 + 8) := 99/9 + (((9 + 9)/9)9 ) := 9 + (((((9 + 9)/9) ) − ((9 + 9)/9)) + 9) Ï 524 := 1 + 11 + (1 + 1)11−1−1 := 4 + ((44 × ((4 + 4) + 4)) + 4/4) 5 := 8 + ((88 + 8 + 8)/8 + 8 × 8 × 8) 9 := 9 + ((((9 + 9)/9)9 ) + ((99 + 9)/9)) Ï 534 := 11 + 11 + (1 + 1)11−1−1 Ï 529 := (1 + 11 + 11)1+1 2 := 2 × (222 − 222) := (22 + 2/2)2 := 22 + (2(2/2+2) ) := 3 + (((3 − 3/3)3×3 ) + 3 × 3) := (33 − 3/3 − 3)3−3/3 := 3 + (33 × (3 + 3) + 333) := (44 × ((4 + 4) + 4)) − 4 := 4/4 + (44 × ((4 + 4) + 4)) := (4 + 4)/4 × (44/4 + 44 ) := 5 + ((55 − 555)/5 + 5) := 555 − (5 × 5 + 5/5) := 5 + (555 − (5 × 5 + 5/5)) := 6 × 66 + (((6 + 6)/6)6/6+6) := 6/6 + (66 × ((6 + 6)/6 + 6)) := 6 + (66 × ((6 + 6)/6 + 6)) := 7 × 77 − (7/7 + 7 + 7) := 8 × 8 × 8 + (88 + 8)/8 := (((9 + 9)/9)9 ) + (99 + 9)/9 Ï 525 := 1 + 1 + 11 + (1 + 1)11−1−1 := ((22 + 2/2)2 ) − 2 − 2 := 3 + ((3 + 3) × (3 × 33 + 3 + 3)) := 444 + (4 − 4/4)4 := 5 × (5 × (5 × 5 − 5) + 5) := (6 − 6/6) × (666/6 − 6) := 7 × 77 − (7 + 7) := 8 × 8 × 8 + (88 + 8 + 8)/8 := (((9 + 9)/9)9 ) + ((99 + 9 + 9)/9) Ï 526 := (1 + 1) × ((1 + 1) × 11 × (1 + 11) − 1) := 7 × 77 + (7 − 77)/7 := 7 × 77 + ((7 + 7)/7 − 7) := 8 + ((8 × 8 × 8 + 8/8) + 8) := 8 × 8 × 8 + (88 + 88)/8 := 9 + (((((9 + 9)/9)9 ) − 9/9) + 9) := (((9 + 9)/9)9 ) + ((99 + 99)/9) Ï 530 := 1 + (1 + 11 + 11)1+1 Ï 535 := 1 + 11 + 11 + (1 + 1)11−1−1 := 2 + (22 × (22 + 2)) := 2 + ((((22 + 2/2)2 ) + 2) + 2) := (3 × (3 + 3)) + ((3 − 3/3)3×3 ) := (3333 − (3 × 3 + 3)3 )/3 := (4 + 4)/4 + (44 × ((4 + 4) + 4)) := (4/4 + 4) × (444/4 − 4) := 555 − 5 × 5 := 5 + (555 − 5 × 5) := (6 + 6)/6 + (66 × ((6 + 6)/6 + 6)) := 6 + ((66 × ((6 + 6)/6 + 6)) + 6/6) := 7 × 77 − ((7 + 7)/7 + 7) := 7 + (7 × 77 − (77/7)) := 8 + ((8 × 8 × 8 + (8 + 8)/8) + 8) := 8 + (((8 × 8 × 8 − 8/8) + 8) + 8) 9 := 9 + ((((9 + 9)/9) ) + 9) := (((99 × 99) − 9)/(9 + 9)) − 9 Ï 531 := 1 + 1 + (1 + 11 + 11)1+1 Ï 536 := (1 + 1) × (1 + 1) × (1 + 1 + 11 × (1 + 11)) 2 2 := (22 × (22 + 2)) − 2 := 2 + ((22 + 2/2) ) := 2 + ((2(2/2+2) ) + 22) := 3 + (((3 − 3/3)3×3 ) + 33/3) := 3 × ((3 × (33 + 33)) − 3) := 33 + (((3 − 3/3)3×3 ) − 3) := 4 + ((44 × ((4 + 4) + 4)) − 4/4) := 4 + ((44 × ((4 + 4) + 4)) + 4) := (44 × ((4 + 4) + 4)) − (4 + 4)/4 := 5 + ((5 + 5/5)/(5/5 + 5)) := 5/5 + (555 − 5 × 5) := 5 + ((555 − 5 × 5) + 5/5) := 6 + (((6 + 6)/6 + 6) × (66 − 6/6)) := 6 + ((6 − 6/6) × (666/6 − 6)) := ((6 + 6)/6 + 6) × (66 + 6/6) := 7/7 + (7 × 77 − (7 + 7)) := 7 × 77 − (7/7 + 7) := 7 × 77 − (7 + 7 + 7)/7 := 8 + ((8 × 8 × 8 − ((8 + 8)/8)) + 8) := 8 + (8 × 8 × 8 + 88/8) := 8 + (8 × 8 × 8 + 8 + 8) := 9 × 9 + (((9 × 9 × 99) − 9)/(9 + 9)) := 9 × 9 × 9 − (99 + 99) := (((99 × 99) + 9)/(9 + 9)) − 9 5 Ï 527 := (1 + 11 + 11)1+1 − 1 − 1 Ï 532 := 1 + 1 + 1 + (1 + 11 + 11)1+1 Ï 537 := 1 + (1 + 1) × (1 + 1) × (1 + 1 + 11 × (1 + 11)) := ((22 + 2/2)2 ) − 2 := 2 + ((22 × (22 + 2)) + 2) := 2 × (2 + 2) + ((22 + 2/2)2 ) := 3 + ((((3 − 3/3)3×3 ) + 3 × 3) + 3) := 3 + ((33 − 3/3 − 3)3−3/3 ) := (3 × (3 × (33 + 33))) − 3 := (44 × ((4 + 4) + 4)) − 4/4 := 4 + (44 × ((4 + 4) + 4)) := (4/4 + 4)4 − (44 + 44) := 555 + ((5 + 5)/5 − (5 × 5 + 5)) := 555 + ((5 + 5)/5 − 5 × 5) 6 := 5 + (((5 + 5)/5 − 5 × 5) + 555) := (66 × ((6 + 6)/6 + 6)) − 6/6 := (6/6 + 6) × ((((6 + 6)/6) + 6) + 6) := 666/6 + ((6 × (66 + 6)) − 6) := 7 × 77 − (77 + 7)/7 := 7 × 77 − 7 := 7 × 77 − (7 + 7)/7 := 8 + ((8 × 8 × 8 − 8/8) + 8) := 8 + (((88 + 8)/8) + 8 × 8 × 8) := 8 + (((8 × 8 × 8 + 8/8) + 8) + 8) := 9 × 9 + (((9 × 9 × 99) + 9)/(9 + 9)) := 9 + ((((9 + 9)/9)9 ) + (99/9)) := 9 × (9 × 9 − 9) − 999/9 45 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 538 := 11 + ((1 + 11 + 11)1+1 − (1 + 1)) := 22 + (2 × (2 2×(2+2) + 2)) Ï 543 := (1111 − 1)/(1 + 1) − 1 − 11 := 2 2+2 2 + (((22 + 2/2) ) − 2) Ï 548 := (1111 − 11)/(1 + 1) − 1 − 1 := 222 + 22+2+2 := 33 + (((3 − 3/3)3×3 ) − 3/3) := 3 + (3 × (3 × (33 + 33))) := 3 + (((3 − 3/3)3×3 ) + 33) := 4 + ((4 + 4)/4 × (44/4 + 44 )) := ((4 + 4) × (4 × 4 × 4 + 4)) − 4/4 := 4 + ((4 + 4) × (4 × 4 × 4 + 4)) := 555 − (((55 + 5)/5) + 5) := 555 − (55 + 5)/5 := 555 − ((5 + 5)/5 + 5) := 666 − (((6 + 6)/6)6/6+6) := 666/6 + (6 × (66 + 6)) := 666 − ((666 + 6)/6 + 6) := 7 × 77 − 7/7 := 7 × 77 + (77/7 − 7) := 7 + (7 × 77 + ((7 + 7)/7)) := 8 + (((8 × 8 × 8 + (8 + 8)/8) + 8) + 8) := 8 + ((((8 × 8 × 8 − 8/8) + 8) + 8) + 8) := 8 × 8 + 88 × 88/(8 + 8) := 9 + ((((((9 + 9)/9)9 ) − 9/9) + 9) + 9) := (((99 × 99) − 9)/(9 + 9)) − 9/9 := 9 + ((((((9 + 9)/9)9 ) + 9) + 9) + 9) Ï 539 := 11 + ((1 + 11 + 11)1+1 − 1) Ï 544 := (1111 − 1)/(1 + 1) − 11 Ï 549 := (1111 − 11)/(1 + 1) − 1 := 2 × (22×(2+2) + 22+2 ) := 22/2 + (22 × (22 + 2)) := 22 + (((22 + 2/2)2 ) − 2) 3 := 33 + ((3 − 3/3)3×3 ) := (((3 × 3 + 3) + 3)/3) − 33 := 3 × ((3 + 3)3 − 33) := 44/4 + (44 × ((4 + 4) + 4)) := (4 + 4) × (4 × 4 × 4 + 4) := ((44 × 44 + 44 ) + 4)/4 := 555 − (55/5 + 5) := 555 − 55/5 := 555 − (5/5 + 5) := (6/6 + 6) × (66/6 + 66) := 666 − ((666 + 66)/6) := 666 − (666/6 + 6) := 7 × 77 := 7 + (7 × 77 − ((7 + 7)/7)) := 7 × 77 + (77 − 7)/7 := 8 + ((8 × 8 × 8 + 88/8) + 8) := 8 + ((8 × 8 × 8 + 8 + 8) + 8) := 8 × 8 × 8 + 888/(8 + 8 + 8) := ((99 × 99) − 9)/(9 + 9) := 9 × (9 × 9 − 9) − 99 9 := 9 + (((((9 + 9)/9) ) + 9) + 9) Ï 540 := 11 + (1 + 11 + 11)1+1 Ï 545 := (1 + 1111)/(1 + 1) − 11 := 2 × ((2 × (22 + 2)) + 222) 3×3 3 Ï 550 := (1111 − 11)/(1 + 1) := 22+2 + ((22 + 2/2)2 ) := 22 + (22 × (22 + 2)) := 3/3 + ((3 + 3)3 + 333) := 3 × (3 × (3 + 33)) := 33 + ((3 − 3/3) := (4 − 4/4) × ((4 × 44) + 4) := 4/4 + ((4 + 4) × (4 × 4 × 4 + 4)) := (4/4 + 4) × (444 − 4)/4 := (5 + 5) × (55 − 5/5) := 555 − 5 − 5 := (5 + 5) × 55 := (6 + 6 + 6) × (6 × 6 − 6) := 6 + ((6/6 + 6) × (66/6 + 66)) := (6 − 6/6) × ((666 − 6)/6) := 7/7 + 7 × 77 := 7 + (7 × 77 − 7/7) := 7 × 77 + 77/7 := 8 + ((((88 + 8)/8) + 8 × 8 × 8) + 8) := 8 + ((((8 × 8 × 8 + 8/8) + 8) + 8) + 8) := (8888 − 88)/(8 + 8) := (9 + 9 + 9) × (99/9 + 9) := ((99 × 99) + 9)/(9 + 9) := 9/9 + (9 × (9 × 9 − 9) − 99) Ï 541 := 1 + (11 + (1 + 11 + 11)1+1 ) := 2 + ((22 × (22 + 2)) + 22/2) 3 ) Ï 546 := 1 + ((1 + 1111)/(1 + 1) − 11) := 222 + ((2 2+2 2 Ï 551 := 1 + (1111 − 11)/(1 + 1) := 22 + ((22 + 2/2)2 ) + 2) ) := (3 + 3)3 + (333 − 3) := (3333 − 33 )/(3 + 3) := 4 + ((4/4 + 4) − (44 + 44)) := (4 + 4)/4 + ((4 + 4) × (4 × 4 × 4 + 4)) := 444 + (444/4 − 4) := 5/5 + ((5 + 5) × (55 − 5/5)) := 5/5 + (555 − 5 − 5) := 5/5 + (5 + 5) × 55 := 6/6 + ((6 + 6 + 6) × (6 × 6 − 6)) := 6 + ((6 + 6 + 6) × (6 × 6 − 6)) := 66/6 + ((6 + 6 + 6) × (6 × 6 − 6)) := 7 × 77 + (7 + 7)/7 := 7 + 7 × 77 := 7 × 77 + (77 + 7)/7 := 8 × (88 − 8) − (88/8 + 88) := (8 − 8/8) × ((8 − 88)/8 + 88) := 8 × (88 − 8) − (8/8 + 88) := 9 + (((((9 + 9)/9)9 ) + (99/9)) + 9) := ((9999 − 9)/(9 + 9)) − 9 := (9999 − 9 × 9)/(9 + 9) := 3/3 + (3 × (3 × (3 + 33))) 4 Ï 542 := 1 + (1 + (11 + (1 + 11 + 11)1+1 )) 2 := 2 + (((22 + 2/2) ) + 22/2) Ï 547 := 1 + (1 + ((1 + 1111)/(1 + 1) − 11)) 2 := 2 + (((22 + 2/2) ) + 2 2+2 ) Ï 552 := 1 + (1 + (1111 − 11)/(1 + 1)) := (22 + 2) × (22 + 2/2) := 3 + ((((3 × 3 + 3) + 3)/3) − 33) := 3 + ((3 + 3)3 + 333) := (4 + 4)/4 × ((44/4 + 44 ) + 4) := ((44 × 44 − 4) + 44 )/4 := 44 + ((44 − 4) + 44 ) := 555 − (55 + 5 + 5)/5 := 555 + ((5 + 5)/5 − 5 − 5) := 555 + ((5 + 5)/5 − 5) := 6 + (((6 + 6)/6 + 6) × (66 + 6/6)) := 6 + (((6 + 6 + 6) × (6 × 6 − 6)) + 6/6) := 6 + (((6 + 6 + 6) × (6 × 6 − 6)) + 6) := 7 × 77 + (7 + 7 + 7)/7 := 7 + (7 × 77 + 7/7) := 7 + ((7 × 77 − 7/7) + 7) := 8 + ((88 + 88)/8 + 8 × 8 × 8) := (8888 − 8)/(8 + 8) − 8 := 8 × (88 − 8) − 88 := ((9999 − 9 × 9)/(9 + 9)) − 9 := ((9999 + 9)/(9 + 9)) − 9 := (9 − 9/9) × (9 × 9 − ((99 + 9)/9)) 3×3 := 3 + (((3 − 3/3) 3 )+3 ) 3 46 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 553 := (1111 − 1)/(1 + 1) − 1 − 1 Ï 558 := 1 + (1 + (1 + 1111)/(1 + 1)) Ï 563 := 1 + (1 + ((11 + 1111)/(1 + 1))) := 2 + (((22 + 2/2) ) + 22) := 2 + ((((22 + 2) ) − 22) + 2) := ((22 + 2)2 ) − (22/2 + 2) := ((3333 + 3)/(3 + 3)) − 3 := 3 × (((3 + 3)3 − 33) + 3) := ((3 × 3 + 3 + 3)3 + 3)/(3 + 3) := 4 + (((44 × 44 + 4 ) + 4)/4) := 4 + ((444 − 4)/4 + 444) := 4 + ((444/4 + 444) + 4) := 555 − (5 + 5)/5 := 5 + (555 − (5 + 5)/5) := 5 + ((555 − (5 + 5)/5) + 5) := (6/6 + 6) × (66 + 6/6 + 6 + 6) := 666 − 6 × (6 + 6 + 6) := 666 − ((6 × 6 + 66) + 6/6) 2 4 2 := 7 + (7 × 77 + 7) := 7 + ((77 + 7)/7 + 7 × 77) := 7 + ((7777 + 7)/(7 + 7)) := 8/8 + (8 × (88 − 8) − 88) := (8/8 + 8) × (8 × 8 − ((8 + 8)/8)) := 8 + (8888 − 8)/(8 + 8) := 9 + (((99 × 99) − 9)/(9 + 9)) := (9 × (9 × 9 − (9 + 9))) − 9 := 9 + ((((99 × 99) + 9)/(9 + 9)) + 9) Ï 554 := (1111 − 1)/(1 + 1) − 1 Ï 559 := 1 + (1 + (1 + (1 + 1111)/(1 + 1))) Ï 564 := ((1 + 1) × (1 + 11))1+1 − 1 − 11 := ((22 + 2)2 ) − 22 := 2 + (((2222 − 2)/(2 + 2)) + 2) := 222 + (2 × 2 × (22 − 2)) := (3333 − 3 × 3)/(3 + 3) := 3 + ((3333 + 3)/(3 + 3)) := (3 × ((3 + 3)3 − 33 )) − 3 := 444 + (444 − 4)/4 := 4 + (444/4 + 444) := (4 × (44 − 4)) − 444 := 555 − 5/5 := 5 + (555 − 5/5) := 5 + (555 − 5/5 + 5) := 666 − (666 + 6)/6 := 6/6 + (666 − 6 × (6 + 6 + 6)) := (6 + 6) × (66/6 + 6 × 6) := 7 + ((7 × 77 + 7/7) + 7) := 7 + (((7 × 77 − 7/7) + 7) + 7) := 7 + ((7 × 77 + (77/7)) + 7) := (8 + 8)/8 + (8 × (88 − 8) − 88) := 888/8 + 8 × (8 × 8 − 8) := 8 + ((8888 + 8)/(8 + 8)) := 9 + (((99 × 99) + 9)/(9 + 9)) := 9/9 + ((9 × (9 × 9 − (9 + 9))) − 9) := 9 + ((9999 − 9)/(9 + 9)) Ï 555 := (1111 − 1)/(1 + 1) Ï 560 := (11 − 1) × (1 + 111)/(1 + 1) Ï 565 := ((1 + 1) × (1 + 11))1+1 − 11 := (2222 − 2)/(2 + 2) := ((22 + 2)2 ) − 22+2 := ((22 + 2)2 ) − 22/2 := (3333 − 3)/(3 + 3) := (3333 + 33 )/(3 + 3) := ((3 × 3 + 3)3 − 33)/3 := 444 + 444/4 := 4 + ((44 + 44 ) + 44 ) := 4 + ((4/4 + 4)4 − 4 × 4 × 4) := 555 := 5 + 555 := 5 + 555 + 5 := (6 − 6/6) × 666/6 := (6 − 6/6) × (666 + 6)/6 := 6/6 + ((6 + 6) × (66/6 + 6 × 6)) := (7777 − 7)/(7 + 7) := 7 + ((7 × 77 + 7) + 7) := 7 + (((77 + 7)/7 + 7 × 77) + 7) := (8888 − 8)/(8 + 8) := (8 − 8/8) × (88 − 8) := 8 × (8 × 8 + 8) − 88/8 := (9999 − 9)/(9 + 9) := (9 − 9/9) × (9 × 9 − 99/9) := 9 + ((9999 + 9)/(9 + 9)) Ï 556 := (1 + 1111)/(1 + 1) Ï 566 := 11 + (1111 − 1)/(1 + 1) Ï 561 := (11 + 1111)/(1 + 1) := 2 + (((22 + 2)2 ) − 22) := (2222 + 22)/(2 + 2) := ((2 − 22)/2) + ((22 + 2)2 ) := (3333 + 3)/(3 + 3) := 33 × ((33/3 + 3) + 3) := (3 × ((3 + 3)3 − 33 )) − 3/3 4 4 4 := 44 + (4 + 4 ) := (4/4 + 4) − 4 × 4 × 4 := 4 + (((4 − 44 )/4) + (4/4 + 4)4 ) := 5/5 + 555 := 5 + (555 + 5/5) := 555 + 55/5 := (6666 + 6)/(6 + 6) := 6 + ((6 − 6/6) × 666/6) := 6 + ((6 − 6/6) × (666 + 6)/6) := (7777 + 7)/(7 + 7) := 7 + (((7 × 77 + 7/7) + 7) + 7) := 77 + (7 × (77 − 7) − 7/7) := (8888 + 8)/(8 + 8) := 8/8 + ((8 − 8/8) × (88 − 8)) := (8 − 88)/8 + 8 × (8 × 8 + 8) := (9999 + 9)/(9 + 9) := (9999 + 99)/(9 + 9) := (9 × (9 × 9 − (9 + 9))) − 9/9 Ï 557 := 1 + (1 + 1111)/(1 + 1) Ï 562 := 1 + ((11 + 1111)/(1 + 1)) 2 2+2 ) Ï 567 := 11 + (1 + 1111)/(1 + 1) := 2 + (((22 + 2)2 ) − 22/2) := 2 + ((2222 − 2)/(2 + 2)) := 2 + (((22 + 2) ) − 2 := (3333 + 3 × 3)/(3 + 3) := ((3 × 3 + 3 + 3)3 − 3)/(3 + 3) := 3 × ((3 + 3)3 − 33 ) := 44 + ((4/4 + 44 ) + 44 ) := ((4 − 44 )/4) + (4/4 + 4)4 := ((4/4 + 4) + 4) × ((44 − 4)/4) := 555 + (5 + 5)/5 := 5 + (555 + (5 + 5)/5) := 555 + (55 + 5)/5 := 6 + (((6 − 6/6) × 666/6) + 6) := 6/6 + (6666 + 6)/(6 + 6) := 6 + (6666 + 6)/(6 + 6) := 7 + (7 × 77 + (77/7)) := 7 + ((7777 − 7)/(7 + 7)) := 77 + 7 × (77 − 7) := 8 × (8 × 8 + 8) − (88/8 + 8) := (8 + 8)/8 + ((8 − 8/8) × (88 − 8)) := (8/8 + 8) × (8 × 8 − 8/8) := (9 × (9 × 9 − (9 + 9))) − 9/9 − 9 := 9 + ((((99 × 99) − 9)/(9 + 9)) + 9) := 9 × (9 × 9 − (9 + 9)) 47 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 568 := 1 + (11 + (1 + 1111)/(1 + 1)) Ï 573 := ((1 + 1) × (1 + 11))1+1 − 1 − 1 − 1 Ï 578 := 1 + (1 + ((1 + 1) × (1 + 11))1+1 ) := ((22 + 2)2 ) − 2 × (2 + 2) := ((22 + 2)2 ) − 2/2 − 2 := 2 + ((22 + 2)2 ) := 3 + (((3 × 3 + 3)3 − 33)/3) := ((3 × 3 + 3)3 /3) − 3 := 3 + (((3 × 3 + 3)3 − 3)/3) := 4 + ((4 × (44 − 4)) − 444) := (4/4 + 4)4 − (44 + 4 + 4) := 4/4 + ((4/4 + 4)4 − (44 + 4)) := (55 − 5 − 5)/5 − 55 := 5 + ((55 − 5 − 5)/5 − 55) := 5 × 5 + (555 − (5 + 5)/5) := 6 + ((6666 + 6)/(6 + 6) + 6) := 66 + (666/6 + 6 × 66) := (6 + 6)/6 + (6 × ((6 × 6 − 6) + 66)) := 7/7 + (7 × (77 − 7) + 77) := 7 × (77 + 7) − (7/7 + 7 + 7) := ((7 − 77)/7) + 7 × (77 + 7) := 8 × (8 × 8 + 8) − 8 := 8 + (8 × (8 × 8 + 8) − 88/8) := (8 + 8)/8 + 8 × (8 × 8 + 8) := 9/9 + (9 × (9 × 9 − (9 + 9))) := 9 + (((9999 − 9)/(9 + 9)) + 9) := 99/9 + (9 × (9 × 9 − (9 + 9))) Ï 569 := 1 + (1 + (11 + (1 + 1111)/(1 + 1))) Ï 574 := ((1 + 1) × (1 + 11))1+1 − 1 − 1 Ï 579 := 1 + (1 + (1 + ((1 + 1) × (1 + 11))1+1 )) := 2 + ((((22 + 2)2 ) − 22/2) + 2) := ((22 + 2)2 ) − 2 := 2 + (((22 + 2)2 ) + 2/2) := (((3 × 3 + 3)3 − 3)/3) − (3 + 3) := (((3 × 3 + 3)3 + 3)/3) − 3 := 3 + ((3 × 3 + 3)3 /3) := 4 + (((4/4 + 4)4 − 4 × 4 × 4) + 4) := 44 + (((44 − 4 − 4)/4) + 44 ) := 4 × 44 − (444 + 4/4) := (55 − 5)/5 − 55 := 5 + ((55 − 5)/5 − 55) := 5 × 5 + (555 − 5/5) := 66 + (((6 + 6) × (6 × 6 + 6)) − 6/6) := (6 × ((6 × 6 − 6) + 66)) − (6 + 6)/6 := 6 × 6 × 6 + 66 × 66/(6 + 6) := 7 + (((7777 − 7)/(7 + 7)) + 7) := 7 × (77 + 7) − (7 + 7) := 7 × (77 + 7) − ((7 + 7)/7 + 7) := 8/8 + (8 × (8 × 8 + 8) − 8) := 8 × (8 × 8 + 8) − (8 + 8)/8 := 88/8 + (8 × (8 × 8 + 8) − 8) := (9 + 9)/9 + (9 × (9 × 9 − (9 + 9))) := (9 − ((9 + 9)/9)) × (9/9 + 9 × 9) := ((99 + 9)/9) + (9 × (9 × 9 − (9 + 9))) Ï 570 := (11 − 1) × (1 + (1 + 111)/(1 + 1)) Ï 575 := ((1 + 1) × (1 + 11))1+1 − 1 Ï 580 := (1 + 1) × ((1 + 1) × (1 + (1 + 11)1+1 )) := ((22 + 2)2 ) − (2 + 2 + 2) := ((22 + 2)2 ) − 2/2 := 2 + (((22 + 2)2 ) + 2) := 3 + (3 × ((3 + 3)3 − 33 )) := ((3 × 3 + 3)3 − 3)/3 := 3 + (((3 × 3 + 3)3 + 3)/3) := 444 + ((44 − 4)/((4 + 4)/4)) := 44 + (((44 − 4)/4) + 44 ) := 4 × 44 − 444 := 55 /5 − 55 := 5 + (55 /5 − 55) := 5 × 5 + 555 := 66 + ((6 + 6) × (6 × 6 + 6)) := (6 × ((6 × 6 − 6) + 66)) − 6/6 := (6 − 6/6) × (((666 − 6)/6) + 6) := 7 × (77 + 7) − (77/7 + 7) := 7/7 + (7 × (77 + 7) − (7 + 7)) := 7 × (77 + 7) − (7/7 + 7) := (8 + 8)/8 + (8 × (8 × 8 + 8) − 8) := 8 × (8 × 8 + 8) − 8/8 := 8 × (8 × 8 + 8) + (8/((8 + 8)/8)) := 9 + ((9999 + 99)/(9 + 9)) := 9 + ((9 × (9 × 9 − (9 + 9))) − 9/9) := 9 × 9 + (((9 × 999) − 9)/(9 + 9)) Ï 571 := 1 + (11 − 1) × (1 + (1 + 111)/(1 + 1)) Ï 576 := ((1 + 1) × (1 + 11))1+1 Ï 581 := 1 + ((1 + 1) × ((1 + 1) × (1 + (1 + 11)1+1 ))) := ((22 + 2)2 ) − (2/2 + 2 + 2) := (22 + 2)2 := 2 + ((((22 + 2)2 ) + 2/2) + 2) := (((3 × 3 + 3)3 + 3)/3) − (3 + 3) := (3 × 3 + 3)3 /3 := 3 + ((((3 × 3 + 3)3 − 3)/3) + 3) := ((44 × (44 + 4 + 4)) − 4)/4 := 4 × (4 × (4 × (4 + 4) + 4)) := (4/4 + 4)4 − 44 := (55 + 5)/5 − 55 := 5 + ((55 + 5)/5 − 55) := 5 × 5 + (555 + 5/5) := 66 + (((6 + 6) × (6 × 6 + 6)) + 6/6) := 6 × ((6 × 6 − 6) + 66) := 6 + ((6 × ((6 × 6 − 6) + 66)) − 6/6) := 7 + (((7 × 77 + (77/7)) + 7) + 7) := (77 + 7)/7 × (7 × 7 − 7/7) := 7 × (77 + 7) − 7 := 8 + ((8888 − 8)/(8 + 8) + 8) := 8 × (8 × 8 + 8) := 8 + ((8 × (8 × 8 + 8) − 88/8) + 8) := 9 + (((((99 × 99) − 9)/(9 + 9)) + 9) + 9) := 9 + (9 × (9 × 9 − (9 + 9))) := 9 × 9 + (((9 × 999) + 9)/(9 + 9)) Ï 572 := 11 + ((11 + 1111)/(1 + 1)) Ï 577 := 1 + ((1 + 1) × (1 + 11))1+1 Ï 582 := (1 + 1) × (1 + ((1 + 1) × (1 + (1 + 11)1+1 ))) := 22 × (22 + 2 + 2) := 2/2 + ((22 + 2)2 ) := 2 + ((((22 + 2)2 ) + 2) + 2) := (((3 × 3 + 3)3 − 3)/3) − 3 := ((3 × 3 + 3)3 + 3)/3 := 3 + (((3 × 3 + 3)3 /3) + 3) := 44 + (44 × ((4 + 4) + 4)) := (4/4 + 4)4 − (44 + 4) := 4/4 + ((4/4 + 4)4 − 44) := (55 + 5 + 5)/5 − 55 := 5 + ((55 + 5 + 5)/5 − 55) := 5 × 5 + (555 + (5 + 5)/5) := (66/6) × (((6 + 6)/6) − (6 + 6)) := 6/6 + (6 × ((6 × 6 − 6) + 66)) := 6 + (6 × ((6 × 6 − 6) + 66)) := 7777/7 − 7 × 77 := 7 × (77 + 7) − 77/7 := 7/7 + (7 × (77 + 7) − 7) := 88 + 88 × 88/(8 + 8) := 8/8 + 8 × (8 × 8 + 8) := 8 + (8 × (8 × 8 + 8) − (8 + 8)/8) := 9 + (((((99 × 99) + 9)/(9 + 9)) + 9) + 9) := 9 + ((9 × (9 × 9 − (9 + 9))) + 9/9) := 9 × 9 + ((((9 + 9)/9)9 ) − (99/9)) 6 48 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 583 := 11 × ((111 − 1)/(1 + 1) − 1 − 1) 2 Ï 588 := 1 + (11 + ((1 + 1) × (1 + 11))1+1 ) 2+2 2 := 2 + (((((22 + 2) ) + 2/2) + 2) + 2) := (2/2 + 2) × ((2 − 2) ) := 3 + ((((3 × 3 + 3)3 + 3)/3) + 3) := 3 + (3 × (33 × (3 + 3) − 3)) := 222 + (222/2 − 2) := 3 × 33 × (3 + 3) − 3/3 := 44/4 × ((44 − 44)/4) := 4 + ((4 × 4 − 444) + 4) := (4/4 + 4)4 − 4 × (4 + 4) := 55/5 × (55 − (5 + 5)/5) := 5 × 55 + (55 + 5)/(5 + 5) := 55 /5 − ((5 + 5)/5)5 := 6 + ((6 × ((6 × 6 − 6) + 66)) + 6/6) := 666 − (66 + 6 + 6) := 666 − (66 + 6/6 + 6) := ((7 + 7)/7) + (7 × (77 + 7) − 7) := 7 × (77 + 7) := 7 + (7 × (77 + 7) − ((7 + 7)/7)) := 8 + (8 × (8 × 8 + 8) − 8/8) := ((88 + 8)/8) + 8 × (8 × 8 + 8) := 8 × 88 − 888/8 := 9 + ((9 − ((9 + 9)/9)) × (9/9 + 9 × 9)) := (99 − 9/9) × (9 − ((9 + 9 + 9)/9)) := 9 × 9 + (((9 + 9)/9)9 ) Ï 584 := 1 + 11 × ((111 − 1)/(1 + 1) − 1 − 1) := 2 × (2 + 2) + ((22 + 2)2 ) 3 := 3 × 3 + (((3 × 3 + 3) − 3)/3) 4 4 Ï 593 := 11 × ((111 − 1)/(1 + 1) − 1) − 1 Ï 589 := 1 + (1 + (11 + ((1 + 1) × (1 + 11))1+1 )) Ï 594 := 11 × ((111 − 1)/(1 + 1) − 1) := 2 + (((22 + 2)2 ) + 22/2) := 2 + (((22 + 2)2 ) + 22+2 ) := 3 + ((3 × (33 × (3 + 3) − 3)) + 3/3) := 3 × 33 × (3 + 3) 4 := 4 + (4 × 4 − 444) := 4 + (((4/4 + 4) − 44) + 4) := 4/4 + ((4/4 + 4)4 − 4 × (4 + 4)) := 5 + ((555 − 5/5) + 5 × 5) := ((55 − 55)/5) − 5 × 5 := 55/5 × (55 − 5/5) := ((6 + 6)/6 + 6) × (66 + 6/6 + 6) := 666 − (66/6 + 66) := 666 − (66 + 6) := 7 + (7 × (77 + 7) − (77/7)) := 7/7 + 7 × (77 + 7) := 7 + (7 × (77 + 7) − 7/7) := 8 + 8 × (8 × 8 + 8) := 88 + (8 × 8 × 8 − 88/8) := 8 × 88 + ((8 − 888)/8) := 9 × 9 + ((((9 + 9)/9)9 ) − 9) := 9 + ((((9 × 999) − 9)/(9 + 9)) + 9 × 9) := 99 × (9 − ((9 + 9 + 9)/9)) Ï 585 := 11 + (((1 + 1) × (1 + 11))1+1 − (1 + 1)) Ï 590 := (11 − 1) × ((111+1 − 1)/(1 + 1) − 1) Ï 595 := 111 + (11 + 11)1+1 := 22/2 + (((22 + 2)2 ) − 2) := 22+2 + (((22 + 2)2 ) − 2) := 222 + 222/2 := 3 × (33 × (3 + 3) − 3) := 3 + (((3 × 3 + 3)3 + 33)/3) := 3/3 + 3 × 33 × (3 + 3) 4 := 4 + ((4/4 + 4) − 44) := (44 − 4)/4 × (((4 − 4)/4) − 4) := (44 × 44 + 444)/4 := 5 + (555 + 5 × 5) := 5 + ((555 + 5 × 5) + 5) := 55 /5 − (5 × 5 + 5) := (6 − 6/6) × (666/6 + 6) := 666 + (((6 − 66)/6) − 66) := 6/6 + (666 − (66 + 6)) := 7 × (77 + 7) − (7 + 7 + 7)/7 := ((7 + 7)/7) + 7 × (77 + 7) := 7 + 7 × (77 + 7) := 8 + (8 × (8 × 8 + 8) + 8/8) := 8 + ((8 × (8 × 8 + 8) − (8 + 8)/8) + 8) := 8 + (8 × (8 × 8 + 8) + (88/8)) := 9 + ((9 × (9 × 9 − (9 + 9))) + 9) := 9 + ((((9 × 999) + 9)/(9 + 9)) + 9 × 9) := 9/9 + (99 × (9 − ((9 + 9 + 9)/9))) Ï 586 := 11 + (((1 + 1) × (1 + 11))1+1 − 1) 4 Ï 591 := (1 + 1 + 1) × (1 + (1 + 1 + 1 + 11)1+1 ) Ï 596 := 1 + (111 + (11 + 11)1+1 ) := 2 + (((22 + 2)2 ) + 2 × (2 + 2)) := 2 + ((((22 + 2)2 ) + 22/2) + 2) := 22 + (((22 + 2)2 ) − 2) := 3 × 3 + (((3 × 3 + 3)3 + 3)/3) := 3 × 33 × (3 + 3) − 3 := 3 + (3 × 33 × (3 + 3) − 3/3) := 4 + (((4/4 + 4) − 44) + 4/4) := 44/4 + (4 × 4 − 444) := (4 × (44 + 4)) − 444 := 5 + (555 + 5 × 5 + 5/5) := 5 × 5 + (555 + (55/5)) := (55 + 5)/5 − (5 × 5 + 5) := ((((6 + 6)/6)6+6 ) + 6)/(6/6 + 6) := 6 + ((6 − 6/6) × (666/6 + 6)) := 666 − (((6 + 6)/6)6 + 6) := 7 × (77 + 7) − (7 + 7)/7 := 7 × (77 + 7) + (7 + 7 + 7)/7 := 7 + (7 × (77 + 7) + 7/7) := 8 + (8 × (8 × 8 + 8) + ((8 + 8)/8)) := 8 + ((8 × (8 × 8 + 8) − 8/8) + 8) := 8 + (((88 + 8)/8) + 8 × (8 × 8 + 8)) 4 := 9 + (((9 × (9 × 9 − (9 + 9))) + 9/9) + 9) Ï 587 := 11 + ((1 + 1) × (1 + 11))1+1 4 9 := 9 × 9 + ((((9 + 9)/9) ) − ((9 + 9)/9)) Ï 592 := (1 + 1) × (11 × (1 + 1 + 1)1+1+1 − 1) := (9999 + 9 × 9 × 9)/(9 + 9) Ï 597 := 1 + (1 + (111 + (11 + 11)1+1 )) := 22/2 + ((22 + 2)2 ) := 22+2 + ((22 + 2)2 ) := 2 + (222/2 + 222 ) := ((3 × 3 + 3)3 + 33)/3 := 3/3 + (3 × 33 × (3 + 3) − 3) := 3 + 3 × 33 × (3 + 3) := 4 + (44/4 × ((4 − 44)/4)) := 4 × ((4 × (4 × (4 + 4) + 4)) + 4) := 4 + ((4/4 + 4)4 − 4 × (4 + 4)) := 555 + ((5 + 5)/5)5 := 5 + (((5 + 5)/5)5 + 555) := (55 + 5 + 5)/5 − (5 × 5 + 5) := 66/6 + (6 × ((6 × 6 − 6) + 66)) := 6 × 6 + (6666 + 6)/(6 + 6) := 666 − (6 × 6/(6 + 6) + 66) := 7 × (77 + 7) − 7/7 := 77/7 + (7 × (77 + 7) − 7) := 7 + (7 × (77 + 7) + ((7 + 7)/7)) := 88/8 + 8 × (8 × 8 + 8) := 8 + (8 × (8 × 8 + 8) + 8) := 8 + ((8 × 8 × 8 − 88/8) + 88) := 9 + ((9 × (9 × 9 − (9 + 9))) + (99/9)) := 9 × 9 + ((((9 + 9)/9)9 ) − 9/9) := 999/9 + ((9 + 9) × (9 + 9 + 9)) 4 49 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 598 := 11 + (11 + ((1 + 1) × (1 + 11))1+1 ) Ï 603 := 11 × (111 − 1)/(1 + 1) − 1 − 1 2 2 2 := 22+2 × ((2 + 2 + 2)2 + 2) := 22 + ((22/2) − 2) := 22 + ((22 + 2) ) := 3 + (3 × 33 × (3 + 3) + 3/3) 4 Ï 608 := (11 × 111 − 1)/(1 + 1) − 1 − 1 := 33 + (((3 × 3 + 3)3 − 3)/3) := 3 × (33 × (3 + 3) + 3) 4 := (4 + 4)/4 × ((44 − 4/4) + 4 ) := 4 + ((((4 + 4) × (44 + 4 )) − 4)/4) := 44 + ((4 + 4) × 44) := (55 − 5 − 5)/5 − 5 × 5 := (55 − (55 + 55))/5 := ((55 − (55 + 5))/5) − 5 := 666 − (((6 + 6)/6) + 66) := 6/6 + (666 − ((6 + 6)/6)6 ) := 6 + (666 − ((6 + 6)/6)6 ) := 7 × (77 + 7) + (77 − 7)/7 := 7 + ((7 × (77 + 7) + 7/7) + 7) := (7/7 + 7) × (77 − 7/7) := 88 + (8 × 8 × 8 − ((8 + 8)/8)) := 8 + ((8 × (8 × 8 + 8) + (88/8)) + 8) := 8 + (8 × 8 × 8 + 88) := 99 + (((9 × 999) − 9)/(9 + 9)) := 9 + (99 × (9 − ((9 + 9 + 9)/9))) := 9 × 9 × 9 − (((999 + 9)/9) + 9) Ï 599 := 1111 − (1 + 1)11−1−1 := 22 + (((22 + 2)2 ) + 2/2) 3 := ((33/3) ) − (3 3+3 Ï 604 := 11 × (111 − 1)/(1 + 1) − 1 := 2 × (((2 2+2 2 + 2) ) − 22) Ï 609 := (11 × 111 − 1)/(1 + 1) − 1 := 2 + (((22/2)2 + 222 ) + 2) + 3) := 33 + (((3 × 3 + 3)3 + 3)/3) := 33 + ((3 × 3 + 3)3 /3) 4 := 44 + (((4 + 4) × 44) − 4) := (4/4 + 4)4 − 4 × 4 := (5 − 5)/5 − 5 × 5 := (55 × 55 − 5)/5 := ((55 − 55)/5) − 5 := 666 − (66 + 6/6) := 6 + (666 − (((6 + 6)/6) + 66)) := 6 × (6 × 6 + 66) − 6 × 6/(6 + 6) := 77/7 + 7 × (77 + 7) := 7 + ((7 × (77 + 7) + ((7 + 7)/7)) + 7) := 77 + (7 × 77 − 7) := 88 + (8 × 8 × 8 − 8/8) := 88 + ((8/((8 + 8)/8)) + 8 × 8 × 8) := (8 − 8/8) × (88 − 8/8) := (((4 + 4) × (44 + 4 )) − 4)/4 5 := 99 + (((9 × 999) + 9)/(9 + 9)) Ï 600 := (1 + 1) × (1 + 1 + 1) × (11 − 1)1+1 2 9 := 9 × 9 + ((((9 + 9)/9) ) + (99/9)) Ï 605 := 11 × (111 − 1)/(1 + 1) := 9 × 9 × 9 − (999/9 + 9) Ï 610 := (11 × 111 − 1)/(1 + 1) := 2 + (((22 + 2) ) + 22) := 222 + (22/2)2 := 2 + ((2 × 22+2 ) + ((22 + 2)2 )) := 3 + (3 × 33 × (3 + 3) + 3) := 3 + (((33/3)3 ) − 33+3 ) := 33 + (((3 × 3 + 3)3 + 3)/3) := (4/4 + 4)4 − (4 × 4 + 4) := 4/4 + ((4/4 + 4)4 − 4 × 4) := 55 × (55/5) := 55 + 555 := 6 + (666 − 66 − 6/6) := 6 × (6 × 6 + 66) − (6 + 6)/6 := 77 + (7 × 77 − (77/7)) := 7/7 + (7 × 77 − 7 + 77) := 8 × 88 − (88/8 + 88) := 8 + ((8 × 8 × 8 + (8 + 8)/8) + 88) := 99/9 × ((999 − 9)/(9 + 9)) := 99 + ((((9 + 9)/9)9 ) − 9/9) 4 := (4 + 4) × ((44 + 4 )/4) := 5 × (5 × 5 × 5 − 5) := 666 − 66 := (7/7 + 7) × (77 − (7 + 7)/7) := 88 + 8 × 8 × 8 := 99 + ((((9 + 9)/9)9 ) − (99/9)) Ï 601 := 1 + (1 + 1) × (1 + 1 + 1) × (11 − 1)1+1 := 2 + ((((22 + 2)2 ) + 22) + 2/2) := 3 + ((3 × 33 × (3 + 3) + 3/3) + 3) 4 := (4/4 + 4) − ((4 × 4 + 4) + 4) 5 := (5 + 5)/5 − 5 × 5 := 6/6 + (666 − 66) := 7 + ((7 × (77 + 7) − 7/7) + 7) := 8/8 + (8 × 8 × 8 + 88) := 9 + (((((9 + 9)/9)9 ) − 9/9) + 9 × 9) Ï 602 := (1 + 1) × (1 + (1 + 1 + 1) × (11 − 1)1+1 ) 2 := 2 + ((((22 + 2) ) + 22) + 2) Ï 606 := 1 + 11 × (111 − 1)/(1 + 1) := 2 + (2 × (((2 2+2 2 + 2) ) − 22)) Ï 611 := (1 + 11 × 111)/(1 + 1) := 222 + ((22×(2+2) − 2)/2) := 3 + (3 × (33 × (3 + 3) + 3)) := 3 × 33 + ((3 − 3/3)3×3 ) := 4/4 + ((4/4 + 4)4 − (4 × 4 + 4)) := 4 + ((((4 + 4) × 44) − 4/4) + 44 ) := (55 × 55 + 5)/5 := 5 + ((55 × 55 + 5)/5) := 6 + (666 − 66) := 6 × (6 × 6 + 66) − 6/6 := 7 + (7 × (77 + 7) + (77/7)) := 77 + (((7 + 7)/7 − 7) + 7 × 77) := 8 + ((8 × 8 × 8 − ((8 + 8)/8)) + 88) := 88 + (8 × 8 × 8 + 88/8) := 9 + (((9 + 9) × (9 + 9 + 9)) + 999/9) := 99 + (((9 + 9)/9)9 ) Ï 607 := 1 + 1 + 11 × (111 − 1)/(1 + 1) Ï 612 := 1 + (1 + 11 × 111)/(1 + 1) := 2 + ((22/2)2 + 222 ) := 2 × ((22 × (22+2 − 2)) − 2) := 3 + ((3 × (33 × (3 + 3) + 3)) + 3/3) := (3 + 3) × (3 × 33 + 3) := (4 + 4)/4 × ((44 + 4 ) + 4/4) := 44 + (((4 + 4) × 44) − 4/4) := 4 + (((4 + 4) × 44) + 44 ) := (55 + 5 + 5)/5 − 5 × 5 := ((55 × 55 + 5) + 5)/5 := (55 − (55 + 5 + 5))/5 := 666 − ((6 + 6)/6)6 := 6 + ((666 − 66) + 6/6) := 6 × (6 × 6 + 66) 3 := ((33/3) ) − 3 3+3 4 := 7 + (7 × (77 + 7) + 7) := 7 + (7 × (77 + 7) + (77 + 7)/7) := 7 + ((7 × 77 − (77/7)) + 77) := 88 + (8 × 8 × 8 + (8 + 8)/8) := 8 + ((8 × 8 × 8 − 8/8) + 88) := 88 + (((88 + 8)/8) + 8 × 8 × 8) := 9 + ((((9 + 9)/9)9 ) + 9 × 9) := 9 × 9 × 9 − (999 + 99)/9 := 9 × 9 × 9 − (99 + 9 + 9) 50 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 613 := 1 + 1 + (1 + 11 × 111)/(1 + 1) Ï 618 := 1 + 1 + 11 × (1 + 111)/(1 + 1) Ï 623 := 111 + (1 + 1)11−1−1 := 222 + ((22×(2+2) + 2)/2) := 2 + (2 × (22 × (22+2 − 2))) := ((2/2 + 2 + 2)2+2 ) − 2 := 3/3 + ((3 + 3) × (3 × 33 + 3)) := 3 + (3 × (3 + 3)3 − 33) := 3 + (3 × (3 + 3)3 − (33 + 3/3)) := 4 + ((4/4 + 4)4 − 4 × 4) := 4 + ((4/4 + 4)4 − 44/4) := (4/4 + 4)4 − (4 + 4)/4 := (55 − (55 + 5))/5 := (55 − 5 − 5)/5 − 5 := (55 − 5 − 5)/5 := 6/6 + 6 × (6 × 6 + 66) := 6 + 6 × (6 × 6 + 66) := 66/6 + 6 × (6 × 6 + 66) := 7 + ((7 × (77 + 7) + (77/7)) + 7) := 77 + (7 × 77 + ((7 + 7)/7)) := 7 + (7 × 77 + 77) := 8 + (8 × 88 − (88/8 + 88)) := (8 + 8)/8 + 88 × (8 − 8/8) := 8 × 8 × 8 + 888/8 := 9/9 + (9 × 9 × 9 − (99 + 9 + 9)) := 9 × 9 × 9 − 999/9 := 999/9 + (((9 + 9)/9)9 ) Ï 614 := (1 + (1 + 1) × (1 + 11))1+1 − 11 := (2 × (22 × (22+2 − 2))) − 2 3 Ï 619 := 1 + 1 + 1 + 11 × (1 + 111)/(1 + 1) := (2 × 22) + (((22 + 2)2 ) − 2/2) 3+3 := 3 × (3 + 3) − (3/3 + 33) := 3 := (4/4 + 4)4 − 44/4 := 444 + ((4 × 44) − 4/4) + ((3 − 333)/3) Ï 624 := (1 + (1 + 1) × (1 + 11))1+1 − 1 := (22 + 2) × (22 + 2 + 2) := 3 + (3 × ((3 + 3)3 − 3 × 3)) := 4 × (4 × (44 − 4) − 4) := (5 − 55)/5 := (5 − 5)/5 − 5 := (55 − 5)/5 := (6 + 6)/6 + 6 × (6 × 6 + 66) := 6 + (6 × (6 × 6 + 66) + 6/6) := 666 − (6 × 6 + 6) 5 5 := 77 + (7 × 77 − ((7 + 7)/7)) := 77 + (((7 + 7 + 7)/7) + 7 × 77) := (7/7 + 7) × (7/7 + 77) := 8 × 88 − ((8 + 8)/8 + 88) := 8 + ((8 × 8 × 8 + 88/8) + 88) := 8 + 88 × (8 − 8/8) := 999/9 + ((((9 + 9)/9)9 ) − 9) := 9 × 9 × 9 + ((9 − 999)/9) := (9 − 9/9) × (9 × 9 − ((9 + 9 + 9)/9)) Ï 615 := 11 × (1 + 111)/(1 + 1) − 1 Ï 620 := 11 + (11 × 111 − 1)/(1 + 1) − 1 Ï 625 := (1 + (1 + 1) × (1 + 11))1+1 := (2/2 + 2 + 2) × ((22/2)2 + 2) := (2 × 22) + ((22 + 2)2 ) := (2/2 + 2 + 2)2+2 := 3 × (3 + 3)3 − 33 := 3 × (3 + 3)3 − (33 + 3/3) := (3 − 3/3 + 3)3/3+3 := (4 − 44)/4 + (4/4 + 4)4 := 444 + (4 × 44) := (4/4 + 4)4 := 55 /5 − 5 − 5 := 55 /5 − 5 := 55 /5 := (66 × 66 − 666)/6 := 6 + (6 × (6 × 6 + 66) + ((6 + 6)/6)) := (6 − 6/6)6−(6+6)/6 := 77 + (7 × 77 − 7/7) := 77 + ((7 × 77 − 7) + (77/7)) := (7 − ((7 + 7)/7))77/7−7 := 8 × 88 − (8/8 + 88) := 8 × 8 + ((8888 + 8)/(8 + 8)) := 8 + (88 × (8 − 8/8) + 8/8) := 9 × 9 × 9 − (((999 + 9 + 9) + 9)/9) := 9 + ((((9 + 9)/9)9 ) + 99) := 9 × 9 + (((99 × 99) − 9)/(9 + 9)) Ï 616 := 11 × ((1 + 111)/(1 + 1)) := 2 × (22 × (22+2 − 2)) 3 Ï 621 := 11 + (11 × 111 − 1)/(1 + 1) := ((2/2 + 2 + 2) 2+2 )−2−2 3 Ï 626 := 1 + (1 + (1 + 1) × (1 + 11))1+1 := 2 + ((22 + 2) × (22 + 2 + 2)) := 3/3 + (3 × (3 + 3) − 33) := 3 × ((3 + 3) − 3 × 3) := 3/3 + ((3 − 3/3 + 3)3/3+3 ) := (4 + 4) × ((4 − 4/4)4 − 4) := (4/4 + 4)4 − 4 := 4/4 + (4/4 + 4)4 := (55 + 5)/5 − 5 − 5 := (55 + 5)/5 − 5 := (55 + 5)/5 := 6 + (6 × (6 × 6 + 66) − ((6 + 6)/6)) := 6 + ((66 × 66 − 666)/6) := 6/6 + ((6 − 6/6)6−(6+6)/6 ) := 77 + 7 × 77 := 7 + ((7 × 77 − ((7 + 7)/7)) + 77) := (7 × (77 + 7 + 7)) − 77/7 := 88 × (8 − 8/8) := 8 × (88 − 8) − (88/8 + 8) := 8 + ((((8 + 8)/8) − 88) + 8 × 88) := 99/9 × ((999 + 9)/(9 + 9)) := 9 × 9 × 9 − (99 + 9) := 9 + (9 × 9 × 9 − ((999 + 9)/9)) Ï 617 := 1 + 11 × (1 + 111)/(1 + 1) 2 := 22 + (222/2 + 22 ) := 3 3+3 − ((333 + 3)/3) 4 Ï 622 := 11 + (1 + 11 × 111)/(1 + 1) := 222 + (22 − 2)2 Ï 627 := 11 × (1 + ((1 + 111)/(1 + 1))) := 2 + ((2/2 + 2 + 2)2+2 ) 3 := 3/3 + (3 × ((3 + 3) − 3 × 3)) 4 := 33 + 3 × 33 × (3 + 3) := (4/4 + 4) − 4 − 4 := 4/4 + ((4/4 + 4) − 4) := (4 + 4)/4 + (4/4 + 4)4 := (55 + 5 + 5)/5 − 5 − 5 := (55 + 5 + 5)/5 − 5 := (55 + 5 + 5)/5 := 6 + (6 × (6 × 6 + 66) − 6/6) := 66 + (6666 + 6)/(6 + 6) := 666 − ((66 × 6/(6 + 6)) + 6) := 7/7 + (7 × 77 + 77) := 7 + ((7 × 77 − 7/7) + 77) := 77 + (7 × 77 + (77/7)) := 8/8 + 88 × (8 − 8/8) := 8 × 8 × 8 + ((888 − 8)/8) := 88/8 + 88 × (8 − 8/8) := 9 × 9 × 9 − ((999 + 9)/9) := 9/9 + (9 × 9 × 9 − (99 + 9)) := 9 + (9 × 9 × 9 − 999/9) 51 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 628 := 1 + (11 × (1 + ((1 + 111)/(1 + 1)))) 2 2 Ï 633 := (1 + 1 + 1) × ((1 + 1) × 111 − 11) 2+2 := (2 × (22+2 × (22 − 2))) − 2 := 22 + ((2 × (2 + 2 + 2)) ) := 2 × (2 + 2) + ((2/2 + 2 + 2) := 3 + ((3 − 3/3 + 3)3/3+3 ) := 3 + (3 × ((3 + 3)3 − (3 + 3))) := (3 × ((3 + 3)3 − 3)) − 3/3 := 4 + (4 × (4 × (44 − 4) − 4)) := 4 + ((4/4 + 4)4 + 4) := (4 × (4 × (44 − 4))) − (4 + 4)/4 := 5 + (55 − 5 − 5)/5 := 5 + ((55 − 5 − 5)/5 + 5) := ((55 + 55 + 5) + 5)/5 := 666 − (((6 + 6)/6) + 6 × 6) := 666 − (66 × 6/(6 + 6)) := (66/6) × (((6 + 6)/6)6 − 6) := 77 + ((77 + 7)/7 + 7 × 77) := 7 + ((7 × (77 + 7 + 7)) − (77/7)) := 7/7 + (7 × (77 + 7 + 7)) := 8 × (88 − 8) − (88 + 8)/8 := 8/8 + (8 × (88 − 8) − 8) := 8 × (88 − 8) − (8 + 8)/8 := 9 × 9 × 9 − ((9 + 9)/9 + 99) := 9 × 9 × 9 + (((9 + 9 + 9)/9) − 99) := 9 × (9 × 9 − 9) − 9/9 − 9 Ï 629 := 1 + (1 + (11 × (1 + ((1 + 111)/(1 + 1))))) 2+2 ) Ï 638 := 11 × (1 + 1 + (1 + 111)/(1 + 1)) Ï 634 := 1 + ((1 + 1 + 1) × ((1 + 1) × 111 − 11)) Ï 639 := 1 + 11 × (1 + 1 + (1 + 111)/(1 + 1)) := 2 + (((22 + 2 + 2) ) − (2 × 22)) := 2 + ((((2 + 2 + 2)2+2 ) − 22)/2) := 33+3 − (3 × 33 + 3/3) := 3 × (3 + 3)3 − (33/3 + 3) := 3 × ((3 + 3)3 − 3) := 4 + (4/4 + 4)4 := 4 + (((4/4 + 4)4 + 4/4) + 4) := (4 × (4 × (44 − 4))) − 4/4 := 5 + (5 − 5)/5 := 5 + ((55 − 5)/5 + 5) := 5 + (((55 − 5)/5 + 5) + 5) := 666 − (6 × 6 + 6/6) := 6 + (666 − (((6 + 6)/6) + 6 × 6)) := 6 + (666 − (66 × 6/(6 + 6))) := (7 × (77 + 7 + 7)) − (7/7 + 7) := 7 + ((7 × 77 + (77/7)) + 77) := ((7 + 7)/7) + (7 × (77 + 7 + 7)) := 8 × (88 − 8) − 88/8 := (8 + 8)/8 + (8 × (88 − 8) − 8) := 8 × (88 − 8) − 8/8 := 9 × 9 × 9 − (9/9 + 99) := 9 + ((((99 × 99) − 9)/(9 + 9)) + 9 × 9) := 9 × (9 × 9 − 9) − 9 := 2 + (((2/2 + 2 + 2) ) + 2) 5 Ï 630 := (11 − 1) × ((1 + 1 + 1) × (11 + (11 − 1))) 2 Ï 635 := 11 + ((1 + (1 + 1) × (1 + 11))1+1 − 1) Ï 640 := 111 + (1 + 11 + 11)1+1 := 2 + (((2 × (2 + 2 + 2))2 ) + 222 ) := ((((2 + 2 + 2)2+2 ) − 22)/2) − 2 := 2 × (22+2 × (22 − 2)) := 3 × ((3 + 3)3 − (3 + 3)) := (3 × ((3 + 3)3 − 3)) − (3/3 + 3) := 3/3 + (3 × ((3 + 3)3 − 3)) := 4 + ((4/4 + 4)4 + 4/4) := (4/4 + 4)4 + (44 − 4)/4 := 4 × (4 × (44 − 4)) := 5 + 55 /5 := 5 + (55 /5 + 5) := 5 + (55 /5 + 5 + 5) := 666 − 6 × 6 := 6 + (666 − (6 × 6 + 6/6)) := ((66 − 6)/6) × ((6 + 6)/6)6 := (7 × (77 + 7 + 7)) − 7 := (7 × (77 + 7 + 7)) − (7 + 7)/7 := (7 − ((7 + 7)/7)) × ((7 + 7)/7)7 := (8 − 8/8) × ((8 + 8)/8 + 88) := 8 + (88 × (8 − 8/8) + (88/8)) := 8 × (88 − 8) := 9 × 9 × 9 − 99 := 9 × 99 − (((9 + 9)/9)9−9/9 ) := 9/9 + (9 × (9 × 9 − 9) − 9) Ï 631 := 1 + ((11 − 1) × ((1 + 1 + 1) × (11 + (11 − 1)))) Ï 636 := 11 + (1 + (1 + 1) × (1 + 11))1+1 Ï 641 := 1 + 111 + (1 + 11 + 11)1+1 := 2 + ((((2/2 + 2 + 2)2+2 ) + 2) + 2) := 2 × ((22+2 × (22 − 2)) − 2) := 2/2 + (2 × (22+2 × (22 − 2))) := 3/3 + (3 × ((3 + 3)3 − (3 + 3))) := (3 × ((3 + 3)3 − 3)) − 3 := 3 + ((3 × ((3 + 3)3 − 3)) − 3/3) := 4 + ((4/4 + 4)4 + (4 + 4)/4) := (4 × (4 × (44 − 4))) − 4 := 4 × 4 + (4/4 + 4)4 := 5 + (55 + 5)/5 := (55 + 55 )/5 := 5 + ((55 + 55 )/5) := 6/6 + (666 − 6 × 6) := 6 + (666 − 6 × 6) := 666 + ((66/6) − 6 × 6) := 7 + ((7/7 + 7) × (7/7 + 77)) := (7 × (77 + 7 + 7)) − 7/7 := 77/7 + ((7 × (77 + 7 + 7)) − 7) := 8 × (88 − 8) − (8/8 + 8) := 8 × (88 − 8) − (8/((8 + 8)/8)) := 8/8 + 8 × (88 − 8) := 9/9 + (9 × 9 × 9 − 99) := 9 × (9 × 9 − 9) − (99 + 9)/9 := 9 × 9 × 9 + ((99/9) − 99) Ï 632 := 111+1 + ((1 + 1)11−1−1 − 1) 2 Ï 637 := 1 + (11 + (1 + (1 + 1) × (1 + 11))1+1 ) 2+2 ) − 22)/2 Ï 642 := (1 + 1) × ((1 + 1 + 1) × 111 − 1 − 11) := 2 + (2 × (22+2 × (22 − 2))) := (22 + 2 + 2) − 2 × 22 := (((2 + 2 + 2) := 3 + (33+3 − (3 × 33 + 3/3)) := 3 × (3 + 3)3 − 33/3 := 3 + (3 × ((3 + 3)3 − 3)) := (4 × (4 × (44 − 4))) − 4 − 4 := 4 + (((4/4 + 4)4 + 4) + 4) := 4 × 4 + ((4/4 + 4)4 + 4/4) := 5 + (55 + 5 + 5)/5 := (55 + 55 + 5)/5 := 5 + ((55 + 55 + 5)/5) := 666 + (((6 + 6)/6) − 6 × 6) := 6 + ((666 − 6 × 6) + 6/6) := (6 × 6 × (6 + 6 + 6)) − 6 := (7/7 + 7) × ((7 + 7)/7 + 77) := 7 × (77 + 7 + 7) := 777 − (((7 + 7)/7)7 + 7) := 8 × (88 − 8) − 8 := 8 + (8 × (88 − 8) − (88/8)) := (8 + 8)/8 + 8 × (88 − 8) := 9 × 9 × 9 + (((9 + 9)/9) − 99) := 9 × (9 × 9 − 9) − 99/9 := 9 × 9 × 9 + (((99 + 9)/9) − 99) 52 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 643 := (1 + 1) × ((1 + 1 + 1) × 111 − 11) − 1 Ï 648 := (1 + 1) × ((1 + 1) × (11 − 1 − 1))1+1 Ï 653 := (111+1+1 − 1)/(1 + 1) − 1 − 11 := (22 − 2)2 + (222 + 2)/2 := 2 × ((22+2 + 2)2 ) := 222 + ((22/2 + 2)2 ) := 3 + ((3 × ((3 + 3)3 − 3)) + 3/3) := 3 × (3 + 3)3 := 3 + ((3 × (3 + 3)3 − 3/3) + 3) := 4 + ((4 × (4 × (44 − 4))) − 4/4) := (4 + 4) × (4 − 4/4)4 := 44 + ((4/4 + 4)4 − 4 × 4) := 5 + (((55 + 55 + 5) + 5)/5) := 5 × 5 + (55 − 5 − 5)/5 := 5 + ((55 − 5 − 5)/5 + 5 × 5) := 6/6 + ((6 × 6 × (6 + 6 + 6)) − 6) := 6 × 6 × (6 + 6 + 6) := 666 − (6/6 + 6 + 6) := 7 + ((7 × (77 + 7 + 7)) − 7/7) := 77/7 + (7 × (77 + 7 + 7)) := 7 × 77 + (((7 + 7)/7)7 − (7 + 7)) := 88/8 + (8 × (88 − 8) − 8) := 8 + 8 × (88 − 8) := 88 + (8 × (8 × 8 + 8) − 88/8) := 99 + (((99 × 99) − 9)/(9 + 9)) := 9 × (9 × 9 − 9) := 9 × (9 × 9 − 9) + ((9 × 9 + 9)/(9 + 9)) Ï 649 := 11 × ((111+1 − 1)/(1 + 1) − 1) Ï 644 := (1 + 1) × ((1 + 1 + 1) × 111 − 11) := 2 × (((22+2 + 2)2 ) − 2) := (((2 + 2 + 2)2+2 ) + 2)/2 3 3 Ï 654 := (1 + 1) × ((1 + 1 + 1) × (111 − 1 − 1)) := ((22 + 2 + 2)2 ) − 22 := 3 × (3 + 3) − (3/3 + 3) := 3/3 + 3 × (3 + 3) := 4 + (4 × (4 × (44 − 4))) := 4 + (((4/4 + 4)4 + 4 × 4) + 4) := 4 + ((44 − 4)/4 × (44 + 4)/4) := 5 × 5 + ((5 − 5)/5 − 5) := 5 × 5 + (55 − 5)/5 := 5 + ((55 − 5)/5 + 5 × 5) := 666 − ((66 + 66)/6) := 6/6 + (6 × 6 × (6 + 6 + 6)) := 666 − 6 − 6 := 7 + (7 × (77 + 7 + 7)) := 777 − ((7 + 7)/7)7 := 77 + (7 × (77 + 7) − (77/7)) := 8 × (88 − 8) + (8/((8 + 8)/8)) := 8 + (8 × (88 − 8) + 8/8) := 8 + ((8 × (88 − 8) − ((8 + 8)/8)) + 8) := 99 + (((99 × 99) + 9)/(9 + 9)) := 9/9 + 9 × (9 × 9 − 9) := 9 + (9 × (9 × 9 − 9) − ((9 + 9 + 9)/9)) 5 Ï 645 := 1 + (1 + 1) × ((1 + 1 + 1) × 111 − 11) := ((((2 + 2 + 2) 2+2 ) − 2)/2) − 2 Ï 650 := 1 + 11 × ((111+1 − 1)/(1 + 1) − 1) := 2 + (2 × ((2 3 := 3 × (3 + 3) − 3 := 3 + (3 × (3 + 3)3 + 3) 2+2 2 + 2) )) Ï 655 := (1 + 1) × (1 + 1 + 1) × 111 − 11 := 2 + (((22/2 + 2)2 ) + 222 ) := 3 + (3 × (3 + 3)3 − 3/3) := 3 + ((3 × (3 + 3)3 + 3/3) + 3) := (44 − 4)/4 × (44 + 4)/4 := (4 × (4 × (44 − 4) + 4)) − 4/4 := 5 × 5 + (5 /5 − 5) := 5 × (5 × 5 × 5 + 5) := 5 + (55 /5 + 5 × 5) := (6 × 6 × 6 × 6 − 6)/((6 + 6)/6) := 666 + (((6 − 66)/6) − 6) := 666 − 66/6 := 7 + ((7 × (77 + 7 + 7)) + 7/7) := 7 × 77 + 777/7 := 7 + ((7 × (77 + 7 + 7)) + (77/7)) := 8 + ((8 × (88 − 8) − (88/8)) + 8) := 8 + (8 × (88 − 8) + ((8 + 8)/8)) := 8 + ((8 × (88 − 8) − 8/8) + 8) := 9 × (9 × 9 − 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + 9 × (9 × 9 − 9) := 9 + (9 × (9 × 9 − 9) − ((9 + 9)/9)) 4 := 4 + ((4/4 + 4) + 4 × 4) 5 Ï 646 := (1 + 1) × (1 + (1 + 1 + 1) × 111 − 11) := (2 × ((22+2 + 2)2 )) − 2 Ï 651 := (1 + 1 + 1) × ((1 + 1) × (111 − 1 − 1) − 1) := 2 + ((((2 + 2 + 2) 3 := 3/3 + (3 × (3 + 3) − 3) 4 := 4 + (((4/4 + 4) + 4 × 4) + 4/4) 2+2 ) + 2)/2) Ï 656 := 1 + ((1 + 1) × (1 + 1 + 1) × 111 − 11) := 2 + (((22 + 2 + 2)2 ) − 22) := 3 + 3 × (3 + 3)3 := (3 × ((3 + 3)3 + 3)) − 3/3 := 44/4 + (4 × (4 × (44 − 4))) := 4 × (4 × (44 − 4) + 4) := 5 + (((55 + 55 )/5) + 5) := 5 × 5 + (5 + 5)/5 := 5 + ((55 + 5)/5 + 5 × 5) := (6 × 6 × (6 + 6 + 6)) − (6 + 6)/6 := (6 × 6 × 6 × 6 + 6)/((6 + 6)/6) := 666 + (6 − 66)/6 := 7 + ((7 × (77 + 7 + 7)) + ((7 + 7)/7)) := 7 + ((7 × (77 + 7 + 7)) + 7) := 7 + (777 − ((7 + 7)/7)7 ) := 8 + (8 × (88 − 8) − ((8 + 8)/8)) := 88/8 + 8 × (88 − 8) := 8 + (8 × (88 − 8) + 8) := 9 × (9 × 9 − 9) − (9 + 9)/9 := 9 × (9 × 9 − 9) + ((9 + 9 + 9)/9) := 9 + (9 × (9 × 9 − 9) − 9/9) 5 Ï 647 := (1 + 1) × ((1 + 1) × (11 − 1 − 1))1+1 − 1 := (((2 + 2 + 2) 2+2 ) − 2)/2 Ï 652 := (1 + 1) × ((1 + 1 + 1) × (111 − 1 − 1) − 1) := 2 × (((2 3 2+2 2 + 2) ) + 2) 3 Ï 657 := (1 + 1 + 1) × (((1 + 1) × (111 − 1)) − 1) := (2/2 + 2) × (222 − (2/2 + 2)) := 3 × (3 + 3) − 3/3 := 3 + (3 × (3 + 3) + 3/3) := 3 × ((3 + 3)3 + 3) := ((4 + 4) × (4 − 4/4)4 ) − 4/4 := 4 + ((4 + 4) × (4 − 4/4)4 ) := 4 × (4 + 4) + (4/4 + 4)4 := ((55 + 55) + 55 )/5 := 5 × 5 + (55 + 5 + 5)/5 := 55 /5 + ((5 + 5)/5)5 := 666 − ((6 + 6)/6 + 6 + 6) := 666 + (((6 − 66) + 6)/6) := 7 + ((7 − ((7 + 7)/7)) × ((7 + 7)/7) ) := 7 + (((7 × (77 + 7 + 7)) + 7/7) + 7) := 7 + (777/7 + 7 × 77) := 8 + (8 × (88 − 8) − 8/8) := ((88 + 8)/8) + 8 × (88 − 8) := 8 + ((8 × (88 − 8) + 8/8) + 8) := 9 × (9 × 9 − 9) − 9/9 := 9 × (9 × 9 − 9) + ((9 × 9 − 9)/(9 + 9)) := 9 + 9 × (9 × 9 − 9) := (6 × 6 × (6 + 6 + 6)) − 6/6 7 53 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 658 := (1 + 1) × (((1 + 1 + 1) × (111 − 1)) − 1) Ï 663 := (1 + 1 + 1) × ((1 + 1) × 111 − 1) 2 Ï 668 := (1 + 1) × (1 + (1 + 1 + 1) × 111) := 222 + ((22 − 2/2) ) := 2 + ((2/2 + 2) × 222) := 3/3 + (3 × ((3 + 3) + 3)) := 3 + ((3 × ((3 + 3)3 + 3)) + 3) := 3 + (33+3 − ((3/3 + 3)3 )) := 44 + ((4/4 + 4)4 − 44/4) := 4 + 4 × 4 × 44 − (44 + 4/4) := (4 × ((4 × 44) − (4 + 4))) − 4 := (55 + 5)/5 + ((5 + 5)/5)5 := 5 + ((55 + 5)/5 + ((5 + 5)/5)5 ) := 55 + ((55 − (55 + 5))/5) := 666 − ((6 + 6)/6 + 6) := 666 − 6 × 6/(6 + 6) := 666 + (6 + 6)/6 := (22 × (2 × (2 + 2) + 22)) − 2 3 := 77 + (7 × (77 + 7) − 7) := 7 + ((777 − ((7 + 7)/7) ) + 7) := (7 × 7 × (7 + 7)) − (77/7 + 7) := 8 + ((8 × (88 − 8) + ((8 + 8)/8)) + 8) := 88 + (8 × (8 × 8 + 8) − 8/8) := 8 + (8 × 88 − (88/((8 + 8)/8))) := 9 + (9 × (9 × 9 − 9) + 9/9) := 9 + ((9 × (9 × 9 − 9) − ((9 + 9 + 9)/9)) + 9) := 9 + (9 × (9 × 9 − 9) + (99/9)) Ï 659 := ((1 + 1) × ((1 + 1 + 1) × (111 − 1))) − 1 2+2 7 Ï 664 := (1 + 1) × ((1 + 1 + 1) × 111 − 1) Ï 669 := (1 + 1 + 1) × (1 + (1 + 1) × 111) := ((2/2 + 2) × 222) − 2 := (2/2 + 2) × (222 + 2/2) := 33/3 + 3 × (3 + 3)3 := (3 − 3/3) × (333 − 3/3) := 3 + (333 + 333) := 4 × 4 × 44 − (44 + 4/4) := 4 + (44 × (44/4 + 4)) := 44 + (4/4 + 4)4 := ((55 × (55 + 5)) − 5)/5 := 5 + (((55 × (55 + 5)) − 5)/5) := 55 + ((55 − 55)/5) := 666 − 6/6 − 6 := 666 − (6 + 6)/6 := 666 + (6 × 6/(6 + 6)) := 777 − (777/7 + 7) := 77 + (7 × (77 + 7) − 7/7) := ((7 − 77)/7) + ((7 × 7 × (7 + 7)) − 7) := 8 + (8 × (88 − 8) + (88/8)) := 88 + 8 × (8 × 8 + 8) := 8 × 88 − ((88/8 + 8 + 8) + 8) := 99/9 + 9 × (9 × 9 − 9) := (9 − 9/9) × (((9 + 9)/9) + 9 × 9) := 9 + (9 × (9 × 9 − 9) + ((99 + 9)/9)) := (((2 + 2 + 2) ) + 22)/2 Ï 660 := (1 + 1) × ((1 + 1 + 1) × (111 − 1)) := 22 × (2 × (2 + 2) + 22) 3 := 3 + (3 × ((3 + 3) + 3)) Ï 665 := (111+1+1 − 1)/(1 + 1) 2 := ((22 + 2 + 2) ) − 22/2 := 3 3+3 Ï 670 := 1 + ((1 + 1 + 1) × (1 + (1 + 1) × 111)) := 2 + (((2/2 + 2) × 222) + 2) := 3 + ((((3 + 3) × 333) + 3)/3) 3 − ((3/3 + 3) ) := 44 × (44/4 + 4) := 44 + ((4/4 + 4) − 4) := 44 + ((4/4 + 4)4 + 4/4) := 55 × ((55 + 5)/5) := 5 + (55 × ((55 + 5)/5)) := 55 + (55 /5 − (5 + 5)) := 666 − 6 := 666 − 6/6 := 6 + (666 − ((6 + 6)/6)) 4 := 7 × 77 + (((7 + 7)/7)7 − 7) := 77 + 7 × (77 + 7) := ((7 + 7)/7) × (7 × 7 × 7 − (7/7 + 7)) := 8 × 88 − (88/((8 + 8)/8)) := 8/8 + (8 × (8 × 8 + 8) + 88) := ((88 + 8) × (8 − 8/8)) − (8 + 8)/8 := 9 × (9 × 9 − 9) + (99 + 9)/9 := 9 + ((9 × (9 × 9 − 9) − 9/9) + 9) := 9 × (9 × 9 − 9) + ((99 + 99)/9) Ï 661 := 1 + ((1 + 1) × ((1 + 1 + 1) × (111 − 1))) := 2 + ((((2 + 2 + 2) 2+2 ) + 22)/2) 3 Ï 666 := (1 + 1) × (1 + 1 + 1) × 111 Ï 671 := 11 × ((1 + 111+1 )/(1 + 1)) := 2 + ((2/2 + 2) × (222 + 2/2)) := (2/2 + 2) × 222 := 3 + ((3 × ((3 + 3) + 3)) + 3/3) := 3 × (((3 + 3) + 3) + 3) := 33/3 × (((3/3 + 3)3 ) − 3) := 4 + ((4/4 + 4)4 + 4 × (4 + 4)) := ((4 + 4)/4 + 4) × 444/4 := 44/4 × ((44 + 4)/4 − 4) := 5 × 5 + ((55 + 55 )/5) := 555 + 555/5 := 5 + (555/5 + 555) := 6/6 + (666 − 6) := 666 := 6 + (666 − 6/6) := 7 × 77 + (777 + 77)/7 := (7 − 7/7) × 777/7 := (7 × 7 × (7 + 7)) − (7/7 + 7 + 7) := ((88 + 8) × (8 − 8/8)) − 88/8 := (8 − (8 + 8)/8) × 888/8 := ((88 + 8) × (8 − 8/8)) − 8/8 := 9 × (9 × 9 − 9) + ((99 + 9 + 9)/9) := 9 + (9 × (9 × 9 − 9) + 9) := 99/9 × (9 × 9 − (99/9 + 9)) Ï 662 := (1 + 1) × (1 + ((1 + 1 + 1) × (111 − 1))) Ï 667 := 1 + (1 + 1) × (1 + 1 + 1) × 111 Ï 672 := (1 + 1) × ((1 + 1 + 1) × (1 + 111)) := 2 + (22 × (2 × (2 + 2) + 22)) 3 := 2/2 + ((2/2 + 2) × 222) := (2/2 + 2) × (222 + 2) := 3 + (3 × (3 + 3) + 33/3) := (((3 + 3) × 333) + 3)/3 := 33 + (3 × (3 + 3)3 − 3) := (4 + 4)/4 + (44 × (44/4 + 4)) := 4444/4 − 444 := 4 × ((4 × 44) − (4 + 4)) := 5 + (((5 + 5)/5) + 5 /5) := 555 + (555 + 5)/5 := (5/5 + 5) × (555 + 5)/5 := 666 + ((6 + 6)/6 − 6) := 6/6 + 666 3 5 5 := 6 + 666 7 := 7 + (((7 × (77 + 7 + 7)) + (77/7)) + 7) := 7 × 77 + ((7 + 7)/7) := (7 + 7) × (7 × 7 − 7/7) := 88 + (8 × (8 × 8 + 8) − (8 + 8)/8) := 8 + ((8 × (88 − 8) + (88/8)) + 8) := (88 + 8) × (8 − 8/8) := 9 + (((9 × 9 + 9)/(9 + 9)) + 9 × (9 × 9 − 9)) := 9 + ((9 × (9 × 9 − 9) + 9/9) + 9) := (9 − 9/9) × (((9 + 9 + 9)/9) + 9 × 9) 54 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 673 := 1 + ((1 + 1) × ((1 + 1 + 1) × (1 + 111))) Ï 678 := 1 + (1 + (((1 + 1) × (1 + (1 + 11)))1+1 )) Ï 683 := (1 + ((1 + 1)11 ))/(1 + 1 + 1) := ((22 + 2 + 2)2 ) − 2/2 − 2 := 2 + ((22 + 2 + 2)2 ) := 222 + (((22 − 2)2 − 2)/2) := ((33 − 3/3)3−3/3 ) − 3 := 3 + (3 × (3 + 3)3 + 33 ) := ((33/3)3 ) − 3 × (3 + 3)3 := 4 + ((4/4 + 4)4 + 44) := (4 − 44)/4 + (4 × ((4 × 44) − 4)) := (4 × ((4 × 44) − 4)) − (4/4 + 4) := 55 + ((55 − 5 − 5)/5 − 5) := 55 + (55 − 5 − 5)/5 := 5 + ((55 − 5 − 5)/5 + 55) := 6 + (666 + 6/6) := 6 + (666 + 6) := 6 + (666 + (66/6)) := 7 + ((7 − 7/7) × 777/7) := (7 × 7 × (7 + 7)) − (7/7 + 7) := (7 × 7 × (7 + 7)) − (7 + 7 + 7)/7 := 8/8 + ((88 + 8) × (8 − 8/8)) := 8 × 88 + ((8 − 88)/8 − (8 + 8)) := 8 + ((8/8 + 8) × (88/8 + 8 × 8)) := 9 + ((9 − 9/9) × (((9 + 9)/9) + 9 × 9)) := 999/9 + (9 × (9 × 9 − (9 + 9))) := 9 + ((((9 + 9)/9)9 ) + 9 × (9 + 9)) Ï 674 := (1 + 1) × (1 + ((1 + 1 + 1) × (1 + 111))) Ï 679 := (((1 + 1)11 ) − 11)/(1 + 1 + 1) Ï 684 := 1 + ((1 + ((1 + 1)11 ))/(1 + 1 + 1)) := ((22 + 2 + 2)2 ) − 2 := 2 + (((22 + 2 + 2)2 ) + 2/2) := 2 × (2 × (((22/2 + 2)2 ) + 2)) := 33 + (3 × (3 + 3)3 − 3/3) := 3 + ((33 − 3/3)3−3/3 ) := 3 + (3 × (3 + 3)3 + 33) := 4 + (((4/4 + 4)4 + 44) + 4/4) := 4 + (44/4 + 4) × (44 + 4/4) := (4 × ((4 × 44) − 4)) − 4 5 := 55 + ((55 − 5)/5 − 5) := 55 + (5 − 5)/5 := 5 + ((55 − 5)/5 + 55) := 6 + (666 + ((6 + 6)/6)) := 6 + (666 + 6/6 + 6) := 6 + ((666 + 6) + 6) := 7 + (((7 + 7)/7) + 7 × 77) := (7 × 7 × (7 + 7)) − 7 := (7 × 7 × (7 + 7)) − (7 + 7)/7 := 8 + ((8 − (8 + 8)/8) × 888/8) := 8 × 88 − (8/8 + 8 + 8 + 8) := 8 × 88 − (((88 + 8)/8) + 8) := 9 × (9 + 9) + (((9 + 9)/9)9 ) := 9 × 9 × 9 − ((9 × 99 + 9)/(9 + 9)) := (99 × (9 − ((9 + 9)/9))) − 9 7 Ï 675 := (((1 + 1) × (1 + (1 + 11)))1+1 ) − 1 Ï 680 := 1 + ((((1 + 1)11 ) − 11)/(1 + 1 + 1)) Ï 685 := 1 + (1 + ((1 + ((1 + 1)11 ))/(1 + 1 + 1))) := 2 + (((22 + 2 + 2)2 ) + 2) := 22/2 + (((22 + 2 + 2)2 ) − 2) := 33 + (3 × (3 + 3)3 − 3/3) := 33+3 − (33/3 + 33) := (44/4 + 4) × (44 + 4/4) := (4 + 4) × ((4 − 4/4)4 + 4) := 4 × 4 + ((4/4 + 4)4 + 44) := 5 × ((5 × 5 × 5 + 5) + 5) := 55 + 55 /5 := 5 + (55 /5 + 55) := 6 + ((6 × 6/(6 + 6)) + 666) := 6 + ((666 + ((6 + 6)/6)) + 6) := 6 + ((666 + 6/6 + 6) + 6) := (7 × 7 × (7 + 7)) − 77/7 := 7/7 + ((7 × 7 × (7 + 7)) − 7) := (7 × 7 × (7 + 7)) − 7/7 := (8/8 + 8) × (88/8 + 8 × 8) := 8 × 88 − 8 − 8 − 8 := 8 × 88 − (88/8 + 8) := 9 + ((9 × (9 × 9 − 9) + 9) + 9) := 9 × 9 × 9 + ((9 − 9 × 99)/(9 + 9)) := 9 + ((((9 − 9/9) + 9) + 9)(9+9)/9 ) := ((22 + 2 + 2)2 ) − 2/2 := 3 × ((3 + 3)3 + 3 × 3) Ï 676 := ((1 + 1) × (1 + (1 + 11)))1+1 Ï 681 := ((1 + ((1 + 1)11 ))/(1 + 1 + 1)) − 1 − 1 2 := (22 + 2 + 2)2 := 2 + ((((22 + 2 + 2) ) + 2/2) + 2) 3 := (33 − 3/3)3−3/3 := 33 + 3 × (3 + 3) := 4 + (4 × ((4 × 44) − (4 + 4))) := 4 + ((((4/4 + 4)4 + 44) + 4) + 4) 5 Ï 686 := (11 + (((1 + 1)11 ) − 1))/(1 + 1 + 1) := 2 × ((22/2)2 + 222) := (3 − 3/3) × (((3/3 + 3) + 3)3 ) 5 := (4 × ((4 × 44) − 4)) − (4 + 4)/4 := 55 + ((5 + 5)/5 − 5) := 55 + (5 + 5)/5 := 5 + ((55 + 5)/5 + 55) := 666 + (66 − 6)/6 := 66 × (6 + 6) − 666/6 := 6 + (((666 + ((6 + 6)/6)) + 6) + 6) := ((7 − 77)/7) + (7 × 7 × (7 + 7)) := ((7 + 7)/7) + ((7 × 7 × (7 + 7)) − 7) := 7 × 7 × (7 + 7) := 8 × 88 + ((8 − 8 × 8)/((8 + 8)/8)) := 8/8 + (8 × 88 − (8 + 8 + 8)) := 8 × 88 + ((8 − 88)/8 − 8) := 9 × 99 − (999/9 + 99) := (99 − 9/9) × (9 − ((9 + 9)/9)) := (((9 − 9/9) + 9) + 9) (9+9)/9 Ï 677 := 1 + (((1 + 1) × (1 + (1 + 11)))1+1 ) Ï 682 := (((1 + 1)11 ) − (1 + 1))/(1 + 1 + 1) Ï 687 := 11 + (((1 + 1) × (1 + (1 + 11)))1+1 ) := 2/2 + ((22 + 2 + 2)2 ) := 2 + ((((22 + 2 + 2)2 ) + 2) + 2) := 22/2 + ((22 + 2 + 2)2 ) := (((3 + 3) × 333) + 33)/3 := 3/3 + (3 × (3 + 3)3 + 33) := 33+3 − (3 × 3 + 33) := 4 + (((4/4 + 4)4 + 44) + 4) := 44/4 × ((44 − 4 − 4)/4) := (4 × ((4 × 44) − 4)) − 4/4 := 55 + ((5 + 5 + 5)/5 − 5) := 55 + (5 + 5 + 5)/5 := 5 + ((55 + 5 + 5)/5 + 55) := 666 + 66/6 := 6 + ((66 − 6)/6 + 666) := ((6 × 6/(6 + 6))6 ) − (6 × 6 + 6) := (7 × 7 × (7 + 7)) − ((7 + 7)/7 + 7) := 7 + ((7 × 7 × (7 + 7)) − (77/7)) := 7/7 + (7 × 7 × (7 + 7)) := 8 × 88 − (88/8 + 8 + 8) := 8 × 88 − (88 + 88)/8 := 8 × 88 − (8/8 + 8 + 8) := 9 + ((9 × (9 × 9 − 9) + (99/9)) + 9) := 99/9 × (9 × 9 − (9/9 + 9 + 9)) := 9 + ((9 × (9 × 9 − (9 + 9))) + 999/9) 5 5 55 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 688 := (1 + 1) × (11 + (1 + 1 + 1) × 111) := 3 + (3 3+3 Ï 693 := 11 × ((1 + 1 + 1) × (11 + (11 − 1))) − (33/3 + 33)) Ï 698 := (1 + 1 + 1) × (11 + (1 + 1) × 111) − 1 := (2/2 + 2) × ((22 − 22)/2) := 22 + ((22 + 2 + 2)2 ) := 33 × ((3 × (3 + 3)) + 3) := 3 + (33+3 − (3/3 + 33)) 2 := 2 × (2 × (2 × (2 × 2 × 22 − 2))) 4 := 4 × ((4 × 44) − 4) := 44/4 × ((4 − 4)/4) := 44 + (444 − (4 + 4)/4) := (5 × 5 × 5 × 55 + 5)/(5 + 5) := 5 + ((5 × 5 × 5 × 55 + 5)/(5 + 5)) := (5 × (5 + 5 + 5)) + (55 − 5 − 5)/5 := 666 + ((66 + 66)/6) := ((6 × 6/(6 + 6)) ) − 6 × 6 := ((7 + 7)/7) + (7 × 7 × (7 + 7)) := ((66/6) × ((6 + 6)/6)6 ) − 6 := 7 + (7 × 7 × (7 + 7)) := 8 × 88 − 8 − 8 := 777 − ((7 + 7)/7 + 77) := 8 × 88 − 88/8 := 9 × 9 × 9 − ((9 × 9 × 9 + 9)/(9 + 9)) := (8 + 8)/8 + (8 × 88 − 8) := 99 × (9 − ((9 + 9)/9)) := 9 × 9 × 9 − (((99 + 99)/9) + 9) 6 Ï 694 := 11 + ((1 + ((1 + 1)11 ))/(1 + 1 + 1)) Ï 699 := (1 + 1 + 1) × (11 + (1 + 1) × 111) := 2 + (((22 + 2 + 2)2 ) + 22+2 ) := 2 + ((22/2)2 + ((22 + 2)2 )) := 3 + ((3 − 3/3) × (((3/3 + 3) + 3) )) := 3/3 + (33 × ((3 × (3 + 3)) + 3)) := 3 + (33+3 − 33) := 4/4 + (4 × ((4 × 44) − 4)) := (4 − 44)/4 + 4 × 4 × 44 := 44 + (444 − 4/4) Ï 689 := 1 + ((1 + 1) × (11 + (1 + 1 + 1) × 111)) := 2 + (((22 + 2 + 2)2 ) + 22/2) 3 5 := 5 + (((5 − 5)/5 + 55) + 5) 5 := 5 + ((((5 − 5)/5 + 55) + 5) + 5) := (55 − 5)/5 + (5 × (5 + 5 + 5)) := 6 + ((666 + (66/6)) + 6) := 6 + (((66 + 66)/6) + 666) := 777 − (77/7 + 77) := 7 + ((7 × 7 × (7 + 7)) + 7/7) := 6 + (((6 × 6/(6 + 6))6 ) − 6 × 6) := 8/8 + (8 × 88 − (8 + 8)) := 8 × 88 + (8 − 88)/8 := 9 × 9 × 9 + ((9 − 9 × 9 × 9)/(9 + 9)) := 9/9 + (99 × (9 − ((9 + 9)/9))) Ï 690 := 11 + ((((1 + 1)11 ) − 11)/(1 + 1 + 1)) := 2 + (((2/2 + 2) × 222) + 22) := 33 + (3 × ((3 + 3)3 + 3)) := (4 + 4)/4 + (4 × ((4 × 44) − 4)) Ï 695 := 1 + 11 + (1 + (1 + 1)11 )/(1 + 1 + 1) := 222 + (222 − 22/2) := 3 3+3 − (3/3 + 33) := 777 − (7/7 + 77) := 88/8 + (8 × 88 − (8 + 8)) := 9 × (9 × 9 + 9) − 999/9 Ï 700 := 1 + (1 + 1 + 1) × (11 + (1 + 1) × 111) := 2 × ((22 × 22+2 ) − 2) := 3 + ((33+3 − 33) + 3/3) 4 := 4 + (444 − (4/4 + 4)) := 44 + 444 := 5 + ((55 /5 + 55) + 5) := 5 × 5 × (5 × 5 + 5) − 55 := 6 + (((666 + 6) + 6) + 6) := 5 × (((5 × 5 × 5 + 5) + 5) + 5) := 6 × 6 + (666 − 6/6 − 6) := 77/7 + ((7 × 7 × (7 + 7)) − 7) := 6 × 6 + (666 − ((6 + 6)/6)) := 7 + ((7 × 7 × (7 + 7)) + ((7 + 7)/7)) := (8 + 8)/8 + (8 × 88 − (8 + 8)) := 777 − 77 := 8 × 88 − (8/8 + 8) := (9/9 + 9) × (9 × 9 − ((99 + 9)/9)) := 8 × 88 − (8/((8 + 8)/8)) := 9 + ((99 − 9/9) × (9 − ((9 + 9)/9))) := (9/9 + 9) × (9 × 9 − 99/9) Ï 691 := ((1 + 1)11−1 ) − (1 + 1 + 1) × 111 := 2 + ((((22 + 2 + 2)2 ) + 22/2) + 2) := 3 3+3 3 − (33/3 + 3 ) := 4 + ((4 × ((4 × 44) − 4)) − 4/4) 5 Ï 696 := (1 + 1 + 1) × (111 + 111+1 ) := 2 × (2 × ((2 × 2 × 2 × 22) − 2)) := 3 3+3 − 33 Ï 701 := 1 + 1 + (1 + 1 + 1) × (11 + (1 + 1) × 111) := 2/2 + (2 × ((22 × 22+2 ) − 2)) := 33+3 − (33 + 3/3) 4 := 4 + (444 − 4) := 4/4 + (444 + 44 ) 5 := 55 + ((55 + 5 )/5) := 5 + (((55 + 5 )/5) + 55) := (55 + 5)/5 + (5 × (5 + 5 + 5)) := 6 × 6 + (666 − 6/6) := 6 × 6 + (666 − 66/6) := 6 × 6 + (666 − 6) := 7 + ((7 × 7 × (7 + 7)) − ((7 + 7)/7)) := (7 × 7 × (7 + 7)) + (77 − 7)/7 := 7/7 + (777 − 77) := 8 × 88 − (88 + 8 + 8)/8 := 8 × 88 − 8 := 8 + (8 × 88 − (88/8)) := 9 × 9 × 9 − ((99/9 + 9 + 9) + 9) := (9 − 9/9) × (99 − ((99 + 9)/9)) := 9 × 9 × 9 − ((9/9 + 9 + 9) + 9) Ï 692 := (11 × ((1 + 1 + 1) × (11 + (11 − 1)))) − 1 := 2 × (((2 := 3 3+3 2+2 2 + 2) ) + 22) − (3/3 + 33 + 3) := 4 + (4 × ((4 × 44) − 4)) 5 Ï 697 := 1 + (1 + 1 + 1) × (111 + 111+1 ) 2 2 := (22/2) + ((22 + 2) ) := 3/3 + (3 3+3 Ï 702 := (1 + 1) × ((11 × ((11 × (1 + 1 + 1)) − 1)) − 1) := (2 × (22 × 22+2 )) − 2 := 33+3 − 33 − 33) 4 := 4 + (44/4 × ((4 − 4)/4)) 5 := 4 × 4 × 44 − (4 + 4)/4 := 55 + ((55 + 5 + 5)/5) := 5 + (((55 + 5 + 5)/5) + 55) := 55 + (((55 + 55) + 55 )/5) := 6 × 6 + (((6 − 66)/6) + 666) := 6 × 6 + ((666 − 6) + 6/6) := 6 × 6 + 666 := 7 + ((7 × 7 × (7 + 7)) − 7/7) := 77/7 + (7 × 7 × (7 + 7)) := ((7 + 7)/7) + (777 − 77) := 8 × 88 − (88 + 8)/8 := 8/8 + (8 × 88 − 8) := 8 × 88 − (8 + 8)/8 := 99 + ((((9 + 9)/9)9 ) + 9 × 9) := 9 + (9 × 9 × 9 − ((9 × 9 × 9 + 9)/(9 + 9))) := 9 × 9 × 9 − (9 + 9 + 9) 56 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 703 := (11 × ((1 + 1)(1+1)×(1+1+1) )) − 1 Ï 708 := (1 + 11) × ((111+1 − 1)/(1 + 1) − 1) Ï 713 := (1 + (11 + 11)) × (1 + ((11 − 1) × (1 + 1 + 1))) := 2 + (222 + 22 ) := ((2/2 + 2)2+2+2 ) − 22+2 := 3/3 + (33+3 − 33 ) := 3 + ((33+3 − 33 ) + 3) := 33+3 + (33/3 − 33 ) := 4 × 4 × 44 − 4/4 := 4 + 4 × 4 × 44 := 4 + (4 × 4 × 44 + 4/4) + 4 := 5 × 5 + ((55 − 5 − 5)/5 + 55) := ((55 + 5)/5) × (55 − 5/5 + 5) := (55 × (55 + 5 + 5) − (5 + 5))/5 := 6 × 6 + (666 + 6/6) := 6 + (666 + 6 × 6) := 6 × 6 + (666 + (66/6)) := (2 × (22 × 2 2+2 )) − 2/2 2 := 7 + ((7 × 7 × (7 + 7)) + ((77 − 7)/7)) := 7 + ((777 − 77) + 7/7) := 7 + ((777 − (7/7 + 77)) + 7) := 8 × 88 − 8/8 := 8 × 88 + (8/((8 + 8)/8)) := 8 + (8 × 88 + 8/8) := 9/9 + (9 × 9 × 9 − (9 + 9 + 9)) := 9 × 9 × 9 − (((99 + 9)/9) + 9) := 9 × 9 × 9 + (((9 + 9)/9) − (9 + 9)) Ï 704 := 11 × ((1 + 1)(1+1)×(1+1+1) ) Ï 709 := 11 × 111 − (1 + 1)11−1−1 Ï 714 := (1 + 1) × ((1 + 1 + 1) × (111+1 − (1 + 1))) := 2 × (22 × 22+2 ) := 2 + ((222 + 222 ) + 2/2) := (2 + 2 + 2) × ((22/2)2 − 2) := 33/3 × ((3/3 + 3)3 ) := 33+3 − (33/3 + 3 × 3) := 3 + (33+3 − (3 × (3 + 3))) := 4 × (4 × 44) := 4 + 4 × 4 × 44 + 4/4 := 4 × 4 × 44 + (44 − 4)/4 5 5 := 5 + (((5 − 5)/5 + 55) + 5 × 5) := (55 × (55 + 5 + 5) − 5)/5 := (66/6) × ((6 + 6)/6) := 6 + ((666 + 6/6) + 6 × 6) := (6 + 6) × (66 − 6) − 6 := 7 + ((7 × 7 × (7 + 7)) + (77/7)) := 7 + (((7 + 7)/7 − 77) + 777) := 7 + ((777 − 77) + 7) := 8 × 88 := 8 + ((8 × 88 − (88/8)) + 8) := 8 + ((8 + 8)/8 + 8 × 88) := (9 − 9/9) × (99 − (99/9)) := 9 × 9 × 9 − (99/9 + 9) := 9 × 9 × 9 + (((9 + 9 + 9)/9) − (9 + 9)) := 5 × 5 + ((5 − 5)/5 + 55) 6 Ï 705 := 1 + 11 × ((1 + 1)(1+1)×(1+1+1) ) Ï 710 := (11 − 1) × ((1 + 11)1+1 /(1 + 1) − 1) 2 Ï 715 := 11 × (1 + ((1 + 1)(1+1)×(1+1+1) )) := 2/2 + (2 × (22 × 22+2 )) := 2 + ((222 + 22 ) + 2) := 22/2 + (2 × (22 × 22+2 )) := 3 + (33+3 − 33 ) := 33+3 − ((3 × (3 + 3)) + 3/3) := 33+3 − (33/3 + 3) := 4/4 + 4 × 4 × 44 := 4 + 4 × 4 × 44 + (4 + 4)/4 := 44/4 + 4 × 4 × 44 := 5 × 5 + (5 /5 + 55) := 5 + ((55 /5 + 55) + 5 × 5) := 55 × (55 + 5 + 5)/5 := ((66 × ((6 + 6)/6)6 ) + 6)/6 := 6 + ((66/6) × ((6 + 6)/6)6 ) := (66/6) × (66 − 6/6) := 7 + ((7 × 7 × (7 + 7)) + (77 + 7)/7) := 777 + (((77 − 7)/7) − 77) := 7 + (((777 − 77) + 7/7) + 7) := 8/8 + 8 × 88 := 8 + (8 × 88 − ((8 + 8)/8)) := 88/8 + 8 × 88 := 9 + ((9 − 9/9) × (99 − ((99 + 9)/9))) := 9 × 9 × 9 − (9/9 + 9 + 9) := 9 × 9 × 9 + (((9 − 99)/(9 + 9)) − 9) 5 Ï 706 := 1 + 1 + 11 × ((1 + 1)(1+1)×(1+1+1) ) Ï 711 := 1111 − ((1 + 1) × (11 − 1))1+1 Ï 716 := ((1 + 1)11 ) − (1 + 111+1+1 ) := 222 + 222 := (2222/2) − (22 − 2)2 := 2 + ((2 + 2 + 2) × ((22/2)2 − 2)) := 3 + ((33+3 − 33 ) + 3/3) := 33+3 − (3 × (3 + 3)) := 33+3 + (((3 − 33)/3) − 3) := (4 + 4)/4 + 4 × 4 × 44 := 4 + (4 × 4 × 44 − 4/4) + 4 := (4 × ((4 × 44) + 4)) − 4 := 5 × 5 + ((55 + 5)/5 + 55) 5 := ((555 + 5 )/5) − 5 × 5 := (55 × (55 + 5 + 5) + 5)/5 := 6 + ((666 − ((6 + 6)/6)) + 6 × 6) := ((6 × 6/(6 + 6)) ) − 6 − 6 − 6 := ((66 × (66 − 6/6)) + 6)/6 := 7 + (777 − (7/7 + 77)) := 77/7 + (777 − 77) := 7 × (77 + 7) + ((7 + 7)/7)7 := (8 + 8)/8 + 8 × 88 := 8 + (8 × 88 − 8/8) := 8 × 88 + (88 + 8)/8 := 9 × 9 × 9 − ((99 + 99 + 9)/9) := 9 × 9 × 9 − (9 + 9) := 9 × 9 × 9 − ((99 + 9 + 9)/9) Ï 707 := (11 − 1 − 1)1+1+1 − 11 − 11 6 Ï 712 := 1 + (1111 − (((1 + 1) × (11 − 1))1+1 )) Ï 717 := ((1 + 1)11 ) − 111+1+1 := 2/2 + (222 + 222 ) := 2 × (((22 × 22+2 ) + 2) + 2) := 222 + (22/2 + 222 ) := 3 + (33/3 × ((3/3 + 3)3 )) := 3/3 + (33+3 − (3 × (3 + 3))) := 33+3 − (3 × 3 + 3) := 4 + 4 × 4 × 44 − 4/4 := 4 + 4 × 4 × 44 + 4 := 4/4 + ((4 × ((4 × 44) + 4)) − 4) 5 5 5 := 5 × 5 + ((5 + 5 + 5)/5 + 55) := 55 + (((5 + 5)/5) + 5 /5) := ((55 × (55 + 5 + 5) + 5) + 5)/5 := 6 + ((666 − 6/6) + 6 × 6) := 6 × 6 + ((66 − 6)/6 + 666) := ((6 × 6/(6 + 6))6 ) − 6 − 6 := 7 + (777 − 77) := 777 + ((77 + 7)/7 − 77) := 777 − (77/7 + 7 × 7) := 88/8 + (8 × 88 − 8) := 8 + 8 × 88 := 8 × 88 + (88 + 8 + 8)/8 := 9 × 9 × 9 − ((99 + 99)/9) := 9/9 + (9 × 9 × 9 − (9 + 9)) := 9 × 9 × 9 − (99 + 9)/9 57 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 718 := (11 − 1 − 1)1+1+1 − 11 Ï 723 := (1 + 1 + 1) × (((1 + 1) × 111+1 ) − 1) Ï 728 := (11 − 1 − 1)1+1+1 − 1 := 2 × (((22 − (2/2 + 2))2 ) − 2) := (2/2 + 2) × (222 − 2)/2 := 2 + (222 /2 + 222 ) := 33+3 − 33/3 := 33+3 − (3 + 3) := 33+3 − 3/3 := (4 × ((4 × 44) + 4)) − (4 + 4)/4 := 4 + ((4 × ((4 × 44) + 4)) − 4/4) := 4 + ((4 × ((4 × 44) + 4)) + 4) := 5 × 5 × (5 × 5 + 5) − ((5 + 5)/5)5 := 5 × (5 × 5 − 5) + (55 − 5 − 5)/5 := (55 + 5/5) × (55 + 5 + 5)/5 := (6 + 6) × (66 − 6) − (6 + 6)/6 := ((6 × 6/(6 + 6))6 ) − 6 := ((6 × 6/(6 + 6))6 ) − 6/6 := 7 + ((77/7 − 77) + 777) := 7 + (7 × (77 + 7) + ((7 + 7)/7)7 ) := 777 − 7 × 7 := 8 + ((8 × 88 − ((8 + 8)/8)) + 8) := 8 + (88/8 + 8 × 88) := 8 + (8 × 88 + 8 + 8) := 9 × 9 × 9 − 99/9 := 9 × 9 × 9 + (((9 + 9 + 9)/9) − 9) := 9 × 9 × 9 − 9/9 Ï 719 := 1 + ((11 − 1 − 1)1+1+1 − 11) Ï 724 := (1 + 1) × ((11 × (11 × (1 + 1 + 1))) − 1) Ï 729 := (11 − 1 − 1)1+1+1 := (2/2 + 2)2+2+2 := ((22 − 2) × (2 + 2 + 2)2 ) − 2/2 := 2 + (2 × ((22 − (2/2 + 2))2 )) := 33+3 + ((3 − 33)/3) := 3/3 + (33+3 − (3 + 3)) := (4 × ((4 × 44) + 4)) − 4/4 := 4 + (4 × ((4 × 44) + 4)) := (4 − 4/4)4+(4+4)/4 := (((55 + 5)(5+5)/5 ) − 5)/5 := (55 − 5)/5 + 5 × (5 × 5 − 5) := (5 − (5 + 5)/5)5/5+5 := (6 + 6) × (66 − 6) − 6/6 := (66 × 66 − 6 − 6)/6 := (6 × 6/(6 + 6))6 := 777 − (((7 + 7)/7 + 7 × 7) + 7) := (7 × (7 × (7 + 7) + 7)) − 77/7 := 7/7 + (777 − 7 × 7) := 8 + ((8 × 88 − 8/8) + 8) := 8 + (((88 + 8)/8) + 8 × 88) := (8/8 + 8)88/8−8 := 9 × 9 × 9 − 9/9 − 9 := 9 × 9 × 9 + ((9 − 99)/(9 + 9)) := 9 × 9 × 9 Ï 720 := (1 + 1) × ((1 + 1 + 1) × (111+1 − 1)) := (22 − 2) × (2 + 2 + 2)2 Ï 725 := ((1 + 1) × (11 × (11 × (1 + 1 + 1)))) − 1 := 33+3 Ï 730 := 1 + (11 − 1 − 1)1+1+1 := 222 + (222 − 2)/2 := 2/2 + ((2/2 + 2)2+2+2 ) := 33+3 − (3/3 + 3) := 3/3 + 33+3 := 4 × ((4 × 44) + 4) := 4 + ((4 × ((4 × 44) + 4)) + 4/4) := 4 + (44/4 × (((44 + 4) + 4)/4)) := (5/5 + 5) × (5 × 5 × 5 − 5) := 5 × (5 × (5 × 5 + 5) − 5) := 5 + (5 × (5 × (5 × 5 + 5) − 5)) := (6 + 6) × (66 − 6) := 3 3+3 −3×3 := (66 × 66 − 6)/6 := 6/6 + ((6 × 6/(6 + 6))6 ) := 777 − ((7/7 + 7 × 7) + 7) := 777 − (((7 + 7 + 7)/7) + 7 × 7) := ((7 + 7)/7) + (777 − 7 × 7) := 8 + (8 × 88 + 8) := 8 + ((88 + 8 + 8)/8 + 8 × 88) := 8 + (((((8 + 8)/8) + 8 × 88) + 8) + 8) := 9 × 9 × 9 − 9 := 9 × 9 × 9 + ((9 − 9 × 9)/(9 + 9)) := 9/9 + 9 × 9 × 9 Ï 721 := (111 + 111+1+1 )/(1 + 1) 2 2 Ï 726 := (1 + 1) × (11 × (11 × (1 + 1 + 1))) Ï 731 := 1 + (1 + (11 − 1 − 1)1+1+1 ) := ((((2 + 2 + 2) + 2) ) − 2)/2 := 22 × (22/2 + 22) := 2 + ((2/2 + 2)2+2+2 ) := 3 + (33+3 − 33/3) := 33+3 − 3 := 3 + (33+3 − 3/3) := 4/4 + (4 × ((4 × 44) + 4)) := 44/4 × (((44 + 4) + 4)/4) := 44/4 + (4 × ((4 × 44) + 4)) := 5/5 + (5 × (5 × (5 × 5 + 5) − 5)) := ((555 + 55 )/5) − 5 := 6/6 + (6 + 6) × (66 − 6) := 66 × (66/6) := 6 + ((66 × 66 − 6)/6) := 777 − (7 × 7 + 7) := (7 − 7/7) × (((7 + 7)/7)7 − 7) := 7 + ((7 × (7 × (7 + 7) + 7)) − (77/7)) := 8 + ((8 × 88 + 8/8) + 8) := 8 × 88 + (88 + 88)/8 := 8 + ((88/8 + 8 × 88) + 8) := 9/9 + (9 × 9 × 9 − 9) := 9 × 9 × 9 − (9 + 9 + 9)/9 := 9 × 9 × 9 + ((9 + 9)/9) := (((55 + 5) (5+5)/5 ) + 5)/5 Ï 722 := (1 + 1) × ((((1 + 1) × (11 − 1)) − 1)1+1 ) := 2 × ((22 − (2/2 + 2))2 ) Ï 727 := (11 − 1 − 1)1+1+1 − 1 − 1 Ï 732 := 1 + (1 + (1 + (11 − 1 − 1)1+1+1 )) := ((2/2 + 2)2+2+2 ) − 2 := (2/2 + 2) × (222 /2 + 2) := 3/3 + (33+3 − 3) := 3 + 33+3 := (4 + 4)/4 + (4 × ((4 × 44) + 4)) := 4 + (((4 × ((4 × 44) + 4)) − 4/4) + 4) := 44 + (4 × ((4 × 44) − 4)) (5+5)/5 := (5 + 5)/5 + (5 × (5 × (5 × 5 + 5) − 5)) := (((555 + 55 ) + 5)/5) − 5 := (66 × 66 + 6)/6 := 66 + 666 := 7/7 + (777 − (7 × 7 + 7)) := 777 − (7/7 + 7 × 7) := 77/7 + (777 − (7 × 7 + 7)) := 8 + ((((8 + 8)/8) + 8 × 88) + 8) := 8 + (((8 × 88 − 8/8) + 8) + 8) := 8 + ((((88 + 8)/8) + 8 × 88) + 8) := 9 × 9 × 9 + (((9 + 9)/9) − 9) := 9 × 9 × 9 − (9 + 9)/9 := 9 × 9 × 9 + ((9 + 9 + 9)/9) := 3 3+3 − ((3/3 + 3) + 3) := ((((55 + 5) ) + 5) + 5)/5 := (6 + 6)/6 + (6 + 6) × (66 − 6) 58 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 733 := 1 + (1 + (1 + (1 + (11 − 1 − 1)1+1+1 ))) Ï 738 := 1 + (11 × (1 + ((1 + 1) × (11 × (1 + 1 + 1))))) Ï 743 := 1 + (1 + (1 + (11 + (11 − 1 − 1)1+1+1 ))) := 2 + (((2/2 + 2)2+2+2 ) + 2) := 2 + (22+2 × ((2 × 22) + 2)) := 2 + ((22×(2+2) + 222 ) + 2/2) := 3 + (33+3 + 3/3) := 3 × 3 + 33+3 := 3 + (33+3 + 33/3) := 4 + ((4 − 4/4)4+(4+4)/4 ) := 44 + ((44 × 44 − (4 + 4))/4) := 4 + (((44 × 44 − 4)/4) + 44 ) := 55 + ((55 − 5 − 5)/5 + 55) := (((555 + 55 ) + 5) + 5)/5 := 5 + ((((555 + 55 ) + 5) + 5)/5) := 6 + ((66 × 66 + 6)/6) := 6 + (666 + 66) := 6 + ((66/6) × (66 + 6/6)) := (7 × (7 × (7 + 7) + 7)) − (7 + 7)/7 := 777 + (((77 − 7)/7) − 7 × 7) := 7 + ((7 × (7 × (7 + 7) + 7)) + 7/7) := 8 + (((88 + 8 + 8)/8 + 8 × 88) + 8) := (8/8 + 8) × ((((8 + 8)/8) − 8) + 88) := 888/8 + (8 × (88 − 8) − 8) := 9 × 9 × 9 + ((9 × 9 − 9)/(9 + 9)) := 9 + 9 × 9 × 9 := 9 + (((9 × 9 + 9)/(9 + 9)) + 9 × 9 × 9) Ï 734 := (1 + 1) × (1 + ((1 + 1 + 1) × (1 + 111+1 ))) 2 Ï 739 := 11 + ((11 − 1 − 1)1+1+1 − 1) Ï 744 := (1 + 11) × (1 + ((1 + 111+1 )/(1 + 1))) := 222 + (2(2/2+2) ) := 222 + (22×(2+2) − 2/2) := (2 × 222 ) − (222 + 2) := 3 + ((33+3 − 3/3) + 3) := 3 × 3 + (33+3 + 3/3) := 3 + ((33+3 + 3 × 3) + 3) := (4 + 4)/4 × (444/4 + 44 ) := 44 + ((44 × 44 − 4)/4) := 44 + (444 + 44 ) := 5 + ((5 − (5 + 5)/5)5/5+5 ) := 5 × 5 × 5 + ((55 − 55)/5) := 5 × 5 × 5 + ((55 − 5)/5 − 5) := 6 + (((6 × 6/(6 + 6))6 ) − 6/6) := 6 + (((66 × 66 + 6)/6) + 6) := 6 + ((666 + 66) + 6) := (7 × (7 × (7 + 7) + 7)) − 7/7 := 77/7 + (777 − 7 × 7) := 7 + ((7 × (7 × (7 + 7) + 7)) + ((7 + 7)/7)) := 8 + ((88 + 88)/8 + 8 × 88) := 8 + (((88/8 + 8 × 88) + 8) + 8) := 8 × (88 + 8) − 8 − 8 − 8 := 9 × 9 × 9 + ((9 × 9 + 9)/(9 + 9)) := 9 + (9 × 9 × 9 + 9/9) := 9 + ((9 × 9 × 9 − ((9 + 9 + 9)/9)) + 9) Ï 735 := (1 + 1 + 1) × (1 + ((1 + 1) × (1 + 111+1 ))) Ï 740 := 11 + (11 − 1 − 1)1+1+1 Ï 745 := (1 + (1 + (1 + ((1 + 1)1+1+11 ))))/11 := 2 + ((((2/2 + 2)2+2+2 ) + 2) + 2) := 222 + 22×(2+2) := 22+2 + ((2/2 + 2)2+2+2 ) := 3 + (33+3 + 3) := 33+3 + 33/3 := 33 + (33+3 − 33/3) := (4 − 4/4) × (44 − 44/4) := 4 + (4 × (((4 × 44) + 4) + 4)) := 4 + (((44 × 44 + 4)/4) + 44 ) := 55 + (55 /5 + 55) := 5 × 5 × (5 × 5 + 5) − 5 − 5 := 5 × 5 × (5 × 5 + 5) − 5 := 66/6 + ((6 × 6/(6 + 6))6 ) := 6 + ((((66 × 66 + 6)/6) + 6) + 6) := 7 + ((7 × (7 × (7 + 7) + 7)) − ((7 + 7)/7)) := 777 − ((77/7 + 7 + 7) + 7) := 8 × 88 + ((8 × 8 + 8)/((8 + 8)/8)) := 8 + (((8/8 + 8)88/8−8 ) + 8) := 9 × 9 × 9 + (99/9) := 9 + ((9 × 9 × 9 − ((9 + 9)/9)) + 9) := 6 + ((6 × 6/(6 + 6))6 ) := 7 × (7 × (7 + 7) + 7) := 8 + ((((8 × 88 − 8/8) + 8) + 8) + 8) := 9 + (9 × 9 × 9 − ((9 + 9 + 9)/9)) Ï 736 := 111 + (1 + (1 + 1) × (1 + 11))1+1 := 22+2 × ((2 × 22) + 2) := 3 + ((33+3 + 3/3) + 3) := 4 × (((4 × 44) + 4) + 4) Ï 741 := 1 + (11 + (11 − 1 − 1)1+1+1 ) := 2/2 + (2 := 3 + (3 2×(2+2) 3+3 2 + 22 ) := (2 × 222 ) − 222 := 3 + ((33+3 + 33/3) + 3) + 3 × 3) 4 := 4 + ((44 × 44 + 4)/4) 5 := (555 + 55 )/5 Ï 746 := (1 + 1) × (((11 + 11)1+1 ) − 111) := 44 + 4 × 4 × 44 − (4 + 4)/4 := 5 + (((555 + 55 )/5) + 5) := 5 + ((555 + 5 )/5) 6 := 6 + (((6 × 6/(6 + 6))6 ) + 6/6) := 6 + (((6 × 6/(6 + 6)) ) + 6) := 6 + (((6 × 6/(6 + 6))6 ) + (66/6)) := 7/7 + (7 × (7 × (7 + 7) + 7)) := 7 + ((7 × (7 × (7 + 7) + 7)) − 7/7) := 77/7 + (7 × (7 × (7 + 7) + 7)) := 8 + ((8 × 88 + 8 + 8) + 8) := 8 × 88 + 888/(8 + 8 + 8) := 8 × (88 + 8) − (88 + 88)/8 := 9 + (9 × 9 × 9 − ((9 + 9)/9)) := 9 × 9 × 9 + (99 + 9)/9 := 9 + ((9 × 9 × 9 − 9/9) + 9) Ï 737 := 11 × (1 + ((1 + 1) × (11 × (1 + 1 + 1)))) := 2/2 + (2 2+2 × ((2 × 22) + 2)) Ï 742 := 1 + (1 + (11 + (11 − 1 − 1)1+1+1 )) := 2 + (2 2×(2+2) 2 + 22 ) Ï 747 := ((1 + 1) × (11 × (1 + (11 × (1 + 1 + 1))))) − 1 := 2/2 + ((2 × 222 ) − 222) := 3 × 3 + (33+3 − 3/3) := 3 + ((33+3 + 3/3) + 3 × 3) := 3 × ((3 + 3)3 + 33) := 4/4 + (4 × (((4 × 44) + 4) + 4)) := 44 + (((44 × 44 + 4) + 4)/4) := 44 + 4 × 4 × 44 − 4/4 := ((555 + 5 ) + 5)/5 := 5 + (((555 + 5 ) + 5)/5) := ((555 + 55) + 55 )/5 := (66/6) × (66 + 6/6) := 6 + ((((6 × 6/(6 + 6))6 ) + 6/6) + 6) := 6 + ((((6 × 6/(6 + 6))6 ) + 6) + 6) := ((7 + 7)/7) + (7 × (7 × (7 + 7) + 7)) := 7 + (7 × (7 × (7 + 7) + 7)) := (77 + 7)/7 + (7 × (7 × (7 + 7) + 7)) := 8 + (((88 + 88)/8 + 8 × 88) + 8) := (8/8 + 8) × ((88/8 + 8 × 8) + 8) := 9 × 9 × 9 + ((99 + 9 + 9)/9) := 9 + (9 × 9 × 9 + 9) 5 5 := 8 + ((8/8 + 8) 88/8−8 ) := 9 + (9 × 9 × 9 − 9/9) 59 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 748 := (1 + 1) × (11 × (1 + (11 × (1 + 1 + 1)))) := 22 × ((2 × 2 2+2 Ï 753 := (((1 + 11)1+1+1 )/(1 + 1)) − 111 := 2 + (((2/2 + 2) ) + 2) 2+2+2 ) + 22) Ï 758 := (11 × ((1 + 1 + 1) × (1 + (11 + 11)))) − 1 := 2 + (2 × ((22 − 2)2 − 22)) := 3/3 + (33+3 + (3 × (3 + 3))) := 33 + (33+3 − 3) := 3 + ((33+3 − 3/3) + 33 ) := 44 + 4 × 4 × 44 := 4/4 + (4 × (444 − 44 )) := (4 + 4)/4 + ((4 − 4/4) × (44 − 4)) := 5 × 5 × 5 + (55 − 5 − 5)/5 := 5 + ((55 − 5 − 5)/5 + 5 × 5 × 5) := 5 + (((55 − 5 − 5)/5 + 5 × 5 × 5) + 5) := (66/6) × (((6 + 6)/6) + 66) := 6 + (((((6 × 6/(6 + 6))6 ) + 6) + 6) + 6) := (6 + 6)/6 + (6 × ((66 − 6) + 66)) := 7 + (((7 × (7 × (7 + 7) + 7)) − 7/7) + 7) := 7 + ((7 × (7 × (7 + 7) + 7)) + (77/7)) := 777 − ((77 + 7)/7 + 7) := 8 × 88 + (88/((8 + 8)/8)) := 8/8 + (8 × (88 + 8) − (8 + 8)) := (8 − 88)/8 + 8 × (88 + 8) := 9 + ((9 × 9 × 9 + 9/9) + 9) := 9 + (((9 × 9 × 9 − ((9 + 9 + 9)/9)) + 9) + 9) := 9 + ((9 × 9 × 9 + (99/9)) + 9) Ï 749 := 1 + ((1 + 1) × (11 × (1 + (11 × (1 + 1 + 1))))) 2+2+2 Ï 754 := 1 + ((((1 + 11)1+1+1 )/(1 + 1)) − 111) Ï 759 := 11 × ((1 + 1 + 1) × (1 + (11 + 11))) := (2 × ((22 − 2)2 − 22)) − 2 := (2/2 + 2) × ((222 + 22)/2) := 3 × 3 + (33+3 + 33/3) := 33 + ((33+3 − 3) + 3/3) := 3 + (33+3 + 33 ) := 44 + 4 × 4 × 44 + 4/4 := (4 + 4)/4 + (4 × (444 − 44 )) := (4 − 4/4) × ((4/4 − 4) + 44 ) := 5 × 5 × 5 + (55 − 5)/5 := 5 + ((55 − 5)/5 + 5 × 5 × 5) := 5 + (((55 − 5)/5 + 5 × 5 × 5) + 5) := 6 + (((66/6) × (66 + 6/6)) + 6) := 6 + ((66/6) × (((6 + 6)/6) + 66)) := 6 × 6 + (((6 × 6/(6 + 6))6 ) − 6) := 22 + (((2/2 + 2) ) − 2) := 7 + ((7 × (7 × (7 + 7) + 7)) + 7) := 777 − ((((7 + 7)/7 + 7) + 7) + 7) := 777 − (77/7 + 7) := 8 × (88 + 8) − (88/8 + 8) := (8 + 8)/8 + (8 × (88 + 8) − (8 + 8)) := 8 × (88 + 8) − (8/8 + 8) := 9 + (9 × 9 × 9 + (99/9)) := 9 + (((9 × 9 × 9 − ((9 + 9)/9)) + 9) + 9) := 9 × (9 × 9 − 9) + 999/9 Ï 750 := (1 + 1) × (1 + (11 × (1 + (11 × (1 + 1 + 1))))) 2+2 Ï 755 := 111+1+1 − (((1 + 1) × (1 + 11))1+1 ) Ï 760 := 1 + (11 × ((1 + 1 + 1) × (1 + (11 + 11)))) := (2 × ((22 − 2)2 − 22)) − 2/2 := 2 × (((22 − 2)2 − 22) + 2) := 3 + (33+3 + (3 × (3 + 3))) := 33 + (33+3 − 3/3) := 3 + ((33+3 + 3/3) + 33 ) := 44 + 4 × 4 × 44 + (4 + 4)/4 := ((4 − 4/4) × (44 − 4)) − 4/4 := 4 + ((4 − 4/4) × (44 − 4)) := 5 × 5 × (5 × 5 + 5) := 5 + 5 × 5 × (5 × 5 + 5) := 5 + (5 × 5 × (5 × 5 + 5) + 5) := 66 × (6 + 6) − (6 × 6 + 6) := 66 × (6 + 6) − (6 × 6 + 6/6) := 6 × 6 + ((66 × 66 − 6 − 6)/6) := (7/7 + 7 + 7) × (7/7 + 7 × 7) := 2 + (22 × ((2 × 2 ) + 2)) := 777 − (7/7 + 7 + 7 + 7) := 777 + (((7 − 77)/7) − 7) := (8 − 88)/8 + (8 × (88 + 8) − 8) := 8 × (88 + 8) − (88 + 8 + 8)/8 := 8 × (88 + 8) − 8 := 9 + (((99 + 9)/9) + 9 × 9 × 9) := 9 + (((9 × 9 × 9 − 9/9) + 9) + 9) := 9 + (((99 + 99)/9) + 9 × 9 × 9) Ï 751 := 11 + (11 + (11 − 1 − 1)1+1+1 ) 2+2+2 Ï 756 := (1 + 1 + 1) × ((1 + 11) × (11 + (11 − 1))) Ï 761 := 1 + (1 + (11 × ((1 + 1 + 1) × (1 + (11 + 11))))) := 2 × ((22 − 2)2 − 22) := 2 + ((2/2 + 2) × ((222 + 22)/2)) := 33 + 33+3 := 33 + (33+3 − 3/3) := (4 × (4 − 4)) − (4/4 + 4 ) := (4 − 4/4) × (44 − 4) := ((4 − 4/4) × (44 − 4/4)) − 4 := 5/5 + 5 × 5 × (5 × 5 + 5) := 5 + (5 × 5 × (5 × 5 + 5) + 5/5) := 5 × 5 + ((555 + 55 )/5) := 22 + ((2/2 + 2) := 33 + (3 3+3 ) − 33/3) 4 4 := 6 × 6 + ((66/6) × (66 − 6/6)) := 6 × ((66 − 6) + 66) := 6 × 6 + ((66 × 66 − 6)/6) := 777 − ((77 + 7)/7 + 7 + 7) := 777 − (7 + 7 + 7) := 777 − (((7 + 7)/7 + 7) + 7) := 888/8 + 8 × (88 − 8) := 8 × (88 + 8) − (88 + 8)/8 := 8/8 + (8 × (88 + 8) − 8) := 9 × 9 × 9 + ((99 + 99)/9) := 9 + ((9 × 9 × 9 + 9) + 9) := ((99/9) × (9 × 9 − (99/9))) − 9 Ï 752 := 1 + (11 + (11 + (11 − 1 − 1)1+1+1 )) 2 Ï 757 := 1 + ((1 + 1 + 1) × ((1 + 11) × (11 + (11 − 1)))) Ï 762 := (1 + 1 + 1) × (1 + (11 × (1 + (11 + 11)))) := 2 × ((22 − 2) − (22 + 2)) := 2/2 + (2 × ((22 − 2) − 22)) := (2/2 + 2) × (22×(2+2) − 2) := 33 + (33+3 − (3/3 + 3)) := 33 + (33+3 + 3/3) := 33 + 33+3 := 4 × (444 − 44 ) := 4/4 + ((4 − 4/4) × (44 − 4)) := (4 − 4/4) × (44 − (4 + 4)/4) := 5 × 5 × 5 + (55 + 5 + 5)/5 := 5 + (5 × 5 × (5 × 5 + 5) + ((5 + 5)/5)) := 5 × 5 + (((555 + 55 ) + 5)/5) := 6 + ((((6 × 6/(6 + 6))6 ) + (66/6)) + 6) := 6/6 + (6 × ((66 − 6) + 66)) := 6 + (6 × ((66 − 6) + 66)) := 777 − (77/7 + 7 + 7) := 7/7 + (777 − (7 + 7 + 7)) := 777 − (7/7 + 7 + 7) := 8 × (88 + 8) − 8 − 8 := 8 × (88 + 8) − 88/8 := (8 + 8)/8 + (8 × (88 + 8) − 8) := 9 × 9 × 9 + ((99 + 99 + 9)/9) := 9 + (((9 × 9 × 9 + 9/9) + 9) + 9) := 9 × 9 × 9 + (99/((9 + 9 + 9)/9)) 2 60 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 763 := (111 − 1 − 1) × (1 + ((1 + 1) × (1 + 1 + 1))) Ï 768 := (1 + 1 + 1) × (1 + 1)(1+1) 1+1+1 Ï 773 := ((1 + ((1 + 1 + 1)1+1+1 ))1+1 ) − 11 := 2/2 + ((2/2 + 2) × (22×(2+2) − 2)) := 2 × (22+2 × (22 + 2)) := (2 × 22) + ((2/2 + 2)2+2+2 ) := 3/3 + (33+3 + 33) := 3 + ((33+3 + 33) + 3) := 33 + (33+3 + 33/3) := 4 × 44 − ((4/4 + 44 ) + 4) := 4 × (4 × (44 + 4)) := 4 + ((4 × (4 × (44 + 4))) + 4/4) := 555 + ((55 − 5)/(5 + 5 + 5)) := (5 × 5 − 5/5) × ((5 + 5)/5)5 := 5 + ((5 × 5 − 5/5) × ((5 + 5)/5)5 ) := 6 × 6 + ((66 × 66 + 6)/6) := (6 + 6) × ((6 + 6)/6)6 := 6 + (((6 + 6) × ((6 + 6)/6)6 ) − 6/6) := 777 − (7 + 7) := (7 − 7/7) × ((7 + 7)/7)7 := 7 + (777 − (77/7)) := 88/8 + (8 × (88 + 8) − (8 + 8)) := 8 × (88 + 8) := 8 + ((8 × (88 + 8) − (88/8)) + 8) := (9 − ((9 + 9)/9)) × (9/9 + 99 + 9) := 9 + (9 × (9 × 9 − 9) + 999/9) := 99 + ((((9 + 9)/9)9 ) + 9 × (9 + 9)) Ï 764 := 1 + ((111 − 1 − 1) × (1 + ((1 + 1) × (1 + 1 + 1)))) Ï 769 := 1 + (1 + 1 + 1) × (1 + 1)(1+1) 1+1+1 Ï 774 := 1 + (((1 + ((1 + 1 + 1)1+1+1 ))1+1 ) − 11) := 2 × ((2 2+2 × (22 + 2)) − 2) := 2/2 + (2 × (22+2 × (22 + 2))) := (2/2 + 2) × (22×(2+2) + 2) := 3 + ((3 3+3 − 3/3) + 33) := 3 + (((33+3 + 3/3) + 33) + 3) := 3 + ((33+3 + 33) + 3 × 3) := 4/4 + (4 × (4 × (44 + 4))) := (4 − 4/4) × ((4 + 4)/4 + 44 ) := (5 × (5 − 55)) + ((5 − 5/5)5 − 5) := (5 × (5 − 55)) + (5 − 5/5)5 := 6/6 + ((6 + 6) × ((6 + 6)/6)6 ) := 6 + ((6 + 6) × ((6 + 6)/6)6 ) := 7/7 + (777 − (7 + 7)) := 777 − (7/7 + 7) := 777 − (7 + 7 + 7)/7 := 8 × (88 + 8) − (8/((8 + 8)/8)) := 8/8 + 8 × (88 + 8) := 8 + (8 × (88 + 8) − ((8 + 8)/8)) := 9 + ((((9 × 9 × 9 − 9/9) + 9) + 9) + 9) := 9 × 9 × 9 + ((9 × 9 × 9 − 9)/(9 + 9)) := 9 × 99 − (99 + 9 + 9) 4 4 := 4 × 4 − (4 + 4) 5 := 5 × (5 × 5 + 5) + ((5 − 55)/5) 6 := 6 × 6 + (((6 × 6/(6 + 6)) ) − 6/6) Ï 765 := (1 + 1 + 1) × (111 + ((1 + 11)1+1 )) := (2/2 + 2) × (2 := 3 + (3 3+3 2×(2+2) − 2/2) Ï 770 := 11 × ((11 − 1 − 1)1+1 − 11) := 2 + (2 × (2 + 33) 2+2 × (22 + 2))) Ï 775 := 1111 − ((1 + 1 + 1) × (1 + 111)) := 2 + (((22+2 + 2/2)2 ) + 222 ) := 3 + ((33+3 + 33/3) + 33 ) := 3333/3 − (333 + 3) := (4 + 4)/4 + (4 × (4 × (44 + 4))) := 4 + ((4 − 4/4) × (4/4 + 44 )) := 55 × ((5 − 5/5 + 5) + 5) := 5 × (5 × (5 × 5 + 5) + 5) := 6 × 6 + ((6 × 6/(6 + 6)) ) := (6/6 + 6) × ((666 − 6)/6) := 66 × (6 + 6) − ((66/6) + 6) := 777 − (77 + 7)/7 := 777 − 7 := 777 − (7 + 7)/7 := 8 + (8 × (88 + 8) − (88/8)) := (8 + 8)/8 + 8 × (88 + 8) := 8 + (8 × (88 + 8) − 8/8) := 9 + (((9 × 9 × 9 + 9) + 9) + 9) := 99/9 × (9 × 9 − 99/9) := ((9 − 9/9) × (99 − 9/9)) − 9 4 := (4 − 4/4) × (4 − 4/4) := 5 + ((5 × 5 × (5 × 5 + 5) + 5) + 5) 6 Ï 766 := (111 × (1 + ((1 + 1) × (1 + 1 + 1)))) − 11 := (2 × (2 2+2 × (22 + 2))) − 2 Ï 771 := 1 + (11 × ((11 − 1 − 1)1+1 − 11)) 2 2 := 22 + ((((22 + 2) ) − 2)/2) := 3 + ((33+3 + 3/3) + 33) := 3 × 3 + (3 := 4 × 44 − ((4 + 4)/4 + 44 ) 3+3 := 5 + (((555 + 5 )/5) + 5 × 5) 6 := 6 × 6 + (((6 × 6/(6 + 6)) ) + 6/6) := 2 × (2 × (((22+2 − 2)2 ) − 2)) := 3 + ((33+3 + 33/3) + 33) + 33) 4 5 Ï 776 := (111 × (1 + ((1 + 1) × (1 + 1 + 1)))) − 1 := (4 − 4/4) × (4/4 + 4 ) := 4 + ((4 × (4 × (44 + 4))) + 4) := 5/5 + (55 × ((5 − 5/5 + 5) + 5)) := 5/5 + (5 × (5 × (5 × 5 + 5) + 5)) 6 := 6 + (((6 × 6/(6 + 6)) ) + 6 × 6) := 666 + (666 − 6)/6 := 777 − 77/7 := 7/7 + (777 − 7) := 777 − 7/7 := 8 × (88 + 8) − (8 + 8)/8 := 88/8 + (8 × (88 + 8) − 8) := 8 + 8 × (88 + 8) := 9 + ((((9 × 9 × 9 + 9/9) + 9) + 9) + 9) := 9 × 99 − (999/9 + 9) := (9 − 9/9) × (99 − ((9 + 9)/9)) Ï 767 := (1 + 1 + 1) × (1 + 1)(1+1) := (2 × 2 × 222) − (22/2) 3 3+3 1+1+1 −1 2 Ï 772 := 1 + (1 + (11 × ((11 − 1 − 1)1+1 − 11))) := 2 × ((2 2+2 × (22 + 2)) + 2) Ï 777 := 111 × (1 + ((1 + 1) × (1 + 1 + 1))) := 222/2 × ((2/2 + 2 + 2) + 2) := 3 × 3 + ((33+3 + 3/3) + 33) := (33 × (33 + 3)) − 33 := 4 + (4 × (4 × (44 + 4))) := (4 − 4/4) × ((44 − 4/4) + 4) := (((5 + 5)/5 + 5) × 555/5) − 5 := ((5 + 5)/5 + 5) × 555/5 := ((6 + 6) × ((6 + 6)/6) ) − 6/6 := 666 + ((666 + 6)/6 − 6) := 666 + 666/6 := 777 + (7 − 77)/7 := ((7 + 7)/7) + (777 − 7) := 777 := 8 × (88 + 8) − 8/8 := 8 × (88 + 8) + (8/((8 + 8)/8)) := 8 + (8 × (88 + 8) + 8/8) := 9 + (((9 × 9 × 9 + (99/9)) + 9) + 9) := 9 × 99 + (((9 − 999)/9) − 9) := (9 − ((9 + 9)/9)) × 999/9 := 3 + (3 + 33/3) := 4 × 44 − (4/4 + 44 ) 5 := 5 + ((((555 + 5 ) + 5)/5) + 5 × 5) 6 61 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 778 := 1 + (111 × (1 + ((1 + 1) × (1 + 1 + 1)))) 2 Ï 783 := ((1 + ((1 + 1 + 1)1+1+1 ))1+1 ) − 1 2 Ï 788 := 11 + (111 × (1 + ((1 + 1) × (1 + 1 + 1)))) := ((22 + 2 + 2 + 2) ) − 2/2 := 2 + (((22 + 2 + 2 + 2)2 ) + 2) := 3 × (3 × (3 × 33 + 3 + 3)) := (33 × (33 − 3)) − (3/3 + 3) := 4 + ((4 − 4/4) × ((4 + 4)/4 + 4 )) := (4 − 4/4) × ((4/4 + 44 ) + 4) := 4 + (4 × ((4 × (44 + 4)) + 4)) := ((55 − 5)/(5 − 5/5)) − (5 + 5)/5 := (((5 + 5)/5 + 55 ) + 5)/(5 − 5/5) := 5 + ((((5 + 5)/5 + 55 ) + 5)/(5 − 5/5)) := 666 + (666 + 6)/6 := 6 + (666/6 + 666) := (6 + 6)/6 + (66 × (6 + 6) − 6) := 7/7 + 777 := 7 + (777 − 7/7) := 77/7 + 777 := 8 + (8 × (88 + 8) + ((8 + 8)/8)) := (8/8 + 8) × (88 − 8/8) := 8 + (((88 + 8)/8) + 8 × (88 + 8)) := 9 × 9 × 9 + ((9 × 99 − 9)/(9 + 9)) := 9 × 99 − (99 + 9) := 9 + (9 × 99 − ((999 + 9)/9)) := (2 × (22 − 2) ) − 22 := 3333/3 − 333 4 Ï 779 := 1 + (1 + (111 × (1 + ((1 + 1) × (1 + 1 + 1))))) 2 Ï 784 := (1 + ((1 + 1 + 1)1+1+1 ))1+1 Ï 789 := (1 + 1 + 1) × (((1 + 1) × (11 × (1 + 11))) − 1) := 2/2 + ((2 × (22 − 2) ) − 22) := (22 + 2 + 2 + 2)2 := (2 × (22 − 2)2 ) − 22/2 := (33 × 33 ) − ((333 + 3)/3) := (33 + 3/3)3−3/3 := (33 × (33 − 3)) − 3 := 44/4 + (4 × (4 × (44 + 4))) := 4 × ((4 × (44 + 4)) + 4) := 4 + ((4 × ((4 × (44 + 4)) + 4)) + 4/4) := ((5 − 5)/(5 − 5/5)) − 5/5 := (55/5 + 55 )/(5 − 5/5) := 5 + ((55/5 + 55 )/(5 − 5/5)) := 66 × (6 + 6) − (6/6 + 6 + 6) := (6/6 + 6) × (666 + 6)/6 := 66 + (((6 × 6/(6 + 6))6 ) − 6) := ((7 + 7)/7) + 777 5 := 7 + 777 := 777 + (77 + 7)/7 := 88/8 + 8 × (88 + 8) := 8 + (8 × (88 + 8) + 8) := 888 − (88/8 + 88) := 9 × 99 − ((999 + 9)/9) := (9 − 9/9) × (99 − 9/9) := 9 + (9 × 99 − 999/9) Ï 780 := (11 − 1) × (111 − (11 × (1 + 1 + 1))) 2 Ï 785 := 1 + ((1 + ((1 + 1 + 1)1+1+1 ))1+1 ) Ï 790 := (1 + 1) × ((11 × ((1 + 1 + 1) × (1 + 11))) − 1) := 2 + ((2 × (22 − 2) ) − 22) := 2/2 + ((22 + 2 + 2 + 2) ) := (22 × (2 + 2 + 2)2 ) − 2 := (33 + 3) × (33 − 3/3) := 3/3 + ((33 + 3/3)3−3/3 ) := 3/3 + ((33 × (33 − 3)) − 3) := (4 − 4/4) × (44 + 4) := 4/4 + (4 × ((4 × (44 + 4)) + 4)) := 4 + ((4 × ((4 × (44 + 4)) + 4)) + (4 + 4)/4) 5 2 := (5 − 5)/(5 − 5/5) := 5 + ((5 − 5)/(5 − 5/5)) := 5 + (((55 − 5)/(5 − 5/5)) + 5) 5 := (6 + 6) × (66 − 6/6) := 66 × (6 + 6) − 6/6 − 6 := 66 × (6 + 6) − (6 + 6)/6 := 777 + (7 + 7 + 7)/7 := 7 + (777 + 7/7) := 7 + ((777 − 7/7) + 7) := ((88 + 8)/8) + 8 × (88 + 8) := 8 + ((8 × (88 + 8) + 8/8) + 8) := 88 + (8 × 88 − ((8 + 8)/8)) := 9 × 99 − 999/9 := 9 + ((9 − 9/9) × (99 − ((9 + 9)/9))) := 9 × 99 − ((9 + 9)/9 + 99) Ï 781 := 11 × ((((1 + 11)1+1 )/(1 + 1)) − 1) Ï 786 := 1 + (1 + ((1 + ((1 + 1 + 1)1+1+1 ))1+1 )) Ï 791 := (11 × (((1 + 11)1+1 )/(1 + 1))) − 1 := ((22 + 2 + 2 + 2)2 ) − 2/2 − 2 := 2 + ((22 + 2 + 2 + 2)2 ) := (22 × (2 + 2 + 2)2 ) − 2/2 := 33/3 × (((3 + 3)3 − 3)/3) := (33 × (33 − 3)) − (3 + 3) := (33 × (33 − 3)) − 3/3 := 4/4 + ((4 − 4/4) × (44 + 4)) := (4 + 4)/4 + (4 × ((4 × (44 + 4)) + 4)) := 44/4 + ((4 − 4/4) × (44 + 4)) := (55 − 5/5)/(5 − 5/5) := 5 + ((55 − 5/5)/(5 − 5/5)) := 55 + ((555 + 55 )/5) := 66 × (6 + 6) − 66/6 := 66 × (6 + 6) − 6 := 66 × (6 + 6) − 6/6 := 77/7 + (777 − 7) := 7 + (((7 + 7)/7) + 777) := 7 + (777 + 7) := 88 + (8 × 88 − (88/8)) := 8 + ((8 × (88 + 8) + ((8 + 8)/8)) + 8) := 88 + (8 × 88 − 8/8) := 9 × 99 + ((9 − 999)/9) := 9 + ((9 − ((9 + 9)/9)) × 999/9) := 9 × 99 − (9/9 + 99) Ï 782 := 1 + (11 × ((((1 + 11)1+1 )/(1 + 1)) − 1)) Ï 787 := 111 + (((1 + 1) × (1 + (1 + 11)))1+1 ) Ï 792 := 11 × (((1 + 11)1+1 )/(1 + 1)) := ((22 + 2 + 2 + 2)2 ) − 2 := 2 + (((22 + 2 + 2 + 2)2 ) + 2/2) := 22 × (2 + 2 + 2)2 := 33 + ((33+3 − 3/3) + 33 ) := 3 + ((33 + 3/3)3−3/3 ) := 33 × (33 − 3) := (4 + 4)/4 + ((4 − 4/4) × (44 + 4)) := 4 + ((4 − 4/4) × ((4/4 + 44 ) + 4)) := 44 × ((4 + 4)/4 + 4 × 4) := 5 + (((5 + 5)/5 + 5) × 555/5) := 5 + ((((5 + 5)/5 + 5) × 555/5) + 5) := 55 + (((555 + 55 ) + 5)/5) := ((6 − 66)/6) + 66 × (6 + 6) := 6/6 + (66 × (6 + 6) − 6) := 66 × (6 + 6) := 7 + (777 − ((7 + 7)/7)) := 777 + (77 − 7)/7 := 7 + ((777 + 7/7) + 7) := 8 + ((8 × (88 + 8) − ((8 + 8)/8)) + 8) := 8 + (8 × (88 + 8) + (88/8)) := 88 + 8 × 88 := 9 × 99 − (9/9 + 99 + 9) := 9999/9 − (9 + 9) × (9 + 9) := 99 × (9 − 9/9) 62 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 793 := 1 + (11 × (((1 + 11)1+1 )/(1 + 1))) Ï 798 := (1 + 1) × ((((1 + 1) × (11 − 1))1+1 ) − 1) Ï 803 := 11 × (1 + (((1 + 11)1+1 )/(1 + 1))) := 2/2 + (22 × (2 + 2 + 2)2 ) := (2 × (22 − 2)2 ) − 2 := 2 + ((2 × (22 − 2)2 ) + 2/2) := 3/3 + (33 × (33 − 3)) := 3 + ((33 × (33 − 3)) + 3) := 33/3 + (33 × (33 − 3)) := 4/4 + (44 × ((4 + 4)/4 + 4 × 4)) := (4 − 4/4) × ((44 − 4)/4 + 44 ) := 4 + (((4 × 4 + 4) × (44 − 4)) − 4/4) := 555 + (((5 − (5 + 5)/5)5 ) − 5) := 555 + ((5 − (5 + 5)/5)5 ) := 5 + (((5 − (5 + 5)/5)5 ) + 555) := 6/6 + 66 × (6 + 6) := 6 + 66 × (6 + 6) := 66/6 + 66 × (6 + 6) := 7 + ((((7 + 7)/7) + 777) + 7) := 7 + (777 + 7 + 7) := 7 + (((77 + 7)/7 + 777) + 7) := 8/8 + (8 × 88 + 88) := 888 − ((8 + 8)/8 + 88) := 88 + (88/8 + 8 × 88) := 9/9 + (99 × (9 − 9/9)) := 9 × (9 × 9 + 9) − (99 + 9)/9 := (9 + 9)/9 + (9 × (9 × 9 + 9) − 9) Ï 794 := 1 + (1 + (11 × (((1 + 11)1+1 )/(1 + 1)))) Ï 799 := ((1 + 1) × (((1 + 1) × (11 − 1))1+1 )) − 1 Ï 804 := 1 + (11 × (1 + (((1 + 11)1+1 )/(1 + 1)))) := 2 + (22 × (2 + 2 + 2)2 ) := (2 × (22 − 2)2 ) − 2/2 := 2 × ((22 − 2)2 + 2) := 3 + ((33 × (33 − 3)) − 3/3) := (33 × (33 + 3)) − 33/3 := (33 × (33 + 3)) − (3 + 3) := 444 + (((4 + 4) × 44) − (4 + 4)/4) := ((4 × 4 + 4) × (44 − 4)) − 4/4 := 4 + ((4 × 4 + 4) × (44 − 4)) := (5 × (5 × ((5 + 5)/5) )) − (5/5 + 5) := (5 × (5 × ((5 + 5)/5) )) − 5/5 := 5 + ((5 × (5 × ((5 + 5)/5)5 )) − 5/5) := (6 + 6)/6 + 66 × (6 + 6) := 6 + (66 × (6 + 6) + 6/6) := 6 + (66 × (6 + 6) + 6) := 7 + (((77 − 7)/7) + 777) := 7 + (((777 + 7/7) + 7) + 7) := 7 + ((((777 − 7/7) + 7) + 7) + 7) := 88 + ((8 + 8)/8 + 8 × 88) := 888 − (8/8 + 88) := 88 + (((88 + 8)/8) + 8 × 88) := (9 + 9)/9 + (99 × (9 − 9/9)) := 9 × (9 × 9 + 9) − 99/9 := 9 × 99 + (((99 + 9)/9) − 99) 5 Ï 795 := 11 + ((1 + ((1 + 1 + 1)1+1+1 ))1+1 ) 5 Ï 800 := (1 + 1) × (((1 + 1) × (11 − 1))1+1 ) Ï 805 := ((1 + 1)11 ) − (11 × (1 + (1 + 111))) := (2 × ((22 − 2)2 − 2)) − 2/2 := 2 × (22 − 2)2 := 2/2 + (2 × ((22 − 2)2 + 2)) := 3 + (33 × (33 − 3)) := 33+3 + (((3 + 3)3 − 3)/3) := 3 + ((((3 + 3)3 + 3)/3) + 33+3 ) := 444 + (((4 + 4) × 44) − 4/4) := (4 × 4 + 4) × (44 − 4) := 4 + ((4/4 + 4)4 + (4 × 44)) := (55 + 55 )/(5 − 5/5) := 5 × (5 × ((5 + 5)/5)5 ) := 5 + (5 × (5 × ((5 + 5)/5)5 )) := 66 + ((6 × 6/(6 + 6))6 ) := 6 + (66 × (6 + 6) + ((6 + 6)/6)) := 6 + ((66 × (6 + 6) + 6/6) + 6) := 7 + (77/7 + 777) := 7 + (((((7 + 7)/7) + 777) + 7) + 7) := 7 + (777 + 7 + 7 + 7) := 8 + ((8 × (88 + 8) + (88/8)) + 8) := 888 − 88 := 8 × 88 + (8888/88) := 9 × 99 + (((9 + 9 + 9)/9) − 99) := (9 − 9/9) × (9/9 + 99) := 9 × (9 × 9 + 9) + ((9 − 99)/(9 + 9)) Ï 796 := (1 + 1) × ((((1 + 1) × (11 − 1))1+1 ) − (1 + 1)) Ï 801 := 1 + ((1 + 1) × (((1 + 1) × (11 − 1))1+1 )) Ï 806 := 1 + (((1 + 1)11 ) − (11 × (1 + (1 + 111)))) := 2 × ((22 − 2)2 − 2) := 2/2 + (2 × (22 − 2)2 ) := 2 + (2 × ((22 − 2)2 + 2)) := 3 + ((33 × (33 − 3)) + 3/3) := 3 × ((3 × (3 × (33 + 3))) − 3) := (33 × (33 + 3)) − (3/3 + 3) := 444 + ((4 + 4) × 44) := (4 × 44) + (4/4 + 4)4 := ((44 − 4)/4 × (4 − 4/4)4 ) − 4 := 5 + (((555 + 55 )/5) + 55) := 5/5 + (5 × (5 × ((5 + 5)/5)5 )) := 5 + ((5 × (5 × ((5 + 5)/5)5 )) + 5/5) := 6 + (66 × (6 + 6) − ((6 + 6)/6)) := 6 + (((6 × 6/(6 + 6))6 ) + 66) := 6 + ((66 × (6 + 6) + ((6 + 6)/6)) + 6) := 7 + ((77 + 7)/7 + 777) := 7 + ((((77 − 7)/7) + 777) + 7) := 7 + ((((777 + 7/7) + 7) + 7) + 7) := 88 + ((8/((8 + 8)/8)) + 8 × 88) := 8/8 + (888 − 88) := 8 + (888 − ((8 + 8)/8 + 88)) := 9 × (9 × 9 + 9) − 9 := 9 × (9 × 9 + 9) + ((9 − 9 × 9)/(9 + 9)) := 9 + (9999/9 − (9 + 9) × (9 + 9)) Ï 797 := ((11 × (1 + ((1 + 11)1+1 ))) − 1)/(1 + 1) Ï 802 := (1 + 1) × (1 + (((1 + 1) × (11 − 1))1+1 )) Ï 807 := (1 + ((1 + 1) × (11 × (111 − 1))))/(1 + 1 + 1) := 2/2 + (2 × ((22 − 2) − 2)) := 2 + (2 × (22 − 2) ) := 2 + ((2 × ((22 − 2)2 + 2)) + 2/2) := 3 + (((33 × (33 − 3)) − 3/3) + 3) := 33+3 + (((3 + 3)3 + 3)/3) := (33 × (33 + 3)) − 3 := (4 × 44) + ((4/4 + 4)4 − 4) := 4/4 + ((4/4 + 4)4 + (4 × 44)) 2 2 := 4 + ((((4 × 4 + 4) × (44 − 4)) − 4/4) + 4) := 5 + ((((555 + 5 ) + 5)/5) + 55) := (5 + 5)/5 + (5 × (5 × ((5 + 5)/5) )) := 5 + ((5 × (5 × ((5 + 5)/5)5 )) + ((5 + 5)/5)) := 6 + (66 × (6 + 6) − 6/6) := 66 × (6 + 6) + (66 − 6)/6 := 6 + ((((6 × 6/(6 + 6))6 ) + 66) + 6) := 7 + (((777 − 7/7) + 7) + 7) := 7 + ((77/7 + 777) + 7) := (7 × 7 × (7 + 7)) + (((7 + 7)/7)7 − 7) := 8 + (888 − (88/8 + 88)) := 888 + (((8 + 8)/8) − 88) := 8 + (888 − (8/8 + 88)) := 9 × (9 × 9 + 9) − ((99 + 9 + 9)/9) := 9/9 + (9 × (9 × 9 + 9) − 9) := 9 × (9 × 9 + 9) − (9 + 9 + 9)/9 5 5 63 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 808 := (1 + 1)1+1+1 × (1 + (11 − 1)1+1 ) Ï 813 := ((1 + 1) × (11 × (111/(1 + 1 + 1)))) − 1 Ï 818 := 1 + (1 + (((1 + 1)11 ) − (11 × (1 + 111)))) := 2 × (((22 − 2)2 + 2) + 2) := 2 + ((2 × (22 − 2)2 ) + 22/2) := 22 + (2 × ((22 − 2)2 − 2)) := 3/3 + ((33 × (33 + 3)) − 3) := 3 + (33 × (33 + 3)) := 33 + ((33 × (33 − 3)) − 3/3) := 4 + (((4 × 4 + 4) × (44 − 4)) + 4) := 44 + ((4 × (4 × (44 + 4))) + 4/4) := 4 + (((44 − 4)/4 × (4 − 4/4)4 ) + 4) := 5 + ((((5 − (5 + 5)/5)5 ) + 555) + 5) := (55 × (5 + 5 + 5)) − (55 + 5)/5 := (55 × (5 + 5 + 5)) − ((5 + 5)/5 + 5) := 6 + (66 × (6 + 6) + ((66 − 6)/6)) := 6 × 6 + (666/6 + 666) := (6 − (((6 + 6)/6)6+6 ))/(6/6 − 6) := 7 × 7 + (777 − (77/7 + 7)) := 7/7 + ((777 − (7 + 7)) + 7 × 7) := 7 × 7 + (777 − (7/7 + 7)) := 8 + (888 − 88) := 888 − (88/8 + 8 × 8) := 8 + ((8/8 + 8) × ((8 + 8)/8 + 88)) := 9 × (9 × 9 + 9) − (9 + 9)/9 := 9 × (9 × 9 + 9) + ((9 + 9 + 9)/9) := 9 + (9 × (9 × 9 + 9) − 9/9) Ï 809 := ((11 − 1) × (11 − 1 − 1)1+1 ) − 1 Ï 814 := (1 + 1) × (11 × (111/(1 + 1 + 1))) := 2/2 + (2 × (((22 − 2)2 + 2) + 2)) := 22 + (22 × (2 + 2 + 2)2 ) := (33 × (33 + 3)) − 3/3 := 3 + ((33 × (33 + 3)) + 3/3) 4 Ï 819 := 111+1+1 − (1 + 1)11−1−1 := ((22 + 2)2 ) + (222 + 2)/2 := 3 × ((3 × (3 × (33 + 3))) + 3) 4 := 4 + (((4/4 + 4) + (4 × 44)) + 4) := 4 + ((44 − 4)/4 × (4 − 4/4) ) := (((4 + 4)4 ) − 4/4)/(4/4 + 4) := (55 × (5 + 5 + 5)) − (55/5 + 5) := (55 × (5 + 5 + 5)) − 55/5 := (55 × (5 + 5 + 5)) − (5/5 + 5) := 6 + (66 × (6 + 6) + (66/6)) := (66/6) × ((((6 + 6)/6) + 66) + 6) := 7 + (((77/7 + 777) + 7) + 7) 7 := (6/6 + 6) × (666/6 + 6) := (7 × 7 × (7 + 7)) + ((7 + 7)/7) := 7 × 7 + (777 − 7) := 8 + ((888 − 88) + 8/8) := 8 × 88 + ((888 − 8)/8) := 8 + ((888 − 88) + (88/8)) := 9 × (9 × 9 + 9) − 9/9 := 99/9 × ((((9 + 9)/9) − 9) + 9 × 9) := 9 + 9 × (9 × 9 + 9) Ï 810 := (11 − 1) × (11 − 1 − 1)1+1 Ï 815 := 1 + ((1 + 1) × (11 × (111/(1 + 1 + 1)))) Ï 820 := (11 − 1) × (1 + (11 − 1 − 1)1+1 ) := 2 + (2 × (((22 − 2)2 + 2) + 2)) := 22/2 + (2 × ((22 − 2)2 + 2)) := 22 + ((2 × (22 − 2)2 ) − 2) := 33 × (33 + 3) := 3 + (((33 × (33 + 3)) − 3/3) + 3) := 33 + ((33 × (33 − 3)) + 3/3) := (44 − 4)/4 × (4 − 4/4)4 := 4 × 4 × 44 + 444/4 := (((4 + 4)4 ) + 4)/(4/4 + 4) := (5 + 5 + 5) × (55 − 5/5) := (55 × (5 + 5 + 5)) − 5 − 5 := (55 × (5 + 5 + 5)) − 5 := 6 + ((66 × (6 + 6) + 6) + 6) := 6 + ((66 × (6 + 6) + (66/6)) + 6) := 6 + (((66 + 66)/6) + 66 × (6 + 6)) := (7 − 7/7) × (((7 + 7)/7) + 7) := 7 × 7 + (777 − (77/7)) := 7/7 + (777 − 7 + 7 × 7) := (8/8 + 8) × ((8 + 8)/8 + 88) := 8 × 88 + 888/8 := (((88/8 − 8)8 ) − 8/8)/8 := 9 × (9 × 9 + 9) := 9 × (9 × 9 + 9) + ((9 × 9 + 9)/(9 + 9)) := 9 + (9 × (9 × 9 + 9) + 9/9) 7 Ï 811 := 1 + (11 − 1) × (11 − 1 − 1)1+1 Ï 816 := ((1 + 1)11 ) − (11 × (1 + 111)) Ï 821 := 1 + ((11 − 1) × (1 + (11 − 1 − 1)1+1 )) := 22/2 + (2 × (22 − 2)2 ) := 2 × ((22 − 2)2 + 2 × (2 + 2)) := 22 + ((2 × (22 − 2)2 ) − 2/2) := 3/3 + (33 × (33 + 3)) := 3 + ((33 × (33 + 3)) + 3) := 33/3 + (33 × (33 + 3)) := 44 + (4 × 44 − (4/4 + 44 )) := 4 × (4 × (44 − 4) + 44) := 4 + ((4 × (44 + 4)) + (4/4 + 4)4 ) := 5/5 + ((5 + 5 + 5) × (55 − 5/5)) := 5/5 + ((55 × (5 + 5 + 5)) − (5 + 5)) := 5/5 + ((55 × (5 + 5 + 5)) − 5) := 6 + (((66 × (6 + 6) + 6/6) + 6) + 6) := (6 + 6) × (((6 + 6)/6) + 66) := 6 × 6 + (66 × (6 + 6) − (6/6 + 6)) := 77 + ((7 × (7 × (7 + 7) + 7)) − 7/7) := 7 × 7 + (((7 − 77)/7) + 777) := 7 + ((7 × 7 × (7 + 7)) + ((7 + 7)/7)7 ) := 888 + (88/8 − 88) := 888 − (8 × 8 + 8) := 8 × (88 + 8 + 8) − 88/8 := 9/9 + 9 × (9 × 9 + 9) := (9 − 9/9) × (999/9 − 9) := 99/9 + 9 × (9 × 9 + 9) Ï 812 := 1 + 1 + (11 − 1) × (11 − 1 − 1)1+1 Ï 817 := 1 + (((1 + 1)11 ) − (11 × (1 + 111))) := 2 × ((((22 − 2)2 + 2) + 2) + 2) := ((22 + 2)2 ) + (222 − 2)/2 := 3 + ((33 × (33 + 3)) − 3/3) := 3 + (((33 × (33 + 3)) + 3/3) + 3) Ï 822 := (1 + 1) × (11 + (((1 + 1) × (11 − 1))1+1 )) := 22 + (2 × (22 − 2)2 ) 4 := 3 + ((33 × (33 − 3)) + 33 ) := (4 + 4)/4 + ((((4 + 4)4 ) + 4)/(4/4 + 4)) := 44 + (4 × (4 × (44 + 4))) := (4 × (44 + 4)) + (4/4 + 4) := ((5 + 5)/5 + 5) × (555/5 + 5) := 5 + (((5 + 5)/5 + 5) × (555/5 + 5)) := (5 + 5)/5 + ((55 × (5 + 5 + 5)) − 5) := (6/6 + 6) × (((666 − 6)/6) + 6) := 6 × 6 + (66 × (6 + 6) − (66/6)) := 6 × 6 + (66 × (6 + 6) − 6) 7 := 77 + (7 × (7 × (7 + 7) + 7)) := 7 + ((7 − 7/7) × (((7 + 7)/7) + 7)) := 888 + ((88 + 8)/8 − 88) := 8/8 + (888 − (8 × 8 + 8)) := 888 − (((8 + 8)/8) + 8 × 8) := (9 + 9)/9 + 9 × (9 × 9 + 9) := 9 + (9 × (9 × 9 + 9) − ((9 + 9)/9)) := 9 × (9 × 9 + 9) + (99 + 9)/9 64 := 7 + ((777 − (77/7)) + 7 × 7) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 823 := 1111 − ((1 + 1) × ((1 + 11)1+1 )) Ï 828 := 1 + (((1 + 1)11 ) − 11 × 111) Ï 833 := 1 + ((1 + (1 + 11)) × ((1 + 1)(1+1)×(1+1+1) )) := 22 + ((2 × (22 − 2)2 ) + 2/2) := (22+2 + 2) × ((2 × 22) + 2) := 22 + ((2 × (22 − 2)2 ) + 22/2) := 3 + (((33 × (33 − 3)) + 33 ) + 3/3) := 3 × 33 + 33+3 := (3333 − 3/3)/(3/3 + 3) := 4 + ((((4 + 4)4 ) − 4/4)/(4/4 + 4)) := (4 × (4 × (44 + 4 + 4))) − 4 := 4/4 + (4 × (4 × (44 + 4 + 4))) := (55 × (5 + 5 + 5)) − (5 + 5)/5 := 5 + ((55 × (5 + 5 + 5)) − ((5 + 5)/5)) := 55 /5 + ((55 − 5)/(5 + 5 + 5)) := 6 × 6 + ((66 × (6 + 6) − 6) + 6/6) := 6 × ((66 + 66) + 6) := 6 + ((66 × (6 + 6) − 6/6) + 6 × 6) := 7 × 7 + (777 − ((7 + 7 + 7)/7)) := 7 × 7 + (((7 + 7)/7) + 777) 8 := 7 + (777 + 7 × 7) := 888 − (8/8 + 8 × 8) := 8 + ((((88/8 − 8) ) − 8/8)/8) := 8/8 + 8 × (88 + 8 + 8) := 9 × (9 × 9 + 9) + ((99 + 9 + 9)/9) := 99 + 9 × 9 × 9 := 9 + ((9 − 9/9) × (((999 + 9)/9) − 9)) Ï 824 := 1 + (1111 − ((1 + 1) × ((1 + 11)1+1 ))) 2 Ï 829 := 1 + (1 + (((1 + 1)11 ) − 11 × 111)) 2+2 := (22 × ((2 + 2 + 2)2 + 2)) − 2 := 2 + ((2 × (22 − 2) ) + 22) := 2/2 + ((2 := 3 + ((33 × (33 + 3)) + 33/3) := 3/3 + (3 × 33 + 33+3 ) := 3 + ((3 × 33 + 33+3 ) + 3) := 4 + ((((4 + 4)4 ) + 4)/(4/4 + 4)) := 4 + (44/4 × ((44 + 44 )/4)) := (4 + 4)/4 + (4 × (4 × (44 + 4 + 4))) := (55 × (5 + 5 + 5)) − 5/5 := 5 + ((55 × (5 + 5 + 5)) − 5/5) := 5 + (((55 × (5 + 5 + 5)) − 5/5) + 5) := 6 × 6 + (66 × (6 + 6) + 6/6) := 6 + (66 × (6 + 6) + 6 × 6) := 7 × 7 + (777 − ((7 + 7)/7)) := (77/7 × (77 − 7/7)) − 7 := 7 + ((777 + 7 × 7) + 7/7) := 888 − 8 × 8 := 8 + (8 × (88 + 8 + 8) − 88/8) := (8 + 8)/8 + 8 × (88 + 8 + 8) := (9 − 9/9) × (((999 + 9)/9) − 9) := 9/9 + (9 × 9 × 9 + 99) := (9999 + 9)/((99 + 9)/9) 6+6 := 6 + ((6 − (((6 + 6)/6) ))/(6/6 − 6)) Ï 825 := 11 × (1 + ((1 + 1) × (111/(1 + 1 + 1)))) 2 + 2) × ((2 × 22) + 2)) Ï 834 := (1 + 1) × ((11 × (1 + (111/(1 + 1 + 1)))) − 1) Ï 830 := (11 − 1) × (1 + (1 + (11 − 1 − 1)1+1 )) 2+2 := (22 × ((2 + 2 + 2)2 + 2)) − 2/2 := ((2 × 22) ) − (2222/2) := 2 + ((2 := 33 + (33 × (33 − 3)) := 3 + ((33+3 − 3/3) + 3 × 33) := 3 + ((33 − 3/3) × (33 − 3/3)) := 44/4 × ((44 + 44 )/4) := (4 × (4 × (44 + 4 + 4))) − (4 + 4)/4 := 4 + ((4 × (4 × (44 + 4 + 4))) − 4/4) := 55 × (5 + 5 + 5) := 5 + (55 × (5 + 5 + 5)) := 5 + ((55 × (5 + 5 + 5)) + 5) := 6 + ((6/6 + 6) × (666/6 + 6)) := 6 × 6 + (66 × (6 + 6) + ((6 + 6)/6)) := 6 + ((66 × (6 + 6) + 6 × 6) + 6/6) := 7 × 7 + (777 − 7/7) := 7 × 7 + ((777 − 7) + (77/7)) := (77 × 77 − (77 + 7))/7 := 8/8 + (888 − 8 × 8) := 8 × (88 + 8 + 8) − (8 + 8)/8 := 888 + (88/8 − 8 × 8) := 9 + ((9 − 9/9) × (999/9 − 9)) := 9 + (9 × (9 × 9 + 9) + (99/9)) := 9 + ((9 × 9 × 9 − ((9 + 9)/9)) + 99) Ï 826 := ((1 + 1)11 ) − (1 + 11 × 111) + 2) × ((2 × 22) + 2)) Ï 835 := 1111 − ((1 + 11) × (1 + (11 + 11))) Ï 831 := 1 + ((11 − 1) × (1 + (1 + (11 − 1 − 1)1+1 ))) Ï 836 := (1 + 1) × (11 × (1 + (111/(1 + 1 + 1)))) := 22 + (2 × ((22 − 2)2 + 2)) := (2/2 + 2) × ((((22 + 2) ) − 22)/2) := 22 × ((2 + 2 + 2)2 + 2) := 3/3 + ((33 × (33 − 3)) + 33) := 3 + (3 × 33 + 33+3 ) := 33 + ((33 × (33 + 3)) − 3/3) := ((44 × ((44 + 44 )/4)) + 4)/4 := (4 × (4 × (44 + 4 + 4))) − 4/4 := 4 + (4 × (4 × (44 + 4 + 4))) := 5/5 + (55 × (5 + 5 + 5)) := 5 + ((55 × (5 + 5 + 5)) + 5/5) := 55/5 + (55 × (5 + 5 + 5)) := 6 × 6 + (66 × (6 + 6) − ((6 + 6)/6)) := 6 × 6 + (((6 × 6/(6 + 6)) ) + 66) := (66/6) × ((((6 + 6)/6)6 + 6) + 6) := 7 × 7 + 777 := 7 + ((777 − ((7 + 7)/7)) + 7 × 7) := 77/7 × (77 − 7/7) := 888 + (((8 + 8)/8) − 8 × 8) := 8 × (88 + 8 + 8) − 8/8 := 888 + ((88 + 8)/8 − 8 × 8) := 99 + (9 × 9 × 9 − ((9 + 9)/9)) := 9 × 9 × 9 + (999/9 − 9) := 9 + ((9 × 9 × 9 − 9/9) + 99) Ï 827 := ((1 + 1)11 ) − 11 × 111 2 6 Ï 832 := (1 + (1 + 11)) × ((1 + 1)(1+1)×(1+1+1) ) Ï 837 := ((1 + 1)11 ) − (1 + (11 × (111 − 1))) := 2 + (((2 × 22)2 ) − (2222/2)) := 2 × ((22 − 2)2 + 22+2 ) := 2/2 + (22 × ((2 + 2 + 2)2 + 2)) := 3 × 33 + (33+3 − 3/3) := (33 − 3/3) × (33 − 3/3) := 3 × (3 × ((3 × (33 + 3)) + 3)) := (4 × (4 × (44 + 4 + 4))) − (4/4 + 4) := 4 × (4 × (44 + 4 + 4)) := 44 + ((4/4 + 4)4 − 44) := (5 + 5)/5 + (55 × (5 + 5 + 5)) := (5 × 5 + 5/5) × ((5 + 5)/5)5 := 5 + ((5 × 5 + 5/5) × ((5 + 5)/5)5 ) := 6 × 6 + (66 × (6 + 6) − 6/6) := (6/6 + 6 + 6) × ((6 + 6)/6)6 := (66 × 66 + 666)/6 := 7/7 + (777 + 7 × 7) := 7 + ((777 − 7/7) + 7 × 7) := 7 × 7 + (77/7 + 777) := 888 + (88/8 − (8 × 8 + 8)) := 8 × (88 + 8 + 8) := 8 + ((8 × (88 + 8 + 8) − 88/8) + 8) := 99 + (9 × 9 × 9 − 9/9) := 9 × 9 × 9 + (((999 + 9)/9) − 9) := 9 + (9 × 9 × 9 + 99) 65 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 843 := 1 + (1 + ((((11 − 1) × (1 + 1 + 1)) − 1)1+1 )) Ï 838 := ((1 + 1)11 ) − (11 × (111 − 1)) 2 2 Ï 848 := 1 + (11 × (11 × (1 + ((1 + 1) × (1 + 1 + 1))))) := 2 + (22 × ((2 + 2 + 2) + 2)) := 2 + (((((22 + 2/2) + 2) + 2) + 2) ) := 2 × (((22 − 2)2 + 22) + 2) := 33 + ((33 × (33 + 3)) + 3/3) := 33 + (33 × (33 + 3)) := 3 + (((3 − 3/3)3×3 ) + 333) := (4 − 44)/4 + 4 × (44 − 44) := 4 × (44 − 44) − (4/4 + 4) := 4 × (44 − 44) := 5 + (((55 − 5)/(5 + 5 + 5)) + 55 /5) := 55 /5 + (((5 − (5 + 5)/5)5 ) − 5 × 5) := (55/5 + 5) × (55 − (5 + 5)/5) := 6 + ((6/6 + 6 + 6) × ((6 + 6)/6) ) := 6 + ((66 × 66 + 666)/6) := ((66 × (66/6 + 66)) + 6)/6 := ((77 × 77 − (7 + 7))/7) − 7 := 7 + (77/7 × (77 − 7/7)) := (77 × 77 + 7)/7 := 8 + (8 × (88 + 8 + 8) − ((8 + 8)/8)) := 88/8 + 8 × (88 + 8 + 8) := 8 + (8 × (88 + 8 + 8) + 8) := 9 + ((9 × 9 × 9 + 99) + 9/9) := 9 + ((9999 + 9)/((99 + 9)/9)) := 9 + ((9 × 9 × 9 + (99/9)) + 99) 6 Ï 839 := 1 + (((1 + 1)11 ) − (11 × (111 − 1))) Ï 844 := (1 + 1) × ((1 + 1) × ((1 + 1) × 111 − 11)) Ï 849 := ((1 + 1)11 ) − (11 × (111 − 1 − 1)) := ((2 − 22) × (2 − (2 × 22))) − 2/2 := 2 × ((22 − 2)2 + 22) := 2 + ((2 × 222 ) − (22/2)2 ) := 33+3 + ((333 − 3)/3) := 3 + (((333 + 3)/3) + 33+3 ) := (33 × 33 ) − (3 × 3 + 33) := 4444/4 − (4 × 4 + 44 ) := 4 × (44 − 44) − 4 := 4/4 + 4 × (44 − 44) := ((5 + 5 + 5) × (55 + 5/5)) − 5/5 := 5 × 55 + ((55 − 5)/5 − 55) := 5 × 5 + ((55 × (5 + 5 + 5)) − 5/5) := 6 × 6 + (66 × (6 + 6) + (66/6)) := 6 + (((6/6 + 6 + 6) × ((6 + 6)/6)6 ) + 6) := 6 + (((66 × 66 + 666)/6) + 6) := ((77 × 77 − 7)/7) − 7 := (77 × 77 − (7 + 7 + 7))/7 := ((77 × 77 + 7) + 7)/7 := 8 + (8 × (88 + 8 + 8) − 8/8) := 888 − (88/((8 + 8)/8)) := 8 + ((8 × (88 + 8 + 8) + 8/8) + 8) := 99 + (9 × 9 × 9 + (99/9)) := 9 + (((9 × 9 × 9 − ((9 + 9)/9)) + 99) + 9) := 9 + (999/9 + 9 × 9 × 9) Ï 840 := 111 + (11 − 1 − 1)1+1+1 Ï 845 := (1 + (1 + (1 + 1 + 1))) × ((1 + (1 + 11))1+1 ) Ï 850 := 111+1 + (11 − 1 − 1)1+1+1 := 2/2 + (2 × ((22 − 2)2 + 22)) := 2 + (2 × (((22 − 2)2 + 22) + 2)) := 333 + ((3 − 3/3)3×3 ) := 33+3 + ((33/3)3−3/3 ) := 4 × (4 − 44) − 4 − 4 := 4/4 + (4 × (44 − 44) − 4) := (4 + 4)/4 + 4 × (44 − 44) := (5 + 5 + 5) × (55 + 5/5) := 5 + ((5 + 5 + 5) × (55 + 5/5)) := 5 × ((5 × ((5 × 5 + 5) + 5)) − 5) := (6 + 6) × (((6 + 6)/6)6 + 6) := (6/6 + 6 + 6) × (66 − 6/6) := 66 × (6 + 6) + (((6 + 6)/6)6 − 6) := (77 × (77/7)) − 7 := (77 × 77 − (7 + 7))/7 := (((77 × 77 + 7) + 7) + 7)/7 := 8 + 8 × (88 + 8 + 8) := 88 + (8 × (88 + 8) − (88/8)) := 8 + ((8 × (88 + 8 + 8) + ((8 + 8)/8)) + 8) := 9 × 9 × 9 + 999/9 := 9 + (((9 × 9 × 9 − 9/9) + 99) + 9) := 9 + (((999 + 9)/9) + 9 × 9 × 9) := (2 − 22) × (2 − (2 × 22)) := 3 3+3 + 333/3 4 Ï 841 := (((11 − 1) × (1 + 1 + 1)) − 1)1+1 := ((((22 + 2/2) + 2) + 2) + 2) := 3 3+3 2 + ((333 + 3)/3) 4 4 := 4 + (((4/4 + 4) − 44) + 4 ) := (5 × 5 − 5/5 + 5) (5+5)/5 (6+6)/6 Ï 846 := (11 × (11 × (1 + ((1 + 1) × (1 + 1 + 1))))) − 1 2 Ï 851 := (1 + (11 + 11)) × (111/(1 + 1 + 1)) := 2 + (2 × ((22 − 2) + 22)) := (2 × (222 + 2)) − (22/2)2 := 3 + ((33 × (33 + 3)) + 33) := 33+3 + ((33+3 + 3)/(3 + 3)) := 4 × (44 − 44) − (4 + 4)/4 := 4 + (4 × (44 − 44) − 4/4) := 5 + ((5 × 5 − 5/5 + 5)(5+5)/5 ) := 5 × 5 + ((55 × (5 + 5 + 5)) + 5/5) := 666 + 6 × (6 × 6 − 6) := 6 + ((6/6 + 6 + 6) × (66 − 6/6)) := ((77 × 77 + 7)/7) − 7 := (77 × 77 − 7)/7 := (77/7 × (7/7 + 77)) − 7 := 8 + (8 × (88 + 8 + 8) + 8/8) := (8/8 + 8) × ((88 − ((8 + 8)/8)) + 8) := 8 + (8 × (88 + 8 + 8) + 88/8) := 9 × 9 × 9 + ((999 + 9)/9) := 9 + ((9 × 9 × 9 + 99) + 9) := 9 × 9 × 9 + (999 + 99)/9 := (6 × 6 − (6/6 + 6)) Ï 842 := 1 + ((((11 − 1) × (1 + 1 + 1)) − 1)1+1 ) := 2 + ((2 − 22) × (2 − (2 × 22))) 3+3 Ï 847 := 11 × (11 × (1 + ((1 + 1) × (1 + 1 + 1)))) := (2 × 222 ) − (22/2)2 Ï 852 := 11 + ((((11 − 1) × (1 + 1 + 1)) − 1)1+1 ) := 2 × ((2 × (222 + 2)) − 22) := 33/3 × (3 × 3 − (3/3 + 3)) := (3/3 + 3) × ((3 + 3)3 − 3) := 4 × (44 − 44) − ((4 + 4)/4 + 4) := 4 × (44 − 44) − 4/4 := 4 + 4 × (44 − 44) := 5 + (((5 × 5 + 5/5) × ((5 + 5)/5)5 ) + 5) := ((555 + 555) + 55 )/5 := 5 + (((555 + 555) + 55 )/5) := 6 + ((66/6) × ((((6 + 6)/6)6 + 6) + 6)) := (66/6) × (66/6 + 66) := 66 + (66 × (6 + 6) − 6) := (((77 × 77 + 7) + 7)/7) − 7 := 77 × (77/7) := 7 + ((77 × 77 − (7 + 7))/7) := 3 + (((333 − 3)/3) + 3 ) 3 := 8 + (8 × (88 + 8 + 8) + ((8 + 8)/8)) := 88/8 × (88 − 88/8) := 8 + (888 − (88/((8 + 8)/8))) := 9 × 9 × 9 + ((999 + 9 + 9)/9) := 9 + (((9 × 9 × 9 + 99) + 9/9) + 9) := ((99 + 9)/9) × (9 × 9 − (9/9 + 9)) 66 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 853 := (((1 + 11)1+1+1 )/(1 + 1)) − 11 Ï 858 := 11 × (111 − (11 × (1 + 1 + 1))) := (2 × (222 − 2)) − 222/2 := 22 × (2 × (22 − 2) − 2/2) := 3/3 + ((3/3 + 3) × ((3 + 3)3 − 3)) 3 Ï 863 := (((1 + 11)1+1+1 )/(1 + 1)) − 1 := ((22 + 2) × (2 + 2 + 2)2 ) − 2/2 := (33 × 33 ) − (33 + 3/3) := 33 × (3 − 3/3) 4 := 4 + (4 × (44 − 44) + 4/4) := 4 + ((4444 − 4)/4 − 4 ) := (4 × (44 − 44 + 4)) − 4/4 := 5 + ((55/5 + 5) × (55 − (5 + 5)/5)) := 55 /5 + (((5 − (5 + 5)/5)5 ) − (5 + 5)) := 55 /5 + (((5 − (5 + 5)/5)5 ) − 5) := (6 × (6 + 6) × (6 + 6)) − 66/6 := 66 + 66 × (6 + 6) := (6 × (6 + 6) × (6 + 6)) − 6/6 := 7 + ((77 × 77 − 7)/7) := 77/7 × (7/7 + 77) := 7 + ((((77 × 77 + 7) + 7)/7) + 7) := 888 − ((88/8 + 8 + 8) + 8) := 88 + (8 × (88 + 8) + ((8 + 8)/8)) := 888 − (8/8 + 8 + 8 + 8) := 9 × 99 − ((99/9 + 9 + 9) + 9) := 9 + ((999/9 + 9 × 9 × 9) + 9) := 9 × 99 − ((9/9 + 9 + 9) + 9) Ï 854 := 1 + ((((1 + 11)1+1+1 )/(1 + 1)) − 11) Ï 859 := 1 + (11 × (111 − (11 × (1 + 1 + 1)))) := 2 + (2 × ((2 × (222 + 2)) − 22)) := 3 3+3 3 2 := 2 + ((2 × 22 ) − 222/2) 3 + ((3 − 3/3 + 3) ) := 3/3 + (33 × (3 − 3/3)) Ï 864 := ((1 + 11)1+1+1 )/(1 + 1) := (22 + 2) × (2 + 2 + 2)2 := 3 × 3 × (3 × 33 − 3) := (4444 − 4)/4 − 44 := 4 + (4444/4 − 4 ) := 4 × (44 − 44 + 4) := 555 + ((5 × (55 + 5)) − 5/5) := ((55/5 + 5) × (55 − 5/5)) − 5 := (55/5 + 5) × (55 − 5/5) := (6/6 + 6) × ((666 + 66)/6) := 66 + (66 × (6 + 6) + 6/6) := 6 × (6 + 6) × (6 + 6) := 77 + 777 := ((77 × 77 + 77) + 7)/7 := (77/7 + 7) × (7 × 7 − 7/7) 4 := 88 + (8 × (88 + 8) − ((8 + 8)/8)) := 8 + ((8 × (88 + 8 + 8) + 88/8) + 8) := (88 + 8) × (8/8 + 8) := 9 × 99 − (((9/9 + 9 + 9) + 9) + 9) := 9 + ((((999 + 9)/9) + 9 × 9 × 9) + 9) := 9 × 99 − (9 + 9 + 9) Ï 855 := 1111 − (1 + 1)(1+1) 1+1+1 Ï 860 := (1 + 1) × (((11 + (11 − 1))1+1 ) − 11) Ï 865 := 1 + (((1 + 11)1+1+1 )/(1 + 1)) := (2 × 222 ) − (222/2 + 2) := (2 − 22) × (2/2 − (2 × 22)) := 2/2 + ((22 + 2) × (2 + 2 + 2)2 ) := 3 × (3 × (3 × 33 − 3) − 3) := (3/3 + 3) × ((3 + 3)3 − 3/3) := 3/3 + (3 × 3 × (3 × 33 − 3)) := (4/4 + 4) × ((4 × 44) − 4) := 4/4 + (4 × (44 − 44 + 4)) := 555 + (5 × (55 + 5)) := 5 + ((5 × (55 + 5)) + 555) := (5 × (5 × ((5 × 5 + 5) + 5))) − 5 − 5 := 6 × 6 + ((6/6 + 6) × (666/6 + 6)) := 66 + (66 × (6 + 6) + ((6 + 6)/6)) := 6/6 + (6 × (6 + 6) × (6 + 6)) := 7 + ((77 × 77 + 7)/7) := 7 + (((77 × 77 − 7)/7) + 7) := 7 + (77/7 × (7/7 + 77)) := 88 + (8 × (88 + 8) − 8/8) := 888 + ((8 − 8 × 8)/((8 + 8)/8)) := 8/8 + (88 + 8) × (8/8 + 8) := 9 × 99 − ((9 + 9 + 9) + 9) := 9 × 99 − (((99 + 99)/9) + 9) := 9/9 + (9 × 99 − (9 + 9 + 9)) := 4444/4 − 4 4 Ï 856 := (11 − 1)1+1+1 − ((1 + 11)1+1 ) := 2 × (2 × (222 − 2 × (2 + 2))) := (3 × 3 3+3 3 Ï 861 := (1 + 1 + 1) × (((1 + 1) × ((1 + 11)1+1 )) − 1) 2 := (2/2 + 2) × ((22 + 2) − 2)/2 3 ) − ((33/3) ) 4 := 4 + (4 × (4 − 44) + 4) := 5/5 + ((5 × (55 + 5)) + 555) 6 Ï 866 := 1 + (1 + (((1 + 11)1+1+1 )/(1 + 1))) := (2 × 2 × 222) − 22 := 3 + (33 × (3 − 3/3)) := 3 + ((33 × 33 ) − (33 + 3/3)) := 4/4 + ((4/4 + 4) × ((4 × 44) − 4)) := (4 + 4)/4 + (4 × (44 − 44 + 4)) 5 := 5 × 5 × 5 + ((555 + 5 )/5) 6 := 5 + (((555 + 55 )/5) + 5 × 5 × 5) := 66 × (6 + 6) + ((6 + 6)/6) := 66 + (((6 × 6/(6 + 6)) ) + 66) := (6 + 6)/6 + (6 × (6 + 6) × (6 + 6)) := 7 + (((77 × 77 + 7) + 7)/7) := 7 + (777 + 77) := 7 + (((77 × 77 + 77) + 7)/7) := 88 + 8 × (88 + 8) := 888 − (88/8 + 8 + 8) := 888 − (88 + 88)/8 := (9 − 9/9) × ((99 − 9/9) + 9) := (9 × (99 + 9)) − 999/9 := (9 + 9)/9 + (9 × 99 − (9 + 9 + 9)) Ï 857 := ((1 + 1) × ((11 + 11)1+1 )) − 111 2 := (2 × 22 ) − 222/2 3 := (33 × 3 ) − (3/3 + 33) Ï 862 := (((1 + 11)1+1+1 )/(1 + 1)) − 1 − 1 := 2 × (2 × 222 − 2) − 22 3 := 3 + ((33 × (3 − 3/3)) + 3/3) Ï 867 := 1 + (1 + (1 + (((1 + 11)1+1+1 )/(1 + 1)))) := 2/2 + ((2 × 2 × 222) − 22) := 3 + (3 × 3 × (3 × 33 − 3)) := 4 + ((4 × (4 − 44) + 4/4) + 4) := (4 × (4 − 44 + 4)) − (4 + 4)/4 := 4 + ((4 × (44 − 44 + 4)) − 4/4) := ((5 + 5)/5)5 + (55 × (5 + 5 + 5)) := 555 + (55 − 55)/(5 + 5) := 555 + (55 − 5)/(5 + 5) := 66 + (66 × (6 + 6) − 6/6) := (6 × (6 + 6) × (6 + 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × (6 + 6) × (6 + 6)) 4 4 := ((77 × 77 − 7) + 77)/7 := 7 + (((77 × 77 + 7)/7) + 7) := 7 + ((((77 × 77 − 7)/7) + 7) + 7) := 8/8 + (8 × (88 + 8) + 88) := 888 + ((8 − 88)/8 − (8 + 8)) := 88 + (8 × (88 + 8) + (88/8)) := 9 + (((9 × 9 × 9 + (99/9)) + 99) + 9) := 9 × 99 − (99/9 + 9 + 9) := 9 + (((999/9 + 9 × 9 × 9) + 9) + 9) 67 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 868 := 1111 − (1 + ((1 + 1) × 111+1 )) := 2 + ((2 × 2 × 222) − 22) 3 := (3/3 + 3) × ((3 + 3) + 3/3) 4 Ï 873 := 1 + ((1 + 1)1+1+1 × (111 − 1 − 1)) Ï 878 := 1 + ((111 × (1 + 1)1+1+1 ) − 11) := 2 + (((((2 × 22) − 2)2 ) − 22)/2) := 2 × (((22 − 2/2)2 ) − 2) := 3 × (3 × (3 × 33 − 3) + 3) := (33 × 33 ) + (((3 − 33)/3) − 3) 4 4 := 4 + (4 × (4 − 44 + 4)) := 4 + ((4/4 + 4) − (4 + 4)) := 44 × (4 × 4 + 4) − (4 + 4)/4 := 55 /5 + ((5 − (5 + 5)/5)5 ) := 5 + (((5 − (5 + 5)/5)5 ) + 55 /5) := (55 × (55/5 + 5)) − (5 + 5)/5 := 6 + ((6 × (6 + 6) × (6 + 6)) − ((6 + 6)/6)) := (6 + 6) × (6 + 6) + ((6 × 6/(6 + 6))6 ) := 6 + (((6 × (6 + 6) × (6 + 6)) + ((6 + 6)/6)) + 6) := 7 + (777 + 77 + 7) := 777 + (7 × (7 + 7) − ((7 + 7)/7)) := 7 + (7 × (77 + 7 × 7) − (77/7)) := 888 − (((88 + 8)/8) + 8) := 8/8 + (888 − (8 + 8)) := 888 + (8 − 88)/8 := 9 × 99 − ((99 + 99 + 9)/9) := 9 × 99 − (9 + 9) := 9 × 99 − ((99 + 9 + 9)/9) Ï 869 := 11 × ((11 − 1 − 1)1+1 − (1 + 1)) Ï 874 := 11 + ((((1 + 11)1+1+1 )/(1 + 1)) − 1) Ï 879 := (11 − 1)1+1+1 − 111+1 := (2222 − 222 )/2 := 2 + (2 × (2 × (222 − (2 + 2)))) := (2 × (2 × (222 − 2))) − 2/2 := 33/3 + (33 × (33 − 3/3)) := 3/3 + (3 × (3 × (3 × 33 − 3) + 3)) := (33 × 33 ) − (3 × 3 + 3) := 44 × (4 × 4 + 4) − 44/4 := 44 × (4 × 4 + 4) − ((4 + 4)/4 + 4) := 44 × (4 × 4 + 4) − 4/4 := 5 + ((55/5 + 5) × (55 − 5/5)) := (5 × 5 × (5 + 5)) + (5 − 5)/5 := (55 × (55/5 + 5)) − 5/5 := 6 + ((6 × (6 + 6) × (6 + 6)) − 6/6) := ((66 − 6)/6) + (6 × (6 + 6) × (6 + 6)) := 6 + (((6 × 6/(6 + 6))6 ) + (6 + 6) × (6 + 6)) := 77/7 × ((7 + 7)/7 + 77) := 777 + (7 × (7 + 7) − 7/7) := 7 × (77 + 7 × 7) − (7 + 7 + 7)/7 := 888 − (88/8 + 8) := 888 + (((8 + 8)/8) − (8 + 8)) := 888 − (8/8 + 8) := 9 × 99 − ((99 + 99)/9) := 9/9 + (9 × 99 − (9 + 9)) := 9 × 99 − (99 + 9)/9 Ï 875 := 11 + (((1 + 11)1+1+1 )/(1 + 1)) Ï 880 := 11 × ((11 − 1 − 1)1+1 − 1) Ï 870 := 1 + (11 × ((11 − 1 − 1)1+1 − (1 + 1))) 5 := (2 × (2 × 222 + 2)) − 22 := (2 × 2 × 222) − (22/2 + 2) := 2 × (2 × (222 − 2)) := 3 + ((3 × 3 × (3 × 33 − 3)) + 3) := 33/3 + (3 × 3 × (3 × 33 − 3)) := (33 × 33 ) − 33/3 := 44 + ((4/4 + 4)4 − 44/4) := (4/4 + 4) × ((4 × 44) − 4/4) := 44 × (4 × 4 + 4) := (5 × (5 × ((5 × 5 + 5) + 5))) − 5 := 5 × (5 × ((5 × 5 + 5) + 5)) := 55 × (55/5 + 5) := 6 + (6 × (6 + 6) × (6 + 6)) := 66/6 + (6 × (6 + 6) × (6 + 6)) := 666 + (6 × 6 × 6 − (6 + 6)/6) := 7 × (77 + 7 × 7) − (77 + 7)/7 := 777 + 7 × (7 + 7) := (7/7 + 7) × (777 − 7)/7 := 888 + ((8 − 88)/8 − 8) := 888 − (88 + 8 + 8)/8 := 888 − 8 := 9 × 99 − (((99 + 9)/9) + 9) := (9 + 9)/9 + (9 × 99 − (9 + 9)) := 9 × 99 − 99/9 Ï 871 := 1111 − ((1 + 1) × (111+1 − 1)) Ï 876 := 1 + (11 + (((1 + 11)1+1+1 )/(1 + 1))) Ï 881 := 1 + (11 × ((11 − 1 − 1)1+1 − 1)) := ((((2 × 22) − 2)2 ) − 22)/2 := 2 × ((2 × (222 − 2)) − 2) := ((((2 × 22) − 2)2 ) − 2)/2 := 3 + ((3/3 + 3) × ((3 + 3)3 + 3/3)) := (3/3 + 3) × ((3 + 3)3 + 3) := (33 × 33 ) + ((3 − 33)/3) := 4 × 4 + (4444/4 − 44 ) := 44 × (4 × 4 + 4) − 4 := 44 + (4/4 + 4)4 := 5/5 + ((5 × (5 × ((5 × 5 + 5) + 5))) − 5) := 5/5 + (5 × (5 × ((5 × 5 + 5) + 5))) := 5/5 + (55 × (55/5 + 5)) := 6 + ((6 × (6 + 6) × (6 + 6)) + 6/6) := 6 + ((6 × (6 + 6) × (6 + 6)) + 6) := 666 + (6 × 6 × 6 − 6/6) := 7 × (77 + 7 × 7) − 77/7 := 7/7 + (777 + 7 × (7 + 7)) := 7 × (77 + 7 × 7) − 7/7 := 888 − (8/8 + 8 + 8) := 888 − (88 + 8)/8 := 8/8 + 888 − 8 := 9 × 99 − (99/9 + 9) := 9 × 99 + (((9 + 9 + 9)/9) − (9 + 9)) := 9 × 99 − 9/9 − 9 Ï 872 := (1 + 1)1+1+1 × (111 − 1 − 1) := 2 × (2 × (222 − (2 + 2))) 3 := (3/3 + 3) × (((3 + 3) − 3/3) + 3) Ï 877 := (111 × (1 + 1)1+1+1 ) − 11 := (2 × 2 × 222) − 22/2 3 := (33 × 3 ) − (33/3 + 3) 4 4 Ï 882 := (1 + 1) × ((11 + (11 − 1))1+1 ) := 2 × ((22 − 2/2)2 ) := 3 × (3 × 3 × 33 − 3) := 44 × (4 × 4 + 4) − 4 − 4 := 4 + ((4/4 + 4) − 4) := 4/4 + ((4/4 + 4)4 + 44 ) := 5 + ((55 − 5)/(5 + 5) + 555) := (5 + 5)/5 + (5 × (5 × ((5 × 5 + 5) + 5))) := (5 + 5)/5 + (55 × (55/5 + 5)) := 6 + ((6 × (6 + 6) × (6 + 6)) + ((6 + 6)/6)) := 6 + (((6 × (6 + 6) × (6 + 6)) + 6/6) + 6) := 666 + 6 × 6 × 6 := 7 + ((77/7 × (7/7 + 77)) + 7) := ((7 + 7)/7) + (777 + 7 × (7 + 7)) := 7 × (77 + 7 × 7) := 888 − 8 − 8 := 888 − 88/8 := 888 + (((8 + 8)/8) − 8) := 9 × 99 − (9/9 + 9 + 9) := 9 × 99 + (((9 − 99)/(9 + 9)) − 9) := 9 × 99 − 9 68 Inder J. Taneja Ï 883 := 1 + ((1 + 1) × ((11 + (11 − 1))1+1 )) := ((((2 × 22) − 2)2 ) + 2)/2 Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 888 := 111 × (1 + 1)1+1+1 Ï 893 := 1 + (1 + (11 × (11 − 1 − 1)1+1 )) := 2 × 2 × 222 := 2/2 + (2 × (2 × 222 + 2)) := 3 + ((33 × 33 ) − 33/3) := (33 × 3 ) − 3 := 3 + ((33 × 33 ) − 3/3) := 4 + (44 × (4 × 4 + 4) − 4/4) := (4 + 4) × 444/4 := 4 + (((4 + 4) × 444 + 4)/4) 3 := 5 + ((55 × (55/5 + 5)) − ((5 + 5)/5)) := 5 × 55 + ((5 − (55 + 5))/5) := 5 × 55 + ((55 − 5 − 5)/5 − 5) := 6/6 + (666 + 6 × 6 × 6) := 6 + (666 + 6 × 6 × 6) := 666 + (6 × 6 × 6 + 66/6) := 7/7 + 7 × (77 + 7 × 7) := 777 + 777/7 := 77/7 + 7 × (77 + 7 × 7) := 888 + (88/8 − (8 + 8)) := 888 := 8 + (888 − 88/8 + 8) := 9/9 + (9 × 99 − 9) := 9 × 99 − (9 + 9 + 9)/9 := (9 + 9)/9 + 9 × 99 Ï 884 := (1 + 1) × (1 + ((11 + (11 − 1))1+1 )) 5 Ï 889 := 1 + (111 × (1 + 1)1+1+1 ) Ï 894 := 1 + (1 + (1 + (11 × (11 − 1 − 1)1+1 ))) := 2 × (2 × 222 − 2) := 2/2 + (2 × 2 × 222) := 2 + (2 × (2 × 222 + 2)) := (33 − 3/3) × (3/3 + 33) := 3/3 + ((33 × 33 ) − 3) := 3 + (33 × 33 ) := 4 + 44 × (4 × 4 + 4) := ((4 + 4) × 444 + 4)/4 := 4 + ((4 + 4)/4 × (444 + 4/4)) := 5 + ((55 × (55/5 + 5)) − 5/5) := 5 × 55 + ((55 − 55)/5) := 5 × 55 + ((55 − 5)/5 − 5) := 666 + (6 × 6 × 6 + (6 + 6)/6) := 6 + ((666 + 6 × 6 × 6) + 6/6) := (6 × ((6 + 6) × (6 + 6) + 6)) − 6 := ((7 + 7)/7) + 7 × (77 + 7 × 7) := 7 + 7 × (77 + 7 × 7) := (7 × ((7 + 7)/7)7 ) − (7 + 7)/7 := 888 − (8/((8 + 8)/8)) := 8/8 + 888 := 8 + (888 − ((8 + 8)/8)) := (9 + 9)/9 + (9 × 99 − 9) := 9 × 99 − (9 + 9)/9 := 9 × 99 + ((9 + 9 + 9)/9) Ï 890 := (11 × (11 − 1 − 1)1+1 ) − 1 Ï 895 := ((1 + 111) × (1 + 1)1+1+1 ) − 1 Ï 885 := 1 + ((1 + 1) × (1 + ((11 + (11 − 1))1+1 ))) := 2 + (((((2 × 22) − 2)2 ) + 2)/2) := (2 × (2 × (222 + 2))) − 2/2 := 2 + (2 × 2 × 222) := (33 × 33 ) − (3 + 3) := (33 × 3 ) − 3/3 := 3 + ((33 × 33 ) + 3/3) := 4 + ((4/4 + 4)4 + 44 ) := (4 + 4)/4 × (444 + 4/4) := 4 + (44/4 × (4 − 4/4)4 ) := 5 + (55 × (55/5 + 5)) := 5 + ((55 × (55/5 + 5)) + 5) := 55 /5 + (5 × 55 − 5) := (6 − 6/6) × (666/6 + 66) := 6 + ((666 + 6 × 6 × 6) + ((6 + 6)/6)) := (6666/6) − 6 × 6 × 6 := (7 × ((7 + 7)/7)7 ) − 77/7 := 7 + (7 × (77 + 7 × 7) + 7/7) := (7 × ((7 + 7)/7)7 ) − 7/7 := 8 + (888 − 88/8) := 9 × 99 + (((9 + 9 + 9)/9) − 9) Ï 886 := (1 + 1) × (((1 + 1) × (1 + 1) × 111) − 1) := (2 × 2 × 222) − 2 := 3/3 + ((33 × 33 ) − (3 + 3)) 3 := 888 + (8 + 8)/8 := 8 + (888 − 8/8) := 9 × 99 − 9/9 := 9 × 99 + ((9 × 9 − 9)/(9 + 9)) Ï 891 := 11 × (11 − 1 − 1)1+1 := 2 + ((2 × 2 × 222) + 2/2) := 33 × 3 Ï 896 := (1 + 111) × (1 + 1)1+1+1 := 2 × (2 × (222 + 2)) := 3 + (((33 × 33 ) − 3/3) + 3) 3 := 44/4 × (4 − 4/4)4 := 4 × (44 − 4 × (4 + 4)) := 5 + ((55 × (55/5 + 5)) + 5/5) := 5 × 55 + ((55 + 5)/5 − (5 + 5)) := 5 × 55 + ((55 + 5)/5 − 5) := 6 + ((666 − ((6 + 6)/6)) + 6 × 6 × 6) := 6 + ((6 − 6/6) × (666/6 + 66)) := (6/6 + 6) × (((6 + 6)/6)6/6+6) := 77/7 + (777 + 7 × (7 + 7)) := 7 + (7 × (77 + 7 × 7) + ((7 + 7)/7)) := 7 × ((7 + 7)/7)7 := 888 − (8 + 8)/8 := 888 + (88/8 − 8) := 8 + 888 := 9 × 99 + ((9 − 99)/(9 + 9)) := 9 × 99 := 9 × 99 + ((9 × 9 + 9)/(9 + 9)) := (4 + 4)/4 × (444 − 4/4) Ï 887 := (111 × (1 + 1)1+1+1 ) − 1 := (2 × 2 × 222) − 2/2 Ï 892 := 1 + (11 × (11 − 1 − 1)1+1 ) := 2 × (2 × 222 + 2) Ï 897 := 1 + ((1 + 111) × (1 + 1)1+1+1 ) := 2/2 + (2 × (2 × (222 + 2))) 3 := (33 × 33 ) − (3/3 + 3) := 3/3 + (33 × 3 ) := 3 + ((33 × 33 ) + 3) := ((4 + 4) × 444 − 4)/4 := 4 + (444 + 444) := 4 × 4 + ((4/4 + 4)4 + 44 ) 5 := 5 + ((55 × (55/5 + 5)) + ((5 + 5)/5)) := 5 × 5 + ((5 − 5)/(5 + 5) + 555) := 5 × 55 + ((55 + 5 + 5)/5 − 5) := 6 + ((6 × 6 × 6 − 6/6) + 666) := 6 × 6 + (66 × (6 + 6) + ((6 + 6)/6)6 ) := 666/6 + (66 × (6 + 6) − 6) 7 := 7/7 + (7 × ((7 + 7)/7)7 ) := 777 + (777 − 7)/7 := 7 + ((7 × ((7 + 7)/7) ) − (77/7)) := 888 − 8/8 := 888 + (8/((8 + 8)/8)) := 8 + (888 + 8/8) := 9 × 99 + ((9 − 9 × 9)/(9 + 9)) := 9/9 + 9 × 99 := 9 + (9 × 99 − ((9 + 9 + 9)/9)) 69 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 898 := (((11 − 1) × (1 + 1 + 1))1+1 ) − 1 − 1 Ï 903 := (1 + 1)11−1 − 111+1 Ï 908 := ((11 − 1 − 1) × (1 + (11 − 1)1+1 )) − 1 := 2 + (((2 × (2 + 2) + 22)2 ) + 2/2) := 2 × ((2 × ((222 + 2) + 2)) + 2) := 3 + (((33 × 3 ) + 3/3) + 3) := 3 + ((33 × 33 ) + 3 × 3) := 3 + (((33 × 33 ) + 33/3) + 3) := (4 + 4)/4 + (4 × (44 − 4 × (4 + 4))) := 4 + (((4 + 4) × 444 + 44)/4) := 44 + (4 × (44 − 44 + 4)) := 5 × 55 + (55 − 5 − 5)/5 := 5 + ((55 − 5 − 5)/5 + 5 × 55) := (5 − 5/5)5 − (555/5 + 5) := 666/6 + 66 × (6 + 6) := 6 + ((6 × ((6 + 6) × (6 + 6) + 6)) + ((6 + 6)/6)) := 2 + (2 × (2 × (222 + 2))) 3 := (6 × ((6 + 6) × (6 + 6) + 6)) − (6 + 6)/6 7 7 := ((7 + 7)/7) + (7 × ((7 + 7)/7) ) := 7 + (7 × ((7 + 7)/7) ) := (77 + 7)/7 + (7 × ((7 + 7)/7)7 ) := 8 + (888 + ((8 + 8)/8)) := 8 + (888 − 8/8 + 8) := 8 + (((88 + 8)/8) + 888) := 9 + (9 × 99 − ((9 + 9)/9)) := 9 × 99 + (99 + 9)/9 := 9 + ((9 × 99 − 9/9) + 9) Ï 899 := (((11 − 1) × (1 + 1 + 1))1+1 ) − 1 Ï 904 := 1 + ((1 + 1)11−1 − 111+1 ) Ï 909 := (11 − 1 − 1) × (1 + (11 − 1)1+1 ) := 22/2 + (2 × 2 × 222) 3 := 3 × 3 + ((33 × 3 ) − 3/3) := 2 × (2 × ((222 + 2) + 2)) 3 := 3 + (((33 × 3 ) + 3 × 3) + 3/3) := 22 + ((2 × 2 × 222) − 2/2) := 3 × ((3 × 3 × 33 + 3) + 3) := ((4 + 4) × 444 + 44)/4 := 4 + ((4 × (4 − 4 × (4 + 4))) + 4) := 4 × 44 − (444/4 + 4) := 5 × 55 + (55 − 5)/5 := 5 + ((55 − 5)/5 + 5 × 55) := 5 + (((55 − 5)/5 + 5 × 55) + 5) := (6 × ((6 + 6) × (6 + 6) + 6)) − 6/6 := 66 × (6 + 6) + (666 + 6)/6 := 6 + (666/6 + 66 × (6 + 6)) 4 := 777 + (777 + 77)/7 := 7 + ((7 × ((7 + 7)/7) ) + 7/7) := 7 + (((7 × ((7 + 7)/7)7 ) − 7/7) + 7) := 888 + 88/8 := 8 + (888 + 8) := 8 + ((88 + 8 + 8)/8 + 888) := 9 + (9 × 99 − 9/9) := 9 × 99 + ((99 + 9 + 9)/9) := 9 + (9 × 99 + 9) Ï 900 := ((11 − 1) × (1 + 1 + 1))1+1 Ï 905 := 1 + (1 + ((1 + 1)11−1 − 111+1 )) 7 Ï 910 := 1 + ((11 − 1 − 1) × (1 + (11 − 1)1+1 )) := (2 × (2 + 2) + 22)2 := 22 + (((((2 × 22) − 2)2 ) + 2)/2) := 22 + (2 × 2 × 222) := 3 × (3 × 3 × 33 + 3) := 3 + ((33 × 33 ) + 33/3) := 3/3 + ((33 × 33 ) + (3 × (3 + 3))) := 4 + (4 × (44 − 4 × (4 + 4))) := 4 × 4 + (((4 + 4) × 444 + 4)/4) := 4 × 44 + (((4 − 444)/4) − 4) := 5 × (5 × 5 × 5 + 55) := 5 + (55 /5 + 5 × 55) := 5 + ((55 /5 + 5 × 55) + 5) := 6 × ((6 + 6) × (6 + 6) + 6) := 6 + ((6 × ((6 + 6) × (6 + 6) + 6)) − 6/6) := (6/6 + 6) × (((6 + 6)/6)6 + 66) := (77/7 + 7) × (7/7 + 7 × 7) := 777 + ((7 + 7)/7)7 := 7 + ((7 × ((7 + 7)/7)7 ) + 7) := 888 + (88 + 8)/8 := 8 + (888 + 8/8 + 8) := 888 + (88 + 88)/8 := 9 + 9 × 99 := 9 + (((9 × 9 + 9)/(9 + 9)) + 9 × 99) := 9 + ((9 × 99 + 9/9) + 9) Ï 901 := 1 + (((11 − 1) × (1 + 1 + 1))1+1 ) Ï 906 := 1 + (1 + (1 + ((1 + 1)11−1 − 111+1 ))) Ï 911 := 11 + (((11 − 1) × (1 + 1 + 1))1+1 ) := 2 + (2 × (2 × ((222 + 2) + 2))) := 22 + ((2 × 2 × 222) + 2/2) := 3 × 3 + ((33 × 3 ) + 3/3) 3 := 3 + (((33 × 3 ) + 3 × 3) + 3) := 3 × 3 + ((33 × 33 ) + 33/3) := 4 + ((4 × (44 − 4 × (4 + 4))) + 4/4) := 4 + (4 × 44 − ((444 + 44)/4)) := 4 × 44 − ((444 + 4 + 4)/4) := 5 × 55 + (55 + 5)/5 := 5 + ((55 + 5)/5 + 5 × 55) := 5 × 55 + ((55 + 55 )/5) := 6 + (6 × ((6 + 6) × (6 + 6) + 6)) := 66/6 + (6 × ((6 + 6) × (6 + 6) + 6)) := 2/2 + ((2 × (2 + 2) + 22)2 ) 3 := 6/6 + (6 × ((6 + 6) × (6 + 6) + 6)) 7 := 7 + ((7 × ((7 + 7)/7) ) − ((7 + 7)/7)) := 7/7 + (((7 + 7)/7) + 777) := 7 + (((7 × ((7 + 7)/7)7 ) + 7/7) + 7) := 888 + (88 + 8 + 8)/8 := 8 + ((888 + ((8 + 8)/8)) + 8) := 8 + ((888 − 8/8 + 8) + 8) := 9 + (9 × 99 + 9/9) := 9 + ((9 × 99 − ((9 + 9 + 9)/9)) + 9) := 9 + ((99/9) + 9 × 99) Ï 902 := 11 × (1 + (11 − 1 − 1)1+1 ) := 2 + ((2 × (2 + 2) + 22)2 ) 3 7 Ï 907 := 11 + ((1 + 111) × (1 + 1)1+1+1 ) := 22/2 + (2 × (2 × (222 + 2))) Ï 912 := (1 + 1)11−1 − (1 + 111) := 2 + ((2 × 2 × 222) + 22) := 33/3 + (33 × 3 ) := 3 + ((33 × 3 ) − 33/3) := 3 + ((33 × 33 ) + (3 × (3 + 3))) := 4 × 44 − ((444 + 44)/4) := 4 × 4 + (44/4 × (4 − 4/4)4 ) := 4 × ((44 − 4 × (4 + 4)) + 4) := 5 × 55 + (55 + 5 + 5)/5 := 5 + ((55 + 5 + 5)/5 + 5 × 55) := 5 × 55 + ((55 + 55 + 5)/5) := (6 + 6)/6 + (6 × ((6 + 6) × (6 + 6) + 6)) := 6 + ((6 × ((6 + 6) × (6 + 6) + 6)) + 6/6) := 6 + ((6 × ((6 + 6) × (6 + 6) + 6)) + 6) 3 7 3 7 := 7 + (((7 + 7)/7)7 + 777) := 7 + ((7 × ((7 + 7)/7) ) − 7/7) := 77/7 + (7 × ((7 + 7)/7) ) := 8 + ((888 − ((8 + 8)/8)) + 8) := 8 + (888 + 88/8) := 8 + (888 + 8 + 8) := 99/9 + 9 × 99 := 9 + ((9 × 99 − ((9 + 9)/9)) + 9) := 9 + (((99 + 9)/9) + 9 × 99) 70 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 913 := (1 + 1)11−1 − 111 Ï 918 := (11 − 1 − 1) × (1 + (1 + (11 − 1)1+1 )) := (222/2 − 222)/2 := 22 + (2 × (2 × (222 + 2))) := 33 + ((33 × 33 ) − 33/3) := 3 × (3 × (3 × 33 + 3)) := (2 × (222 − 22)) − 2/2 := 33 + ((33 × 33 ) − 3/3) 4 := 4 + (((4 − 444)/4) + 4 × 4 ) := 4 × 44 − 444/4 Ï 923 := 11 + ((1 + 1)11−1 − (1 + 111)) 5 := 44 + (44 × (4 × 4 + 4) − 4/4) := (5 − 5/5)5 − 555/5 := 5 + ((5 − 5/5) − 555/5) := (5 × (55 + 5)) + (55 − 5 − 5)/5 := (66/6) × (66/6 + 66 + 6) := 666 + 6 × (6 × 6 + 6) := (6/6 + 6 + 6) × ((66 − 6/6) + 6) := 77/7 × (77 − 7/7 + 7) := ((77 × (77 + 7) + 7)/7) − 7 := (77 × (77 + 7) − 7)/7 := 8 + ((888 + 8/8 + 8) + 8) := 8 + ((88 + 88)/8 + 888) := 8 + (((888 + 88/8) + 8) + 8) := 9 × 99 + ((99 + 99)/9) := 999 − 9 × 9 := 9 + (((99 + 99 + 9)/9) + 9 × 99) Ï 914 := 1 + ((1 + 1)11−1 − 111) Ï 919 := 1 + ((11 − 1 − 1) × (1 + (1 + (11 − 1)1+1 ))) Ï 924 := 11 + ((1 + 1)11−1 − 111) := 22 + (2 × (2 × 222 + 2)) := (2 × (222 − (22 + 2))) − 2/2 := 2 × (222 − 22) := 33 + ((33 × 33 ) − (3/3 + 3)) := 33 + ((33 × 33 ) + 3/3) := 33 + (33 × 33 ) := 4 × 44 + ((4 − 444)/4) := 4444/4 − (4 × (44 + 4)) := 44 + 44 × (4 × 4 + 4) 5 := (5 − 5/5) − (55 + 55) := 5 + ((5 − 5/5) − (55 + 55)) := (5 × (5 − 5 × 5)) + (5 − 5/5)5 := 66 × (6 + 6) + ((666 + 66)/6) := 6/6 + (6 × (6 × 6 + 6) + 666) := 66 × ((6 + 6)/6 + 6 + 6) := 7 + ((7 × ((7 + 7)/7) ) + (77/7)) := 7 + ((((7 + 7)/7)7 + 777) + 7) := 77 × (77 + 7)/7 := 8 + (((888 + ((8 + 8)/8)) + 8) + 8) := 8 + (((888 − 8/8 + 8) + 8) + 8) := 888 + ((8 × 8 + 8)/((8 + 8)/8)) := 9 × 99 + ((99 + 99 + 9)/9) := 9/9 + (999 − 9 × 9) := 9 × 99 + (99/((9 + 9 + 9)/9)) 5 7 Ï 915 := 1 + (1 + ((1 + 1)11−1 − 111)) Ï 920 := (11 − 1) × (11 + (11 − 1 − 1)1+1 ) Ï 925 := (11111 − 11)/(1 + 11) := 2 + (222/2 − 222)/2 := 2 × (222 − (22 + 2)) := 2/2 + (2 × (222 − 22)) := 33 + ((33 × 33 ) − 3) := 3 + (((33 × 33 ) − 3/3) + 33 ) := 3/3 + ((33 × 33 ) + 33) := 4 × 44 + (((4 − 444) + 4)/4) := (4 + 4) × (444/4 + 4) := 44 + ((4/4 + 4)4 + 44 ) 5 := (5 + 5 + 5) × ((55 + 5/5) + 5) := 5 /5 + ((5 × (55 + 5)) − 5) := 5 × ((5 × 5 × 5 + 55) + 5) := 6 + ((666/6 + 66 × (6 + 6)) + 6) := 666 + (6 × (6 × 6 + 6) + ((6 + 6)/6)) := 6/6 + (66 × ((6 + 6)/6 + 6 + 6)) := 7777/7 − (7 + 7) × (7 + 7) := 7 + (77/7 × (77 − 7/7 + 7)) := (77 × (77 + 7) + 7)/7 := 8 + ((888 + 88/8) + 8) := 8 + ((888 + 8 + 8) + 8) := 888 + 888/(8 + 8 + 8) := 999 − (((9 + 9 + 9)/9) + 9 × 9) := 9 + (((99/9) + 9 × 99) + 9) := (((9 + 9)/9)9/9+9 ) − 99 Ï 916 := 1 + (1 + (1 + ((1 + 1)11−1 − 111))) Ï 921 := 1 + ((11 − 1) × (11 + (11 − 1 − 1)1+1 )) 2 Ï 926 := (1 + 11111)/(1 + 11) := 2 × (22 − (22 + 2 + 2)) := 2/2 + (2 × (22 − (22 + 2))) := 2 + (2 × (222 − 22)) := 33 + (((33 × 33 ) − 3) + 3/3) := 3 + ((33 × 33 ) + 33 ) := 3 + (((33 × 33 ) − 3/3) + 33) := (4 × (44 − 4 × 4)) − 44 := 4 + ((4 × 44 − 444/4) + 4) := 44 + (((4/4 + 4)4 + 44 ) + 4/4) := 5 + (((55 + 55 )/5) + 5 × 55) := (5 × (55 + 5)) + ((55 + 5)/5 − 5) := (5 × (55 + 5)) + (55 + 5)/5 := 6 + ((6/6 + 6) × (((6 + 6)/6)6 + 66)) := 6 + (((666/6 + 66 × (6 + 6)) + 6) + 6) := (6 + 6)/6 + (66 × ((6 + 6)/6 + 6 + 6)) := ((77 × (77 + 7) − 7)/7) − 7 := (77 × (77 + 7) − (7 + 7 + 7))/7 := ((77 × (77 + 7) + 7) + 7)/7 := 8 + ((((88 + 8)/8) + 888) + 8) := 8 + (((888 + 8/8 + 8) + 8) + 8) := 8 + (((88 + 88)/8 + 888) + 8) := 999 − (((9 + 9)/9) + 9 × 9) := 9 × (9 × 9 + 9) + 999/9 := 9 + (999 − (9/9 + 9 × 9)) 2 Ï 917 := 1 + (1 + (1 + (1 + ((1 + 1)11−1 − 111)))) Ï 922 := 11 + (11 + (((11 − 1) × (1 + 1 + 1))1+1 )) 2 Ï 927 := 1 + ((1 + 11111)/(1 + 11)) := (2 × (22 − 22)) − 2 := 2 + ((2 × (222 − 22)) + 2/2) := 33 + ((33 × 33 ) − 3/3) := 3 + (((33 × 33 ) + 33 ) + 3/3) := 3 + ((33 × 33 ) + 33) := 4 + (4 × 44 − 444/4) := 4 + ((((4 − 444)/4) + 4 × 44 ) + 4) := (4 × (44 − 4)) − (4 − 4/4)4 := 5 + (((55 + 55 + 5)/5) + 5 × 55) := 55 + ((55 − 5)/(5 + 5) + 555) := (5 × (55 + 5)) + (55 + 5 + 5)/5 := 666 + (6 × (6 × 6 + 6) − 6/6) := 66 + (66 × (6 + 6) + ((6 + 6)/6)6 ) := 66 + ((((6 × 6/(6 + 6))6 ) + 66) + 66) := (77 × (77 + 7)/7) − 7 := (77 × (77 + 7) − (7 + 7))/7 := (((77 × (77 + 7) + 7) + 7) + 7)/7 := 2 + 2 + (2 22/2 − 222)/2 := 8 + (((88 + 8 + 8)/8 + 888) + 8) := 8 + ((((888 + ((8 + 8)/8)) + 8) + 8) + 8) := (8/8 + 8) × (888/8 − 8) := 999 − (9/9 + 9 × 9) := 9 + (((99 + 99)/9) + 9 × 99) := 9 + (999 − 9 × 9) 71 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 928 := 1 + (1 + ((1 + 11111)/(1 + 11))) := 2 × ((222 − 22) + 2) := 3 + (((33 × 33 ) + 33) + 3/3) Ï 933 := 1 + ((1 + 1) × ((1 + 1) × (11 + (1 + 1) × 111))) := 2/2 + (2 × (2 × 222 + 22)) 3 := 3 × 3 + ((33 × 3 ) + 33) 4 Ï 938 := 1 + (((1 + 1)11 ) − 1111) := 2 + (2 × (222 − 22+2 )) := 3 + ((3 × 333) − ((3/3 + 3)3 )) := 4 × (44 − ((4 × 4 + 4) + 4)) := 4 + ((4 × (4 + 4)) − 444/4) := 4 + ((4444 − 4)/4 − (4 × 44)) := ((5 + 5)/5)5 × (5 × 5 − 5/5 + 5) := 55 /5 + ((55 + 5)/(5 + 5) − 5) := 55 /5 + (55 + 5)/(5 + 5) := ((6 + 6)/6)6 + (6 × (6 + 6) × (6 + 6)) := 6 × 6 × 6 + (((6 × 6/(6 + 6))6 ) − (6 + 6)) := (6 + 6)/6 + ((6 + 6) × (66 + 6 + 6)) := (77/7 × (7/7 + 77 + 7)) − 7 := 7 + (((77 × (77 + 7) + 7) + 7)/7) := 7 + (7 × (77 + 7 × 7 + 7)) := 8 × 8 × (8 + 8) − (88 + 8) := 8 × 8 + (888 − (88/8 + 8)) := (8 + 8)/8 + (8 × 8 × (8 + 8) − 88) := 9 + ((999 − 9 × 9) + 9/9) := 9 + ((99/((9 + 9 + 9)/9)) + 9 × 99) := 9 + (((99/9) − 9 × 9) + 999) Ï 929 := ((11 × ((1 + (1 + 11))1+1 )) − 1)/(1 + 1) Ï 934 := ((1 + 1)11 ) − (1 + (1 + (1 + 1111))) Ï 939 := 1 + (1 + (((1 + 1)11 ) − 1111)) := 2/2 + (2 × 222 + 222 ) := 2 + (2 × (2 × 222 + 22)) := (((2/2 + 2)2 + 22)2 ) − 22 := 33 + ((33 × 33 ) + 33/3) := 33+3 + ((3 + 3)3 − 33/3) := (33 × (33 + 3)) − 33 := (4 × (44 + 4)) − 444/4 := (4444 − 4)/4 − (4 × 44) := 4 × 44 − ((4 − 4/4)4 + 4) := 5 + ((5 × (5 − 5 × 5)) + (5 − 5/5)5 ) := (55 × (((55 + 5)/5) + 5)) − 5/5 := (55 + 5)/5 + (55 + 5)/(5 + 5) := ((6 + 6) × (66 + 6 + 6)) − (6 + 6)/6 := 6 × 6 × 6 + (((6 × 6/(6 + 6))6 ) − 6) := 7 + ((77 × (77 + 7) − (7 + 7))/7) := (7 × (((7 + 7)/7)7 + 7)) − 77/7 := 7 + (((77 × (77 + 7) + 7)/7) + 7) := 8/8 + (8 × 8 × (8 + 8) − (88 + 8)) := 8 × 8 × (8 + 8) − ((8 + 8)/8 + 88) := 8 × 8 + 888 − (88 + 8 + 8)/8 := 99/9 + (999 − 9 × 9) := 9 + ((((9 + 9)/9)9/9+9 ) − 99) := 99 + (999/9 + 9 × 9 × 9) := 66 + ((6 × (6 + 6) × (6 + 6)) − 6/6) Ï 930 := (11 − 1) × (((1 + 1)11−1 − 1)/11) Ï 935 := ((1 + 1)11 ) − (1 + (1 + 1111)) Ï 940 := 1 + (1 + (1 + (((1 + 1)11 ) − 1111))) := 2 + (2 × 222 + 222 ) := 22/2 + (2 × (222 − 22)) := 2 × ((222 − 22+2 ) + 2) := 3 + (((33 × 33 ) + 33) + 3) := (3 × 333) − ((3/3 + 3)3 ) := 3/3 + ((33 × (33 + 3)) − 33) := (4 × (44 + 4)) + ((4 − 444)/4) := 44/4 × ((4 − 4/4)4 + 4) := (4 × (44 − (4 × 4 + 4))) − 4 := 5 + ((5 × (55 + 5)) + 55 /5) := 55 × (((55 + 5)/5) + 5) := 5 + (55 × (((55 + 5)/5) + 5)) := 66 + (6 × (6 + 6) × (6 + 6)) := ((6 + 6) × (66 + 6 + 6)) − 6/6 := 6 + (((6 + 6) × (66 + 6 + 6)) − ((6 + 6)/6)) := 7 + ((77 × (77 + 7) − 7)/7) := 77/7 × (7/7 + 77 + 7) := 7 + ((((77 × (77 + 7) + 7) + 7)/7) + 7) := (8 − 8/8 + 8) × (8 × 8 − ((8 + 8)/8)) := 8 × 8 × (8 + 8) − (8/8 + 88) := 8 + ((88/((8 + 8)/8)) + 888) := 9 + (9 × (9 × 9 + 9) + 999/9) := 9 + ((999 − (9/9 + 9 × 9)) + 9) := 9 × 99 + ((9 × 99 − 9)/(9 + 9)) Ï 941 := 1111 − (1 + ((1 + (1 + 11))1+1 )) Ï 931 := (1 + ((11 − 1) × (1 + 1)11−1 ))/11 Ï 936 := ((1 + 1)11 ) − (1 + 1111) := (2 × (2 × 222 + 22)) − 2/2 := 2 × (222 − 22+2 ) := (2 × (222 − 2)) − (22 + 2/2) := 3 + ((((33 × 33 ) + 33) + 3/3) + 3) := (3 × 3 + 3) × (3 × 33 − 3) := 33+3 + ((3 + 3)3 − (3/3 + 3)) := 4 + ((4 × (44 − 4)) − (4 − 4/4)4 ) := 4 × 44 − (44 + 44) := 4/4 + ((4 × (44 − (4 × 4 + 4))) − 4) := 5 + ((5 × (55 + 5)) + (55 + 5)/5) := 5/5 + (55 × (((55 + 5)/5) + 5)) := 5 + ((55 × (((55 + 5)/5) + 5)) + 5/5) := 66 + ((6 × (6 + 6) × (6 + 6)) + 6/6) := (6 + 6) × (66 + 6 + 6) := 6 + (((6 + 6) × (66 + 6 + 6)) − 6/6) := 7 × (77 + 7 × 7 + 7) := (77 + 7)/7 × (7/7 + 77) := 7 + ((7 × (((7 + 7)/7)7 + 7)) − (77/7)) := 8 + ((((888 + 88/8) + 8) + 8) + 8) := 8 × 8 × (8 + 8) − 88 := 8 × 8 + (888 − 88/8) := 9 × 99 + ((9 × 9 × 9 − 9)/(9 + 9)) := 9 + ((999 − 9 × 9) + 9) := 9 × 99 + ((9 × 99 + 9)/(9 + 9)) Ï 932 := (1 + 1) × ((1 + 1) × (11 + (1 + 1) × 111)) Ï 937 := ((1 + 1)11 ) − 1111 Ï 942 := 1111 − ((1 + (1 + 11))1+1 ) := 2 × (2 × 222 + 22) := 2/2 + (2 × (222 − 22+2 )) := (2 × (222 − 2)) − 22 := (3 × 333) − (((3/3 + 3)3 ) + 3) := 3/3 + ((3 × 3 + 3) × (3 × 33 − 3)) := 33+3 + ((3 + 3)3 − 3) := 4 + (4 × (44 − ((4 × 4 + 4) + 4))) := 4/4 + (4 × 44 − (44 + 44)) := 4 × 44 − ((4 − 4/4)4 + 4/4) := 55 /5 + (55 − 55)/(5 + 5) := 55 /5 + (55 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 55 /5) := 66 + ((6 × (6 + 6) × (6 + 6)) + ((6 + 6)/6)) := 6/6 + ((6 + 6) × (66 + 6 + 6)) := 6 + ((6 + 6) × (66 + 6 + 6)) := 7 + ((77 × (77 + 7) + 7)/7) := 7 + (((77 × (77 + 7) − 7)/7) + 7) := 7 + (77/7 × (7/7 + 77 + 7)) := 888 + (88/((8 + 8)/8)) := 8/8 + (8 × 8 × (8 + 8) − 88) := 8 × 8 + ((8 − 88)/8 + 888) := 9 × 99 + ((9 × 9 × 9 + 9)/(9 + 9)) := 9 + (((999 − 9 × 9) + 9/9) + 9) := (9 × (99 + 9 + 9)) − 999/9 72 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 943 := 1 + (1111 − ((1 + (1 + 11))1+1 )) Ï 948 := 11 + (((1 + 1)11 ) − 1111) Ï 953 := 1 + ((1 + 1)1+1+1 × (111+1 − (1 + 1))) := 2/2 + ((2 × (222 − 2)) − 22) := 2 + ((2 × 222 ) − 22) := (2 × (222 − 2)) − 22/2 := 3/3 + (((3 + 3)3 − 3) + 33+3 ) := 3 + (33+3 + (3 + 3)3 ) := ((3 + 3) × ((3 + 3) × 33 − 3)) − 3/3 := 4 × 44 − (4 − 4/4)4 := 4 + (4 × (44 − (4 × 4 + 4))) := 4 + (4 × 44 − ((44 + 44 )/4)) := 5 + ((55 + 5)/(5 + 5) + 55 /5) := 5 + (((55 + 5)/(5 + 5) + 55 /5) + 5) := 55 + ((55 − 5 − 5)/5 + 5 × 55) := 6 + (((6 + 6) × (66 + 6 + 6)) + 6/6) := 6 + (((6 + 6) × (66 + 6 + 6)) + 6) := 6 + (((6 + 6) × (66 + 6 + 6)) + (66/6)) := 7 + ((77 + 7)/7 × (7/7 + 77)) := (77 + 7)/7 × ((7 + 7)/7 + 77) := 7 + ((7 × (((7 + 7)/7)7 + 7)) + 7/7) := 8 × 8 + (888 − (8/8 + 8)) := 8 × 8 + (888 − (8/((8 + 8)/8))) := 8/8 + (888 + 8 × 8) := ((99 + 9)/9) × (9 × 9 − ((9 + 9)/9)) := (9 × (99 + 9)) − (9/9 + 9 + 9) 9/9+9 := (((9 + 9)/9) )−9×9 Ï 944 := (1 + 1) × (((11 + 11)1+1 ) − (1 + 11)) Ï 949 := 1 + (11 + (((1 + 1)11 ) − 1111)) Ï 954 := (11 − 1 − 1) × (111 − (1 + (1 + (1 + 1 + 1)))) := (2 × 22 ) − (22 + 2) := 2 + (((2 × 22 ) − 22) + 2/2) := 2 + (2 × (222 − 2 × (2 + 2))) := 33+3 + ((3 + 3)3 − 3/3) := 3 + ((33+3 + (3 + 3)3 ) + 3/3) := (3 + 3) × ((3 + 3) × 33 − 3) := 4 × (44 − (4 × 4 + 4)) := 4 × 44 − ((44 + 44 )/4) := 4 × 44 − ((((44 + 4) + 4)/4) + 4) := (5 − 5/5)5 − (5 × 5 + 55) := (5 − 5/5)5 − (5 × (5 + 5 + 5)) := 5 + ((5 − 5/5)5 − (5 × (5 + 5 + 5))) := 6 + (((6 + 6) × (66 + 6 + 6)) + ((6 + 6)/6)) := (6/6 + 6 + 6) × (66 + 6/6 + 6) := 666 + 6 × (6 × 6 + 6 + 6) := (7/7 + 7) × (777/7 + 7) := 7 + ((77/7 × (7/7 + 77 + 7)) + 7) := 7 × 7 + (((7 + 7)/7)7 + 777) := 8 × 8 + 888 − 8 := (8 × (8 × (8 + 8) − 8)) − 88/8 := 8 × 8 + (888 + ((8 + 8)/8)) := 999 + ((9 − 999)/(9 + 9)) := 9999/9 − 9 × (9 + 9) := (9 × (99 + 9)) − (9 + 9) 2 2 Ï 945 := ((1 + 1) × (((11 + 11)1+1 ) − 11)) − 1 2 Ï 950 := ((1 + ((11 − 1) × (1 + 1 + 1)))1+1 ) − 11 Ï 955 := 1111 − ((1 + 11) × (1 + (1 + 11))) := (2 × 22 ) − (22 + 2/2) := (2 × (22 + 2)) − 22 := (2 × 222 ) − (22/2 + 2) := 33+3 + (3 + 3)3 := 3 + (((33+3 − 3/3) + (3 + 3)3 ) + 3) := (33 × 33 ) + ((3/3 + 3)3 ) := 4/4 + (4 × (44 − (4 × 4 + 4))) := 4 + ((44 × ((4 × 44) − 4))/(4 + 4)) := 4 × 44 − ((44 + 4)/4 + 4) := (5 × (5 × (55 + 5))) − 555 := (5 + 5) × (5 × (5 × 5 − 5) − 5) := 5 + ((5 + 5) × (5 × (5 × 5 − 5) − 5)) := (6 × 6 − (66/6)) × (((6 + 6)/6) + 6 × 6) := (((6 × 6 − 6) + 6/6)(6+6)/6 ) − 6 2 6 := 6 × 6 × 6 + ((6 × 6/(6 + 6)) ) 7 := 7 × (((7 + 7)/7)7 + 7) := 77 × (7 + 7) − ((7 + 7)/7) := 7 + ((77 + 7)/7 × ((7 + 7)/7 + 77)) := 8/8 + ((888 − 8) + 8 × 8) := 8 × 8 + (888 − ((8 + 8)/8)) := 8 × 8 + (888 − 8 + 88/8) := (9 × (99 + 9)) − (9 + 9 + 9) := 999 + ((9 − 9 × 99)/(9 + 9)) := 9/9 + ((9 × (99 + 9)) − (9 + 9)) Ï 946 := (1 + 1) × (((11 + 11)1+1 ) − 11) Ï 951 := 1 + (((1 + ((11 − 1) × (1 + 1 + 1)))1+1 ) − 11) Ï 956 := 1111 − (11 + ((1 + 11)1+1 )) := (2 × 222 ) − 22 := 2/2 + ((2 × (222 + 2)) − 22) := 2 × (222 − (2 + 2 + 2)) := 3/3 + (33+3 + (3 + 3)3 ) := 3 + ((33+3 + (3 + 3)3 ) + 3) := 33+3 + ((3 + 3)3 + 33/3) := (44 × ((4 × 44) − 4))/(4 + 4) := 4 + ((4 × 44 − (4 − 4/4)4 ) + 4) := (4 × (44 − 4 × 4)) − 4 := 55/5 × (555/5 − 5 × 5) := 5/5 + ((5 + 5) × (5 × (5 × 5 − 5) − 5)) := 55 + ((55 + 5)/5 + 5 × 55) := 6/6 + (((6 × 6/(6 + 6))6 ) + 6 × 6 × 6) := 6 + (((6 × 6/(6 + 6))6 ) + 6 × 6 × 6) := 6 + ((6 × 6 − (66/6)) × (((6 + 6)/6) + 6 × 6)) := 7/7 + (7 × (((7 + 7)/7) + 7)) := 7 + ((7/7 + 7) × (777/7 + 7)) := 77/7 + (7 × (((7 + 7)/7)7 + 7)) := 88/8 × (88 − ((8 + 8)/8)) := 8 × 8 + (888 − 8/8) := (88 × 88 − (88 + 8))/8 := (9 × (99 + 9)) − (((99 + 9)/9) + 9) := (9 + 9)/9 + ((9 × (99 + 9)) − (9 + 9)) 7 9 := 9 × 9 × (9 + 9) − (((9 + 9)/9) ) Ï 947 := 1 + ((1 + 1) × (((11 + 11)1+1 ) − 11)) Ï 952 := (1 + 1)1+1+1 × (111+1 − (1 + 1)) Ï 957 := 11 × (111 − ((1 + 1) × (1 + 11))) := 2/2 + ((2 × 22 ) − 22) := 2 × (22 − 2 × (2 + 2)) := (2 × 222 ) − 22/2 := 3 + ((33+3 − 3/3) + (3 + 3)3 ) := (33 + 3/3) × (3/3 + 33) := 33 × ((33 − 3/3) + 3) := 4 + (4 × 44 − (4 − 4/4)4 ) := (4 × (44 − 4 × 4)) − 4 − 4 := 4/4 + ((4 × (44 − 4 × 4)) − 4) := 5 + (((55 − 5)/(5 + 5) + 55 /5) + 5) := (5 − 5/5) × (((5 − (5 + 5)/5)5 ) − 5) := 55/5 × (((5 + 5)/5)5 + 55) := 66/6 + ((6 + 6) × (66 + 6 + 6)) := 6 × 66 + (6666 + 6)/(6 + 6) := 6 + ((((6 × 6/(6 + 6))6 ) + 6 × 6 × 6) + 6) := ((7 + 7)/7) + (7 × (((7 + 7)/7)7 + 7)) := 7 + (7 × (((7 + 7)/7)7 + 7)) := 7 + (77 × (7 + 7) − ((7 + 7)/7)7 ) := 88/8 + (8 × 8 × (8 + 8) − 88) := 8 × 8 + 888 := 88/8 × (88 − 8/8) := 9 × 99 + ((999 + 9)/(9 + 9)) := (9 × (99 + 9)) − (99/9 + 9) := 99/9 × (99 − ((99 + 9)/9)) 2 2 73 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 958 := 1 + (11 × (111 − ((1 + 1) × (1 + 11)))) Ï 963 := 1 + (1 + ((1 + ((11 − 1) × (1 + 1 + 1)))1+1 )) Ï 968 := (1 + 1) × ((11 + 11)1+1 ) := (2 × (222 − (2 + 2))) − 2 := (2 × (222 − 2)) − 2/2 := 2 × 222 := 3 + ((33 × 33 ) + ((3/3 + 3)3 )) := 3 × (333 − (3 × 3 + 3)) := (3/3 + 3) × ((33+3 − 3)/3) 4 4 := 4 × 44 − (((44 + 4) + 4)/4) := 4 + (4 × 4 − (4 + 4)/4) := 4 + ((4 × (44 − 4 × 4)) + 4) := (5 − 5/5)5 − (55/5 + 55) := (5 − 5/5)5 − ((55 + 5/5) + 5) := (5 − 5/5)5 − (55 + 5/5) := (((6 + 6)/6)(66−6)/6) − 66 := 6 × 6 × 6 × 6 − 666 × 6/(6 + 6) := (66/6) × (((66 + 66)/6) + 66) := (77 × 77 + 777)/7 := 7 + ((7 × (((7 + 7)/7)7 + 7)) + (77/7)) := (7/7 + 7) × (((7 + 7)/7)7 − 7) := (8 × (8 × (8 + 8) − 8)) − (8 + 8)/8 := 8 × 8 + (888 + 88/8) := 88 × (88/8) := 9 + (9999/9 − 9 × (9 + 9)) := (9 × (99 + 9)) − 9 := 99/9 × (99 − (99/9)) Ï 959 := ((1 + 1)11 ) − ((11 × (1 + 1 + 1))1+1 ) 2 Ï 964 := (1 + 1) × (((11 + 11)1+1 ) − (1 + 1)) 2 := 2 + ((2 × 22 ) − 22/2) := 2/2 + (2 × 222 ) := 2 × (22 − 2) 3 Ï 969 := 1 + ((1 + 1) × ((11 + 11)1+1 )) 3 := ((3 × 3 + 3/3) ) − (33 + 3) := (33 × (33 + 3)) − 3 4 := 4 × 4 − (4 + 4)/4 := 4 + (4 × (44 − 4 × 4)) := 4 × 44 − (44/4 + 44) := (5 − 5/5)5 − (55 + 5 + 5) := (5 − 5/5)5 − (55 + 5) := (5 − 5/5)5 − 55 := (6/6 + 6) × ((66 − 6/6 + 66) + 6) := 6 + ((((6 + 6)/6)(66−6)/6) − 66) := (6 × 6 × (6 × 6 − 6)) − 666/6 := 77 + 7 × (77 + 7 × 7) := 7777/7 − 7 × (7 + 7 + 7) := (7 + 7) × (77 − 7) − 77/7 := (8 × (8 × (8 + 8) − 8)) − 8/8 := 8 + ((88 × 88 − (88 + 8))/8) := (88 × 88 + 8)/8 := 999 + ((9 − 9 × 9 × 9)/(9 + 9)) := 9/9 + ((9 × (99 + 9)) − 9) := (9 × (99 + 9)) − (9 + 9 + 9)/9 := ((3 + 3) × (33 − 3/3)) − 3/3 4 Ï 960 := (1 + 11) × ((11 − 1 − 1)1+1 − 1) := 2 × (222 − (2 + 2)) := (33 + 3) × (33 − 3/3) := 4 × (44 − 4 × 4) Ï 965 := ((1 + 1) × (((11 + 11)1+1 ) − 1)) − 1 := 2/2 + (2 × (222 − 2)) := 2 + (2 × 222 ) := (3 × 333) − (3/3 + 33) := 3 + (((3 × 3 + 3/3)3 ) − 33) := 4 + ((4 × (44 − 4 × 4)) + 4/4) 5 Ï 970 := (1 + 1) × (1 + ((11 + 11)1+1 )) := (44 × 44 + 4)/((4 + 4)/4) := (5 × 5 + 5) × ((5 + 5)/5) := 5 + ((5 × 5 + 5) × ((5 + 5)/5) ) := 5/5 + ((5 − 5/5)5 − 55) 5 := (6 − 66) × (((6 − 66)/6) − 6) := 66 + ((6 × ((6 + 6) × (6 + 6) + 6)) − 6/6) := ((6 − 666)/6) + (6 × 6 × (6 × 6 − 6)) := 7/7 + (7 × (77 + 7 × 7) + 77) := 7 + ((77 × 77 + 777)/7) := ((7 − 77)/7) + (7 + 7) × (77 − 7) := 8 × (8 × (8 + 8) − 8) := 8 + (88/8 × (88 − 8/8)) := ((88 × 88 + 8) + 8)/8 := (9 − 9/9) × (999/9 + 9) := (9 + 9)/9 + ((9 × (99 + 9)) − 9) := (9 × (99 + 9)) − (9 + 9)/9 Ï 961 := (1 + ((11 − 1) × (1 + 1 + 1)))1+1 := ((2/2 + 2)2 + 22)2 := ((33 + 3/3) + 3)3−3/3 4 := 4/4 + (4 × (4 − 4 × 4)) Ï 966 := (1 + 1) × (((11 + 11)1+1 ) − 1) Ï 971 := 1 + ((1 + 1) × (1 + ((11 + 11)1+1 ))) := (2 × 222 ) − 2 := 2 + ((2 × 222 ) + 2/2) := (3 × 333) − 33 := (33 × (33 + 3)) − 3/3 := (44 × 44 − 4)/((4 + 4)/4) := 44/4 + (4 × (44 − 4 × 4)) (5+5)/5 := 5 + (((5 × 5 + 5/5) + 5)(5+5)/5 ) := ((5 − 5/5)5/5+5 ) − 55 (6+6)/6 := 66 + (6 × ((6 + 6) × (6 + 6) + 6)) := ((6 + 6 + 6) × (66 − (6 + 6))) − 6/6 := (7 + 7) × (77 − (7/7 + 7)) := (7 + 7) × (77 − 7) − ((7 + 7)/7 + 7) := 8/8 + (8 × (8 × (8 + 8) − 8)) := (88 × 88 − (8 + 8))/8 := 88/8 + (8 × (8 × (8 + 8) − 8)) := (9 × (99 + 9)) − 99/9 := 999 − (99/((9 + 9 + 9)/9)) := (9 × (99 + 9)) − 9/9 := ((5 × 5 + 5/5) + 5) := ((6 × 6 − 6) + 6/6) := (7 × 7 − (77/7 + 7)) (7+7)/7 Ï 962 := 1 + ((1 + ((11 − 1) × (1 + 1 + 1)))1+1 ) Ï 967 := 1111 − ((1 + 11)1+1 ) Ï 972 := (1 + 11) × (11 − 1 − 1)1+1 := (2 × (222 − 2)) − 2 := (2 × 222 ) − 2/2 := 2 × (222 + 2) := (33 × 33 ) + (((3 + 3)3 − 3)/3) := ((3 × 3 + 3/3)3 ) − 33 := 33 × (33 + 3) := (4 + 4)/4 + (4 × (44 − 4 × 4)) := ((44 × (44 + 44)) − 4)/4 := 4 × ((4 − 4/4)4+4/4 ) := (5 × 5 + 5/5) × (((5 + 5)/5)5 + 5) := (5 − 5/5)5 − ((5 + 5)/5 + 55) := (5 − 5/5) × ((5 − (5 + 5)/5)5 ) := 6/6 + (((6 × 6 − 6) + 6/6)(6+6)/6 ) := 6 + (((6 × 6 − 6) + 6/6)(6+6)/6 ) := (6 + 6 + 6) × (66 − (6 + 6)) := (7 + 7) × (77 − 7) − (77/7 + 7) := 77 × (7 + 7) − 777/7 := (7 + 7) × (77 − 7) − (7/7 + 7) := (8 + 8)/8 + (8 × (8 × (8 + 8) − 8)) := (88 × 88 − 8)/8 := 88 + (888 − (8/((8 + 8)/8))) := (9 × (99 + 9)) − 9/9 − 9 := (9 × (99 + 9)) + ((9 − 99)/(9 + 9)) := 9 × (99 + 9) 74 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 973 := 1 + ((1 + 11) × (11 − 1 − 1)1+1 ) Ï 978 := 1111 − (1 + 11 × (1 + 11)) Ï 983 := 1 + 1 + (11 − 1 − 1) × (111 − 1 − 1) 2 := 2/2 + (2 × (22 + 2)) := 2 + (2 × (22 + 2 + 2)) := 22/2 + (2 × (222 + 2)) := 3/3 + (33 × (33 + 3)) := 3 + ((33 × (33 + 3)) + 3) := 33/3 + (33 × (33 + 3)) := 4 + (4 × 44 − (44/4 + 44)) := 4 × 44 − ((4 + 4)/4 + 44) := 4 + 4 × 44 − (44 + 4/4) := 5 + ((5 − 5/5)5 − (55 + 5/5)) := 5 + (((5 − 5/5)5 − (55 + 5/5)) + 5) := (5 − 5/5)5 − ((55/5 + 5 × 5) + 5) 2 := 6/6 + ((6 + 6 + 6) × (66 − (6 + 6))) := 6 + ((6 + 6 + 6) × (66 − (6 + 6))) := 66/6 + ((6 + 6 + 6) × (66 − (6 + 6))) := (7 + 7) × (77 − 7) − 7 := (7 + 7) × (77 − 7) − (7 + 7)/7 := ((7 + 7 + 7)/7) + (7 + 7) × (77 − 7) := 8 + ((88/8 × (88 − 8/8)) + 8) := 8 + (((88 × 88 + 8) + 8)/8) := 8 + (((88 × 88 − 8)/8) + 8) := 9/9 + (9 × (99 + 9)) := 999 − (((99 + 9)/9) + 9) := 99/9 + (9 × (99 + 9)) Ï 974 := 1 + (1 + ((1 + 11) × (11 − 1 − 1)1+1 )) := 2 + (2 × (222 + 2)) 3 := 3 + ((3 × (33 + 3)) − 3/3) Ï 984 := (1 + 11) × (1 + (11 − 1 − 1)1+1 ) Ï 979 := 11 × (111 − 11 − 11) := 22/2 + (2 × 222 ) := 2 × (2 × (2 + 2) + 222 ) := (3 × (333 − 3)) − 33/3 := 3 + (3 × (333 − (3 + 3))) 4 := 4 + ((44 × 44 + 4)/((4 + 4)/4)) := 4 × 4 − (44 + 4/4) := 4 + (4 × 44 − 44) := 5 + ((5 − 5/5)5 − 55) := 5 + (((5 − 5/5)5 − 55) + 5) := 5 + ((((5 − 5/5)5 − 55) + 5) + 5) := (6 + 6)/6 + ((6 + 6 + 6) × (66 − (6 + 6))) := (6666/6) − (66 + 66) := 6 + (((6 + 6 + 6) × (66 − (6 + 6))) + 6) := 7/7 + ((7 + 7) × (77 − 7) − 7) := (7 + 7) × (77 − 7) − 7/7 := 77/7 + ((7 + 7) × (77 − 7) − 7) := 8 + ((88 × 88 − (8 + 8))/8) := 88/8 × (8/8 + 88) := 8 + (888 + 88) := (9 + 9)/9 + (9 × (99 + 9)) := 999 − (99/9 + 9) := (9 × (99 + 9)) + (99 + 9)/9 Ï 975 := 111 + (((1 + 11)1+1+1 )/(1 + 1)) Ï 980 := 1 + 11 × (111 − 11 − 11) Ï 985 := 1 + (1 + 11) × (1 + (11 − 1 − 1)1+1 ) := 2 + ((2 × (222 + 2)) + 2/2) := 2 × ((222 + 2 + 2) + 2) := 2 + ((2 × (222 + 2)) + 22/2) := 3 + (33 × (33 + 3)) := (3 × (333 − (3 + 3))) − 3/3 := (3 × 333) − (33/3 + 3) 4 4 := 4 × 4 − 44 := 4 + ((4 × 44 − 44) + 4/4) := 5 × ((5 × 5 × (5 + 5)) − 55) := 5 + (5 × ((5 × 5 × (5 + 5)) − 55)) := 5 + ((5 × ((5 × 5 × (5 + 5)) − 55)) + 5) := 666/6 + (6 × (6 + 6) × (6 + 6)) := (6 × 6 − 6/6) × (((66 + 66)/6) + 6) := 6 + ((6666/6) − (66 + 66)) := 7 + ((7/7 + 7) × (((7 + 7)/7) − 7)) := (7 + 7) × (77 − 7) := 7 + ((7 + 7) × (77 − 7) − ((7 + 7)/7)) := 8 + ((88 × 88 − 8)/8) := ((88 × 88 + 88) + 8)/8 := 8 + (((88 × 88 + 8)/8) + 8) := (9 × (99 + 9)) + ((9 + 9 + 9)/9) := 9 + ((9 × (99 + 9)) − 9/9) := 9 × 9 × 9 + (((9 + 9)/9)9−9/9 ) := 4 × 4 − ((44 + 4/4) + 4) 7 Ï 976 := (1 + 1)1+1+1 × (1 + 111+1 ) Ï 986 := (11 − 1)1+1+1 − 1 − 1 − 1 − 11 Ï 981 := (11 − 1 − 1) × (111 − 1 − 1) 2 2 := 2 + ((2 × 22 ) + 22/2) := 22 + (2 × (222 − 2)) 3 := 3 × (333 − (3 + 3)) := (3 × (333 − 3)) − (3/3 + 3) 4 := 4 × ((4 − 4 × 4) + 4) := 4/4 + (4 × 44 − 44) := 4 + (((4 + 4)/4 − 44) + 4 × 44 ) := 5 + (((5 − 5/5)5/5+5 ) − 55 ) := (5555/5) − (5 × 5 × 5 + 5) := 2 × (22 + 2 + 2) := 3 + ((3 × (33 + 3)) + 3/3) := (5555/5) − 5 × 5 × 5 6 := ((6 + 6)/6 + 6) × ((666 + 66)/6) := 6 × (6 × 6 + 6) + ((6 × 6/(6 + 6)) ) := ((66/6) + 6) × (((6 + 6)/6)6 − 6) := 7 + ((7 + 7) × (77 − 7) − (77/7)) := 7/7 + (7 + 7) × (77 − 7) := 7 + ((7 + 7) × (77 − 7) − 7/7) := 88 + 888 := (8/8 + 8) × ((888 − (8 + 8))/8) := 8 + ((((88 × 88 + 8) + 8)/8) + 8) := 999 − ((99 + 99 + 9)/9) := 9 + (9 × (99 + 9)) := 999 − ((99 + 9 + 9)/9) Ï 977 := 1 + (1 + 1)1+1+1 × (1 + 111+1 ) Ï 982 := 1 + (11 − 1 − 1) × (111 − 1 − 1) Ï 987 := (11 − 1)1+1+1 − 1 − 1 − 11 := 2/2 + (2 × (222 + 2 + 2)) := 2 + (2 × ((222 + 2 + 2) + 2)) := 22 + ((2 × (222 − 2)) + 2/2) := 3 + (((33 × (33 + 3)) − 3/3) + 3) := 3/3 + (3 × (333 − (3 + 3))) := (3 × (333 − 3)) − 3 4 := 4/4 + (4 × ((4 − 4 × 4) + 4)) := (4 + 4)/4 + (4 × 4 − 44) := (4 × (44 − 4 − 4)) − (4/4 + 4) := 5 + ((5 − 5/5) × ((5 − (5 + 5)/5)5 )) := 5 + (((5 − 5/5) × ((5 − (5 + 5)/5)5 )) + 5) := (5 − 5/5)5 − (((5 + 5)/5)5 + 5) := 6 + (((6 + 6 + 6) × (66 − (6 + 6))) − 6/6) := (((6 + 6)/6)(66−6)/6) − (6 × 6 + 6) := ((66 × (6 × 6 − 6)) − 6)/((6 + 6)/6) := (7 + 7) × (77 − 7) − (7 + 7 + 7)/7 := ((7 + 7)/7) + (7 + 7) × (77 − 7) := 7 + (7 + 7) × (77 − 7) 4 := 8 + ((88 × 88 + 8)/8) := 8 + (((88 × 88 − (8 + 8))/8) + 8) := 8 + (88/8 × (8/8 + 88)) := 999 − ((99 + 99)/9) := 9 + ((9 × (99 + 9)) + 9/9) := 999 − (99 + 9)/9 75 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 988 := (11 − 1)1+1+1 − 1 − 11 Ï 993 := 1 + 1 + 1 + (11 − 1 − 1) × (111 − 1) Ï 998 := (11 − 1)1+1+1 − 1 − 1 := 22 + ((2 × 222 ) − 2) := 2 + (((2 × 222 ) + 22) + 2/2) := 22 + (2 × (222 + 2 + 2)) := (3 × 333) − 33/3 := 3 + (3 × (333 − 3)) := (3 × 333) − 3/3 4 := (4 × (4 − 4 − 4)) − 4 := 4/4 + (4 × (4 − 4 − 4)) := (4 × (44 − 4)) + (4 − 44)/4 := (5 − 5/5)5 − (55/5 + 5 × 5) := (5 − 5/5)5 − ((5 × 5 + 5/5) + 5) := (5 − 5/5)5 − (5 × 5 + 5/5) := (((6 + 6)/6)(66−6)/6) − 6 × 6 := ((66 × (6 × 6 − 6)) + 6)/((6 + 6)/6) := 666 + (6 × 66 − ((6 + 6)/6)6 ) := 7 + ((7 + 7) × (77 − 7) + 7/7) := 7 + (((7 + 7) × (77 − 7) − 7/7) + 7) := 7 + ((7 + 7) × (77 − 7) + (77/7)) := 8 + (((88 × 88 + 88) + 8)/8) := 8 + ((((88 × 88 + 8)/8) + 8) + 8) := 888 + ((888 − 8)/8) := 999 − 99/9 := 999 + (((9 + 9 + 9)/9) − 9) := 999 − 9/9 Ï 989 := (11 − 1)1+1+1 − 11 Ï 994 := (1 + 1)11−1 − (11 − 1) × (1 + 1 + 1) Ï 999 := 111 × (11 − 1 − 1) 4 := 22 + (2 × (222 + 2)) 2 := 22 + ((2 × 22 ) − 2/2) := (2/2 + 2)2 × 222/2 3 := ((3 × 3 + 3/3) ) − (3 + 3) := (3 × (333 − 3)) − 3/3 := 3 × 333 4 := 4/4 + ((4 × (44 − 4 − 4)) − 4) := ((4/4 + 4) + 4) × 444/4 := (4 + 4)/4 + (4 × (4 − 4 − 4)) := (5 − 5/5)5 − ((5 × 5 + 5) + 5) := (5 − 5/5) − (5 × 5 + 5) := (5 − 5/5)5 − 5 × 5 := 666 + ((6 × (66 − (6 + 6))) − 6/6) := (((66 − 6)/6)6×6/(6+6) ) − 6 := (6 × 666)/(6 − ((6 + 6)/6)) := 7 + ((7 + 7) × (77 − 7) + ((7 + 7)/7)) := 7 + ((7 + 7) × (77 − 7) + 7) := ((7 + 7)/7 + 7) × 777/7 := 888 + (8888/88) := 8 + (((((88 × 88 + 8) + 8)/8) + 8) + 8) := 888 + 888/8 := 999 − 9/9 − 9 := 999 + ((9 − 99)/(9 + 9)) := 999 5 Ï 1000 := (11 − 1)1+1+1 Ï 995 := (11 − 1)1+1+1 − 1 − 1 − 1 − 1 − 1 Ï 990 := (11 − 1 − 1) × (111 − 1) := 22 + (2 × 222 ) := 22 + ((2 × (222 + 2)) + 2/2) := 2 × (22+2 + 222 ) := 3 × (333 − 3) := (3 × 333) − (3/3 + 3) := (3 × 3 + 3/3)3 := (4 × (44 − 4 − 4)) − (4 + 4)/4 := 4 + ((4 × (44 − 4 − 4)) − 4/4) := (4 × (44 − 4)) − 4 − 4 := (5 + 5) × (5 × (5 × 5 − 5) − 5/5) := (5 × (5 + 5) × (5 × 5 − 5)) − 5 := 5 × (5 + 5) × (5 × 5 − 5) := 6 × ((66 × (6 × 6 − 6))/(6 + 6)) := 666 + (6 × 66 − (66 + 6/6)) := ((66 − 6)/6)6×6/(6+6) := 77/7 × ((77 − 7/7 + 7) + 7) := 7 + (((7 + 7) × (77 − 7) + 7/7) + 7) := ((77 − 7)/7)(7+7+7)/7 := 88/8 × ((8 + 8)/8 + 88) := 8 + ((88/8 × (8/8 + 88)) + 8) := 8 × 8 × (8 + 8) − 8 − 8 − 8 := 999 − 9 := 999 + ((9 − 9 × 9)/(9 + 9)) := 9/9 + 999 Ï 996 := (1 + 1 + 1) × ((1 + 1 + 1) × 111 − 1) Ï 991 := 1 + (11 − 1 − 1) × (111 − 1) 2 Ï 1001 := 1 + (11 − 1)1+1+1 := 22 + ((2 × 222 ) + 2/2) := 2 + ((2 × (22 + 2)) + 22) := ((222/2 − 2)/2) − 22 := 3/3 + (3 × (333 − 3)) := (3 × 333) − 3 := 3 + (3 × 333 − 3/3) := (4 × (4 − 4 − 4)) − 4/4 := 4 + (4 × (44 − 4 − 4)) := 5 + ((5555/5) − 5 × 5 × 5) := 5/5 + ((5 × (5 + 5) × (5 × 5 − 5)) − 5) := 5/5 + 5 × (5 + 5) × (5 × 5 − 5) := 6/6 + ((6 × (66 − (6 + 6))) + 666) := (6 + 6) × (66/6 + 66 + 6) := (6/6 + 6) × ((6 + 6) × (6 + 6) − 6/6) := 77/7 + (7 + 7) × (77 − 7) := (77 + 7)/7 × (77 − 7/7 + 7) := 77 × (7 − 7/7 + 7) := 888 + (888/8 − 8) := 8 × 8 × 8 + 88 × 88/(8 + 8) := 8/8 + (8 × 8 × (8 + 8) − (8 + 8 + 8)) := 9/9 + (999 − 9) := 999 − (9 + 9 + 9)/9 := (9 + 9)/9 + 999 4 Ï 992 := 1 + 1 + (11 − 1 − 1) × (111 − 1) Ï 997 := (11 − 1)1+1+1 − (1 + 1 + 1) := 2 + ((2 × 22 ) + 22) := ((2/2 + 2)2 × 222/2) − 2 := 3 + ((3 × (333 − 3)) − 3/3) := ((3 × 3 + 3/3)3 ) − 3 2 Ï 1002 := 1 + 1 + (11 − 1)1+1+1 := 22×(2+2)+2 − 22 := 3 + 3 × 333 4 4 := (4 × (4 − 4)) − 44/4 := 4 × (4 − 4 − 4) 5 := 4 + (4 × (44 − 4) − 44/4) 5 5 := 4 × 44 − (44/((4 + 4)/4)) 5 := 5 + ((5 − 5/5) − ((5 + 5)/5) ) := (5 − 5/5) − ((5 + 5)/5) 6 := 6 + (((66/6) + 6) × (((6 + 6)/6) − 6)) (6+6)/6 := 6 × 6 + (((6 × 6 − 6) + 6/6) (7+7)/7 := (5 + 5)/5 + 5 × (5 + 5) × (5 × 5 − 5) ) := 66 + ((6 + 6) × (66 + 6 + 6)) := (77 + 7)/7 + (7 + 7) × (77 − 7) := (((77 + 7) := 8 + ((888 + 88) + 8) := 888 + ((888 − (8 + 8))/8) := ((8 + 8)/8) × (8 × 8 × 8 − 88/8) := (9 + 9)/9 + (999 − 9) := 999 − (9 + 9)/9 := 999 + ((9 + 9 + 9)/9) ) − 77)/7 76 := 7/7 + 77 × (7 − 7/7 + 7) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1003 := 1 + 1 + 1 + (11 − 1)1+1+1 Ï 1008 := (11 − 1 − 1) × (1 + 111) Ï 1013 := (1 + 1)11−1 − 11 := (222/2 + 2)/2 − 22 := 2 × (222 − 2 + 22) := (222/2 − 22)/2 := 3 + ((3 × 3 + 3/3)3 ) := 3 × (333 + 3) := 3 + (3 × 333 + 33/3) 4 := 4 × (44 − 4) − (4/4 + 4) := 4 × (4 − 4) := 4 × 44 − 44/4 := 5 + ((5 − 5/5)5 − (5 × 5 + 5/5)) := (5 − 5/5)5 − (55/5 + 5) := (5 − 5/5)5 − 55/5 := (66/6 + 6) × (66 − (6/6 + 6)) := 6 × ((6 × 6 + 66) + 66) := (6 × 6 × (6 × 6 − 6)) − (66 + 6/6) := ((7 + 7)/7) + 77 × (7 − 7/7 + 7) := 7 + 77 × (7 − 7/7 + 7) := 7777/7 − 7 × (7 + 7) := 8 + ((88/8 × (8/8 + 88) + 8) + 8) := (8 + 8) × (8 × 8 − 8/8) := 8 × 8 × (8 + 8) − 88/8 := 999 + ((9 × 9 − 9)/(9 + 9)) := 9 + 999 := (9999 + 9)/9 − 99 Ï 1004 := 1 + 1 + 1 + 1 + (11 − 1)1+1+1 Ï 1009 := 1 + (11 − 1 − 1) × (1 + 111) Ï 1014 := 1 + (1 + 1)11−1 − 11 := 2 + 22×(2+2)+2 − 22 := 2/2 + 2 × (222 − 2 + 22) := 2 + 2 × (222 + 22) := 3 + ((3 × 333 − 3/3) + 3) := 3 × 3 + ((3 × 3 + 3/3)3 ) := 3 + (3 × (333 + 3) + 3) := 4 × (4 − 4) − 4 := 4/4 + 4 × (4 − 4) := 4 × 44 + (4 − 44)/4 := 5 + ((5 − 5/5)5 − 5 × 5) := (5 − 5/5)5 − (5 + 5 + 5) := (5 − 5/5)5 − 5 − 5 := (6 − ((6 + 6)/6)) × (6 × (6 × 6 + 6) − 6/6) := 6/6 + (66 × (6 + 6) + 6 × 6 × 6) := (6 × 6 × (6 × 6 − 6)) − 66 4 4 := 7 + ((((77 + 7) (7+7)/7 ) − 77)/7) := (((77 + 7) (7+7)/7 ) + 7)/7 := (7 − 7/7 + 7) × (7/7 + 77) := 8 × 8 × (8 + 8) − ((88 + 8)/8 + 8) := 8/8 + ((8 + 8) × (8 × 8 − 8/8)) := (8 − 88)/8 + 8 × 8 × (8 + 8) := 999 + ((9 × 9 + 9)/(9 + 9)) := 9 + (999 + 9/9) := 9 + ((999 − ((9 + 9 + 9)/9)) + 9) Ï 1005 := 1 + 1 + 1 + 1 + 1 + (11 − 1)1+1+1 Ï 1015 := 1 + 1 + (1 + 1)11−1 − 11 Ï 1010 := (11111 − 1)/11 := (2 + 222/2 + 2)/2 − 22 := 2 × (222 + 22) − 2 := 2 + (222/2 − 22)/2 := 3 + (3 × 333 + 3) := 33/3 + 3 × 333 := 3 + ((3 × (333 + 3) + 3/3) + 3) := 4/4 + (4 × (44 − 4) − 4) := (4 + 4)/4 + 4 × (44 − 4) := 5 + 5 × (5 + 5) × (5 × 5 − 5) := 5 + (5 × (5 + 5) × (5 × 5 − 5) + 5) := 5 × (((55 − 5)/(5 + 5 + 5)) − 5) := 6 + ((6 × 666)/(6 − ((6 + 6)/6))) := 6 × 6 × 6 + (66 × (6 + 6) + ((6 + 6)/6)) := 6/6 + ((6 × 6 × (6 × 6 − 6)) − 66) := 7 + (((7 + 7) × (77 − 7) + (77/7)) + 7) := ((7 + 7)/7)7 + 7 × (77 + 7 × 7) := 7 × 7 × (7 + 7 + 7) − (7 + 7) := 8 × 8 × (8 + 8) − (88/8 + 8) := 888 + ((888 + 88)/8) := 8 × 8 × (8 + 8) − (8/8 + 8) := 9 + (999 − ((9 + 9 + 9)/9)) := 99/9 + 999 := (((9 + 9)/9)9/9+9 ) − 9 Ï 1006 := (11 − 1 − 1) × (1 + 111) − 1 − 1 Ï 1011 := 11 + (11 − 1)1+1+1 := 4 × 44 − ((4/4 + 4) + 4) Ï 1016 := 1 + 1 + 1 + (1 + 1)11−1 − 11 := (2 × ((222 − 2) + 22)) − 2 := 2 × (222 + 22) − 2/2 := 2 × (222 + 22 + 2) := 3 + (((3 × 3 + 3/3)3 ) + 3) := 3 + (3 × (333 + 3)) := (3 × ((333 + 3) + 3)) − 3/3 := 4 × (4 − 4) − (4 + 4)/4 := 4 + (4 × (4 − 4) − 4/4) := 4 × 44 − 4 − 4 := 5 + (5 × (5 + 5) × (5 × 5 − 5) + 5/5) := 5 × 55 + (555 + 55 )/5 := (5 + 5)/5 + ((5 − 5/5)5 − (5 + 5)) := 6 + (((66 − 6)/6)6×6/(6+6) ) := 6 + (((6 × 666)/(6 − ((6 + 6)/6))) + 6) := (6 × 6 × (6 × 6 − 6)) − ((6 + 6)/6)6 := 7 + (((7 + 7)/7 + 7) × 777/7) := 7 × 7 × (7 + 7 + 7) − (77/7 + 7) := 7 + ((((77 + 7)(7+7)/7 ) + 7)/7) := 8 + ((888 − 8)/8 + 888) := 8 × 8 × (8 + 8) − (88 + 8 + 8)/8 := 8 × 8 × (8 + 8) − 8 := 9 + (999 − ((9 + 9)/9)) := 999 + (99 + 9)/9 := 9 + ((999 − 9/9) + 9) 4 Ï 1007 := (11 − 1 − 1) × (1 + 111) − 1 := (2 22/2 − 2)/2 − 2 2+2 := (3 × (333 + 3)) − 3/3 4 Ï 1012 := (1 + 1)11−1 − 1 − 11 Ï 1017 := (11 − 1 − 1) × (1 + 1 + 111) := 2 × (22 + 22) := 2 + (222/2 − 22)/2 + 2 := 3 + (3 × (333 + 3) + 3/3) := 3 × ((333 + 3) + 3) 2 := 4 × (4 − 4) − 4/4 := 4 + 4 × (4 − 4) := 4 + (4 × 44 − 44/4) := (5 − 5/5)5 − (((55 + 5)/5) + 5) := (5 − 5/5)5 − (55 + 5)/5 := (5 − 5/5)5 − ((5 + 5)/5 + 5) := 6 × 6 × 6 + (66 × (6 + 6) − 6/6) := (((6 + 6)/6)(66−6)/6) − 6 − 6 := 6 × (6 × 6 + 6 + 6) + ((6 × 6/(6 + 6))6 ) := (((77 + 7)(7+7)/7 ) − 7)/7 := 77/7 + 77 × (7 − 7/7 + 7) := ((7/7 + 7) × ((7 + 7)/7)7 ) − 7 := 8 + (888/8 + 888) := 8 × 8 × (8 + 8) − (88 + 8)/8 := 8/8 + (8 × 8 × (8 + 8) − 8) := 9 + (999 − 9/9) := 9999/9 − 99 := 9 + (999 + 9) 4 4 77 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1018 := ((1 + 1)11 − (1 + 11))/(1 + 1) Ï 1023 := (1 + 1)11−1 − 1 Ï 1028 := 1 + (1 + 1 + 1 + (1 + 1)11−1 ) := 2 + (2 × ((222 + 22) + 2)) := (222/2 − 2)/2 := 2 + ((22×(2+2)+2 ) + 2) := 3/3 + (3 × ((333 + 3) + 3)) := 33 + (3 × 333 − 3) := (3 × (((3/3 + 3) + 3)3 )) − 3/3 := 4 × 4 − ((4 + 4)/4 + 4) := 4 × 44 − 4/4 := 4 + 4 × 44 := (5 − 5/5)5 − (5/5 + 5) := (5 − 5/5)5 − 5/5 := 5 + ((5 − 5/5)5 − 5/5) := (((6 + 6)/6)(66−6)/6) − 6 := (((6 + 6)/6)(66−6)/6) − 6/6 := 666 + (6 × (66 − 6) + ((6 + 6)/6)) := 7 × 7 × (7 + 7 + 7) − 77/7 := 7/7 + (7 × 7 × (7 + 7 + 7) − 7) := 7 × 7 × (7 + 7 + 7) − 7/7 := (8 + 8)/8 + (8 × 8 × (8 + 8) − 8) := 8 × 8 × (8 + 8) − 8/8 := 8 × 8 × (8 + 8) + (8/((8 + 8)/8)) := 9 + ((999 + 9/9) + 9) := (((9 + 9)/9)9/9+9 ) − 9/9 := 9 + ((99/9 + 999) + 9) 4 Ï 1019 := (1 + (1 + 1)11 − 11)/(1 + 1) Ï 1029 := (11 + (1 + 1)11 − 1)/(1 + 1) Ï 1024 := (1 + 1)11−1 := ((222/2 − 2)/2) − 2 − 2 := 22×(2+2)+2 := 2 + (((222/2 + 2)/2) + 2) := 33/3 + (3 × (333 + 3)) := (3 − 3/3)3×3+3/3 := 3 × (((3/3 + 3) + 3)3 ) := 4 × 44 − (4/4 + 4) := 4 × 44 := 4 + (4 × 44 + 4/4) := (5 − 5/5)5 − 5 := (5 − 5/5)5 := 5 + (5 − 5/5)5 := ((66 − 6) × (66/6 + 6)) − 6/6 := ((6 + 6)/6)(66−6)/6 := 666 + 66 × 66/(6 + 6) := ((7 − 77)/7) + 7 × 7 × (7 + 7 + 7) := (7/7 + 7) × ((7 + 7)/7)7 := 7 × 7 × (7 + 7 + 7) := 88/8 + ((8 + 8) × (8 × 8 − 8/8)) := 9 + (99/9 + 999) Ï 1020 := (1 + 1)11−1 − 1 − 1 − 1 − 1 2 := 8 × 8 × (8 + 8) := ((9999 − 9)/9) − 9 × 9 := ((9 + 9)/9)9/9+9 Ï 1030 := (1 + 11 + (1 + 1)11 )/(1 + 1) Ï 1025 := 1 + (1 + 1)11−1 := 2 + (((22×(2+2)+2 ) + 2) + 2) := 2 × ((2(2/2+2) ) − 2) := (222/2 + 2)/2 := 3 + (3 × ((333 + 3) + 3)) := 33 + (3 × 333 − 3/3) := 4 × 44 − 4 := 5/5 + ((5 − 5/5)5 − 5) := (66 − 6) × (66/6 + 6) := 7 + (7777/7 − 7 × (7 + 7)) := 8 × 8 × (8 + 8) − (8/((8 + 8)/8)) := 9 + (((99 + 9)/9) + 999) Ï 1021 := (1 + 1)11−1 − 1 − 1 − 1 := ((222/2 − 2)/2) − 2 := 8 + ((8 × 8 × (8 + 8) − (88/8)) + 8) := 4/4 + 4 × 44 := 3 + (((3 × 3 + 3/3)3 ) + 33 ) := 4 + ((4 + 4)/4 + 4 × 44 ) := 5 + ((5 − 5/5)5 + 5/5) := 5/5 + (5 − 5/5)5 := 6/6 + (((6 + 6)/6)(66−6)/6) := 7 + (7 × 7 × (7 + 7 + 7) − (77/7)) := 8/8 + 8 × 8 × (8 + 8) := 9 + (((999 − 9/9) + 9) + 9) Ï 1026 := 1 + 1 + (1 + 1)11−1 := 2 + (22×(2+2)+2 ) := 6 + (((6 + 6)/6)(66−6)/6) := 7/7 + 7 × 7 × (7 + 7 + 7) := 8 + (8 × 8 × (8 + 8) − ((8 + 8)/8)) := 9999/9 − 9 × 9 Ï 1031 := 1 + (1 + 11 + (1 + 1)11 )/(1 + 1) := 2 + ((((222/2 + 2)/2) + 2) + 2) := 33 + (3 × 333 − 3/3) := ((3 − 3/3)3×3+3/3 ) − 3 := 3 × (333 + 3 × 3) := 4/4 + (4 × 44 − 4) := (4 + 4)/4 + 4 × 44 := (5 + 5)/5 + ((5 − 5/5)5 − 5) := (5 + 5)/5 + (5 − 5/5)5 := 6/6 + ((66 − 6) × (66/6 + 6)) := 666 + 6 × (66 − 6) := 7 × 7 × (7 + 7 + 7) − (7/7 + 7) := ((7 + 7 + 7)/7) × (7 × 7 × 7 − 7/7) := 7 + ((7/7 + 7) × ((7 + 7)/7)7 ) := 8 + (8 × 8 × (8 + 8) − (88/8)) := (8 + 8)/8 + 8 × 8 × (8 + 8) := 8 + (8 × 8 × (8 + 8) − 8/8) := 9 + (9999/9 − 99) := 9 + (999 + 9 + 9) := (9999 + 9)/9 − 9 × 9 Ï 1022 := (1 + 1)11−1 − 1 − 1 := 4 + ((4 × 44 − 4/4) + 4) Ï 1027 := 1 + 1 + 1 + (1 + 1)11−1 := 5 + ((5 − 5/5)5 + ((5 + 5)/5)) := 6 + ((((6 + 6)/6)(66−6)/6) + 6/6) Ï 1032 := 11 + (1 + 1)11−1 − 1 − 1 − 1 := (22×(2+2)+2 ) − 2 := 2 + ((222/2 + 2)/2) := 2 × (2 × (22×(2+2) + 2)) := 3 + (3 × (333 + 3) + 33/3) := 33 + ((3 × 3 + 3/3)3 ) := 33 + 3 × 333 := 4 × 4 − (4 + 4)/4 := 4 + (4 × 44 − 4/4) := 4 + (4 × 44 + 4) := (5 − 5/5)5 − (5 + 5)/5 := 5 + ((5 − 5/5)5 − ((5 + 5)/5)) := 5 + (5 − 5/5)5 − (5 + 5)/5 + 5 := 6 + ((6 × 6 × (6 × 6 − 6)) − ((6 + 6)/6)6 ) := 6/6 + (6 × (66 − 6) + 666) := 6 + (6 × (66 − 6) + 666) := 7 × 7 × (7 + 7 + 7) − 7 := 7 × 7 × (7 + 7 + 7) − (7 + 7)/7 := (7/7 + 7) × (((7 + 7)/7)7 + 7/7) := 8 × 8 × (8 + 8) − (8 + 8)/8 := 88/8 + (8 × 8 × (8 + 8) − 8) := 8 + 8 × 8 × (8 + 8) := 9 + ((9999 + 9)/9 − 99) := 9 + (((999 + 9/9) + 9) + 9) := 9 + ((((9 + 9)/9)9/9+9 ) − 9/9) 4 78 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1033 := 11 + (1 + 1)11−1 − 1 − 1 Ï 1038 := 1 + 1 + 1 + 11 + (1 + 1)11−1 Ï 1043 := (1 + 1) × (11 − 1) + (1 + 1)11−1 − 1 := ((222/2 + 22)/2) − 2 := 2 + (2 × ((2 × (22×(2+2) + 2)) + 2)) := 22 + (((222/2 − 2)/2) − 2) := 33 + ((3 × 3 + 3/3)3 ) := 3 × ((((3/3 + 3) + 3)3 ) + 3) := 33 + (3 × 333 + 33/3) := 4 + ((4 × 44 + 4/4) + 4) := 4 × (44 + 4) − (4 + 4)/4 := 4 + (4 × (44 + 4) − 4/4) := 5 + (((5 − 5/5)5 − 5/5) + 5) := 5 + ((((5 − 5/5)5 − 5/5) + 5) + 5) := 5 × 5 + ((5 − 5/5)5 − (5/5 + 5)) := (6666/6) − (66 + 6 + 6) := (6 × (6 × (6 × 6 − 6) − 6)) − 6 := (6 × (6 × (6 × 6 − 6) − 6)) − 6/6 := (7777 − 7)/7 − 77 := 7 + (((7/7 + 7) × ((7 + 7)/7)7 ) + 7) := 7 + (7 × 7 × (7 + 7 + 7) + 7) := 8 + (8 × 8 × (8 + 8) + 8/8) := 8 + ((8 × 8 × (8 + 8) − ((8 + 8)/8)) + 8) := 8 + (8 × 8 × (8 + 8) + (88/8)) := 9 + (((9999 − 9)/9) − 9 × 9) := (9 × (99 + 9 + 9)) − 9/9 − 9 9/9+9 := 9 + (((9 + 9)/9) ) Ï 1034 := 11 + (1 + 1)11−1 − 1 Ï 1039 := 1 + 1 + 1 + 1 + 11 + (1 + 1)11−1 Ï 1044 := ((1 + 1) × (11 − 1)) + (1 + 1)11−1 := 2 + (2 × (2 × (22×(2+2) + 2))) := 2 + (((222/2 + 22)/2) + 2) := 22 + ((22×(2+2)+2 ) − 2) := ((33/3)3 ) − 3 × 3 × 33 := (3333 − (3 + 3)3 )/3 := 3 + (3 × (333 + 3) + 33) := 4 × 44 + (44 − 4)/4 := 4 × (44 + 4) − 4/4 := 4 + 4 × (44 + 4) := 5 + ((5 − 5/5)5 + 5) := 5 + (((5 − 5/5)5 + 5) + 5) := 5 × 5 + ((5 − 5/5)5 − 5) := ((6666 − 66)/6) − 66 := (6666/6) − (66 + 6) := 6 × (6 × (6 × 6 − 6) − 6) := 7777/7 − 77 := ((77 − 7)/7) + 7 × 7 × (7 + 7 + 7) := 7 + ((7 × 7 × (7 + 7 + 7) + 7/7) + 7) := 8 + (8 × 8 × (8 + 8) + ((8 + 8)/8)) := 8 + ((8 × 8 × (8 + 8) − 8/8) + 8) := ((88 + 8)/8) × (88 − 8/8) := 9 + ((((999 − 9/9) + 9) + 9) + 9) := 9 + (9999/9 − 9 × 9) := (9 × (99 + 9 + 9)) − 9 Ï 1035 := 11 + (1 + 1)11−1 Ï 1040 := 11 + ((11 + ((1 + 1)11 − 1))/(1 + 1)) Ï 1045 := 11 + (11 + ((1 + 1)11−1 − 1)) := (222/2 + 22)/2 := 2 × ((2 + 2 + 2)2 + 222 ) := 22 + ((222/2 − 2)/2) := 3 + (3 × 333 + 33) := 33 + (3 × (333 + 3) − 3/3) := 33/3 × (3 × 33 − (3/3 + 3)) := 4 × (4 + 4) := 4 + (4 × (44 + 4) + 4/4) := 55/5 + (5 − 5/5)5 := 5 × ((55 − 5)/(5 + 5 + 5)) := 55 × (5 × 5 − (5/5 + 5)) := 6 + (66 × 66/(6 + 6) + 666) := (6/6 − 66) × (((6 − 66)/6) − 6) := (6666/6) − 66 := 7 + (7 × 7 × (7 + 7 + 7) − 7/7) := 77/7 + 7 × 7 × (7 + 7 + 7) := 77/7 × ((77/7 + 77) + 7) := 88/8 + 8 × 8 × (8 + 8) := 8 + (8 × 8 × (8 + 8) + 8) := 88/8 × (88 − 8/8 + 8) := 9 + ((999 + 9 + 9) + 9) := 9 + ((9999 + 9)/9 − 9 × 9) := 9/9 + ((9 × (99 + 9 + 9)) − 9) := 44/4 + 4 × 4 4 Ï 1036 := 1 + 11 + (1 + 1)11−1 4 Ï 1041 := 11 + ((1 + (11 + (1 + 1)11 ))/(1 + 1)) Ï 1046 := 11 + 11 + (1 + 1)11−1 := 2 × ((2 × (22×(2+2) + 2)) + 2) := 22+2 + ((222/2 + 2)/2) := 22 + (22×(2+2)+2 ) := 3 + (((3 × 3 + 3/3)3 ) + 33) := 33 + (3 × (333 + 3)) := 3 + ((3 × 333 + 33/3) + 33) 4 := 4 + (4 × (44 + 4) + (4 + 4)/4) := 4 × (44 + 4) − 4 := 4/4 + 4 × (4 + 4) := (5 − 5/5)5 + (55 + 5)/5 := 5 + ((5 − 5/5)5 + ((55 + 5)/5)) := 5/5 + (55 × (5 × 5 − (5/5 + 5))) := 6 + ((((6 + 6)/6)(66−6)/6) + 6) := (6666/6) − (((6 + 6)/6) + 6) := (6666 + 6)/6 − 66 := 7 + 7 × 7 × (7 + 7 + 7) := 7 + (7777/7 − 77) := 7 + (7 × 7 × (7 + 7 + 7) + ((77 − 7)/7)) := ((88 + 8)/8) + 8 × 8 × (8 + 8) := 8 + ((8 × 8 × (8 + 8) + 8/8) + 8) := (8888 − 8)/8 − 8 × 8 := 9 + ((((999 + 9/9) + 9) + 9) + 9) := (9 × (99 + 9 + 9)) − (99 + 9)/9 := (9 + 9)/9 + ((9 × (99 + 9 + 9)) − 9) 6 Ï 1042 := (1 + 1)11−1 + (1 + 1) × (11 − 1 − 1) Ï 1047 := 1 + (11 + 11 + (1 + 1)11−1 ) := 2 + ((222/2 + 22)/2) := 2 + ((22×(2+2)+2 ) + 22+2 ) := 22 + ((222/2 + 2)/2) := 3 + (((33/3)3 ) − 3 × 3 × 33) := 3 + ((3333 − (3 + 3)3 )/3) := 3 × (((((3/3 + 3) + 3)3 ) + 3) + 3) := 4/4 + (4 × (44 + 4) − 4) := (4 + 4)/4 + 4 × (44 + 4) := (4444 − 44 )/4 := (5 − 5/5)5 + (55 + 5 + 5)/5 := (55 + 5/5)/(5 − (5 + 5)/5) := 5 + (55 + 5/5)/(5 − (5 + 5)/5) := (66/6 + 6) × ((66 − 6) + 6/6) := (6 × (6 × (6 × 6 − 6) − 6)) − (6 + 6)/6 := (6666/6) − ((6 + 6)/6)6 := 7 + (7 × 7 × (7 + 7 + 7) + 7/7) := 7 + ((7 × 7 × (7 + 7 + 7) − 7/7) + 7) := 7 + (7 × 7 × (7 + 7 + 7) + (77/7)) := 8 × 8 × (8 + 8) + (88 + 8 + 8)/8 := 8 + ((8 × 8 × (8 + 8) + ((8 + 8)/8)) + 8) := 8888/8 − 8 × 8 := 9 + (((99/9 + 999) + 9) + 9) := 9 + ((((9 + 9)/9)9/9+9 ) + 9) := 9 + ((((9999 − 9)/9) − 9 × 9) + 9) Ï 1037 := 1 + 1 + 11 + (1 + 1)11−1 79 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1048 := (1 + 1)11 − (11 − 1)1+1+1 := 2 + ((22×(2+2)+2 ) + 22) := 3 + (33/3 × (3 × 33 − (3/3 + 3))) Ï 1053 := (1 + 1 + 11) × (11 − 1 − 1)1+1 := 2/2 + (2 × ((22 × (22 + 2)) − 2)) 3 := 3 × (33 + 3 + 3) Ï 1058 := (1 + 1) × (1 + 11 + 11)1+1 := 2 × ((22 + 2/2)2 ) := 3 + (33 × 33 − (3/3 + 33)) 4 := 4 + (4 × (44 + 4) + 4) := 44 + (4 × (4 − 4) + 4/4) := (4 + 4)/4 + 4 × (44 + 4 + 4) := 5 × 5 + ((5 − 5/5)5 − 5/5) := 5 + (((5 − 5/5)5 − 5/5) + 5 × 5) := (5555 + 5 + 5)/5 − 55 := 6 + ((6 × (6 × (6 × 6 − 6) − 6)) − ((6 + 6)/6)) := 6 + ((6666/6) − ((6 + 6)/6)6 ) := 6 + (((6666 + 6)/6 − 66) + 6) := 7 + ((7777/7 − 77) + 7) := 77 × (7 + 7) − (77/7 + 7 + 7) := 7/7 + ((7 + 7) × (77 − 7) + 77) := 8 + ((8 × 8 × (8 + 8) + 8) + 8) := 8 + (88/8 × (88 − 8/8 + 8)) := ((88 × (88 + 8) + 8) + 8)/8 := 9 + ((9999/9 − 9 × 9) + 9) := 9 × (99 + 9 + 9) := ((99/9) × (99 − ((9 + 9)/9))) − 9 Ï 1049 := 1 + ((1 + 1)11 − (11 − 1)1+1+1 ) Ï 1054 := 1 + ((1 + 1 + 11) × (11 − 1 − 1)1+1 ) Ï 1059 := 1 + ((1 + 1) × (1 + 11 + 11)1+1 ) := 2 + (((222/2 + 2)/2) + 22) := 2 × (((22 + 2/2)2 ) − 2) := ((((2 × 22) + 2)2 ) + 2)/2 := 33 × (33 + 3 + 3) − (3/3 + 3) := 3/3 + 33 × (33 + 3 + 3) := 3 + (33 × (33 − 3/3)) := 4 + ((4 × (44 + 4) + 4/4) + 4) := 4 × (44 + 4 + 4) − (4 + 4)/4 := 5 × 5 + (5 − 5/5)5 := 5 + ((5 − 5/5)5 + 5 × 5) := 5 + (((5 − 5/5)5 + 5 × 5) + 5) := 6 + ((6 × (6 × (6 × 6 − 6) − 6)) − 6/6) := 6 × 6 + ((((6 + 6)/6)(66−6)/6) − 6) := 666 + (6 × 66 − (6 × 6/(6 + 6))) := ((7 + 7) × (77 − (7 + 7)/7)) − 7/7 := (7777 − 7)/7 − (7 × 7 + 7) := ((88 × (88 + 8) + 8)/8) − 8 := (88 × (88 + 8) − (8 + 8))/8 := 999 + ((9 × 99 + 9)/(9 + 9)) := 9/9 + (9 × (99 + 9 + 9)) Ï 1050 := (11 − 1) × (111 − ((1 + 1) × (1 + 1 + 1))) Ï 1055 := 1111 − (1 + 111)/(1 + 1) := 4 + (4 × (44 + 4 + 4) − 4/4) := 77 × (7 + 7) − ((77 + 7)/7 + 7) := (((88 × (88 + 8) + 8) + 8) + 8)/8 := 9 + ((9 × (99 + 9 + 9)) − ((9 + 9 + 9)/9)) Ï 1060 := (1 + 1) × (1 + (1 + 11 + 11)1+1 ) := 2 + (2 × ((22 + 2/2)2 )) := 2 × (((22 + 2/2)2 ) − (2 + 2)) := (2 × (22 × (22 + 2))) − 2/2 := 33 × (33 + 3 + 3) − 3 := 33 × 33 − 3/3 − 33 := 4 × (44 + 4) + (44 − 4)/4 := 4 × (44 + 4 + 4) − 4/4 := (5 + 5) × (5 × (5 × 5 − 5) + 5) := 5 + ((5 + 5) × (5 × (5 × 5 − 5) + 5)) := 6 + (6 × (6 × (6 × 6 − 6) − 6)) := 666 + (6 × 66 − (6/6 + 6)) := 6 × 6 + (((6 + 6)/6)(66−6)/6) := (7 + 7) × (77 − (7 + 7)/7) := 7777/7 − (7 × 7 + 7) := 77 × (7 + 7) − (77/7 + 7) := (((88 × (88 + 8) + 8) + 8)/8) − 8 := (88 × (88 + 8) − 8)/8 := ((88 × (8 + 8 + 8)) + 8)/((8 + 8)/8) := (9 × (99 + 9 + 9)) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 × (99 + 9 + 9)) := 9 + ((9 × (99 + 9 + 9)) − ((9 + 9)/9)) Ï 1051 := 1111 − (111+1 − 1)/(1 + 1) Ï 1056 := (1 + 1) × ((1 + 11 + 11)1+1 − 1) := 3 + ((33 × (33 − 3/3)) + 3/3) := 4 + 4 × (44 + 4 + 4) := (5 + 5) × (555/5 − 5) Ï 1061 := 1 + ((1 + 1) × (1 + (1 + 11 + 11)1+1 )) := (2 × ((22 × (22 + 2)) − 2)) − 2/2 := 2 × (22 × (22 + 2)) := 2 + (((((2 × 22) + 2)2 ) + 2)/2) := 33 + ((3 − 3/3)3×3+3/3 ) := 33 × (33 − 3/3) := 33+3 + (333 − 3/3) := 44/4 + 4 × (44 + 4) := 4 × (44 + 4 + 4) := 4 + (4 × (44 + 4 + 4) + 4/4) := 5555/5 − (55 + 5) := 5555/5 − 55 := 5 + (5555/5 − 55) := 6 + ((6666/6) − 66) := 66 × (((66 − 6)/6) + 6) := 666 + (6 × 66 − 6/6) := 7/7 + ((7 + 7) × (77 − (7 + 7)/7)) := 77 + ((7 + 7) × (77 − 7) − 7/7) := (7777 − 7)/7 − 7 × 7 := 8 + ((8 × 8 × (8 + 8) + (88/8)) + 8) := 88 × (88 + 8)/8 := 8 + ((88/8 × (88 − 8/8 + 8)) + 8) := 99/9 × (99 − ((9 + 9 + 9)/9)) := 9 + ((9 × (99 + 9 + 9)) − 9/9) := (9 × (99 + 9 + 9)) − (9 + 9)/9 Ï 1052 := 11 × 111 − (1 + 1 + 11)1+1 Ï 1057 := (11 × (1 + 1 + 1)) + (1 + 1)11−1 Ï 1062 := (1 + 1) × (1 + (1 + (1 + 11 + 11)1+1 )) := 2 × ((22 × (22 + 2)) − 2) := ((((2 × 22) + 2)2 ) − 2)/2 := 2 × (((22 + 2/2)2 ) + 2) := 33 × (33 + 3 + 3) − 3/3 := 3/3 + (33 × (33 − 3/3)) := 33+3 + 333 := 44 + 4 × (44 − 4) := 4/4 + 4 × (44 + 4 + 4) := 4 + (4 × (44 + 4 + 4) + (4 + 4)/4) := (5555 + 5)/5 − (55 + 5) := (5555 + 5)/5 − 55 := 5 + ((5555 + 5)/5 − 55) := 6 + ((6666 + 6)/6 − 66) := 6 + (((6666/6) − 66) + 6) := 666 + 6 × 66 := 7 + (77/7 × ((77/7 + 77) + 7)) := 77 + (7 + 7) × (77 − 7) := 7777/7 − 7 × 7 := 8 + (((88 + 8)/8) × (88 − 8/8)) := (88 × (88 + 8) + 8)/8 := 8 + ((88 × (88 + 8) − (8 + 8))/8) := (9 × (99 + 9 + 9)) − 9/9 := 9 + (((9999/9 − 9 × 9) + 9) + 9) := 9 + (9 × (99 + 9 + 9)) 80 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1063 := 1111 − ((1 + 1) × ((1 + 1) × (1 + 11))) 2 Ï 1068 := (1 + 11) × (111 − 11 − 11) (2/2+2)2 Ï 1073 := 1111 − (1 + (111/(1 + 1 + 1))) := ((22/2 + 22)2 ) − 22+2 := 2 + ((((((2 × 22) + 2) ) + 2)/2) + 2) := 2 × ((2 := 3/3 + (33+3 + 333) := 3 + ((33+3 + 333) + 3) := 33+3 + (333 + 33/3) := 44 + (4 × 44 − (4/4 + 4)) := 44 + 4 × 44 := 4 + ((4 × 44 + 4/4) + 44) := 5 × 5 × 55 + ((5 − 55 )/(5 + 5)) := 55 + ((5 − 5/5)5 − 55/5) := 55 + ((5 − 5/5)5 − (5/5 + 5)) := 6/6 + (666 + 6 × 66) ) + 22) := 6 + (666 + 6 × 66) := (6 × 6 × (6 × 6 − 6)) − 6/6 − 6 := 77 × (7 + 7) − (7/7 + 7 + 7) := ((7 − 77)/7) + 77 × (7 + 7) := ((7 + 7)/7) + (77 × (7 + 7) − 7) := 8 + ((88 × (88 + 8) − 8)/8) := (8/8 + 88) × ((88 + 8)/8) := 8 + (((88 × (88 + 8) + 8)/8) + 8) := 9 + ((9 × (99 + 9 + 9)) + 9/9) := 9 × 9 + (999 − ((99 + 9)/9)) := 9 + ((9 × (99 + 9 + 9)) + (99/9)) Ï 1064 := (1 + 1)1+1+1 × (1 + (11 × (1 + 11))) Ï 1069 := 1 + ((1 + 11) × (111 − 11 − 11)) Ï 1074 := 1111 − (111/(1 + 1 + 1)) := 2 + (2 × (((22 + 2/2) ) + 2)) := ((((2 × 22) + 2) ) + 22)/2 := (2 + 2 + 2)2+2 − 222 := 3 + ((33+3 − 3/3) + 333) := 33+3 + (3/3 + 3 + 3)3 − 3 := 3 + (3 × ((333 − 3) + 33 )) := 44 + (4 × 44 − 4) := 44 + (4 × 44 + 4/4) := 4 + (((4 + 4)/4 + 4 × 44 ) + 44) := 5 + ((((5 − 5/5)5 + 5 × 5) + 5) + 5) := 55 + ((5 − 5/5)5 − (5 + 5)) := 55 + ((5 − 5/5)5 − 5) 2 2 := 666 + (((6 + 6)/6) + 6 × 66) := (6 × 6 × (6 × 6 − 6)) − 66/6 := (6 × 6 × (6 × 6 − 6)) − 6 := (7 + 7) × (77 − 7/7) := 7 + (7777/7 − 7 × 7) := 7 + (77 × (7 + 7) − (77/7)) := 8 + (88 × ((88 + 8)/8)) := (8 × (8 × (8 + 8) + 8)) − (88/8 + 8) := 8 + ((((88 × (88 + 8) + 8) + 8)/8) + 8) := 99/9 + (9 × (99 + 9 + 9)) := 9 × 9 + (999 − (99/9)) := (9 × (99 + 9)) + (999/9 − 9) Ï 1065 := 1111 − ((1 + 1) × (1 + (11 + 11))) := (2222/2) − ((2 × 22) + 2) := 3 + (3 3+3 Ï 1070 := (11 − 1) × (111 − (1 + 1 + 1 + 1)) := 2 + ((22×(2+2)+2 ) + 2 × 22) 3 := 3 × 333 + (((3 + 3) − 3)/3) + 333) 4 4 Ï 1075 := 1111 − ((1 + 1 + 1) × (1 + 11)) := 222/2 + (2 × (222 − 2)) := 33 × 33 − (33/3 + 3) := 44 + ((4 × 4 − 4) + 4/4) := 44 + ((4 + 4)/4 + 4 × 4 ) := ((44/4)4−4/4 ) − 44 := 5 + ((5 + 5) × (555/5 − 5)) := (5 + 5) × ((555 + 5)/5 − 5) := 5 × (5 × 55 − (55 + 5)) := 66 + ((6 × 666)/(6 − ((6 + 6)/6))) := (6 − 6/6) × (6 × 6 × 6 − (6 + 6)/6) := (6666/6) − 6 × 6 := 7/7 + ((7 + 7) × (77 − 7/7)) := 77 × (7 + 7) − (7/7 + 7) := 77 × (7 + 7) − (7 + 7 + 7)/7 := 8 + ((88 × (88 + 8) + 8)/8) := 8 + (((88 × (88 + 8) − (8 + 8))/8) + 8) := 8 + (88/8 × ((8/8 + 88) + 8)) := ((99 + 9)/9) + (9 × (99 + 9 + 9)) := 99 + ((9 × (99 + 9)) − 9/9) := 9999/9 − ((9 + 9 + 9) + 9) Ï 1066 := (1 + 1 + 11) × (1 + (11 − 1 − 1)1+1 ) 2 Ï 1071 := (11 − 1 − 1) × (111+1 − (1 + 1)) 2 Ï 1076 := 1 + (1111 − ((1 + 1 + 1) × (1 + 11))) := 2 × ((((22 + 2/2) ) + 2) + 2) := 2 + (((((2 × 22) + 2) ) + 22)/2) := 2 + ((2 + 2 + 2)2+2 − 222) := 3 + ((33+3 + 333) + 3/3) := 3 × ((333 − 3) + 33 ) := ((3 − 33)/3) + (33 × 33 − 3) 4 := 44 + (4 × 4 − (4 + 4)/4) := 4 + ((4 × 4 − 4/4) + 44) := 4 + ((4 × 44 + 44) + 4) := 5 + (5555/5 − 55 + 5) := 5 + (5555/5 − 55 + 5 + 5) := 5/5 + (5 × (5 × 55 − (55 + 5))) := (6/6 + 6) × (666/6 + 6 × 6 + 6) := (6666 + 6)/6 − 6 × 6 := 77 × (7 + 7) − 7 := 77 × (7 + 7) − (7 + 7)/7 := 8 + (((88 × (88 + 8) + 8) + 8)/8) := (8/8 + 8) × (888/8 + 8) := 8 + ((8/8 + 88) × ((88 + 8)/8)) := (9/9 + 9 × 9) × ((99 + 9 + 9)/9) := 99 + (9 × (99 + 9)) := 9 + ((99/9) × (99 − ((9 + 9)/9))) 4 (66−6)/6) := 6 + ((((6 + 6)/6) + 6 × 6) := 77 × (7 + 7) − (77 + 7)/7 Ï 1067 := 11 × (111 − (1 + (1 + 1 + 11))) Ï 1072 := 1 + ((11 − 1 − 1) × (111+1 − (1 + 1))) (2/2+2)2 := (2222/2) − (2 × 22) := 2 × (((2 ) + 22) + 2) := 33/3 + (33 × (33 − 3/3)) := 33+3 + (((3/3 + 3) + 3)3 ) Ï 1077 := 1111 − (1 + 11 × (1 + 1 + 1)) := 222/2 + ((2 × 222 ) − 2) := 33 × 33 − (3 × 3 + 3) := 44 + (4 × 44 − 4/4) := 4 + (4 × 4 + 44) := 4 × 44 + ((44 − 44)/4) := ((5555 + 55)/5) − 55 := 55 − ((((5 + 5)/5)55/5 ) + 5) := 55 − (((5 + 5)/5)55/5 ) := 6 + ((6 × 66 − 6/6) + 666) := (66 + 6/6) × (((66 − 6)/6) + 6) := (6 × 6 × (6 × 6 − 6)) − 6 × 6/(6 + 6) := 77 × (7 + 7) − 77/7 4 := 7/7 + (77 × (7 + 7) − 7) := 77 × (7 + 7) − 7/7 := 88/8 × ((8/8 + 88) + 8) := (8 × (8 × (8 + 8) + 8)) − 8 − 8 := (8 × (8 × (8 + 8) + 8)) − 88/8 := 99/9 × (99 − ((9 + 9)/9)) := 9/9 + ((999 − 9) + 9 × 9) := ((99 × 99) − (99 + 9))/9 81 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1083 := (1 + 1 + 1) × ((1 + 1) × (11 − 1) − 1)1+1 Ï 1078 := 11 × (111 − 1 − 1 − 11) Ï 1088 := (11 × (1 + 1 + 1))1+1 − 1 := 22 + (2 × (22 × (22 + 2))) := (2/2 + 2) × ((22 − (2/2 + 2))2 ) := ((22/2 + 22)2 ) − 2/2 := 33 × 33 − 33/3 := 33 × 33 − (3 + 3) := 33 × 33 − 3/3 4 := 44 + ((44 − 4)/4 + 4 × 4 ) := 44 + (4 × (4 + 4) − 4/4) := 4 × (4 × 4 + 44 ) := 55 + ((5 − 5/5)5 − 5/5) := 5 + (((5 − 5/5)5 − 5/5) + 55) := (5 + 5)/5 × (555 − (55/5)) := (6 × 6 × (6 × 6 − 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × 6 × (6 × 6 − 6)) := (66/6 + 6) × ((6 + 6)/6)6 := 77 × (7 + 7) := 7 + (77 × (7 + 7) − ((7 + 7)/7)) := 77 × (7 + 7) + (77 − 7)/7 := 88/8 × (((8 + 8)/8 + 88) + 8) := (88/8 + 8) × ((8/8 − 8) + 8 × 8) := 8 × (8 × (8 + 8) + 8) := 99/9 × (99 − 9/9) := (9 × (99 + 9)) + 999/9 := ((99 × 99) − 9)/9 Ï 1079 := 1 + (11 × (111 − 1 − 1 − 11)) := 222/2 + (2 × 222 ) 4 Ï 1084 := 1111 − ((1 + 1 + 1)1+1+1 ) Ï 1089 := (11 × (1 + 1 + 1))1+1 := 22 + (2 × (((22 + 2/2)2 ) + 2)) := (22/2 + 22)2 := 3333/3 − 33 := 33 × 33 := 44 + (44/4 + 4 × 4 ) := 44 + 4 × (44 + 4) := 4/4 + (4 × (4 × 4 + 44 )) := 55 + (5 − 5/5)5 := 5 + ((5 − 5/5)5 + 55) := 5 + (((5 − 5/5)5 + 55) + 5) := (6 × 6 × (6 × 6 − 6)) − 6/6 := 6 + ((6 × 6 × (6 × 6 − 6)) − ((6 + 6)/6)) := 66 × 66/(6 − ((6 + 6)/6)) := 7/7 + 77 × (7 + 7) := 7 + (77 × (7 + 7) − 7/7) := 77/7 + 77 × (7 + 7) := (8 × (8 × (8 + 8) + 8)) − (8/8 + 8) := (8 × (8 × (8 + 8) + 8)) − (8/((8 + 8)/8)) := 8/8 + (8 × (8 × (8 + 8) + 8)) := 9 × 9 + (999 − 9/9) := 9999/9 − (9 + 9 + 9) := 99 × (99/9) := ((3 − 33)/3) + 33 × 33 4 Ï 1080 := (11 − 1) × (111 − 1 − 1 − 1) Ï 1085 := 1111 − ((1 + 1) × (1 + 1 + 11)) Ï 1090 := 1 + (11 × (1 + 1 + 1))1+1 := 22 + (2 × ((22 + 2/2)2 )) := ((22/2 + 22)2 ) − 2 − 2 := 2/2 + ((22/2 + 22)2 ) := 3 × (333 + 33 ) := 33 × 33 − (3/3 + 3) := 3/3 + 33 × 33 4 := 44 + (4 × (4 + 4) − 4) := 44 + (4 × (4 + 4) + 4/4) := (4 + 4)/4 + (4 × (4 × 4 + 44 )) := (5 − 5/5) × (5 × 55 − 5) := 5 + ((5 − 5/5) × (5 × 55 − 5)) := 55 × (5 × 5 − 5) − 5 − 5 := 6 × 6 × (6 × 6 − 6) := 6 + ((6 × 6 × (6 × 6 − 6)) − 6/6) := 66 + (((6 + 6)/6)(66−6)/6) := ((7 + 7)/7) + 77 × (7 + 7) := 7 + 77 × (7 + 7) := 77 × (7 + 7) + (77 + 7)/7 := (8 × (8 × (8 + 8) + 8)) − 8 := 8 + ((8 × (8 × (8 + 8) + 8)) − (88/8)) := (8 + 8)/8 + (8 × (8 × (8 + 8) + 8)) := 9 × 9 + 999 := (9999 + 9)/9 − (9 + 9 + 9) := ((99 × 99) + 9)/9 4 Ï 1081 := 1 + ((11 − 1) × (111 − 1 − 1 − 1)) Ï 1086 := 1111 − (1 + ((1 + 1) × (1 + 11))) Ï 1091 := 1 + 1 + (11 × (1 + 1 + 1))1+1 := 2 + (222/2 + (2 × 222 )) := ((22/2 + 22)2 ) − 2/2 − 2 := 2 + ((22/2 + 22)2 ) := 33 × 33 − 3 := 3 + (33 × 33 − 3/3) := 3 + (33 × 33 − 33/3) 4 4 := 4 + (((4 − 44)/4) + 4 × 4 ) 4 4 := 4 × 4 + (4 − 4 − 4)/4 := 4 + (((44 − 4)/4) + 4 × 44 ) := 5555/5 − (5 × 5 + 5) := 5555/5 − 5 × 5 := 5 + (5555/5 − 5 × 5) := 6/6 + (6 × 6 × (6 × 6 − 6)) := 6 + (6 × 6 × (6 × 6 − 6)) := 66/6 + (6 × 6 × (6 × 6 − 6)) := 77 × (7 + 7) + (7 + 7 + 7)/7 := 7 + (77 × (7 + 7) + 7/7) := 7 + ((77 × (7 + 7) − 7/7) + 7) := 8/8 + ((8 × (8 × (8 + 8) + 8)) − 8) := (8 × (8 × (8 + 8) + 8)) − (8 + 8)/8 := 88/8 + ((8 × (8 × (8 + 8) + 8)) − 8) := 9/9 + (999 + 9 × 9) := ((99 × 99) − (9 + 9 + 9))/9 := (((99 × 99) + 9) + 9)/9 Ï 1082 := 1 + (1 + ((11 − 1) × (111 − 1 − 1 − 1))) 2 Ï 1087 := 1111 − (1 + 1) × (1 + 11) Ï 1092 := 1 + 1 + 1 + (11 × (1 + 1 + 1))1+1 := 2 + ((2 × ((22 + 2/2) )) + 22) := ((22/2 + 22)2 ) − 2 := (22 + 2 + 2) × ((2 × 22) − 2) := 33 × 33 − ((3/3 + 3) + 3) := 3/3 + (33 × 33 − 3) := 3 + 33 × 33 := 44 + (4 × (44 + 4) − (4 + 4)/4) := 4 × 44 + ((44 − 4)/4) := 4 + (4 × (4 × 4 + 44 )) := 5 + (55 − (((5 + 5)/5)55/5 )) := (5555 + 5)/5 − 5 × 5 := 5 + ((5555 + 5)/5 − 5 × 5) := (6 + 6)/6 + (6 × 6 × (6 × 6 − 6)) := 6 + ((6 × 6 × (6 × 6 − 6)) + 6/6) := 6 + ((6 × 6 × (6 × 6 − 6)) + 6) := 77/7 + (77 × (7 + 7) − 7) := 7 + (77 × (7 + 7) + ((7 + 7)/7)) := 7 + (77 × (7 + 7) + 7) := (8 + 8)/8 + ((8 × (8 × (8 + 8) + 8)) − 8) := (8 × (8 × (8 + 8) + 8)) − 8/8 := ((8888 − 88)/8) − 8 := 9 × 9 + (((9 + 9)/9) + 999) := ((99 × 99) − (9 + 9))/9 := ((9999 − 9)/9) − (9 + 9) 82 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1093 := 1111 − (1 + 1) × (11 − 1 − 1) 2 Ï 1103 := 1 + (1 + (1 + (1111 − 11))) Ï 1098 := 1111 − 1 − 1 − 11 := 2 + (((22/2 + 22) ) + 2) := (22 × ((2 × (22 + 2)) + 2)) − 2 := (2222/2) − 2 × (2 + 2) := 3 + (33 × 33 + 3/3) := 3 × (333 + 33) := 3 + (33 × 33 + 33/3) := 4 + ((4444 − 4)/4 − 4 × 4) := 4444/4 − 4 − 4 4 := 4 + ((4 × (4 × 4 + 4 )) + 4/4) := 55 × (5 × 5 − 5) − ((5 + 5)/5 + 5) := 55 × (5 × 5 − 5) − (5 + 5)/5 := 5 + (55 × (5 × 5 − 5) − ((5 + 5)/5)) := (6666/6) − 6 − 6 − 6 := 666 + (6 × (66 + 6)) := ((6666 − (6 + 6))/6) − 6 := 7 + ((77 × (7 + 7) + 7/7) + 7) := (7777 + 7)/7 − (7 + 7) := (7777 − 7)/7 − 7 := ((8888 − (8 + 8))/8) − 8 − 8 := 8 + ((8 × (8 × (8 + 8) + 8)) + ((8 + 8)/8)) := 8888/8 − 8 := 9999/9 − (9 + 9) := 99 + 999 := (9999 + 9)/9 − 9 Ï 1094 := 1 + (1111 − (1 + 1) × (11 − 1 − 1)) Ï 1104 := 1 + (1 + (1 + (1 + (1111 − 11)))) Ï 1099 := 1111 − 1 − 11 := (2222 − (22 + 2))/2 := (22 + 2) × ((2 × 22) + 2) := 3 + ((33 × 33 − 3/3) + 3) := 3 × 3 + (33 × 33 + 3/3) := 3 + (33 × 33 + 3 × 3 + 3) := (4444 − 4)/4 − 4 × 4 := 4 + (4444/4 − 4 × 4) := 4 × ((4 × 4 + 44 ) + 4) := 55 × (5 × 5 − 5) − (5/5 + 5) := 55 × (5 × 5 − 5) − 5/5 := 5 + (55 × (5 × 5 − 5) − 5/5) := ((6666 − 66)/6) − 6 := (6666/6) − 6 − 6 := ((6666 − 6)/6) − 6 := 7 + ((77 × (7 + 7) + ((7 + 7)/7)) + 7) := 7 + ((77 × (7 + 7) + 7) + 7) := 7777/7 − 7 := (8888 − 8)/8 − 8 − 8 := 88/8 + (8 × (8 × (8 + 8) + 8)) := 8 + ((8 × (8 × (8 + 8) + 8)) + 8) := (9999 + 9)/9 − (9 + 9) := 9 + (((99 × 99) + 9)/9) := (((9999 + 9) + 9)/9) − 9 := 2 + ((22 + 2 + 2) × ((2 × 22) − 2)) Ï 1095 := 1111 − ((1 + 1)1+1+1+1 ) := (2222/2) − 2 Ï 1100 := 1111 − 11 2+2 := 3 + (33 × 33 + 3) Ï 1105 := 1111 − ((1 + 1) × (1 + 1 + 1)) := 22 × ((2 × (22 + 2)) + 2) := (2222/2) − (2 + 2 + 2) := 33/3 + 33 × 33 := 3333/3 − (3 + 3) 4 := 4444/4 − 4 × 4 := 44 + 4 × (4 + 4 + 4) := 4 × 44 + (4 − 4/4)4 := 55 × (5 × 5 − 5) − 5 := 55 × (5 × 5 − 5) := 5 + 55 × (5 × 5 − 5) := 6 + (66 × 66/(6 − ((6 + 6)/6))) := (6666 − 66)/6 := (6666/6) − 6 := 7 + (77 × (7 + 7) + ((77 − 7)/7)) := (7777 − 77)/7 := (7777 + 7)/7 − 7 := 8888/8 − 8 − 8 := (8888 − 88)/8 := (8/8 + 8 + 8) × (8/8 + 8 × 8) := 9 + (((99 × 99) − (9 + 9 + 9))/9) := 99/9 × (9/9 + 99) := 9 × 9 + (((9 + 9)/9)9/9+9 ) Ï 1096 := 1111 − (1 + 1 + 1 + 1 + 11) Ï 1101 := 1 + (1111 − 11) Ï 1106 := 1111 − 1 − 1 − 1 − 1 − 1 := 2 × (22+2+2 + 222 ) := ((2222 − 22) + 2)/2 := 2 + ((22 + 2) × ((2 × 22) + 2)) := 3 + ((33 × 33 + 3/3) + 3) := 3 + (33 × 33 + 3 × 3) := ((3333 + 3)/3) − (3 + 3) := 4 + ((4 × (4 × 4 + 44 )) + 4) := 4 × 44 + ((4 − 4/4)4 − 4) := (4444 − 4)/4 − 4 := 5/5 + (55 × (5 × 5 − 5) − 5) := 5/5 + 55 × (5 × 5 − 5) := 5555/5 − 5 := ((6666 − 66) + 6)/6 := (6666 + 6)/6 − 6 (66−6)/6) := 6 + ((((6 + 6)/6) + 66) := 7 + (77 × (7 + 7) + (77/7)) := (7777 − 77 + 7)/7 := 77 + 7 × 7 × (7 + 7 + 7) := 8 + (8 × (8 × (8 + 8) + 8)) := ((8888 − (8 + 8))/8) − 8 := ((8888 + 88)/8) − 8 − 8 := 9 + (((99 × 99) − (9 + 9))/9) := ((9999 − 9)/9) − 9 := 9 + ((((99 × 99) − 9)/9) + 9) Ï 1097 := 1111 − 1 − 1 − 1 − 11 Ï 1102 := 1 + (1 + (1111 − 11)) Ï 1107 := 1111 − 1 − 1 − 1 − 1 := 2 + ((2222/2) − 22+2 ) := 2 + (22 × ((2 × (22 + 2)) + 2)) := (2222/2) − 2 − 2 := 3 × 3 + (33 × 33 − 3/3) := 3333/3 − 3 × 3 := 3 × ((333 + 33) + 3) := 4 + (((4 × (4 × 4 + 4 )) + 4/4) + 4) := (4444 − 4)/4 − 4 − 4 := 4444/4 − 4 := (5 + 5)/5 + (55 × (5 × 5 − 5) − 5) := (5 + 5)/5 + 55 × (5 × 5 − 5) := (5555 + 5)/5 − 5 4 := 6 + ((6 × 6 × (6 × 6 − 6)) + (66/6)) := ((6666 − (6 + 6 + 6))/6) − 6 := (((6666 + 6) + 6)/6) − 6 := 7777/7 − (7 + 7) := ((7777 − 7 − 7)/7) − 7 := 7 + ((7777 − 77)/7) := 8 + ((8 × (8 × (8 + 8) + 8)) + 8/8) := (8888 − 8)/8 − 8 := 8 + ((8 × (8 × (8 + 8) + 8)) + (88/8)) := 9 + (((99 × 99) − 9)/9) := 9999/9 − 9 := 9 + (999 + 99) 83 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1118 := (11 − 1) × (1 + 111) − 1 − 1 Ï 1113 := 1 + 1 + 1111 Ï 1108 := 1111 − 1 − 1 − 1 2 := 2 × (((22 + 2) ) − 22) := 2 + (2222/2) := 2 + ((((2222 + 2)/2) + 2) + 2) := 3333/3 − 3 := 3 + ((3333 − 3)/3) := 3 + ((3333 + 3)/3 + 3) := 4 + (4 × ((4 × 4 + 4 ) + 4)) := ((4444 + 4) + 4)/4 := 4 + ((4444 − 4)/4 + 4) := (5 + 5)/5 × (555 − 5/5) := ((5555 + 5) + 5)/5 := 5 + (5555 + 5 + 5)/5 := (6666 − (6 + 6 + 6))/6 := ((6666 + 6) + 6)/6 := 6 + (6666 + 6)/6 := (7777 − 7 − 7 − 7)/7 := 7 × 7 × 7 + (777 − 7) := 7 + 7777/7 := 8 + ((8888 − 88)/8) := ((8888 + 8) + 8)/8 := 8 + (8888 − 8)/8 := 9 + ((((99 × 99) + 9)/9) + 9) := ((9999 + 9) + 9)/9 := 9 + ((9999 − (9 + 9))/9) 4 Ï 1109 := 1111 − 1 − 1 Ï 1119 := (11 − 1) × (1 + 111) − 1 Ï 1114 := 1 + 1 + 1 + 1111 := (2222/2) − 2 := 2 + ((2222 + 2)/2) := 2 × (2 + 2) + (2222/2) := ((3333 + 3)/3) − 3 := 3 + 3333/3 := 3 + (33 × 33 + 33 ) := (4444 − (4 + 4))/4 := 4 + (4444 − 4)/4 := 4 + (4444/4 + 4) := (5555 − (5 + 5))/5 := 5 + ((5555 − (5 + 5))/5) := (((5 + 5) × (555 + 5)) − 5)/5 := (6666 − (6 + 6))/6 := (((6666 + 6) + 6) + 6)/6 := 6 + (((6666 + 6) + 6)/6) := (7777 − 7 − 7)/7 := ((7777 + 7 + 7) + 7)/7 := 7 + (7777 + 7)/7 := (8888 − (8 + 8))/8 := (((8888 + 8) + 8) + 8)/8 := 8 + 8888/8 := (9999 − (9 + 9))/9 := (((9999 + 9) + 9) + 9)/9 := 9 + ((9999 − 9)/9) Ï 1110 := 1111 − 1 Ï 1115 := 1 + 1 + 1 + 1 + 1111 Ï 1120 := (11 − 1) × (1 + 111) := (2222 − 2)/2 := 2 + ((2222/2) + 2) := 2 × (((22 + 2)2 ) − 22+2 ) := (3333 − 3)/3 := 3 + ((3333 + 3)/3) := 3 × 3 + 3333/3 := (4444 − 4)/4 := 4 + 4444/4 := 4 × (((4 × 4 + 44 ) + 4) + 4) := (5 + 5) × 555/5 := 5 + (555 + 555) := (5 + 5) × (555 + 5)/5 := (6666 − 6)/6 := 6 + ((6666 − (6 + 6))/6) := 6 + ((((6666 + 6) + 6) + 6)/6) := (7777 − 7)/7 := ((7777 + 77)/7) − 7 := 7 × 7 × 7 + 777 := (8888 − 8)/8 := (8/((8 + 8)/8)) + 8888/8 := 8 + (8 × 8 × (8 + 8) + 88) := (9999 − 9)/9 := 9 + (((((99 × 99) − 9)/9) + 9) + 9) := 9 + 9999/9 Ï 1111 := 1111 := 2222/2 Ï 1116 := 1 + 1 + 1 + 1 + 1 + 1111 := 2 + (((2222 + 2)/2) + 2) 3 Ï 1121 := 11 + 1111 − 1 := ((2222 − 2) + 22)/2 := 3333/3 := 3 + 33 × 33 := 3 × 3 + ((3333 + 3)/3) := 4444/4 := 4 + (4444 + 4)/4 := 4 × (44 + 4) + (4 − 4/4)4 := 5555/5 := 5 + 5555/5 := 5 + (5555/5 + 5) := 6666/6 := 6 × (6 × (6 × 6 − 6) + 6) := (66 × (66/6 + 6)) − 6/6 := 7777/7 := 7 + ((7777 − 7 − 7)/7) := 7/7 + (7 × 7 × 7 + 777) := 8888/8 := 8 + (((8888 − 88)/8) + 8) := 8 + (((8888 + 8) + 8)/8) := 9999/9 := 9 + (999 + 99 + 9) := 9 + (9999 + 9)/9 Ï 1112 := 1 + 1111 Ï 1117 := 1111 + (1 + 1) × (1 + 1 + 1) Ï 1122 := 11 + 1111 := (2222 + 2)/2 := 2 + (((2222/2) + 2) + 2) := (2222 + 22)/2 := (3333 + 3)/3 := 3 + 3333/3 + 3 := 33 + 33 × 33 := (4444 + 4)/4 := 4 + (((4444 + 4) + 4)/4) := (4444 + 44)/4 := (5555 + 5)/5 := 5 + (5555 + 5)/5 := (5555 + 55)/5 := (6666 + 6)/6 := 6 + (6666/6) := 66 × (66/6 + 6) := (7777 + 7)/7 := 7 + (7777 − 7)/7 := (7777 + 77)/7 := 88 + 8 × 8 × (8 + 8) := 8 + ((8888 − (8 + 8))/8) := (8888 + 88)/8 := (9999 + 9)/9 := 9 + (((((99 × 99) + 9)/9) + 9) + 9) := (9999 + 99)/9 84 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1128 := (11 − 1) × (1 + 1 + 111) − 1 − 1 Ï 1123 := 1 + 11 + 1111 2 Ï 1133 := 11 + 11 + 1111 := ((2222 + 22) + 2)/2 := (2 × ((22 + 2) )) − (22 + 2) := 22 + (2222/2) := 3 + (3333/3 + 3 × 3) := 3 + ((3 × 3 + 3 + 3)3 /3) := ((33/3)3 ) − 33 × (3 + 3) := 4 + (4444/4 + 4 + 4) := 4 × 4 + (4444 + 4)/4 := 44 + ((4 × (4 × 4 + 44 )) + 4/4) := ((5555 + 55) + 5)/5 := 5 + (((5555 + 55) + 5)/5) := ((5555 + 55) + 55)/5 := 6 + ((6666/6) + 6) := 6 + (66 × (66/6 + 6)) := 66/6 + (66 × (66/6 + 6)) := (7777 + 77 + 7)/7 := 7/7 + (77 × (7 + 7) + 7 × 7) := 7 + (((7777 + 7)/7 + 7) + 7) := ((8888 + 88) + 8)/8 := 8 × (8 × 8 + 88) − 88 := 88/8 × (888/8 − 8) := 9 + (((9999 − 9)/9) + 9) := (9 × ((99 + 9 + 9) + 9)) − 9/9 9/9+9 := 99 + (((9 + 9)/9) ) Ï 1124 := 1 + 1 + 11 + 1111 Ï 1129 := (11 − 1) × (1 + 1 + 111) − 1 := 2 + ((2222 + 22)/2) := 2 + ((2222/2) + 2 3 2+2 ) Ï 1134 := 1 + 11 + 11 + 1111 := 22 + ((2222 + 2)/2) := ((3 × 3 + 3 + 3) − 3)/3 := 3 + (((3 × 3 + 3 + 3) + 3)/3) := 33 × (3 × 3 + 33) := 4 + (4 × (((4 × 4 + 44 ) + 4) + 4)) := 4 × 4 + (((4444 + 4) + 4)/4) := 4 × 44 + (444 − 4)/4 := (5 − 5/5)5 + 5 × (5 × 5 − 5) := 5 + ((5 − 5/5)5 + 5 × (5 × 5 − 5)) := 55 + ((5 − 5/5)5 + 55) := 6 + ((66 × (66/6 + 6)) + 6) 3 := 6 + ((6666 + 6)/6 + 6) := 6 + (((6666/6) + 6) + 6) := 7 + ((7777 − 7)/7 + 7) := 7 + ((7777 + 77)/7) := 7 + (77 × (7 + 7) + 7 × 7) := (((8888 + 88) + 8) + 8)/8 := 8 + ((((8888 + 8) + 8)/8) + 8) := 8 + (((8888 − 8)/8 + 8) + 8) := ((9 × 999) + 9/9)/(9 − 9/9) := 9 + (9999/9 + 9) := 9 × ((99 + 9 + 9) + 9) Ï 1130 := (11 − 1) × (1 + 1 + 111) Ï 1125 := 1 + 1 + 1 + 11 + 1111 := 2 + (((2222 + 22) + 2)/2) 3 := (2 × ((22 + 2)2 )) − 22 Ï 1135 := 111 + (1 + 1)11−1 := 2 + ((2222/2) + 22) := (3 × 3 + 3 + 3) /3 := 3 + ((((3 × 3 + 3 + 3) − 3)/3) + 3) := 33 + (3333/3 − 3) := 4 + (4 × (44 + 4) + (4 − 4/4)4 ) := 4 + ((4444 + 44)/4 + 4) := 4 × 44 + 444/4 3 := 5 + (5 × 5 × (55 − 5 − 5)) := 5 + ((5 × 5 × (55 − 5 − 5)) + 5) := 6 × 66 + ((6 × 6/(6 + 6)) ) := 6 + (((6666 + 6)/6 + 6) + 6) := 6 + ((((6666/6) + 6) + 6) + 6) := 7 + (7777/7 + 7) := 7 + ((7777 + 77 + 7)/7) := 7 + ((77 × (7 + 7) + 7 × 7) + 7/7) := 8 + (((8888 − (8 + 8))/8) + 8) := 8 + ((8888 + 88)/8) := 8 + ((8888/8 + 8) + 8) := (9 × ((99 + 9 + 9) + 9)) − 9 := 9 + ((9999 + 9)/9 + 9) := 9/9 + (9 × ((99 + 9 + 9) + 9)) := 5 × 5 × (55 − 5 − 5) 6 Ï 1126 := 1 + 1 + 1 + 1 + 11 + 1111 Ï 1131 := 1 + (11 − 1) × (1 + 1 + 111) Ï 1136 := 1 + 111 + (1 + 1)11−1 := (2 × (((22 + 2)2 ) − 2)) − 22 := 22 + ((2222/2) − 2) := 2 × (((22 + 2)2 ) − 2 × (2 + 2)) := ((3 × 3 + 3 + 3)3 + 3)/3 := (33 × (3 × 3 + 33)) − 3 := ((3 × 3 + 3 + 3)3 + 33)/3 := 4 + (4444 + 44)/4 := 4 + (4444/4 + 4 × 4) := 4 × ((44 − 4 × 4) + 44) := 5 + ((5555/5 + 5) + 5) := 5 × 5 + (5555/5 − 5) := 5 × 5 + 5555/5 6 := 6 + (((((6666 + 6) + 6) + 6)/6) + 6) := 6 + (((6 × 6/(6 + 6)) ) + 6 × 66) := 6 × 6 + ((6666 − 66)/6) := 7 + ((7777 + 7)/7 + 7) := 7 + (((7777 − 7)/7 + 7) + 7) := 7 + (((7777 + 77)/7) + 7) := 8 + ((8888 − 8)/8 + 8) := 8 + (((8888 + 88) + 8)/8) := (8 + 8) × ((8 × 8 − 8/8) + 8) := 9/9 + ((9 × ((99 + 9 + 9) + 9)) − 9) := 9 + ((9999 + 99)/9) := (9 + 9)/9 + (9 × ((99 + 9 + 9) + 9)) Ï 1127 := 1111 + (1 + 1)1+1+1+1 := 22+2 + (2222/2) Ï 1137 := 1 + 1 + 111 + (1 + 1)11−1 Ï 1132 := 11 + 11 + 1111 − 1 := 2 + ((2 × ((22 + 2)2 )) − 22) 3 := 2 + (((2222/2) + 22) + 2) := 3 + (((3 × 3 + 3 + 3)3 − 3)/3) := 3 + ((3 × 3 + 3 + 3) + 3)/3 + 3 := 3 + (33 × (3 × 3 + 33)) := 4 × 4 + 4444/4 := 44 + (4 × (4 × 4 + 44 )) := 44 + ((4/4 + 4)4 + 44 ) := 5 + ((5555 + 55)/5) := 5 + (((5555 + 55)/5) + 5) := 5 × 5 + (5555 + 5)/5 := 6 + ((66 × (66/6 + 6)) − 6/6) := ((66 − 6)/6) + (66 × (66/6 + 6)) := 6 + ((((6 × 6/(6 + 6))6 ) + 6 × 66) + 6) := 7 × ((77 + 77) + 7) := 7 + ((7777/7 + 7) + 7) := (77/7 × (777/7 − 7)) − 7 := 8 + (8888/8 + 8) := ((88 × (888/8 − 8)) − 8)/8 := 8/8 + ((8 + 8) × ((8 × 8 − 8/8) + 8)) := 9 + (((9999 − (9 + 9))/9) + 9) 9/9+9 := 9 + ((((9 + 9)/9) 85 ) + 99) := 9 + ((((9999 − 9)/9) + 9) + 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1138 := 1111 + (1 + 1 + 1)1+1+1 Ï 1143 := 1111 + 11 × (1 + 1 + 1) − 1 Ï 1148 := 1111 + (111/(1 + 1 + 1)) := 2 + (2 × (((22 + 2) ) − 2 × (2 + 2))) := 2 + ((2 × ((22 + 2) )) − 22/2) := 2 × (((22 + 2)2 ) − 2) := 33 + 3333/3 := 3 × ((3 × (3 × 33 + 33 )) + 3) := 3 + (((3333 + 3)/3) + 33) := 4 + ((444 − 4)/4 + 4 × 44 ) := 4 × (4 + 4) + 4444/4 := 444 + 4 × 4 × 44 := 5 × 5 + (5555 + 5 + 5)/5 := ((5 + 5)/5)5 + 5555/5 := 5 × 5 × 5 + ((5 − 5/5)5 − 5/5) := ((6 + 6)/6)6 + ((6 × 6 × (6 × 6 − 6)) − 6) := 6 × 6 + ((((6666 + 6) + 6)/6) − 6) := 6 × 6 + (6666 + 6)/6 := 7 × 7 + (77 × (7 + 7) + (77/7)) := ((77 × (777/7 − 7)) − 7)/7 := 77 + (77 × (7 + 7) − 7) := 8 + (((8888 + 88)/8) + 8) := (8/8 + 8) × (8 × (8 + 8) − 8/8) := 8 × 88 + 888/((8 + 8)/8) := 9 + ((9999/9 + 9) + 9) := 9 + (9 × ((99 + 9 + 9) + 9)) := 9 + ((((9999 + 9)/9 + 9) + 9) + 9) 2 Ï 1139 := (11 − 1) × (1 + 1 + 1 + 111) − 1 2 Ï 1144 := 1111 + 11 × (1 + 1 + 1) Ï 1149 := 1 + (1111 + (111/(1 + 1 + 1))) := (2 × ((22 + 2)2 )) − (22/2 + 2) := 2 × (22 × (22 + 2 + 2)) := 2/2 + (2 × (((22 + 2)2 ) − 2)) := 33 + ((3333 + 3)/3) := 33 + 3333/3 := 33 + (33 × 33 + 33) := 4 + (444/4 + 4 × 44 ) := 44 + (444 + 444) := 44 + ((4 − 4/4)4 + 4 × 44 ) := ((55 − 555) + 55 )/5 := 5 × 5 × 5 + ((5 − 5/5)5 − 5) := 5 × 5 × 5 + (5 − 5/5)5 := (66/6 + 6) × (66 + 6/6) := 66/6 × (((666 − 6)/6) − 6) := 6 × 6 + (((6666 + 6) + 6)/6) := 7 + (((7777/7 + 7) + 7) + 7) := 77/7 × (777/7 − 7) := 7/7 + ((77 × (7 + 7) − 7) + 77) := 8 + ((((8888 + 88) + 8)/8) + 8) := (8 + 8) × (8 × 8 + 8) − 8 := 8 + ((8 + 8) × (8 × 8 + 8) − (88/8)) := 9 + (((9999 + 9)/9 + 9) + 9) := 9 + ((9 × ((99 + 9 + 9) + 9)) + 9/9) := 9 + ((((9999 + 99)/9) + 9) + 9) Ï 1140 := (11 − 1) × (1 + 1 + 1 + 111) Ï 1145 := 111+1 + (1 + 1)11−1 Ï 1150 := (1 + 1) × ((((1 + 1) × (1 + 11))1+1 ) − 1) := 2 × (((22 + 2)2 ) − (2 + 2 + 2)) := 2/2 + (2 × (22 × (22 + 2 + 2))) := (2 × ((22 + 2)2 )) − 2 := 3 + ((33 × (3 × 3 + 33)) + 3) := 33 + ((3333 + 3)/3) := 3 + ((3333/3 + 33) + 3) := 4 + (44 × (4 × 4 + 4) + 44 ) := 4 + (((4 + 4) × 444 + 4)/4) := 44 + ((4444 − 4)/4 − 4) := (5 + 5) × (5 × 5 × 5 − (55/5)) := (5 + 5) × (5 × 5 × 5 − 5) − 55 := 5 × (5 × (55 − 5 − 5) + 5) := 66 + ((6 × 6 × (6 × 6 − 6)) − 6) := 6 + ((66/6 + 6) × (66 + 6/6)) := ((6 × 6 − ((6 + 6)/6))(6+6)/6 ) − 6 := (7/7 + 7 + 7) × (77 − 7/7) := (((7 + 7)/7 + 7) × ((7 + 7)/7)7 ) − 7 := 7 + (((77 × (777/7 − 7)) − 7)/7) := ((88 + 8)/8) × (88 − 8/8 + 8) := 8/8 + ((8 + 8) × (8 × 8 + 8) − 8) := (8 + 8) × (8 × 8 + 8) − (8 + 8)/8 := 9 + (((9999 + 99)/9) + 9) := 99/9 + (9 × ((99 + 9 + 9) + 9)) := 999 + (9 × (9 + 9) − (99/9)) Ï 1141 := 1 + (11 − 1) × (1 + 1 + 1 + 111) 4 Ï 1146 := 1 + (111+1 + (1 + 1)11−1 ) Ï 1151 := ((1 + 1) × (((1 + 1) × (1 + 11))1+1 )) − 1 := (2 × ((22 + 2)2 )) − 22/2 := (2 × (((22 + 2)2 ) − 2)) − 2 := (2 × ((22 + 2)2 )) − 2/2 := 3 + (3333/3 + 33 ) := 3333 − (3 × 33+3 ) := 33 + (((3 × 3 + 3 + 3)3 − 3)/3) := 4 + (((4/4 + 4)4 + 44 ) + 44 ) := 4 × 44 + ((444 + 44)/4) := 44 + (4444/4 − 4) := 5 + (5555/5 + 5 × 5) := 5 + ((5555/5 + 5 × 5) + 5) := 5/5 + (5 × (5 × (55 − 5 − 5) + 5)) := 6 × 6 + ((6666/6) − 6) := 66 + (6 × 6 × (6 × 6 − 6)) := (66 × (6 + 6 + 6)) − (6 × 6 + 6/6) := 7 + ((77 × (7 + 7) + 7 × 7) + 7) := 7 × 7 + (7777/7 − (7 + 7)) := 7 + (77/7 × (777/7 − 7)) := (8 + 8) × (8 × 8 + 8) − 88/8 := (8 + 8)/8 + ((8 + 8) × (8 × 8 + 8) − 8) := (8 + 8) × (8 × 8 + 8) − 8/8 := (9 − ((9 + 9)/9)) × (9 × (9 + 9) + 9/9) := 9 + (((((9999 − 9)/9) + 9) + 9) + 9) := 99 + ((9 × (99 + 9 + 9)) − 9/9) Ï 1142 := 1 + 1 + (11 − 1) × (1 + 1 + 1 + 111) Ï 1147 := 1111 + ((1 + 1 + 1) × (1 + 11)) Ï 1152 := (1 + 1) × (((1 + 1) × (1 + 11))1+1 ) := 2 × ((22 + 2)2 ) := (2 × (22 × (22 + 2 + 2))) − 2 := (2 × (((22 + 2)2 ) − 2)) − 2/2 := 3 + (((3333 + 3)/3) + 33 ) := 3 + (3333/3 + 33) := 3 × ((3 + 3) × ((3/3 + 3)3 )) := 4 × (4 + 4) + (4444 − 4)/4 := 4 + (4444/4 + 4 × (4 + 4)) := 4 × (4 × (4 + 4) + 44 ) := 5 + ((5555 + 5)/5 + 5 × 5) := 5 × 5 + ((5555 + 55)/5) := ((5 + 5)/5)5 × (55/5 + 5 × 5) := 6 × 6 + ((6666 + 6)/6 − 6) := 6 × 6 + (6666/6) := 6 × ((6 × (6 × 6 − 6) + 6) + 6) := 7 + (((77 × (7 + 7) + 7 × 7) + 7/7) + 7) := 7 + ((7/7 + 7 + 7) × (77 − 7/7)) := ((7 + 7)/7 + 7) × ((7 + 7)/7)7 := (8 − 88)/8 + (8 + 8) × (8 × 8 + 8) := 88/8 + ((8 + 8) × ((8 × 8 − 8/8) + 8)) := (8 + 8) × (8 × 8 + 8) := 9 + ((9 × ((99 + 9 + 9) + 9)) − 9/9) := 9 + (((9999/9 + 9) + 9) + 9) := 99 + (9 × (99 + 9 + 9)) 86 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1153 := 1 + ((1 + 1) × (((1 + 1) × (1 + 11))1+1 )) Ï 1158 := 1 + (1 + ((1 + 11 × (1 + 1 + 1))1+1 )) Ï 1163 := 11 + ((1 + 1) × (((1 + 1) × (1 + 11))1+1 )) := 2/2 + (2 × ((22 + 2)2 )) := 2 + (2 × (((22 + 2)2 ) + 2)) := 22/2 + (2 × ((22 + 2)2 )) := ((3/3 + 3)3 ) + 33 × 33 := 3 + (33 × ((33 − 3/3) + 3)) := 3 + (3 − 3/3)3×3 + 3 × (3 + 3)3 := 4/4 + (4 × (4 × (4 + 4) + 44 )) := 4 + ((4444 − 4)/4 + 44) := 4 + ((4444/4 + 44) + 4) 5 := 5 + (((5 − 5/5)5 − 5/5) + 5 × 5 × 5) := 555 + ((5 − (55 + 55))/5) := 55 + ((5 + 5)/5 × (555 − 5/5)) := 6 + ((6666/6) + 6 × 6) := 6 + (6 × ((6 × (6 × 6 − 6) + 6) + 6)) := 66/6 + (6 × ((6 × (6 × 6 − 6) + 6) + 6)) := 7 × 7 + (7777/7 − 7) := 7 × 7 + ((7777 − 7 − 7)/7) := 7 + ((77 × (7 + 7) + 77) + 7/7) := 8/8 + (8 + 8) × (8 × 8 + 8) := 8 + ((8 + 8) × (8 × 8 + 8) − ((8 + 8)/8)) := 88/8 + (8 + 8) × (8 × 8 + 8) := 9/9 + ((9 × (99 + 9 + 9)) + 99) := 9 × 9 + (((99 × 99) − (99 + 9))/9) := (9 + 9)/9 + (999 + 9 × (9 + 9)) Ï 1154 := (1 + 1) × (1 + (((1 + 1) × (1 + 11))1+1 )) Ï 1159 := 1 + (1 + (1 + ((1 + 11 × (1 + 1 + 1))1+1 ))) 2 Ï 1164 := (1 + 11) × (111 − (1 + (1 + 1 + 11))) := 2 + (2 × ((22 + 2) )) := 2 + ((2 × (((22 + 2) ) + 2)) + 2/2) := 2 × (((((22 + 2)2 ) + 2) + 2) + 2) := (3 − 3/3) × (((3 × 3 + 3)3 + 3)/3) := 3 + ((3/3 + 33)3−3/3 ) := 3 + ((33 × (33 + 3)) − 33 ) := 44 + (4444 − 4)/4 := 4 + (4444/4 + 44) := 444 + (4 × (4 × 44 + 4)) 2 5 5 := 5 + ((5 − 5/5) + 5 × 5 × 5) := 5 + (((5 − 5/5) + 5 × 5 × 5) + 5) := 55 + ((5555 − (5 + 5))/5) := 6 + ((6666 + 6)/6 + 6 × 6) := 6 + (((6666/6) + 6 × 6) + 6) := 6 × 6 × 6 × 6 − (66 + 66) := 77 + (77 × (7 + 7) − 7/7) := 7 × 7 + (7777 − 7)/7 := (77 + 7)/7 × (7 × (7 + 7) − 7/7) := (8 + 8)/8 + (8 + 8) × (8 × 8 + 8) := 8 + ((8 + 8) × (8 × 8 + 8) − 8/8) := 8 × 8 + ((8888 − 88)/8) := 9 + ((9 × ((99 + 9 + 9) + 9)) + (99/9)) := 9 × 9 + ((99/9) × (99 − 9/9)) := 999/9 + (9 × (99 + 9 + 9)) Ï 1155 := ((1 + 11 × (1 + 1 + 1))1+1 ) − 1 Ï 1160 := (11 − 1) × (1 + 1 + 1 + 1 + 1 + 111) Ï 1165 := 1111 + ((111 − 1)/(1 + 1) − 1) := 2 + ((2 × ((22 + 2) )) + 2/2) := 2 × ((((22 + 2) ) + 2) + 2) := 2 + ((2 × ((22 + 2)2 )) + 22/2) := 33 × ((33 − 3/3) + 3) := 33 × 33 + (((3 + 3)3 − 3)/3) := 33 + (3333/3 + 33 ) := 44 + 4444/4 := 4 + ((4 × (4 × (4 + 4) + 44 )) + 4) := 4 + ((44 − 4/4) × (44/4 + 4 × 4)) := 55 + 55 × (5 × 5 − 5) := (5 + 5) × (555/5 + 5) := 5 + ((5 + 5) × (555/5 + 5)) 2 2 := 66/6 × (666/6 − 6) := 6 + (((6666 + 6)/6 + 6 × 6) + 6) := 66 + ((6666/6) − (6 + 6)) := 77 + 77 × (7 + 7) := 7 × 7 + 7777/7 := (7 + 7) × (77 + 7) − 77/7 := 88/8 + ((8 + 8) × (8 × 8 + 8) − 8) := 8 + (8 + 8) × (8 × 8 + 8) := 8 + ((8/8 + 88) × (88 + 8 + 8)/8) := 99/9 × ((99 − ((9 + 9 + 9)/9)) + 9) := 999 + (9 × (9 + 9) − 9/9) := 9 + (((999/9 − 9)(9+9)/9 )/9) Ï 1156 := (1 + 11 × (1 + 1 + 1))1+1 2 := 2 × (((22 + 2) ) + 2) Ï 1161 := 1111 + ((11 − 1)1+1 /(1 + 1)) Ï 1166 := 11 × (111 − (1 + (1 + 1 + 1 + 1))) := 2/2 + (2 × ((((22 + 2) ) + 2) + 2)) := 2 + (2 × (((((22 + 2)2 ) + 2) + 2) + 2)) := (33 × (33 + 3)) − 33 := ((33/3)3 ) − ((3 + 3) × 33 + 3) := 4 + (4 × (4 × (4 + 4) + 4 )) := (44 − 4/4) × (44/4 + 4 × 4) := (44 × (44 − 44))/(4 + 4) := 55 + (55 × (5 × 5 − 5) + 5/5) := 55 + (5555/5 − 5) := 55 + 5555/5 2 := (3/3 + 33)3−3/3 4 (6+6)/6 := (6 × 6 − ((6 + 6)/6)) := 6 + ((66/6) × (666/6 − 6)) := 66 + ((6666 − 66)/6) := 7/7 + (77 × (7 + 7) + 77) := 7 × 7 + (7777 + 7)/7 := 7 + ((7777 − 7)/7 + 7 × 7) := (8/((8 + 8)/8)) + (8 + 8) × (8 × 8 + 8) := 8 + ((8 + 8) × (8 × 8 + 8) + 8/8) := 8 × 8 + ((8888 − 8)/8 − 8) := ((999/9 − 9)(9+9)/9 )/9 := 999 + 9 × (9 + 9) := 99/9 × ((99 − ((9 + 9)/9)) + 9) Ï 1157 := 1 + ((1 + 11 × (1 + 1 + 1))1+1 ) Ï 1162 := 111+1+1 − (1 + 1 + 11)1+1 Ï 1167 := 11 + ((1 + 11 × (1 + 1 + 1))1+1 ) := 2/2 + (2 × (((22 + 2)2 ) + 2)) := 2 + (2 × ((((22 + 2)2 ) + 2) + 2)) := 22/2 + (2 × (((22 + 2)2 ) + 2)) := 3/3 + ((3/3 + 33)3−3/3 ) := 3 + (((3/3 + 33)3−3/3 ) + 3) := 33 + (33 × (3 × 3 + 33)) := 4 + ((4 × (4 × (4 + 4) + 44 )) + 4/4) := (4 + 4)/4 × ((4/4 + 4)4 − 44) := 444/4 + 4 × (44 + 4 + 4) := 5 + (((5 + 5)/5)5 × (55/5 + 5 × 5)) := 55 + ((5555 + 5)/5 − 5) := 55 + (5555 + 5)/5 := 6 + ((66 × (6 + 6 + 6)) − (6 × 6 + 6/6)) (6+6)/6 := 6 + ((6 × 6 − ((6 + 6)/6)) ) := ((6 × (6 × 66 − 6)) − 6)/((6 + 6)/6) := 77 + (77 × (7 + 7) + ((7 + 7)/7)) := 7 + (77 × (7 + 7) + 77) := 7 + (7777/7 + 7 × 7) := (8/8 + 88) × (88 + 8 + 8)/8 := 8 + ((8 + 8) × (8 × 8 + 8) + ((8 + 8)/8)) := 8 × 8 + (8888/8 − 8) := (((9 + 9)/9)99/9 ) − 9 × 99 := 9/9 + (999 + 9 × (9 + 9)) := ((99 − 9/9) × ((99 + 9)/9)) − 9 87 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1168 := (1 + 11)1+1 + (1 + 1)11−1 2 Ï 1173 := 1 + (1111 + ((1 + 111+1 )/(1 + 1))) Ï 1178 := 1 + (11 × (111 − (1 + 1 + 1 + 1))) := 2 × (((22 + 2) ) + 2 × (2 + 2)) := 22 + ((2 × ((22 + 2) )) − 2/2) := 22 + (2 × (((22 + 2)2 ) + 2)) := 3 + (3/3 + 33)3−3/3 + 3 × 3 := 3 + (33 × 33 + 3 × 33 ) := ((3 − 33)/3) + (33 × (33 + 3)) := 4 × ((4 × (4 + 4) + 44 ) + 4) := (4 × 4 + 4/4) × ((44 + 4)/4 + 4) := 4 + (((4444 − 4) + 44 )/4) := 55 + (5555 + 5 + 5)/5 := 555 + ((55 − 5 − 5)/5 − 5) := 555 + (55 − 5 − 5)/5 := 6 + (((6 × 6 − ((6 + 6)/6))(6+6)/6 ) + 6) := ((6 × (6 × 66 − 6)) + 6)/((6 + 6)/6) := 66 + (6666 + 6)/6 := (7 + 7) × (77 + 7) − (7/7 + 7) := (7 + 7) × (77 + 7) − (7 + 7 + 7)/7 := ((7 + 7)/7) + (7 + 7) × (77 + 7) := 8 + ((8 + 8) × (8 × 8 + 8) + 8) := 8 × 8 + ((8888 − (8 + 8))/8) := (88/8 + 8) × (8 × 8 − ((8 + 8)/8)) := 9 × 9 + (((99 × 99) − (9 + 9))/9) := 9 + ((9 × (99 + 9 + 9)) + 999/9) := (((99 × (99 + 9)) − 9)/9) − 9 Ï 1169 := 1 + ((1 + 11)1+1 + (1 + 1)11−1 ) 2 Ï 1174 := (1 + 1) × (11 + (((1 + 1) × (1 + 11))1+1 )) Ï 1179 := (11 − 1 − 1) × ((11 × (1 + 11)) − 1) := ((((2 × 22) + 2)2 ) + 222)/2 := 22 + (2 × ((22 + 2)2 )) := 2 + (22/2 × (222/2 − (2 + 2))) := ((33/3)3 ) − (3 + 3) × 33 := (33 × (33 + 3)) − (33/3 + 3) := 3 × ((33 × (3 × 3 + 3)) − 3) := 4/4 + (4 × ((4 × (4 + 4) + 44 ) + 4)) := ((4444 − 4) + 44 )/4 := 4 + ((4444 + 44 )/4) := 555 + ((55 − 55)/5) := 555 + ((55 − 5)/5 − 5) := 555 + (55 − 5)/5 := ((6 + 6 + 6) × (66 − 6/6)) − 6/6 := 66 + ((6666 − (6 + 6 + 6))/6) := 66 + (((6666 + 6) + 6)/6) := (7 + 7) × (77 + 7) − 7 := (7 + 7) × (77 + 7) − (7 + 7)/7 := ((7 + 7 + 7)/7) + (7 + 7) × (77 + 7) := 8 + (((8 + 8) × (8 × 8 + 8) + 8/8) + 8) := 8 × 8 + (8888 − 8)/8 := 8 + (((8 + 8) × (8 × 8 + 8) + (88/8)) + 8) := 9 × 9 + (((99 × 99) − 9)/9) := 9 × 9 + (9999/9 − (9 + 9)) := 99 + (999 + 9 × 9) Ï 1170 := (11 − 1) × (111 + ((1 + 1) × (1 + 1 + 1))) Ï 1175 := 1111 + ((1 + 1)(1+1)×(1+1+1) ) Ï 1180 := (11 − 1) × (111+1 − (1 + 1 + 1)) := 22 + (2 × (((22 + 2)2 ) − 2)) := 22 + ((2 × ((22 + 2)2 )) + 2/2) := 2 + ((2 × (((22 + 2)2 ) + 2)) + 22) := (3 + 3) × (33 × (3 + 3) − 3) := ((3/3 + 3)3 ) + 3333/3 := 3 + ((33 × (33 + 3)) − 33/3) := 4 + ((44 × (4 − 44))/(4 + 4)) := (4444 + 44 )/4 := (4 × ((44 − 4) + 44)) − 4 := (5 + 5) × ((555 + 5)/5 + 5) := 55 /5 + (5 + 5) × 55 := 55 /5 + 555 := (6 + 6 + 6) × (66 − 6/6) := 66 + ((6666 − (6 + 6))/6) := (66 × (6 + 6 + 6)) − ((6 + 6)/6 + 6) := 7/7 + ((7 + 7) × (77 + 7) − 7) := (7 + 7) × (77 + 7) − 7/7 := 77 + ((7777 − 7)/7 − 7) := (8/8 + 8) × (8 × (8 + 8) + ((8 + 8)/8)) := 8 × 8 + 8888/8 := 88 + (((8888 − 88)/8) − 8) := 9 + (999 + 9 × (9 + 9)) := (((99 + 9) × (99 − 9/9)) − 9)/9 := (((99 × (99 + 9)) + 9)/9) − 9 4 Ï 1171 := 1111 + (111+1 − 1)/(1 + 1) Ï 1176 := (1 + 11) × (111 − 1 − 1 − 11) Ï 1181 := 1 + (11 − 1) × (111+1 − 1 − 1 − 1) := 2 + (((((2 × 22) + 2)2 ) + 222)/2) := 2 + ((2 × ((22 + 2)2 )) + 22) := (((22/2 + 22) + 2)2 ) − (2 × 22) := 33 + (3333/3 + 33) := (3/3 + 3) × (3 × 3 × 33 − 3) := (33 × (33 + 3)) − ((3/3 + 3) + 3) 4 4 := ((4444 + 4 )/4) − 4 := (4 × ((4 − 4) + 44)) − 4 − 4 := 5 + (5555/5 + 55) := 555 + ((55 + 5)/5 − 5) := 66 + ((6666/6) − 6) := (66 × (6 + 6 + 6)) − 6 − 6 := 7 × 7 + ((7777 + 77)/7) := (7 + 7) × (77 + 7) := 8 + ((8 + 8) × (8 × 8 + 8) + (88/8)) := 88 + (8 × (8 × (8 + 8) + 8)) := 9 × 9 + (((99 × 99) + 9)/9) Ï 1172 := 1111 + ((1 + 111+1 )/(1 + 1)) := 4 + (44/4 × (444/4 − 4)) := 555 + (55 + 5)/5 := (66 × (6 + 6 + 6)) − 6/6 − 6 := 77 + (7777/7 − 7) := (99 − 9/9) × ((99 + 9)/9) Ï 1177 := 11 × (111 − (1 + 1 + 1 + 1)) := 8 + (((8888 − (8 + 8))/8) + 8 × 8) := 9 × 9 + ((99/9) × (9/9 + 99)) Ï 1182 := 1 + 1 + (11 − 1) × (111+1 − 1 − 1 − 1) := 22 + ((2 × ((22 + 2)2 )) − 2) := 22/2 × (222/2 − (2 + 2)) := 22 + (2 × ((((22 + 2)2 ) + 2) + 2)) := 3 + (33/3)3 − (3 + 3) × 33 := (33 × (33 + 3)) − 33/3 := (33 × (33 + 3)) − (3 + 3) := 4 + (4 × ((4 × (4 + 4) + 44 ) + 4)) := 44/4 × (444/4 − 4) := (4 × ((44 − 4) + 44)) − (4 + 4)/4 := 5 + ((5555 + 5)/5 + 55) := 55 + ((5555 + 55)/5) := 555 + (55 + 5 + 5)/5 := 66 + ((6666 + 6)/6 − 6) := 66 + (6666/6) := (66 × (6 + 6 + 6)) − 6 := 7 + ((7 + 7) × (77 + 7) − (77/7)) := 7/7 + (7 + 7) × (77 + 7) := 7 + ((7 + 7) × (77 + 7) − 7/7) := 8 + (((8888 − 88)/8) + 8 × 8) := 8/8 + ((8 × (8 × (8 + 8) + 8)) + 88) := 8 + ((8888 − 8)/8 + 8 × 8) := 9 × 9 + ((((99 × 99) + 9) + 9)/9) := 99/9 × ((99 − 9/9) + 9) := 9 × 9 + (((9999 − 9)/9) − 9) 88 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1183 := 1111 + (1 + 11)1+1 /(1 + 1) Ï 1188 := 11 × (111 − 1 − 1 − 1) Ï 1193 := 1 + 1111 + (11 − 1 − 1)1+1 := 222 + (((2/2 + 2)2 + 22)2 ) := 22 × (2 × (22 + 2 + 2) + 2) := 2 + (((2 × 222 ) + 222) + 2/2) := (3333 + (3 + 3)3 )/3 := 33 × (33 + 3) := 3 + (((33 × (33 + 3)) − 3/3) + 3) 4 := (4 × ((44 − 4) + 44)) − 4/4 := 4 + (4 × ((4 − 4) + 44)) := 4 + (4 × (44 + 44 ) − 44/4) := 5 + ((55 − 5 − 5)/5 + 555) := (55 − 5/5) × (55 + 55)/5 := ((5 + 5)/5 × (55 − 5)/5) − 55 := 6 + ((6666/6) + 66) := 66 × (6 + 6 + 6) := 6 + ((66 × (6 + 6 + 6)) − 6/6) := 7 + (7 + 7) × (77 + 7) := 77 + 7777/7 := 7 + (((7777 − 7 − 7)/7) + 77) := 8 + (8888/8 + 8 × 8) := 88 + ((8888 − 88)/8) := 8/8 + ((8 + 8) × (88 − 8) − 88) := 9 × 9 + (9999/9 − 9) := 99 × ((99 + 9)/9) := 9 × 9 + (9999 + 9)/9 Ï 1189 := 1 + 11 × (111 − 1 − 1 − 1) Ï 1194 := 11 × 111 − ((1 + 1 + 1)1+1+1 ) Ï 1184 := 11 × 111 − 111/(1 + 1 + 1) := 2 × (((22 + 2)2 ) + 22+2 ) := 222 + ((2 × 222 ) − 2/2) := 222 + (2 × (222 + 2)) := (33 × (33 + 3)) − (3/3 + 3) := 3/3 + (33 × (33 + 3)) := 3 + ((33 × (33 + 3)) + 3) 4 := 4 × ((4 − 4) + 44) := 4 × (44 + 4 ) − 44/4 := 4 × (44 + 44 ) − ((4 + 4)/4 + 4) := 5 + ((55 − 5)/5 + 555) := 5 + (((55 − 5)/5 + 555) + 5) := ((55 − 5 + 55 )/5) − 55 := 6 + ((6666 + 6)/6 + 66) := 6/6 + (66 × (6 + 6 + 6)) := 6 + (66 × (6 + 6 + 6)) := 7 + ((7 + 7) × (77 + 7) + 7/7) := 77 + (7777 + 7)/7 := 7 + ((7777 − 7)/7 + 77) := 8 + ((8 × (8 × (8 + 8) + 8)) + 88) := ((88/8 + 8) × (8 × 8 − 8/8)) − 8 := 8 + (((8888 + 88)/8) + 8 × 8) := 9 × 9 + ((9999 + 9)/9 − 9) := ((99 × (99 + 9)) + 9)/9 := 9 × 9 + (((9999 + 9) + 9)/9) 4 Ï 1185 := 11 × 111 − (1 + 1 + 1) × (1 + 11) Ï 1190 := (11 − 1) × (111+1 − 1 − 1) 2 Ï 1195 := 11 × 111 − ((1 + 1) × (1 + 1 + 11)) := 222 + (2 × 22 ) := (2 × (((22 + 2)2 ) + 22)) − 2/2 := 3 + ((33 × (33 + 3)) − 3/3) := 3 + (((33 × (33 + 3)) + 3/3) + 3) := 4/4 + (4 × ((4 − 4) + 44)) := (4 − 44)/4 + 4 × (44 + 44 ) := 4 × (44 + 44 ) − (4/4 + 4) := 5 + (55 /5 + 555) := 5 × (((5 − (5 + 5)/5)5 ) − 5) := 5 × 5 × 5 × (5 + 5) − 55 := 6 × 6 × 6 × 6 − 666/6 := (6 + 6)/6 + (66 × (6 + 6 + 6)) := 6 + ((66 × (6 + 6 + 6)) + 6/6) := 7 + ((7 + 7) × (77 + 7) + ((7 + 7)/7)) := 7 + ((7 + 7) × (77 + 7) + 7) := 7 + (7777/7 + 77) := (8 − 8/8 + 8) × (88 − (8/8 + 8)) := 88 + ((8888 − 8)/8 − 8) := 8 + ((((8888 + 88) + 8)/8) + 8 × 8) := 9 + ((99 − 9/9) × ((99 + 9)/9)) := (((99 × (99 + 9)) + 9) + 9)/9 := 9 + (((99 × (99 + 9)) − (9 + 9))/9) := (2 + 2 + 2) 2+2 − 222/2 := (33 × (33 + 3)) − 3 4 Ï 1186 := 11 × (111 − 1 − 1 − 1) − 1 − 1 Ï 1191 := 1 + (11 − 1) × (111+1 − 1 − 1) 2 Ï 1196 := (11 × (111 − 1 − 1)) − 1 − 1 − 1 := 222 + (2 × (222 − 2)) := 2/2 + ((2 × 22 ) + 222) := 2 × (((22 + 2)2 ) + 22) := 3/3 + ((33 × (33 + 3)) − 3) := 3 + (33 × (33 + 3)) := 3 × 3 + ((33 × (33 + 3)) − 3/3) 4 := (4 + 4)/4 + (4 × ((44 − 4) + 44)) := 4 × 4 + ((4444 + 4 )/4) := 4 × (44 + 44 ) − 4 := 5 + ((55 + 5)/5 + 555) := 555 + ((55 + 55 )/5) := ((55 + 55 + 5)/5) − 55 := (66 × (6 + 6 + 6)) − (6 + 6)/6 := (6 × 6 × 66 + 6)/((6 + 6)/6) := 6 + ((66 × (6 + 6 + 6)) + ((6 + 6)/6)) := 77 + ((7777 − 7 − 7)/7) := 7 + (((7 + 7) × (77 + 7) + 7/7) + 7) := 7 + ((7777 + 7)/7 + 77) := 8 × 8 + ((8888 + 88)/8) := 88 + (8888/8 − 8) := 8 + (((8888 − 88)/8) + 88) := ((99 × (99 + 9)) − (9 + 9))/9 := 9 × 9 + ((9999 − 9)/9) := 9 + (((99 × (99 + 9)) − 9)/9) Ï 1187 := 11 × (111 − 1 − 1 − 1) − 1 := 2 + ((2 + 2 + 2) 2+2 − 222/2) := (33 × (33 + 3)) − 3/3 Ï 1192 := 1111 + (11 − 1 − 1)1+1 2 Ï 1197 := (11 × (111 − 1 − 1)) − 1 − 1 := 2 + ((2 × 22 ) + 222) := 2/2 + (2 × (((22 + 2)2 ) + 22)) := 3 + ((33 × (33 + 3)) + 3/3) := 3 × ((33 × (3 × 3 + 3)) + 3) 4 := 4 + ((4 × ((4 − 4) + 44)) − 4/4) := 4 × (44 + 4 ) − 4 − 4 := 4/4 + (4 × (44 + 44 ) − 4) := 5 + ((55 + 5 + 5)/5 + 555) := 555 + ((55 + 55 + 5)/5) := ((5 + 5)/5 × (55 + 5)/5) − 55 := (66 × (6 + 6 + 6)) − 6/6 := 6 + ((66 × (6 + 6 + 6)) − ((6 + 6)/6)) := 6 + ((6 × 6 × 66 + 6)/((6 + 6)/6)) 4 := 77 + (7777 − 7)/7 := 7 + (((7 + 7) × (77 + 7) + (7 + 7)/7) + 7) := 7 + (((7 + 7) × (77 + 7) + 7) + 7) := 8 × 8 + (((8888 + 88) + 8)/8) := (8 + 8) × (88 − 8) − 88 := (88/8 + 8) × (8 × 8 − 8/8) := ((99 × (99 + 9)) − 9)/9 := 9 × 9 + 9999/9 := 9 + (99 × ((99 + 9)/9)) 89 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1198 := (11 × (111 − 1 − 1)) − 1 Ï 1203 := 1 + (1 + (1 + (1 + (11 × (111 − 1 − 1))))) Ï 1208 := (11 × (111 − 1)) − 1 − 1 := 2 + (2 × (((22 + 2) ) + 22)) := (2/2 + 2) × ((22 − 2) + 2/2) := 2 + ((2/2 + 2) × ((22 − 2)2 + 2)) := 3 × 3 + ((33 × (33 + 3)) + 3/3) := ((3 + 3) × (33 × (3 + 3) + 3)) − 3 := 3 + (((33/3)3 ) − (3 × 33 + 33 )) 2 4 2 4 := 4 × (44 + 4 ) − (4 + 4)/4 := 4 + (4 × (44 + 4 ) − 4/4) := 4 + (4 × (44 + 44 ) + 4) := (5 + 5)/5 × ((55 − 5)/5 − 5 × 5) := 5 + ((5 + 5)/5 × ((55 − 5)/5 − 5 × 5)) := (5 + 5)/5 × ((55 × 55 − 5)/5) := ((66 − 6)/6) + (66 × (6 + 6 + 6)) := ((6 × (6 × 66 + 6)) − 6)/((6 + 6)/6) := (6 + 6)/6 + ((6 + 6 + 6) × (66 + 6/6)) := 7 + ((((7 + 7) × (77 + 7) + 7/7) + 7) + 7) := (77/7 × (777 − 7)/7) − 7 := 7 × (7 + 7) + (7777 − 7)/7 := 88 + (8888 − 8)/8 := 88/8 + ((8 + 8) × (88 − 8) − 88) := 8 × (8 × 8 + 88) − 8 := 9 + (((99 × (99 + 9)) + 9)/9) := 9 × 9 + ((9999 + 99)/9) := 9 + ((99/9) × (9/9 + 99 + 9)) Ï 1204 := (11 × (111 − 1)) − ((1 + 1) × (1 + 1 + 1)) Ï 1199 := 11 × (111 − 1 − 1) := 2 + (((2/2 + 2) × (22 − 2)2 ) + 2) := 22/2 × (222/2 − 2) := 33/3 + (33 × (33 + 3)) 3 Ï 1209 := (11 × (111 − 1)) − 1 := (2 × 222 ) + (222 − 2)/2 := (33 × ((3 + 3) + 3) − 3)/(3 + 3) := 3 + ((3 + 3) × (33 × (3 + 3) + 3)) := 4 × (44 + 4 ) − 4/4 := 4 + 4 × (44 + 44 ) := 4 + ((4 × (44 + 44 ) + 4/4) + 4) := (5 + 5) × (5 × 5 × 5 − 5) − 5/5 := 5 + ((5 + 5) × (5 × 5 × 5 − 5) − 5/5) := (55 × (55 + 55) − 5)/5 := 66/6 + (66 × (6 + 6 + 6)) := ((66/6) × ((666 − 6)/6)) − 6 := ((6 × (6 × 66 + 6)) + 6)/((6 + 6)/6) := 77 + ((7777 + 77)/7) := 7 × ((7 × 7 × 7 × 7 + 7)/(7 + 7)) := 7 × (7 + 7) + 7777/7 := 88 + 8888/8 := 8 × (8 × 8 + 88) − (88 + 8)/8 := 8/8 + (8 × (8 × 8 + 88) − 8) := 99/9 × (9/9 + 99 + 9) := 9 + ((((99 × (99 + 9)) − (9 + 9))/9) + 9) := 99 + ((9999 − 9)/9) 4 Ï 1200 := 1 + (11 × (111 − 1 − 1)) := (2/2 + 2) × (22 − 2) 2 := 3 + ((33 × (33 + 3)) + 3 × 3) 4 Ï 1205 := 11 × 111 − ((1 + 1)1+1+1+1 ) 2 Ï 1210 := 11 × (111 − 1) := (2/2 + 2 + 2) × (22 − 2)/2 := 2 × ((22/2)2 + 222 ) := ((33/3)3 ) − (3 × 33 + 33 ) := 3 × 33 + 3333/3 4 := 4 × (44 + 4 ) := 4 + (4 × (44 + 4 ) + 4/4) := 44/4 × (444 − 4)/4 := (5 + 5) × (5 × 5 × 5 − 5) := 5 + (5 + 5) × (5 × 5 × 5 − 5) := 55 × (55 + 55)/5 := 6 + ((66 × (6 + 6 + 6)) + 6) := 6 + ((66 × (6 + 6 + 6)) + (66/6)) := 66/6 × ((666 − 6)/6) := (7 × 7 − 7/7) × (77/7 + 7 + 7) := 7/7 + ((77 × (7 + 7) + 77) + 7 × 7) := 77/7 × (777 − 7)/7 := (8 + 8) × (88/8 + 8 × 8) := 8 × (8 × 8 + 88) − 88/8 := 88/8 × (888 − 8)/8 := (9/9 + 9) × (999/9 + 9) := 9 + ((((99 × (99 + 9)) − 9)/9) + 9) := 99 + 9999/9 Ï 1201 := 1 + (1 + (11 × (111 − 1 − 1))) Ï 1206 := (11 × (111 − 1)) − 1 − 1 − 1 − 1 Ï 1211 := 1 + (11 × (111 − 1)) := 2 + (22/2 × (222/2 − 2)) := (2/2 + 2) × ((22 − 2)2 + 2) := (2 × 222 ) + (222 + 2)/2 := (3 × (33 + 3)) + 3333/3 := (3 + 3) × (33 × (3 + 3) + 3) := 3 × 33 + ((3333 + 3)/3) := 4/4 + 4 × (44 + 44 ) := 4 + (4 × (44 + 44 ) + (4 + 4)/4) := 44/4 + 4 × (44 + 44 ) := 5/5 + (5 + 5) × (5 × 5 × 5 − 5) := 5 + ((5 + 5) × (5 × 5 × 5 − 5) + 5/5) := (55 × (55 + 55) + 5)/5 := 6 + (((66 × (6 + 6 + 6)) + 6/6) + 6) := (6 + 6 + 6) × (66 + 6/6) := ((66 × ((666 − 6)/6)) + 6)/6 := (7 × 7 × 7 × 7 + 7/7)/((7 + 7)/7) := 77 × (7 + 7) + ((7 + 7)/7) := (7 × (7 × (7 + 7) + 77)) − (7 + 7) := 8/8 + ((8 + 8) × (88/8 + 8 × 8)) := 8 + ((8888 − 8)/8 + 88) := ((88 × (888 − 8)/8) + 8)/8 := 9 + (9999/9 + 9 × 9) := 9 + ((99 × ((99 + 9)/9)) + 9) := 99 + (9999 + 9)/9 Ï 1202 := 1 + (1 + (1 + (11 × (111 − 1 − 1)))) 7 Ï 1207 := (11 × (111 − 1)) − 1 − 1 − 1 Ï 1212 := 1 + (1 + (11 × (111 − 1))) := 2 + ((2/2 + 2) × (22 − 2)2 ) := 2 + ((2/2 + 2 + 2) × (222 − 2)/2) := 2 + ((2 × 222 ) + 222 /2) := 3 + ((33 × (33 + 3)) + 33/3) := 3/3 + ((3 + 3) × (33 × (3 + 3) + 3)) := 33 + ((33 × (33 + 3)) − 3) := (4 + 4)/4 + 4 × (44 + 44 ) := 4 + ((4 × (44 + 44 ) − 4/4) + 4) := (4 × ((44 + 44 ) + 4)) − 4 := (5 + 5)/5 + (5 + 5) × (5 × 5 × 5 − 5) := 5 + ((5 + 5) × (5 × 5 × 5 − 5) + ((5 + 5)/5)) := (5 + 5)/5 × ((55 × 55 + 5)/5) := 6 + (((66 × (6 + 6 + 6)) + ((6 + 6)/6)) + 6) := 6/6 + ((6 + 6 + 6) × (66 + 6/6)) := 6 + ((6 + 6 + 6) × (66 + 6/6)) := 7 + ((7777/7 + 77) + 7) := 77/7 × 777/7 − (7 + 7) := 7/7 + ((7 × (7 × (7 + 7) + 77)) − (7 + 7)) := (88/8 × (888 − 8)/8) − 8 := 8 + (8888/8 + 88) := 8 × (8 × 8 + 88) − (8/((8 + 8)/8)) := 9 + ((9999 + 9)/9 + 9 × 9) := 9 + ((((99 × (99 + 9)) + 9)/9) + 9) := ((99/9) × 999/9) − 9 90 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1213 := 1 + (1 + (1 + (11 × (111 − 1)))) 2 2+2+2 Ï 1218 := 11 × 111 − 1 − 1 − 1 2 Ï 1223 := 1 + (1 + 11 × 111) := 22 + (2 × (((22 + 2) ) + 22)) := 2 + (22/2 × 222/2) := 3 + (3333/3 + 3 × 33) := 3 + ((33 × (33 + 3)) + 33 ) := ((33/3)3 ) − (3 × (33 + 3)) := 4/4 + ((4 × ((44 + 44 ) + 4)) − 4) := (4 + 4)/4 + (4 × ((44 + 44 ) + 4)) := (((44 × 444/4) + 4) + 4)/4 := (5 × ((5 − (5 + 5)/5)5 )) − (5 + 5)/5 := (5 + 5)/5 × (((55 − 55)/5) − 5) := (5 × (5 × 5 × (5 + 5) − 5)) − (5 + 5)/5 := 6 × 6 + ((6666/6) + 66) := (6 × (6 × 6 × 6 − (6 + 6))) − 6 := (6 × (6 × 6 × 6 − (6 + 6))) − 6/6 := 7 + (77 × (7 + 7) + ((7 + 7)/7) ) := (7 × (7 × (7 + 7) + 77)) − 7 := (7 × (7 × (7 + 7) + 77)) − (7 + 7)/7 := 88/8 × 888/8 − 8 := (8 + 8)/8 + 8 × (8 × 8 + 88) := 8 + (8 × (8 × 8 + 88) − 8/8) := (((99 × 999/9) + 9)/9) − 9 := 9 + (((9999 − 9)/9) + 99) := 22 + ((2/2 + 2) ) 7 Ï 1214 := 1 + (1 + (1 + (1 + (11 × (111 − 1))))) := 9 × 9 × 9 + ((((9 + 9)/9)9 ) − (9 + 9)) Ï 1224 := 1 + (1 + (1 + 11 × 111)) Ï 1219 := 11 × 111 − 1 − 1 := 2 × (((22/2) + 22 ) + 2) := (22/2 × 222/2) − 2 := (2 × 222 ) + 22×(2+2) := 33 + ((33 × (33 + 3)) − 3/3) := 3 + (((3 × 3 + 3/3)3 ) + (3 + 3)3 ) := 333 + (33 × 33 ) := 4 + (44/4 × (444 − 4)/4) := 4 + ((44/4 + 4) × (4 − 4/4)4 ) := 4 + ((4 × ((44 + 44 ) + 4)) + 4) := (5 × ((5 − (5 + 5)/5)5 )) − 5/5 := 5 + ((5 × ((5 − (5 + 5)/5)5 )) − 5/5) := (5 × (5 × 5 × (5 + 5) − 5)) − 5/5 := (((66 × 666/6) − 6)/6) − 6 := ((6 × 6 − 6/6)(6+6)/6 ) − 6 := 6 × (6 × 6 × 6 − (6 + 6)) 2 2 := 77/7 × 777/7 − 7 := 7/7 + ((7 × (7 × (7 + 7) + 77)) − 7) := 8 × (8 × 8 + 88) − (8 + 8)/8 := 88/8 + (8 × (8 × 8 + 88) − 8) := 9 × 99 + ((9 + 9) × (9 + 9) − 9/9) := 9 + (9999/9 + 99) Ï 1215 := 11 × 111 − ((1 + 1) × (1 + 1 + 1)) 2 := (2/2 + 2 + 2) × (22 + 2)/2 := 3 × (33 × ((3 × 3 + 3) + 3)) := (44/4 + 4) × (4 − 4/4)4 5 := 5 × ((5 − (5 + 5)/5) ) := ((7 + 7)/7 + 7) × (((7 + 7)/7)7 + 7) := ((22 × 222/2) − 2)/2 := 4 + (4 × ((44 + 44 ) + 4)) := 4 + (44/4 × 444/4) := ((66 × 666/6) − 6)/6 := (77 × 777/7 − 7)/7 := 9 × (((99 + 9 + 9) + 9) + 9) := ((99 × 999/9) − 9)/9 := 2 × ((2 × 2 2 ) + ((22 + 2) )) := (3 + 3)3 + ((3 × 3 + 3/3)3 ) := 5 × (5 × 5 × (5 + 5) − 5) := (6 × 6 − 6/6)(6+6)/6 := 7 × (7 × (7 + 7) + 77) := 8 + (8 × (8 × 8 + 88) + 8/8) := 9/9 + ((9 − 9/9) × (9 × (9 + 9) − 9)) Ï 1226 := 1 + (1 + (1 + (1 + (1 + 11 × 111)))) Ï 1221 := 11 × 111 := 2 + ((2 × 222 ) + 22×(2+2) ) := 22/2 × 222/2 := 33 + (33 × (33 + 3)) := 4 × ((44 + 44 ) + 4) := ((22/2 + 22) + 2)2 := ((33 − 3/3) + 3)3−3/3 := ((88 × 888/8) − 8)/8 2+2 := (9 − 9/9) × (9 × (9 + 9) − 9) := ((33/3)3 ) − 333/3 := 8 × (8 × 8 + 88) − 8/8 Ï 1216 := 11 × 111 − 1 − 1 − 1 − 1 − 1 := 8 + 8 × (8 × 8 + 88) Ï 1225 := 1 + (1 + (1 + (1 + 11 × 111))) Ï 1220 := 11 × 111 − 1 := 5 + (5 × ((5 − (5 + 5)/5)5 )) := ((66/6) × 666/6) − 6 := (7 × (7 × (7 + 7) + 77)) − 7/7 := 3 + (((33/3)3 ) − (3 × (33 + 3))) := 44/4 × 444/4 := 4 + (((44 × 444/4) + 4)/4) := 5/5 + (5 × ((5 − (5 + 5)/5) )) := 55/5 × 555/5 := 5 + 55/5 × 555/5 := 6 + ((66/6) × ((666 − 6)/6)) := 66/6 × 666/6 := 6 + (((66 × 666/6) − 6)/6) := 7 + (7777/7 + 7 × (7 + 7)) := 77/7 × 777/7 := 7/7 + (7 × (7 × (7 + 7) + 77)) := 8 × (8 × 8 + 88) := 88/8 × 888/8 := 8 + (8 × (8 × 8 + 88) + ((8 + 8)/8)) := 99/9 × 999/9 := (9 + 9)/9 + ((9 − 9/9) × (9 × (9 + 9) − 9)) 5 := 9/9 + ((9 + 9) × (9 + 9) + 9 × 99) Ï 1217 := 11 × 111 − 1 − 1 − 1 − 1 Ï 1227 := 11 × 111 + ((1 + 1) × (1 + 1 + 1)) Ï 1222 := 1 + 11 × 111 := (22/2 × 222/2) − 2 − 2 := ((22 × 222/2) + 2)/2 := 2 + (((22/2 + 22) + 2)2 ) := ((33/3)3 ) − (333/3 + 3) := ((33 × 333/3) + 3)/3 := 3 + ((33 × 33 ) + 333) := 4/4 + (4 × ((44 + 44 ) + 4)) := ((44 × 444/4) + 4)/4 := 44/4 + (4 × ((44 + 44 ) + 4)) := (5 + 5)/5 + (5 × ((5 − (5 + 5)/5)5 )) := ((55 × 555/5) + 5)/5 := 5 + (((55 × 555/5) + 5)/5) := (6 × (6 × 6 × 6 − (6 + 6))) − 6/6 − 6 := ((66 × 666/6) + 6)/6 := 6 + ((66/6) × 666/6) := 7 + (77/7 × (777 − 7)/7) := (77 × 777/7 + 7)/7 := 7 + ((77 × 777/7 − 7)/7) := 8/8 + 8 × (8 × 8 + 88) := ((88 × 888/8) + 8)/8 := 88/8 + 8 × (8 × 8 + 88) := 9 + (((99/9) × (9/9 + 99 + 9)) + 9) := ((99 × 999/9) + 9)/9 := 9 + ((((9999 − 9)/9) + 99) + 9) 91 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1228 := (11 × (1 + 111)) − 1 − 1 − 1 − 1 := 2 × ((2 × (22 × (2 2+2 − 2))) − 2) Ï 1238 := ((1 + 1) × (1 + 1 + 1)) + (11 × (1 + 111)) Ï 1233 := 1 + (11 × (1 + 111)) := ((22 × (222 + 2)/2) + 2)/2 3 := (2 × (((22 + 2)2 ) + 2 × 22)) − 2 := 3 + (((33 − 3/3) + 3)3−3/3 ) := 3 × ((3 × 3 − 3) + 333) := 3 + ((((33/3)3 ) − 3 × 33) + 3) := 44 × (44 − 4 × 4) − 4 := 4/4 + 44 × (44 − 4 × 4) := ((4 + 4)/4 × ((4/4 + 4)4 − 4)) − 4 5 := (5 + 5)/5 × ((55 − 55)/5) := 5 + ((5 + 5)/5 × ((5 − 55)/5)) := (5 + 5)/5 × ((55 − 5)/5 − 5) := 6 + (((66 × 666/6) + 6)/6) := 6 + (((66/6) × 666/6) + 6) := 6 + ((66/6) × (666 + 6)/6) := 7 + 77/7 × 777/7 := 7 + ((7 × (7 × (7 + 7) + 77)) + 7/7) := (7 × (((7 + 7)/7)7 + 7 × 7)) − 7/7 := 8 + (((88 × 888/8) − 8)/8) := 8 + ((8 × (8 × 8 + 88) + 8/8) + 8) := 8 × (8 + 8) + (8888 − 8)/8 := 9 + ((9999/9 + 99) + 9) := 9 + ((9 − 9/9) × (9 × (9 + 9) − 9)) := 9 + ((((99 × 999/9) − 9)/9) + 9) Ï 1229 := (11 × (1 + 111)) − 1 − 1 − 1 2 Ï 1234 := 1 + (1 + (11 × (1 + 111))) 2+2 − 2)))) Ï 1239 := 11 × 111 + (1 + 1) × (11 − 1 − 1) := (2222 + 22×(2+2) )/2 := 2 + ((((22/2 + 22) + 2) ) + 2) := 2 + (2 × (2 × (22 × (2 := ((33/3)3 ) − (3 × 33 + 3) := (33 × 33 ) + (((3/3 + 3) + 3)3 ) := (3 × (3 × 33 + 333)) − 3 := 4 + ((44/4 × 444/4) + 4) := (4 + 4)/4 + 44 × (44 − 4 × 4) := 4 × 4 × (4 + 4) + 4444/4 := ((55 × 55 − 5) + 5 )/5 := (((5 − 55) + 5 )/5) − 5 := ((55 − 55) + 55 )/5 := 6 × 6 × 6 × 6 − (66 + 6/6) := 6 + ((((66 × 666/6) + 6)/6) + 6) := (6/6 + 6) × (666/6 + 66) := 7 + ((77 × 777/7 + 7)/7) := 7 + (((77 × 777/7 − 7)/7) + 7) := 7 × (((7 + 7)/7)7 + 7 × 7) := 8 + 88/8 × 888/8 := 8 + ((8 × (8 × 8 + 88) + ((8 + 8)/8)) + 8) := 8 × (8 + 8) + 8888/8 := 9 + (((99 × 999/9) − 9)/9) := 9 + (((9 − 9/9) × (9 × (9 + 9) − 9)) + 9/9) := 9 + (((99/9) × 999/9) + 9) 5 5 Ï 1230 := (11 × (1 + 111)) − 1 − 1 5 Ï 1235 := 1 + (1 + (1 + (11 × (1 + 111)))) Ï 1240 := (11 − 1) × (1 + (1 + (1 + 111+1 ))) := (2 × (2 + 2) + 2) × ((22/2)2 + 2) := 2 + (((22 × (222 + 2)/2) + 2)/2) := 2 × (((22 + 2)2 ) + 2 × 22) := (3 + 3) × ((3 + 3)3 − 33/3) := 3 + (((33/3)3 ) − 3 × 33) := 3/3 + ((3 × (3 × 33 + 333)) − 3) := (4/4 + 4) × ((4 − 44)/4 + 44 ) := 4 + (44 × (44 − 4 × 4) − 4/4) := (4/4 + 4) × (44 − 4 − 4) := 5 + (5 × (5 × 5 × (5 + 5) − 5)) := 5 + ((5 × (5 × 5 × (5 + 5) − 5)) + 5) := 5 × (((5 − (5 + 5)/5)5 ) + 5) := 6 × 6 × 6 × 6 − 66 := 6 + (6 × 6 × 6 × 6 − (66 + 6/6)) := 6 × 6 × 6 + (((6 + 6)/6)(66−6)/6) := (7 − 7/7) × (((7 + 7)/7)7 + 77) := 7 + (77/7 × 777/7 + 7) := 7/7 + (7 × (((7 + 7)/7)7 + 7 × 7)) := 8 + (((88 × 888/8) + 8)/8) := (88/8 + 8) × (8/8 + 8 × 8) := 88 + (8 + 8) × (8 × 8 + 8) := 9 + ((99/9) × 999/9) := 99/9 + ((9 − 9/9) × (9 × (9 + 9) − 9)) := 9 × 9 × 9 + ((((9 + 9)/9)9 ) − 9/9) Ï 1236 := 1 + (1 + (1 + (1 + (11 × (1 + 111))))) Ï 1231 := (11 × (1 + 111)) − 1 := ((22 × (222 + 2)/2) − 2)/2 3 := 2 × ((2 × (22 × (2 2+2 − 2))) + 2) Ï 1241 := (11 × (1 + 1 + 111)) − 1 − 1 := (22/2 × (222/2 + 2)) − 2 := ((33/3) ) − (3 × 33 + 3/3) := 3 + (3 × ((3 × 33 − 3) + 333)) := 33+3 + ((3 − 3/3)3×3 ) := 44 × (44 − 4 × 4) − 4/4 := 4 + 44 × (44 − 4 × 4) := 4/4 + ((4/4 + 4) × (44 − 4 − 4)) := 5 × 5 × 5 + 5555/5 := ((5/5 + 5)5−5/5 ) − 55 := 6 + (6 × 6 × 6 × 6 − 66) := 66/6 + (6 × 6 × 6 × 6 − 66) := 7 + ((7 × (7 × (7 + 7) + 77)) − 7/7) := 77/7 + (7 × (7 × (7 + 7) + 77)) := ((7 + 7)/7) + (7 × (((7 + 7)/7)7 + 7 × 7)) := 8 + ((8 × (8 × 8 + 88) − 8/8) + 8) := ((88 + 8)/8) × (888/8 − 8) := 8/8 + ((8 + 8) × (8 × 8 + 8) + 88) := 9 + (((99 × 999/9) + 9)/9) := ((9 + 9)/9) × (9 × 9 × 9 − 999/9) := 9 × 9 × 9 + (((9 + 9)/9)9 ) 5 := ((55 × 55 + 5 ) + 5)/5 (6+6)/6 := 6 + ((6 × 6 − 6/6) ) Ï 1237 := 1 + (1 + (1 + (1 + (1 + (11 × (1 + 111)))))) Ï 1232 := 11 × (1 + 111) := 2 × (2 × (22 × (2 2+2 − 2))) := 2 2+2 Ï 1242 := (11 × (1 + 1 + 111)) − 1 := 2 + (2 × (((22 + 2)2 ) + 2 × 22)) + (22/2 × 222/2) := ((33/3)3 ) − 3 × 33 := 3 + ((((3/3 + 3) + 3)3 ) + (33 × 33 )) := 3 × (3 × 33 + 333) := 44 × (44 − 4 × 4) := 4 + (44 × (44 − 4 × 4) + 4/4) := (4 + 4)/4 × ((4/4 + 4)4 − 4) := 55/5 × (555 + 5)/5 := 5 + (55/5 × (555 + 5)/5) := (5 + 5)/5 × ((55 + 5)/5 − 5) := 66/6 × (666 + 6)/6 (6+6)/6 := 6 + (((6 × 6 − 6/6) ) + 6) := 6 + ((6 × 6 × 6 × 6 − 66) + 6) := 7 + (7 × (7 × (7 + 7) + 77)) := 77 + (7777/7 + 7 × 7) := (77/7 + 7) × (77 − (7/7 + 7)) := 8 + (8 × (8 × 8 + 88) + 8) := 8 + (88/8 × 888/8 + 8) := 88 + ((8 + 8) × (8 × 8 + 8) + ((8 + 8)/8)) := 9 × 9 × 9 + ((((9 + 9)/9)9 ) − 9) := 9 + (((9999/9 + 99) + 9) + 9) := 999 + 9 × (9 + 9 + 9) 92 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1248 := (1 + 1) × ((1 + (1 + 1) × (1 + 11))1+1 − 1) Ï 1243 := 11 × (1 + 1 + 111) := 22/2 × (222/2 + 2) 3 := 3/3 + (3 × (3 × 3 + 333)) := 2 + (((((2 × (22 + 2)) + 2)2 ) + 2)/2) := (33 + 3 + 3) × (33 − 3/3) := 3 + (((33/3)3 ) − 3 × 33 ) 4 4 4 := 4 + (4 × (4 − 4 − 4)) := 44 + (4 × (44 + 4 ) − 4/4) Ï 1253 := (11 × (1 + (1 + 1 + 111))) − 1 := 2 × ((22 + 2) × (22 + 2 + 2)) := 4 + ((((4 + 4) × (4/4 + 4)4 ) − 4)/4) 5 := ((5 + 5)/5 × (55 − 5)/5) − 5 := (5 + 5)/5 × (5 − 5)/5 := 66 + ((6666/6) + 66) := (6 × (6 × 6 × 6 − 6)) − 6 − 6 := (6 × (6 × 6 × 6 − 6)) − 6/6 − 6 := 77/7 × (777 + 7 + 7)/7 := (77 + 7)/7 × (777/7 − 7) := 77 + (7 + 7) × (77 + 7) := 8 + ((88/8 + 8) × (8/8 + 8 × 8)) := 8 + ((8 + 8) × (8 × 8 + 8) + 88) := (8 + 8) × (88 − 8) − (88/8 + 8 + 8) := 9/9 + (9 × (9 + 9 + 9) + 999) := 9 + ((((99/9) × 999/9) + 9) + 9) := 99/9 + (9 × (9 + 9 + 9) + 999) := 5 + ((5 + 5)/5 × (55 − 5)/5) Ï 1249 := ((1 + 1) × (1 + (1 + 1) × (1 + 11))1+1 ) − 1 Ï 1244 := 1 + (11 × (1 + 1 + 111)) := ((((2 × (22 + 2)) + 2)2 ) − 2)/2 2 := 2 × ((22 − 2) + 222) 3 3 Ï 1254 := 11 × (1 + (1 + 1 + 111)) := 2 × (((2/2 + 2 + 2)2+2 ) + 2) := 3 + (((3 − 3/3)3×3 ) + 33+3 ) := ((33/3) ) − (3 × 3 + 3/3) := 33 × (33/3 + 33 ) := 44 + 4 × (44 + 44 ) := (((4 + 4) × (4/4 + 4)4 ) − 4)/4 := 4 + (4 + 4)/4 × (4/4 + 4)4 := ((55 − 5 + 55 )/5) − 5 := (55 − 5 + 55 )/5 := 5 + ((55 − 5 + 55 )/5) := 6 + (((66/6) × (666 + 6)/6) + 6) := (6 × (6 × 6 × 6 − 6)) − 66/6 := (6 × (6 × 6 × 6 − 6)) − 6 := (7 × (7 + 7) × (7 + 7)) − ((7 + 7)/7) := 7 + ((77/7 + 7) × (77 − (7/7 + 7))) := 7/7 + ((7 + 7) × (77 + 7) + 77) := 8 + (((88 + 8)/8) × (888/8 − 8)) := (((88 + 8) × (88 + 8 + 8)) + 8)/8 := (88/8 + 8) × (((8 + 8)/8) + 8 × 8) := (9 + 9)/9 + (9 × (9 + 9 + 9) + 999) := 9 + (((((9 + 9)/9)9 ) − 9/9) + 9 × 9 × 9) := 9 × 99 + ((99 × 99)/(9 + 9 + 9)) 7 Ï 1245 := 1 + (1 + (11 × (1 + 1 + 111))) := 2 + (22/2 × (222/2 + 2)) Ï 1250 := (1 + 1) × (1 + (1 + 1) × (1 + 11))1+1 := 2 × ((2/2 + 2 + 2)2+2 ) 3 3 := ((33/3) ) − 3 × 3 := 3 + (3 × (3 × 3 + 333)) Ï 1255 := 1 + (11 × (1 + (1 + 1 + 111))) := 2 + ((((((2 × (22 + 2)) + 2)2 ) + 2)/2) + 2) 3 := 3/3 + (33 × (33/3 + 33 )) 4 := 44 + (4 × (44 + 44 ) + 4/4) := (4 + 4)/4 × (4/4 + 4) := 5 × 5 × 5 × (5 + 5) − 5 := 5 × 5 × 5 × (5 + 5) := 6 + ((6/6 + 6) × (666/6 + 66)) := ((6 − 66)/6) + (6 × (6 × 6 × 6 − 6)) := 6/6 + ((6 × (6 × 6 × 6 − 6)) − 6) := (7/7 + 7 + 7) × (77 − 7/7 + 7) := (7/7 + 7 × 7) × (77/7 + 7 + 7) := 7 + ((77 + 7)/7 × (777/7 − 7)) := 8 + ((88/8 × 888/8 + 8) + 8) := ((((8 + 8)/8) + 8)8×8/(8+8) )/8 := 8 + ((8888/8 + 8 × (8 + 8)) + 8) := 999/9 + (9 × ((99 + 9 + 9) + 9)) Ï 1246 := 1 + (1 + (1 + (11 × (1 + 1 + 111)))) := 2 × (((2/2 + 2 + 2) 2+2 ) − 2) 3 := 3 + ((3 × (3 × 3 + 333)) + 3/3) 4 := (4 + 4)/4 × (4/4 + 4) − 4 5 5 := (4/4 + 4) × (44 − 4/4 − 4) := 5 + 5 × 5 × 5 × (5 + 5) 9 := 9 + ((((9 + 9)/9) ) + 9 × 9 × 9) Ï 1251 := 1 + ((1 + 1) × (1 + (1 + 1) × (1 + 11))1+1 ) 2 := ((((2 × (22 + 2)) + 2) ) + 2)/2 3 Ï 1256 := 1 + (1 + (11 × (1 + (1 + 1 + 111)))) := 2 + (2 × (((2/2 + 2 + 2)2+2 ) + 2)) := 3 + ((((33/3)3 ) − 3 × 33 ) + 3) := 3 × ((3 × 3 + 333) + 3) 4 := (((4 + 4) × (4/4 + 4) ) + 4)/4 5 := 999 + (((9 + 9)/9)9−9/9 ) 5 := (4/4 + 4) × (44 − 4) − 4 := ((5 + 5 + 5)/5) − 5 := (5 + 5 + 5)/5 := 6 × 6 + ((66/6) × ((666 − 6)/6)) := 6 × 6 + (((66/6) × 666/6) − 6) := (6 + 6)/6 + ((6 × (6 × 6 × 6 − 6)) − 6) := 7 + (7 × (((7 + 7)/7) + 7 × 7)) := 7 + ((7 × (7 + 7) × (7 + 7)) − ((7 + 7)/7)7 ) := 777 + (7 × (77 − 7) − (77/7)) := (8/8 + 88) × ((8 − (8 + 8)/8) + 8) := (8/8 + 8) × (8 × (8 + 8) + (88/8)) := 88 × (8 + 8) − (8 × 8 + 88) := 9 + (9 × (9 + 9 + 9) + 999) := 9 × 99 + (((9 × 9 × 9 × 9) + 9)/(9 + 9)) 7 9−9/9 := 999 + ((((9 + 9)/9) ) − 9) Ï 1247 := 1 + (1 + (1 + (1 + (11 × (1 + 1 + 111))))) 2 := 5 + ((55 + 55 + 5)/5) Ï 1252 := (11 × (1 + (1 + 1 + 111))) − 1 − 1 2+2 Ï 1257 := 1 + (1 + (1 + (11 × (1 + (1 + 1 + 111))))) := 222 + ((222/2 + 22)/2) := 22 + (((22/2 + 22) + 2) ) := 2 + (2 × ((2/2 + 2 + 2) := ((33/3)3 ) − (3 × 33 + 3) := ((3/3 + 3)3 ) + (33 × (33 + 3)) := 3 + (33 × (33/3 + 33 )) := 44 + ((4 × (44 − 4 − 4)) − 4/4) := ((4 + 4)/4 + 4)4 − 44 := 4/4 + ((4/4 + 4) × (44 − 4) − 4) := ((5 + 5)/5 × (55 + 5)/5) − 5 := (5 + 5)/5 × (55 + 5)/5 := 5 + ((5 + 5)/5 × (55 + 5)/5) := (6 × (6 × 6 × 6 − 6)) − (6/6 + 6 + 6) := ((6 + 6)/6)6 + (66 × (6 + 6 + 6)) := 6 × 6 + ((66/6) × 666/6) := 77 + ((7 + 7) × (77 + 7) − 7/7) := 7 + ((7/7 + 7 × 7) × (77/7 + 7 + 7)) := 8 + (8888/8 + 8 × (8 + 8)) := 8 × (88 + 8) + 88 × 88/(8 + 8) := 8 + ((((88 + 8) × (88 + 8 + 8)) + 8)/8) := 9 + (((((99 × 999/9) − 9)/9) + 9) + 9) := 9 × (9 + 9) + (((99 × 99) + 9)/9) := 9 × 9 + ((99 − 9/9) × ((99 + 9)/9)) 77/7−7 := (7 − 7/7) −7×7 93 )) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1258 := 11 × 111 + (111/(1 + 1 + 1)) 2+2 Ï 1263 := (11 × (1 + (1 + (1 + 1 + 111)))) − 1 − 1 2 Ï 1268 := 1 + (1 + (1 + (11 × (1 + (1 + (1 + 1 + 111)))))) := 222/2 + (2 × ((22 + 2) )) := 2 + ((222/2 + 222 )/2) := ((3 + 3)3/3+3 ) − 33 := 3 + (((33/3)3 ) − (33 + 33)) := (4 + 4)/4 × ((4/4 + 4) + 4) := 44 + (4 × (44 − 4) − 4/4) := 4 + (4 × (44 − 4) + 44 ) := (5 + 5)/5 × ((55 − 5)/5 + 5) := 5 + ((5 + 5)/5 × ((55 − 5)/5 + 5)) := (5 + 5)/5 × (((55 − 5)/5 + 5) + 5) := 2 × ((((2/2 + 2 + 2) ) + 2) + 2) := (3/3 + 33) × (3/3 + 33 + 3) 4 := (6 × (6 × 6 × 6 − 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × (6 × 6 × 6 − 6)) := 6 + ((6 × (6 × 6 × 6 − 6)) + ((6 + 6)/6)) := 7 × (7 + 7 + 7) + 7777/7 := (7 + 7) × (77 + 7 + 7) − 77/7 := 7/7 + (7 × (77 − 7) + 777) := 8 + (((((8 + 8)/8) + 8)8×8/(8+8) )/8) := 8 × 8 + (8888/8 + 88) := (8 + 8) × (88 − 8) − (88 + 8)/8 := 9 × 9 + ((99/9) × ((99 − 9/9) + 9)) := 9 × (9 + 9) + (((9999 − 9)/9) − 9) := 9 × 9 + (((99 × (99 + 9)) − 9)/9) Ï 1259 := 1 + (11 × 111 + (111/(1 + 1 + 1))) Ï 1264 := (11 × (1 + (1 + (1 + 1 + 111)))) − 1 Ï 1269 := 1111 + ((1 + 1 + 11)1+1 − 11) := 222/2 + (2 × (((22 + 2)2 ) − 2)) := 2 × (((22 + 2 + 2)2 ) − (2 × 22)) := 2 + (((222/2 + 222 ) + 2)/2) := (3 × (3 − 33 )) + ((33/3)3 ) := 3/3 + (((3 + 3)3/3+3 ) − 33) := ((3 + 3)3/3+3 ) − 33 := (4/4 + 4) × (44 − 4) − 4/4 := 44 + 4 × (44 − 4) := 44 + (4 × 44 − 44/4) := 5 + (((55 − 5 + 55 )/5) + 5) := 5 × 5 × 55 − 555/5 := 5 + (5 × 5 × 55 − 555/5) := (6 × (6 × 6 × 6 − 6)) − 6/6 := 6 + ((6 × (6 × 6 × 6 − 6)) − ((6 + 6)/6)) := 6 + ((6 × (6 × 6 × 6 − 6)) + (6 × 6/(6 + 6))) := ((77 − 7) × (77/7 + 7)) − 7/7 := 77 + ((7777 − 7)/7 + 77) := 7 × 7 + ((77 × 777/7 − 7)/7) := 8 + ((8/8 + 8) × (8 × (8 + 8) + (88/8))) := (8 + 8) × (88 − (8/8 + 8)) := (8 + 8) × (88 − 8) − 88/8 9 := 9 × (9 + 9) + (9999/9 − 9) := 9 + ((9 + 9) × (9 × 9 − (99/9))) := 9 + (((((9 + 9)/9) ) + 9 × 9 × 9) + 9) Ï 1260 := (1 + 11) × (111 − ((1 + 1) × (1 + 1 + 1))) Ï 1265 := 11 × (1 + (1 + (1 + 1 + 111))) Ï 1270 := (11 − 1) × (111 + ((1 + 1)1+1+1+1 )) := (2 − 22) × (2/2 − 22+2+2 ) := 22/2 × ((222/2 + 2) + 2) := (2/2 + 2 + 2) × (22×(2+2) − 2) := (3 + 3) × ((3 + 3)3 − (3 + 3)) := ((33/3)3 ) − (33 + 33) := 3 + (((33/3)3 ) − ((3/3 + 3)3 )) := (4/4 + 4) × (44 − 4) := 4/4 + (4 × (44 − 4) + 44 ) := (4/4 + 4) × (44 − (4 + 4)/4) := 5 + (5 × 5 × 5 × (5 + 5) + 5) := 55 × (5 × 5 − ((5 + 5)/5)) := (5 × (5 × 5 × (5 + 5) + 5)) − 5 := 6 × (6 × 6 × 6 − 6) := 6 + ((6 × (6 × 6 × 6 − 6)) − 6/6) := ((66 − 6)/6) + (6 × (6 × 6 × 6 − 6)) := (77 − 7) × (77/7 + 7) := 77 + (7777/7 + 77) := 7 × 7 + 77/7 × 777/7 := (8 × 8 − 8/8) × ((88 + 8)/8 + 8) := 8/8 + ((8 + 8) × (88 − (8/8 + 8))) := (8 − 88)/8 + (8 + 8) × (88 − 8) := (9 + 9) × (9 × 9 − 99/9) := 9 × (9 + 9) + ((9999 + 9)/9 − 9) := (9 + 9) × 99 − (((9 + 9)/9)9 ) Ï 1261 := 1 + ((1 + 11) × (111 − ((1 + 1) × (1 + 1 + 1)))) Ï 1266 := 1 + (11 × (1 + (1 + (1 + 1 + 111)))) Ï 1271 := 11 × 111 + ((11 − 1)1+1 /(1 + 1)) := ((((2 × (22 + 2)) + 2)2 ) + 22)/2 := (222/2 + 222 )/2 := 22 + (((((2 × (22 + 2)) + 2)2 ) − 2)/2) := 3/3 + ((3 + 3) × ((3 + 3)3 − (3 + 3))) := 3 + (((3 + 3)3/3+3 ) − 33) := ((33/3)3 ) − (33 + 33) := 4/4 + (4/4 + 4) × (44 − 4) := 4 × 4 + (4 + 4)/4 × (4/4 + 4)4 := (4/4 + 4) × (44 − 4/4) − 4 := ((55 + 55 ) + 55 )/5 := 5 + (((55 + 55 ) + 55 )/5) := ((5/5 + 5)5−5/5 ) − 5 × 5 := 6/6 + (6 × (6 × 6 × 6 − 6)) := 6 + (6 × (6 × 6 × 6 − 6)) := 66/6 + (6 × (6 × 6 × 6 − 6)) := 7/7 + ((77 − 7) × (77/7 + 7)) := 777 + (7 × (77 − 7) − 7/7) := (((7 + 7)/7)77/7 ) − 777 := (8 + 8) × (88 − 8) − (88/8 + 8) := (8 + 8)/8 + ((8 + 8) × (88 − (8/8 + 8))) := (8 + 8) × (88 − 8) − (8/8 + 8) := 9/9 + ((9 + 9) × (9 × 9 − (99/9))) := 9 × (9 × (9 + 9) − 9) − 999/9 := 9/9 + ((9 + 9) × 99 − (((9 + 9)/9)9 )) Ï 1262 := (11 × (1 + 111)) + ((11 − 1) × (1 + 1 + 1)) := 2 + ((2 − 22) × (2/2 − 2 2+2+2 )) Ï 1267 := 1 + (1 + (11 × (1 + (1 + (1 + 1 + 111))))) := ((2 22/2 2 + 22 ) + 2)/2 Ï 1272 := (1 + 11) × (111 − (1 + (1 + 1 + 1 + 1))) := (2 + 2 + 2)2+2 − (22 + 2) := 3 + ((3 × (3 − 33 )) + ((33/3)3 )) := ((33/3)3 ) − ((3/3 + 3)3 ) := 3 + (((3 + 3)3/3+3 ) − 33 ) := 4 + ((4 + 4)/4 × ((4/4 + 4)4 + 4)) := 4 + ((4 × (44 − 4) − 4/4) + 44 ) := 44 + (4 × 44 − (4 + 4)) := (5 + 5)/5 × ((55 + 5)/5 + 5) := 5 + ((5 + 5)/5 × ((55 + 5)/5 + 5)) := (5 + 5)/5 × ((55 + 55 )/5) := (6 + 6)/6 + (6 × (6 × 6 × 6 − 6)) := 6 + ((6 × (6 × 6 × 6 − 6)) + 6/6) := 6 + ((6 × (6 × 6 × 6 − 6)) + 6) := ((7 + 7)/7) + ((77 − 7) × (77/7 + 7)) := 777 + 7 × (77 − 7) := (7 + 7) × (77 + 7 + 7) − (7 + 7)/7 88/8−8 := 8 + ((88/8 + 8) × (((8 + 8)/8) + 8 × 8)) := ((88/8) := (9 + 9)/9 + ((9 + 9) × (9 × 9 − (99/9))) := 9 × 9 + (((99 × (99 + 9)) − (9 + 9))/9) )−8×8 94 := (8 + 8) × (88 − 8) − 8 := 9 × (9 + 9) + ((9999 − 9)/9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1273 := 1 + ((1 + 11) × (111 − (1 + (1 + 1 + 1 + 1)))) 2 2 Ï 1278 := (11 − 1 − 1) × ((1 + 11)1+1 − (1 + 1)) 2+2+2 Ï 1283 := ((1 + 11) × (111 − (1 + 1 + 1 + 1))) − 1 := (2 + 2 + 2)2+2 − (22/2 + 2) := (22/2) + (2 × ((22 + 2) )) := ((22 − 2) × 2 := (3 + 3) × 33 + 3333/3 := (3 + 3) × ((3 + 3)3 − 3) := 33 + (((33/3)3 ) − 3 × 33 ) := 4 + ((4 × 44 − 44/4) + 44 ) := 44 + (4 × 44 − (4 + 4)/4) := 4 + ((4 × 44 − 4/4) + 44 ) := 5 × 5 + ((5 + 5)/5 × (55 − 5)/5) := 5 + (((5 + 5)/5 × (55 − 5)/5) + 5 × 5) := 5 × 5 + ((5 + 5)/5 × ((55 − 5)/5 + 5)) )−2 := 6 + (((6 × (6 × 6 × 6 − 6)) + 6/6) + 6) := 6 × 6 × 6 × 6 − 6 − 6 − 6 := 6 × 6 × 6 × 6 − (6/6 + 6 + 6) := (7 + 7) × (77 + 7 + 7) − 7/7 := (77/7 + 7) × ((7/7 − 7) + 77) := 7 + ((7 + 7) × (77 + 7 + 7) + ((7 + 7)/7)) := 8/8 + ((8 + 8) × (88 − 8) − 8) := (8 + 8) × (88 − 8) − (8 + 8)/8 := 88/8 + ((8 + 8) × (88 − 8) − 8) := 9 × (9 + 9) + 9999/9 := (9 + 9) × (9 × 9 − (9/9 + 9)) := 9 + ((9999 + 9)/9 + 9 × (9 + 9)) Ï 1274 := (1 + 1 + 11) × (111 − 1 − 1 − 11) := (2 + 2 + 2) 2+2 := ((22 − 2) × 2 − 22 3 Ï 1279 := 1111 + ((1 + 1 + 11)1+1 − 1) 3 := 3 + (((33/3) ) − (3 + 33)) 2+2+2 Ï 1284 := (1 + 11) × (111 − (1 + 1 + 1 + 1)) := 222 + 2 × (22 − 2)2 ) − 2/2 3 := 3/3 + ((3 + 3) × ((3 + 3) − 3)) 4 := (33 × (33 + 3 + 3)) − 3 4 := 4 + ((4/4 + 4) × (44 − (4 + 4)/4)) := 4 + (4 × 4 − 4/4) := 4 + (4 × 44 + 44 ) := 5 × 5 + ((55 − 5 + 55 )/5) := 5 + (((55 − 5 + 55 )/5) + 5 × 5) := (((55 × (55 + 5)) − 5) + 55 )/5 := 6 × 6 × 6 × 6 − ((66 + 66)/6) := 6 × 6 × 6 × 6 − (66/6 + 6) := 6 × 6 × 6 × 6 − 6 − 6 7 := (7 + 7) × (77 + 7 + 7) := (((77 − 7) × ((7 + 7)/7) ) − 7)/7 := ((77 − 7)/7) + (7 + 7) × (77 + 7 + 7) := (8 + 8)/8 + ((8 + 8) × (88 − 8) − 8) := (8 + 8) × (88 − 8) − 8/8 := (8/((8 + 8)/8)) + (8 + 8) × (88 − 8) := 9 × (9 + 9) + (9999 + 9)/9 Ï 1275 := 111+1+1 − (1 + 111)/(1 + 1) 9 := 9 + ((9 + 9) × 99 − (((9 + 9)/9) )) := ((99 + 9)/9) × ((99 − 9/9) + 9) Ï 1285 := ((1 + 1 + 1) × (1 + 11))1+1 − 11 Ï 1280 := 1111 + (1 + 1 + 11)1+1 := 2/2 + ((2 + 2 + 2)2+2 − 22) := (22 − 2) × 22+2+2 := (2 + 2 + 2)2+2 − 22/2 := ((3 + 3) × ((3 + 3)3 − 3)) − 3 := 3 + (((33/3)3 ) − (33 + 33 )) := ((3 + 3)3/3+3 ) − 33/3 := (4/4 + 4) × (44 − 4/4) := 44 + 4 × 44 := (4/4 + 4) × (4/4 + 44 ) := 5 × (5 × 5 × (5 + 5) + 5) := 5 + (5 × (5 × 5 × (5 + 5) + 5)) := 5 + ((5 × (5 × 5 × (5 + 5) + 5)) + 5) := 6 × 6 × 6 × 6 + ((6 − (66 + 66))/6) := ((6 − 66)/6) + (6 × 6 × 6 × 6 − 6) := 6 × 6 × 6 × 6 − 66/6 7 := 7/7 + (7 + 7) × (77 + 7 + 7) := ((77 − 7)/7) × ((7 + 7)/7) := 77/7 + (7 + 7) × (77 + 7 + 7) := (8/8 + 8 + 8) × (88/8 + 8 × 8) := (8 + 8) × (88 − 8) := 8 × 8 + 88/8 × 888/8 := 9 + (9 × (9 × (9 + 9) − 9) − 999/9) := (9 − 9/9) × (9 × (9 + 9) − ((9 + 9)/9)) := ((9 + 9) × (9 × 9 − 9)) − 99/9 Ï 1276 := 11 × (1 + 1 + 1 + 1 + 1 + 111) := 2 + ((2 + 2 + 2) 2+2 − 22) := 3/3 + (((3 + 3) × ((3 + 3)3 − 3)) − 3) Ï 1281 := 1 + (1111 + (1 + 1 + 11)1+1 ) Ï 1286 := 1 + (((1 + 1 + 1) × (1 + 11))1+1 − 11) := 2/2 + ((22 − 2) × 22+2+2 ) := 2 + 2 × (22 − 2)2 + 222 := 3 + ((3 + 3) × ((3 + 3)3 − 3)) := (33 × (33 + 3 + 3)) − 3/3 := 4 + (4 × 4 − 4) := 4/4 + (4 × 4 + 4 ) := 4 + (((4 + 4)/4 + 4 × 44 ) + 44 ) := 5 × 5 + ((55 + 55 + 5)/5) := 5 + (((55 + 55 + 5)/5) + 5 × 5) := ((5/5 + 5)5−5/5 ) − 5 − 5 := 66/6 × (((666 − 6)/6) + 6) := ((66/6) × (666/6 + 6)) − 6 := ((6 − 66)/6) + 6 × 6 × 6 × 6 := ((7 + 7)/7) + (7 + 7) × (77 + 7 + 7) := 7 + (7 + 7) × (77 + 7 + 7) := 7 + ((((77 − 7) × ((7 + 7)/7)7 ) − 7)/7) := (8 + 8) × (88 − 8) − (8/((8 + 8)/8)) := 8/8 + (8 + 8) × (88 − 8) := 8 + ((8 + 8) × (88 − 8) − ((8 + 8)/8)) := 99/9 × (((99 − 9/9) + 9) + 9) := 9 + (((9999 − 9)/9) + 9 × (9 + 9)) := ((9 + 9) × (9 × 9 − 9)) − 9/9 − 9 4 4 4 Ï 1277 := 1 + 11 × (1 + 1 + 1 + 1 + 1 + 111) := 2 + (((2 + 2 + 2)2+2 − 22) + 2/2) 3 3 3 4 Ï 1282 := 1 + (1 + (1111 + (1 + 1 + 11)1+1 )) := 2 + ((22 − 2) × 22+2+2 ) 3 := ((33/3) ) − (3 + 3 ) Ï 1287 := 11 × (111 + ((1 + 1) × (1 + 1 + 1))) := 2 + ((2 + 2 + 2)2+2 − 22/2) := 3 + (((3 + 3) × ((3 + 3) − 3)) + 3/3) := 33 × (33 + 3 + 3) := 44 + ((4 + 4)/4 + 4 × 44 ) := 4 × 44 + 4444/4 := 5 + ((5 + 5)/5 × ((55 + 5 )/5)) := (5 + 5)/5 × (((55 + 55 )/5) + 5) := 55/5 × ((555 + 5)/5 + 5) := 6 + ((6 × (6 × 6 × 6 − 6)) + (66/6)) := 6 × 6 × 6 × 6 − ((6 + 6)/6 + 6 + 6) := 66/6 × (666/6 + 6) := 7 + (77/7 × 777/7 + 7 × 7) := 7 + ((7 + 7) × (77 + 7 + 7) + 7/7) := 7 + (((77 − 7)/7) × ((7 + 7)/7)7 ) := 8 + ((8 + 8) × (88 − 8) − (88/8)) := (8 + 8)/8 + (8 + 8) × (88 − 8) := 8 + ((8 + 8) × (88 − 8) − 8/8) := 9 + (9999/9 + 9 × (9 + 9)) := ((9 + 9) × (9 × 9 − 9)) − 9 4 4 := 4/4 + ((4 × 4 − 4) + 4 ) 5 := ((9 + 9) × (9 × 9 − 9)) − (9/9 + 9 + 9) 95 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1288 := 1 + 11 × (111 + (1 + 1) × (1 + 1 + 1)) Ï 1293 := ((1 + 1 + 1) × (1 + 11))1+1 − 1 − 1 − 1 Ï 1298 := 11 × (111+1 − (1 + 1 + 1)) := 2 × (2 × (((22+2 + 2)2 ) − 2)) := (2 + 2 + 2)2+2 − 2/2 − 2 := 2 + (2 + 2 + 2)2+2 := 3/3 + (33 × (33 + 3 + 3)) := ((3 + 3)3/3+3 ) − 3 := ((33/3)3 ) − 33 := 4 + (4 × 4 + 4 + 4) := 4/4 + (((4 + 4)/4 + 4)4 − 4) := (4 + 4)/4 + ((4 + 4)/4 + 4)4 := (55 + 5/5) × (5 × 5 − ((5 + 5)/5)) := 5 + ((55 + 5/5) × (5 × 5 − ((5 + 5)/5))) := 5 × 55 + ((5 − 5/5)5 − 5/5) := 6 × 6 × 6 × 6 − ((6 + 6)/6 + 6) := 6 × 6 × 6 × 6 − 6 × 6/(6 + 6) := (6 + 6)/6 + 6 × 6 × 6 × 6 := 7 + ((7 + 7) × (77 + 7 + 7) + 7) := (7 × (7 + 7) × (7 + 7)) − ((7 + 7)/7 + 77) := 77/7 × (777/7 + 7) := 8 + (8 + 8) × (88 − 8) := 8 + (88/8 × 888/8 + 8 × 8) := 88/8 × ((888 − 8)/8 + 8) := 9/9 + (((9 + 9) × (9 × 9 − 9)) − 9) := ((9 + 9) × (9 × 9 − 9)) − (9 + 9 + 9)/9 := (9 + 9)/9 + ((9 + 9) × (9 × 9 − 9)) 4 4 Ï 1289 := (1 + 1 + 11) × (11 − 1)1+1 − 11 Ï 1294 := ((1 + 1 + 1) × (1 + 11))1+1 − 1 − 1 Ï 1299 := 1 + (11 × (111+1 − (1 + 1 + 1))) := 2 + (((2 + 2 + 2)2+2 − 22/2) + 2) := (2 + 2 + 2)2+2 − 2 := 2 + ((2 + 2 + 2)2+2 + 2/2) := ((33/3)3 ) − (3 × 3 + 33) := 3/3 + (((3 + 3)3/3+3 ) − 3) := 3 + ((3 + 3)3/3+3 ) := 4 + ((4/4 + 4) × (4/4 + 44 )) := ((4 + 4)/4 + 4)4 − (4 + 4)/4 := 4 + (((4 + 4)/4 + 4)4 − 4/4) 5 5 := 5 × 55 + ((5 − 5/5) − (5 + 5)) := 5 × 55 + ((5 − 5/5) − 5) := 5 × 55 + (5 − 5/5)5 := 6 × 6 × 6 × 6 − 6/6 − 6 := 6 × 6 × 6 × 6 − (6 + 6)/6 := 6 × 6 × 6 × 6 + (6 × 6/(6 + 6)) 77/7−7 := (7 × (7 + 7) × (7 + 7)) − (7/7 + 77) := ((77 × (777/7 + 7)) + 7)/7 := 8 + ((8 + 8) × (88 − 8) + 8/8) := 8 + (((8 + 8) × (88 − 8) − ((8 + 8)/8)) + 8) := 8 + ((8 + 8) × (88 − 8) + (88/8)) := (9 + 9)/9 + (((9 + 9) × (9 × 9 − 9)) − 9) := ((9 + 9) × (9 × 9 − 9)) − (9 + 9)/9 := ((9 + 9 + 9)/9) + ((9 + 9) × (9 × 9 − 9)) := (7 − 7/7) −7 Ï 1290 := (11 − 1) × (11 × (1 + 11) − 1 − 1 − 1) Ï 1295 := ((1 + 1 + 1) × (1 + 11))1+1 − 1 2+2 Ï 1300 := (1 + 1 + 11) × (11 − 1)1+1 := 2 + ((2 + 2 + 2)2+2 + 2) := (2 + 2 + 2)2+2 − (2 + 2 + 2) := (2 + 2 + 2) := 3 + (33 × (33 + 3 + 3)) := ((33/3)3 ) − (33 + 3) := 3 + (((3 + 3)3/3+3 ) + 3/3) := (4/4 + 4) × ((4 + 4)/4 + 44 ) := ((4 + 4)/4 + 4)4 − 4/4 := 4 + ((4 + 4)/4 + 4)4 := 5 × ((55 + 5)/(5 + 5) − 55) := (5 × (5 × 55 − 5)) − 55 := (5 + 5) × (5 × 5 × 5 + 5) := 6 × 6 × 6 × 6 − 6 := 6 × 6 × 6 × 6 − 6/6 := 6 + (6 × 6 × 6 × 6 − ((6 + 6)/6)) := 7 × 7 × 7 × 7 − 7777/7 := (7 × (7 + 7) × (7 + 7)) − 77 := ((7 + 7)/7) × (777/7 + 7 × 77) := 8 + ((8 + 8) × (88 − 8) + ((8 + 8)/8)) := 8 + (((8 + 8) × (88 − 8) − 8/8) + 8) := (8/8 + 8 × 8) × ((88 + 8)/8 + 8) := (9/9 + 9) × ((999/9 + 9) + 9) := ((9 + 9) × (9 × 9 − 9)) − 9/9 := (9/9 + 99) × ((99 + 9 + 9)/9) Ï 1291 := 1 + ((11 − 1) × (11 × (1 + 11) − 1 − 1 − 1)) − 2/2 Ï 1296 := ((1 + 1 + 1) × (1 + 11))1+1 Ï 1301 := 1 + (1 + 1 + 11) × (11 − 1)1+1 := (2 + 2 + 2)2+2 − (2/2 + 2 + 2) := (2 + 2 + 2)2+2 := 2 + (((2 + 2 + 2)2+2 + 2/2) + 2) := 3 + ((33 × (33 + 3 + 3)) + 3/3) := (3 + 3)3/3+3 := 3 + (((33/3)3 ) − 33) := 44 + (44/4 + 4 × 44 ) := ((4 + 4)/4 + 4)4 := 4 + (((4 + 4)/4 + 4)4 + 4/4) := ((5/5 + 5) 5−5/5 )−5 := 6/6 + (6 × 6 × 6 × 6 − 6) := (5/5 + 5) 5−5/5 := 5 + ((5/5 + 5)5−5/5 ) := 6 × 6 × 6 × 6 := 6 + (6 × 6 × 6 × 6 − 6/6) 77/7−7 := (7 − 7/7) := 7 + ((7 × (7 + 7) × (7 + 7)) − (7/7 + 77)) := 88/8 + (8 + 8) × (88 − 8) := 8 + ((8 + 8) × (88 − 8) + 8) := (88/8 × (888/8 + 8)) − 8 := 99 + (9999/9 + 9 × 9) := (9 + 9) × (9 × 9 − 9) := 9 × 9 + (((99 × 999/9) − 9)/9) := 77/7 × (777/7 + 7) − 7 Ï 1292 := 111+1+1 − ((1 + 1 + 1) × (1 + 1 + 11)) Ï 1297 := 1 + ((1 + 1 + 1) × (1 + 11))1+1 Ï 1302 := 1 + 1 + (1 + 1 + 11) × (11 − 1)1+1 := (2 + 2 + 2)2+2 − 2 − 2 := 2/2 + (2 + 2 + 2)2+2 := 2 + (((2 + 2 + 2)2+2 + 2) + 2) := ((33/3)3 ) − (33 + 3 + 3) := 3/3 + ((3 + 3)3/3+3 ) := 3 + (((3 + 3)3/3+3 ) + 3) := ((4 + 4)/4 + 4)4 − 4 := 4/4 + ((4 + 4)/4 + 4)4 := 4 + (((4 + 4)/4 + 4)4 + (4 + 4)/4) := 5/5 + (((5/5 + 5)5−5/5 ) − 5) := 5/5 + ((5/5 + 5)5−5/5 ) := 5 + (((5/5 + 5)5−5/5 ) + 5/5) := (6 + 6)/6 + (6 × 6 × 6 × 6 − 6) := 6/6 + 6 × 6 × 6 × 6 := 6 + 6 × 6 × 6 × 6 := (7/7 − 77) × (((7 − 77)/7) − 7) 77/7−7 := 7/7 + (7 − 7/7) := 7 + ((7 × (7 + 7) × (7 + 7)) − 77) := ((88 + 8)/8) + (8 + 8) × (88 − 8) := 88 × (8 + 8) − 888/8 := 88 + (8 × (8 × 8 + 88) − ((8 + 8)/8)) := 99 + ((9999 + 9)/9 + 9 × 9) := 9/9 + ((9 + 9) × (9 × 9 − 9)) := 9 × 9 + ((99/9) × 999/9) 96 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1303 := 1 + 1 + 1 + (1 + 1 + 11) × (11 − 1)1+1 Ï 1308 := (1 + 11) × (111 − 1 − 1) Ï 1313 := (1 + 1 + 11) × (1 + (11 − 1)1+1 ) := 2 + ((((2 + 2 + 2)2+2 + 2/2) + 2) + 2) := 2 × (((22 + 2 + 2)2 ) − 22) := 2 + ((22/2 × ((22/2)2 − 2)) + 2) := ((33/3)3 ) − (33 + 3/3) := 3 + (((3 + 3)3/3+3 ) + 3 × 3) := ((33/3)3 ) − (3 × (3 + 3)) := 4 + ((((4 + 4)/4 + 4)4 − 4/4) + 4) := 4 + ((((4 + 4)/4 + 4)4 + 4) + 4) := 4 × 4 + (((4 + 4)/4 + 4)4 + 4/4) := 55 + ((5 + 5)/5 × (55 − 5)/5) := 5 + (((5 + 5)/5 × (55 − 5)/5) + 55) := 55 + ((5 + 5)/5 × ((55 − 5)/5 + 5)) := 6 + (6 × 6 × 6 × 6 + 6/6) := 6 + (6 × 6 × 6 × 6 + 6) := 6 + (6 × 6 × 6 × 6 + (66/6)) := 7 + (7 − 7/7) := 7 × 77 + (777 − (7/7 + 7)) := 7 × 77 + (777 − ((7 + 7 + 7)/7)) := 88 + (8 × (8 × 8 + 88) − 8/8) := (88 × (888/8 + 8) − 8)/8 := 8 + ((8 − 8/8 + 8) × (88 − 8/8)) := 9 + (((9 + 9) × (9 × 9 − 9)) − ((9 + 9)/9)) := ((99 + 9)/9) + ((9 + 9) × (9 × 9 − 9)) := 9 + ((((9 + 9) × (9 × 9 − 9)) − 9/9) + 9) 77/7−7 Ï 1304 := 111+1+1 − (1 + 1 + 1)1+1+1 Ï 1309 := 11 × (111+1 − 1 − 1) := 2 × (2 × (((22+2 + 2)2 ) + 2)) := 22/2 × ((22/2)2 − 2) := 2 + ((2 + 2 + 2)2+2 + 22+2 ) := ((33/3)3 ) − 33 := 33/3 + (((33/3)3 ) − 33) := (3 + 3) × ((3 + 3)3 + 3) := 4 + (((4 + 4)/4 + 4)4 + 4) := 4 + ((4/4 + 4) × ((4/4 + 44 ) + 4)) := (((4 + 4) × (4/4 + 4)4 ) + 44 )/4 := 5 + ((5 − 5/5)5 + 5 × 55) := 5 + (((5 − 5/5)5 + 5 × 55) + 5) := 5 × 5 × 55 − ((55 + 5/5) + 5) := 6 + (6 × 6 × 6 × 6 + ((6 + 6)/6)) := 6 + ((6 × 6 × 6 × 6 + 6/6) + 6) := 6 + ((6 × 6 × 6 × 6 + 6) + 6) := ((7 + 7)/7)7 + (7 + 7) × (77 + 7) := 77 × ((77 − 7)/7 + 7) := 7 × 77 + (777 − ((7 + 7)/7)) := 88 + 8 × (8 × 8 + 88) := 88/8 × (888/8 + 8) := (8 + 8)/8 + (88 × (8 + 8) − (88 + 8)) := 9 + (((9 + 9) × (9 × 9 − 9)) − 9/9) := 99 + (9999/9 + 99) := 9 + (((9 + 9) × (9 × 9 − 9)) + 9) Ï 1305 := (11 − 1 − 1) × (1 + (1 + 11)1+1 ) Ï 1310 := 1 + 11 × (111+1 − 1 − 1) Ï 1314 := 1 + (1 + 1 + 11) × (1 + (11 − 1)1+1 ) Ï 1315 := 111+1+1 − (1 + 1)1+1+1+1 := 22/2 + ((2 + 2 + 2)2+2 − 2) := ((2 + 2 + 2) × 222) − 22 := (22/2)2/2+2 − 22+2 := 3 × 3 + ((3 + 3)3/3+3 ) := 3 + ((((33/3)3 ) − 33 ) + 3) := 3/3 + ((3 + 3) × ((3 + 3)3 + 3)) := (4/4 + 4) × ((4/4 + 44 ) + 4) := (4/4 + 4) × (((4 + 4)/4 + 44 ) + 4) := ((44/4)4−4/4 ) − 4 × 4 := 5 + ((5 + 5) × (5 × 5 × 5 + 5)) := 5 + (((5 + 5) × (5 × 5 × 5 + 5)) + 5) := 5 × 5 × 55 − (55 + 5) := 6 + (6 × 6 × 6 × 6 + (6 × 6/(6 + 6))) := 6 + ((6 × 6 × 6 × 6 + ((6 + 6)/6)) + 6) := 6 + (((6 × 6 × 6 × 6 + 6/6) + 6) + 6) := 7 + 77/7 × (777/7 + 7) := 7 + ((7 − 7/7)77/7−7 + 7) := 7 × 77 + (777 − 7/7) := (8 − 8/8 + 8) × (88 − 8/8) := (88 × (888/8 + 8) + 8)/8 := ((88/8)88/8−8 ) − 8 − 8 := 9 + ((9 + 9) × (9 × 9 − 9)) := 99 + ((9999 + 9)/9 + 99) := 9 + ((((9 + 9) × (9 × 9 − 9)) + 9/9) + 9) Ï 1306 := (1 + 11) × (111 − 1 − 1) − 1 − 1 := 2 + ((2 + 2 + 2)2+2 + 2 × (2 + 2)) := 3 + (((33/3)3 ) − (33 + 3/3)) Ï 1311 := 1 + 1 + 11 × (111+1 − 1 − 1) 2 := 2 + (22/2 × ((22/2) − 2)) 3 := ((3 + 3) × ((3 + 3) + 3)) − 3 4 Ï 1316 := 111+1+1 − 1 − 1 − 1 − 1 − 11 := 22 + ((2 + 2 + 2)2+2 − 2) := 3 + (((33/3)3 ) − (3 × (3 + 3))) := (44 − 4)/4 + ((4 + 4)/4 + 4)4 := 44 × 44 − (4/4 + 4) := 5 + (((5/5 + 5)5−5/5 ) + 5) := 5 + ((((5/5 + 5)5−5/5 ) + 5) + 5) := 5 × 5 + (((5/5 + 5)5−5/5 ) − 5) := ((66 − 6)/6) + 6 × 6 × 6 × 6 := 6 + ((6 × 6 × 6 × 6 + (6 × 6/(6 + 6))) + 6) := 6 + (((6 × 6 × 6 × 6 + ((6 + 6)/6)) + 6) + 6) := 7 + (((77 × (777/7 + 7)) + 7)/7) := 7 + ((7 + 7) × (77 + 7) + ((7 + 7)/7)7 ) := 7 × 77 + 777 := 8 + (((8 − 888)/8) + 88 × (8 + 8)) := 88 × (8 + 8) − ((8/8 + 88) + 8) := 8 + ((88 × (888/8 + 8) − 8)/8) := 9 + (((9 + 9) × (9 × 9 − 9)) + 9/9) := 99/9 × (999/9 + 9) − 9 := 9 + (((9 + 9) × (9 × 9 − 9)) + (99/9)) Ï 1307 := (1 + 11) × (111 − 1 − 1) − 1 Ï 1312 := 1 + 1 + 1 + 11 × (111+1 − 1 − 1) := 4 + (4 × (44 + 4 + 4) + 44 ) Ï 1317 := 111+1+1 − 1 − 1 − 1 − 11 := 22/2 + (2 + 2 + 2)2+2 := 22+2 + (2 + 2 + 2)2+2 := 22 + ((2 + 2 + 2)2+2 − 2/2) := 3 + (((33/3)3 ) − 33 ) := 3/3 + (((3 + 3) × ((3 + 3)3 + 3)) − 3) := 3 + ((3 + 3) × ((3 + 3)3 + 3)) := 44/4 + ((4 + 4)/4 + 4) 4 4 := 4 × ((4 × (4 − 4/4) ) + 4) := (4 − 4/4) × (444 − (4/4 + 4)) := 55 + ((5 + 5)/5 × (55 + 5)/5) := 5 + (((5 + 5)/5 × (5 + 5)/5) + 55) := 55 + ((5 + 5)/5 × ((55 + 5)/5 + 5)) := 66/6 + 6 × 6 × 6 × 6 := 6 + (((66 − 6)/6) + 6 × 6 × 6 × 6) := 6 × 6 × 6 × 6 + ((6 × 6 + 6)/((6 + 6)/6)) := (7 + 7) × (7 + 7) + 7777/7 := (7 × ((7 + 7) × (7 + 7) − 7)) − 77/7 := 7/7 + (7 × 77 + 777) 5 := 8 + (((8 + 8) × (88 − 8) + (88/8)) + 8) := 88 × (8 + 8) − (88 + 8) := 8 + (88/8 × (888/8 + 8)) := 99/9 + ((9 + 9) × (9 × 9 − 9)) := (9 − 9/9) × (((9 + 9)/9) + 9 × (9 + 9)) := 9 + (((9 + 9) × (9 × 9 − 9)) + ((99 + 9)/9)) 97 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1318 := 111+1+1 − 1 − 1 − 11 Ï 1323 := 1 + 1 + 1 + 11 × (111+1 − 1) Ï 1328 := 111+1+1 − 1 − 1 − 1 := 22 + (2 + 2 + 2)2+2 := (2/2 + 2) × ((22 − 2/2)2 ) := 2 × (((2/2 + 2) × 222) − 2) := 3 + (((3 + 3) × ((3 + 3)3 + 3)) + 3/3) := 33 + ((3 + 3)3/3+3 ) := ((33/3)3 ) − 3 := 4 + ((((4 + 4) × (4/4 + 4)4 ) + 44 )/4) := ((44/4)4−4/4 ) − 4 − 4 := ((4 − 4/4) × 444) − 4 := 5 × 5 × 55 − ((5 + 5)/5 + 55) := (5 × (5 × 55 − (5 + 5))) − (5 + 5)/5 := 5 + ((5 × (5 × 55 − (5 + 5))) − ((5 + 5)/5)) := ((6 + 6)/6) × (666 − 6/6 − 6) := 6 × 6 + ((66/6) × (666/6 + 6)) := 6 × 6 × 6 + (6666 + 6)/6 := 7 × 77 + (((7 + 7)/7) + 777) := 7 × ((7 + 7) × (7 + 7) − 7) := 7 + ((7 × ((7 + 7) × (7 + 7) − 7)) − ((7 + 7)/7)) := 88 × (8 + 8) − ((8 + 8)/8 + 88) := ((88/8)88/8−8 ) − 8 := 8 + 88 × (8 − 8/8 + 8) := 9 + ((9999/9 + 99) + 99) := 999 + (9 + 9) × (9 + 9) Ï 1319 := 111+1+1 − 1 − 11 Ï 1324 := 1 + 1 + 1 + 1 + 11 × (111+1 − 1) := 9 + ((((9 + 9)/9)99/9 ) − 9 × 9 × 9) Ï 1329 := 111+1+1 − 1 − 1 := 22 + ((2 + 2 + 2)2+2 + 2/2) := 2 + (((2 + 2 + 2) × (222 − 2)) + 2) := (22/2)2/2+2 − 2 := ((33/3)3 ) − (3 × 3 + 3) := ((33/3)3 ) − ((3/3 + 3) + 3) := 3/3 + (((33/3)3 ) − 3) := 4 + (((44/4)4−4/4 ) − 4 × 4) := 44 + (4 × 44 + 44 ) := (4 − 4/4) × (444 − 4/4) := 5 × 5 × 55 − (55 + 5/5) := (5 × (55 + 5)) + (5 − 5/5)5 := 5 + ((5 × (55 + 5)) + (5 − 5/5)5 ) := (((6 + 6) × (666 − 6)) − 6)/6 := ((6 + 6)/6)6 + (6 × (6 × 6 × 6 − 6)) := 6 × 6 × 6 × 6 + (66 × 6/(6 + 6)) := 7 + ((7 × ((7 + 7) × (7 + 7) − 7)) − (77/7)) := 7/7 + (7 × ((7 + 7) × (7 + 7) − 7)) := 88 × (8 + 8) − (8/8 + 88) := (((88 + 8)/8) × 888/8) − 8 := (((9 + 9)/9)99/9 ) − 9 × 9 × 9 := 9/9 + ((9 + 9) × (9 + 9) + 999) Ï 1325 := 111+1+1 − (1 + 1) × (1 + 1 + 1) Ï 1320 := 11 × (111+1 − 1) := (2 + 2 + 2) × (222 − 2) := 2 + ((2/2 + 2) × ((22 − 2/2)2 )) := (3/3 + 3) × (333 − 3) := ((33/3)3 ) − (3 + 3) := (4 − 4/4) × (444 − 4) := 44 + ((4 × 44 + 4/4) + 44 ) := 55 × (5 × 5 − 5/5) := 5 × (5 × 55 − (5 + 5)) := (6 + 6) × ((666 − 6)/6) := (6 × (6 × 6 × 6 + 6)) − 6/6 − 6 := (77 + 7)/7 × (777 − 7)/7 := ((7 + 7)/7) + (7 × ((7 + 7) × (7 + 7) − 7)) := 88 × (8 − 8/8 + 8) := 8 + ((88/8 × (888/8 + 8)) + 8) := 99/9 × (999/9 + 9) := 9 + ((((9 + 9) × (9 × 9 − 9)) + (99/9)) + 9) Ï 1321 := 1 + 11 × (111+1 − 1) Ï 1326 := 111+1+1 − 1 − 1 − 1 − 1 − 1 := 7 + ((7 × ((7 + 7) × (7 + 7) − 7)) − 7/7) := 8 + (88 × (8 − 8/8 + 8) + 8/8) := 9 + 99/9 × (999/9 + 9) Ï 1330 := 111+1+1 − 1 := ((2 + 2 + 2) × 222) − 2 := ((33/3)3 ) − 3/3 := ((44/4)4−4/4 ) − 4/4 := 5 + (5 × (5 × 55 − (5 + 5))) := ((6 + 6)/6) × (666 − 6/6) := 7 + (7 × ((7 + 7) × (7 + 7) − 7)) := ((88/8)88/8−8 ) − 8/8 := (9/9 + 9 + 9) × (9 × 9 − 99/9) Ï 1331 := 111+1+1 := (22/2)2/2+2 := 2/2 + ((2 + 2 + 2) × (222 − 2)) := (2/2 + 2) × (2 × 222 − 2) := ((3 − 33)/3) + ((33/3)3 ) := 3 + (((3 + 3)3/3+3 ) + 33 ) := 4/4 + ((4 − 4/4) × (444 − 4)) := (4 − 4/4) × (444 − (4 + 4)/4) := 5 × 5 + ((5/5 + 5)5−5/5 ) := 5/5 + (5 × (5 × 55 − (5 + 5))) := (55/5)5−(5+5)/5 := (6 × (6 × 6 × 6 + 6)) − 66/6 := (6 × (6 × 6 × 6 + 6)) − 6 := (66/6)6×6/(6+6) := (7 × ((7 + 7) × (7 + 7) − 7)) − (7 + 7)/7 := (7/7 + 77) × ((77 − 7)/7 + 7) := (77/7)(7+7+7)/7 := 8/8 + 88 × (8 − 8/8 + 8) := 8 + (88 × (8 + 8) − ((8 + 8)/8 + 88)) := (88/8)88/8−8 := 9 + ((9 − 9/9) × (((9 + 9)/9) + 9 × (9 + 9))) := ((9 − 9/9) + 9) × (9 × 9 − ((9 + 9 + 9)/9)) := (99/9)(9+9+9)/9 Ï 1322 := 1 + 1 + 11 × (111+1 − 1) Ï 1327 := 111+1+1 − 1 − 1 − 1 − 1 := 2 + ((2 + 2 + 2) × (222 − 2)) := (22/2) 3 2/2+2 −2−2 3 := ((33/3) ) − 3 × 3 := (33/3)3 := (44/4)4−4/4 Ï 1332 := 1 + 111+1+1 := (2 + 2 + 2) × 222 := ((33/3) ) − (3/3 + 3) := 3/3 + ((33/3)3 ) := 44 + ((4 × 4 − (4 + 4)/4) + 4 ) := ((44/4)4−4/4 ) − 4 := (4 − 4/4) × 444 := (5 + 5)/5 + (55 × (5 × 5 − 5/5)) := (5 + 5)/5 + (5 × (5 × 55 − (5 + 5))) := ((55 + 5)/5) × 555/5 := ((6 + 6)/6) × ((666 − 6) + 6/6) := 6/6 + ((6 × (6 × 6 × 6 + 6)) − 6) := 6 × (6 × 6 × 6 + 6) := (7 × ((7 + 7) × (7 + 7) − 7)) − 7/7 4 4 := 7 × 77 + (77/7 + 777) := (77 + 7)/7 × 777/7 := (8 + 8)/8 + 88 × (8 − 8/8 + 8) := 8 + (88 × (8 + 8) − (8/8 + 88)) := ((88 + 8)/8) × 888/8 := 9 × (9 × 9 + 9) + (((9 + 9)/9)9 ) := 9 + (((9999/9 + 99) + 99) + 9) := 9 + ((9 + 9) × (9 + 9) + 999) 98 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1338 := 11 + 111+1+1 − 1 − 1 − 1 − 1 Ï 1333 := 1 + 1 + 111+1+1 := 2 + (22/2)2/2+2 := (2/2 + 2) × (2 × 222 + 2) Ï 1343 := 1 + 11 + 111+1+1 := 22/2 + ((2 + 2 + 2) × 222) := 3 + (((33/3)3 ) − 3/3) := 3 + ((((33/3) ) + 3/3) + 3) := 3 + (((33/3)3 ) + 3 × 3) := 4/4 + ((4 − 4/4) × 444) := (4 + 4)/4 × ((4/4 + 4)4 + 44) := 4 + ((((44/4)4−4/4 ) + 4) + 4) := ((555 × ((55 + 5)/5)) + 5)/5 := 5 × 5 × 55 − (((5 + 5)/5)5 + 5) := 5 × 5 × 55 − ((5 + 5)/5)5 := 6/6 + (6 × (6 × 6 × 6 + 6)) := 6 + (6 × (6 × 6 × 6 + 6)) := 66/6 + (6 × (6 × 6 × 6 + 6)) 3 := ((777 × (77 + 7)/7) + 7)/7 := 7 + ((77/7) := 88 × (8 + 8) − (88/8 + 8 × 8) := 8 + (((88/8)88/8−8 ) − 8/8) := 88 × (8 + 8) − (8/8 + 8 × 8) := 9 + (((9 + 9) × (9 + 9) + 999) + 9/9) := 9 × 9 × (9 + 9) − (999/9 + 9) := ((9 − 9/9) + 9) × (9 × 9 − ((9 + 9)/9)) Ï 1334 := 1 + 1 + 1 + 111+1+1 (7+7+7)/7 ) Ï 1339 := 11 + 111+1+1 − 1 − 1 − 1 := 2 + ((2 + 2 + 2) × 222) := ((77 − 7)/7 + 7) × ((7 + 7)/7 + 77) Ï 1344 := (1 + 11) × (1 + 111) := 2 × (2 + 2) + (22/2)2/2+2 := (2 + 2 + 2) × (222 + 2) := 3 × 3 + (((33/3)3 ) − 3/3) := (3/3 + 3) × (333 + 3) := 4 + (((44/4)4−4/4 ) + 4) := 4 × ((4 × (4 × 4 + 4)) + 44 ) := (5 × (5 × 55 − 5)) − (55/5 + 5) := (5 × (5 × 55 − 5)) − 55/5 := (5 × 5 − 5/5) × (55 + 5/5) := (6 + 6)/6 + (6 × (6 × 6 × 6 + 6)) := 6 + ((6 × (6 × 6 × 6 + 6)) + 6/6) := 6 + ((6 × (6 × 6 × 6 + 6)) + 6) := 77/7 + (7 × ((7 + 7) × (7 + 7) − 7)) := 7 + ((77 + 7)/7 × 777/7) := (7 + 7) × (7 × (7 + 7) − ((7 + 7)/7)) := 888 + (8 × (8 × 8 − 8) − ((8 + 8)/8)) := 8 + ((88/8)88/8−8 ) := 8 × (88 − 8 + 88) 3 := 3 + ((33/3) ) := 4 + (((44/4) 4−4/4 ) − 4/4) := 99/9 + ((9 + 9) × (9 + 9) + 999) Ï 1335 := 1 + 1 + 1 + 1 + 111+1+1 := 2 + ((22/2) 2/2+2 + 2) := 9 + ((9/9 + 9 + 9) × (9 × 9 − (99/9))) Ï 1340 := 11 + 111+1+1 − 1 − 1 := (2 × 22) + (2 + 2 + 2)2+2 := ((99 + 9)/9) × ((999 + 9)/9) Ï 1345 := 1 + (1 + 11) × (1 + 111) := 2/2 + ((2 + 2 + 2) × (222 + 2)) := 3 + (((33/3)3 ) + 33/3) := 3 + (((33/3)3 ) + 3/3) := 3 × 3 + ((33/3)3 ) := 4 + ((44/4)4−4/4 ) := 44 + ((4 + 4)/4 + 4)4 := 5 + ((5 × (5 × 55 − (5 + 5))) + 5) := (5 × (5 × 55 − 5)) − 5 − 5 := (6 × 6/(6 + 6)) + (6 × (6 × 6 × 6 + 6)) := 6 + ((6 × (6 × 6 × 6 + 6)) + ((6 + 6)/6)) := (77 + 7)/7 + (7 × ((7 + 7) × (7 + 7) − 7)) := 7 + (((777 × (77 + 7)/7) + 7)/7) := 7 + (((77/7)(7+7+7)/7 ) + 7) := (8 − 8/8 + 8) × (8/8 + 88) := 8 + (((88 + 8)/8) × 888/8) := 8/8 + 8 × (88 − 8 + 88) := (9 − (9 × 9 × 99))/(((9 + 9 + 9)/9) − 9) := 9 + (99/9)(9+9+9)/9 := 9 × (9 + 9 + 9) + (9999/9 − 9) Ï 1336 := 1 + 1 + 1 + 1 + 1 + 111+1+1 := 2 + (((2 + 2 + 2) × 222) + 2) := 4/4 + ((4 × (4 × 4 + 44 )) + 44 ) := (5 × (5 × 55 − 5)) − 5 := (((6 + 6) × (666 + 6)) + 6)/6 Ï 1346 := 1 + 1 + (1 + 11) × (1 + 111) Ï 1341 := 11 + 111+1+1 − 1 := (2 × ((22 + 2 + 2)2 )) − 22/2 := 2 + ((2 + 2 + 2) × (222 + 2)) := 3 + ((((33/3) ) − 3/3) + 3) := 33 + ((3 + 3) × ((3 + 3)3 + 3)) := 3 + ((((33/3)3 ) + 3 × 3) + 3) := 4 + ((4 − 4/4) × 444) := 44 + (((4 + 4)/4 + 4)4 + 4/4) := 4 + (((44/4)4−4/4 ) + 44/4) := 5 + (((55/5)5−(5+5)/5 ) + 5) := 5/5 + ((5 × (5 × 55 − 5)) − 5) 3 := 5 + ((55/5)5−(5+5)/5 ) := 6 + (((6 + 6)/6) × (666 − 6/6)) := 7 + (((7 × ((7 + 7) × (7 + 7) − 7)) − 7/7) + 7) := 888 + 8 × (8 × 8 − 8) := 9 × 99 + (((9 × 9 × 99) − 9)/(9 + 9)) Ï 1337 := 1 + 1 + 1 + 1 + 1 + 1 + 111+1+1 := 6 + ((6 × (6 × 6 × 6 + 6)) + (6 × 6/(6 + 6))) := 7 + ((7 × ((7 + 7) × (7 + 7) − 7)) + (77/7)) := 8 + (88 × (8 + 8) − (88/8 + 8 × 8)) := 9 × 9 × (9 + 9) − (99 + 9 + 9) := ((6 + 6)/6) × (666 + 6/6 + 6) := 7 + (((77 + 7)/7 × 777/7) + 7) := (8 + 8)/8 + 8 × (88 − 8 + 88) := 9 × 9 × (9 + 9) − ((999 + 9)/9) Ï 1347 := 1 + 1 + 1 + (1 + 11) × (1 + 111) Ï 1342 := 11 + 111+1+1 := ((2 + 2 + 2) × (222 + 2)) − 2 := 22+2 + (22/2)2/2+2 := 3 + (((33/3)3 ) + 3) := 33/3 + ((33/3)3 ) := 3 + ((3/3 + 3) × (333 + 3)) := 4 + (((4 − 4/4) × 444) + 4/4) := 44/4 + ((44/4)4−4/4 ) := 4 × 4 + ((44/4)4−4/4 ) := 5 + (((55 + 5)/5) × 555/5) := 55/5 × ((555 + 55)/5) := (5 + 5)/5 + ((5 × (5 × 55 − 5)) − 5) := 2 + (((22/2) := 6 + ((66/6) 2/2+2 + 2) + 2) 6×6/(6+6) ) := 66/6 × ((666 + 66)/6) := ((66/6) × ((666/6 + 6) + 6)) − 6 := 7 + ((7 × ((7 + 7) × (7 + 7) − 7)) + 7) := 77/7 × (777 + 77)/7 := 7 × 7 + 77/7 × (777/7 + 7) := 8/8 + (8 × (8 × 8 − 8) + 888) := 88/8 × ((888 + 88)/8) := 8 + (((88/8)88/8−8 ) + 8) := 9 × 99 + (((9 × 9 × 99) + 9)/(9 + 9)) := 99/9 × (999 + 99)/9 := 9 × 9 × (9 + 9) − 999/9 99 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1348 := 1 + 1 + 1 + 1 + (1 + 11) × (1 + 111) 2 Ï 1353 := 11 × (1 + 1 + 111+1 ) Ï 1358 := 1 + 1 + (1 + 11) × (1 + 1 + 111) := 2 + (2 × (((22 + 2 + 2)2 ) + 2)) 2/2+2 := 2 × (((22 + 2 + 2) ) − 2) := 22 + (22/2) := 3 + ((((33/3)3 ) + 33/3) + 3) := 3 + ((3 + 3) × ((3 + 3)3 + 3 × 3)) := 33 + ((33/3)3 ) := 4 × ((4 − 4/4)4 + 44 ) := 4 + ((4 × ((4 − 4/4)4 + 44 )) + 4/4) := 4 + ((44 × (44 − 4) − 44 )/(4 + 4)) := (5 × (5 × 55 − 5)) − (5 + 5)/5 := 5 + ((5 × (5 × 55 − 5)) − ((5 + 5)/5)) := (5 + 5)/5 × ((55 − 5)/5 + 55) := 6 + ((6 × (6 × 6 × 6 + 6)) + ((66 − 6)/6)) := 66/6 × ((666/6 + 6) + 6) := 66 + ((6 × 6 × 6 × 6 − 6) + ((6 + 6)/6)) := (77/7 − 7) × ((7 × 7 × 7 − 7) + 7/7) := 77/7 × ((777 + 77 + 7)/7) := (7 + 7) × (7 × (7 + 7) − 7/7) := 8 + ((((88 + 8)/8) × 888/8) + 8) := 8 + (8 × (88 − 8 + 88) + 8/8) := 8 + ((8 − 8/8 + 8) × ((8 + 8)/8 + 88)) := 9 × 9 × (9 + 9) + ((9 − 999)/9) := 9 + (((99 + 9)/9) × ((999 + 9)/9)) := 9 × 9 × (9 + 9) − (9/9 + 99) Ï 1349 := 111+1+1 + (1 + 1) × (11 − 1 − 1) 2 Ï 1354 := 1 + 11 × (1 + 1 + 111+1 ) Ï 1359 := 1 + 1 + 1 + (1 + 11) × (1 + 1 + 111) := 2/2 + (2 × (((22 + 2 + 2) ) − 2)) := 2 + (2 × ((22 + 2 + 2)2 )) := 2 + ((2 × (((22 + 2 + 2)2 ) + 2)) + 2/2) := (3 × (3 + 3)) + ((33/3)3 ) := (3333 + 33+3 )/3 := 3 × ((3 × (3 + 3) × 33 ) − 33) := 4/4 + (4 × ((4 − 4/4) + 4 )) := (44 × (44 − 4) − 44 )/(4 + 4) := 44 + (4444/4 − (4 + 4)) := (5 × (5 × 55 − 5)) − 5/5 := 5 + ((5 × (5 × 55 − 5)) − 5/5) := 5 × 5 × 55 − (55/5 + 5) := 6 + ((6 × (6 × 6 × 6 + 6)) + (66/6)) := ((6 + 6)/6) × (666 + (66/6)) := 6 + ((66/6) × ((666/6 + 6) + 6)) := 7 + (77/7 × (777 + 77)/7) := (7 × (7 + 7) × (7 + 7)) − (77/7 + 7) := 7/7 + ((7 + 7) × (7 × (7 + 7) − 7/7)) 4 4 := (88/8 + 8) × ((8 × 8 − 8/8) + 8) := 8 + (8 × (88 − 8 + 88) + ((8 + 8)/8)) := (8/8 + 8) × ((88 − 8/8) + 8 × 8) := 9 + ((99/9)(9+9+9)/9 + 9) := 9 × (9 + 9 + 9) + 9999/9 := 9 × 9 × (9 + 9) − 99 Ï 1350 := 111+1+1 + (1 + 1) × (11 − 1) − 1 Ï 1355 := 11 + (1 + 11) × (1 + 111) Ï 1360 := 1 + 1 + 1 + 1 + (1 + 11) × (1 + 1 + 111) := (2 × ((22 + 2 + 2) )) − 2 := 2 + ((2 × ((22 + 2 + 2) )) + 2/2) := 2 × ((((22 + 2 + 2)2 ) + 2) + 2) := (3 + 3) × ((3 + 3)3 + 3 × 3) := 33 + (((33/3)3 ) − 3) := 3 + ((((33/3)3 ) − 3/3) + 33 ) := 44 + ((4444 − 4)/4 − 4 × 4) := (4/4 + 4) × ((44/4 + 44 ) + 4) := 4 × (4 × ((4 − 4/4)4 + 4)) := 5 × (5 × 55 − 5) := 5 + (5 × (5 × 55 − 5)) := 5 + ((5 × (5 × 55 − 5)) + 5) := 6 + (((6 × (6 × 6 × 6 + 6)) + 6) + 6) := 66 + (6 × 6 × 6 × 6 − (6/6 + 6)) := ((6 + 6)/6)6 + 6 × 6 × 6 × 6 := ((77 − 7)/7) × (((7 + 7)/7)7 + 7) := ((7 − 77)/7) + ((7 × (7 + 7) × (7 + 7)) − 7) := (7 × (7 + 7) × (7 + 7)) − (77 + 7)/7 := (8 − 8/8 + 8) × ((8 + 8)/8 + 88) := 88/8 + 8 × (88 − 8 + 88) := (88 − 8) × (8/8 + 8 + 8) := 9 × 9 × (9 + 9) − (99 + 9) := 9 + (9 × 9 × (9 + 9) − ((999 + 9)/9)) := 9/9 + (9 × 9 × (9 + 9) − 99) 2 Ï 1351 := 111+1+1 + (1 + 1) × (11 − 1) 2 Ï 1356 := (1 + 11) × (1 + 1 + 111) Ï 1361 := 111+1+1 + (11 − 1) × (1 + 1 + 1) := (2 × ((22 + 2 + 2)2 )) − 2/2 := 2 × (((22 + 2 + 2)2 ) + 2) := 2/2 + (2 × ((((22 + 2 + 2)2 ) + 2) + 2)) := 3 × 3 + (((33/3)3 ) + 33/3) := (3/3 + 3) × ((333 + 3) + 3) := 3 + (((33/3)3 ) + 33 ) := 4 + (((44/4)4−4/4 ) + 4 × 4) := (4 − 4/4) × (444 + 4 + 4) := 4/4 + (4 × (4 × ((4 − 4/4)4 + 4))) := 5/5 + (5 × (5 × 55 − 5)) := 5 + ((5 × (5 × 55 − 5)) + 5/5) := 55/5 + (5 × (5 × 55 − 5)) := 6 + ((((6 + 6) × (666 + 6)) + 6)/6) := 66 + (6 × 6 × 6 × 6 − 6) := 66 + (6 × 6 × 6 × 6 − 6/6) 7 := 77 + (7 + 7) × (77 + 7 + 7) := (7 − 7/7) × (((7 + 7)/7) + 7 × (7 + 7)) := (7 × (7 + 7) × (7 + 7)) − 77/7 := 8 + (88 × (8 + 8) − (8/8 + 8 × 8)) := ((88 + 8)/8) + 8 × (88 − 8 + 88) := 8/8 + (88 − 8) × (8/8 + 8 + 8) := 9/9 + (9 × 9 × (9 + 9) − (99 + 9)) := 9 + (9 × 9 × (9 + 9) − 999/9) := (9 + 9)/9 + (9 × 9 × (9 + 9) − 99) Ï 1352 := 11 × (1 + (1 + 111+1 )) − 1 Ï 1357 := 1 + (1 + 11) × (1 + 1 + 111) Ï 1362 := 11 × (1 + 1 + 1 + 111+1 ) − 1 − 1 := 2 × ((22 + 2 + 2)2 ) := 2/2 + (2 × (((22 + 2 + 2)2 ) + 2)) := (22 × (22+2+2 − 2)) − 2 := 3 + (((33/3)3 ) + (3 × (3 + 3))) := 33 + (((33/3)3 ) − 3/3) := (3 + 3) × ((3 + 3)3 + 33/3) := 4 + (4 × ((4 − 4/4)4 + 44 )) := 4/4 + ((4 − 4/4) × (444 + 4 + 4)) := 44 + ((4444 − 4)/4 − 4) := (5 + 5)/5 + (5 × (5 × 55 − 5)) := 5 + ((5 × (5 × 55 − 5)) + ((5 + 5)/5)) := (5 + 5)/5 × ((55 + 5)/5 + 55) := 6 + (((6 + 6)/6) × (666 + 6/6 + 6)) := 66 + ((6 × 6 × 6 × 6 − 6) + 6/6) := 66 + 6 × 6 × 6 × 6 := (7 − 7/7 + 7) × (777/7 − 7) := (7 × (7 + 7) × (7 + 7)) − (7/7 + 7 + 7) := ((7 − 77)/7) + (7 × (7 + 7) × (7 + 7)) := 8 + 8 × (88 − 8 + 88) := 8 + ((88/8 + 8) × ((8 × 8 − 8/8) + 8)) := (8 + 8)/8 + (88 − 8) × (8/8 + 8 + 8) := 9 + (((9 − 9/9) + 9) × (9 × 9 − ((9 + 9)/9))) := 9 × 9 × (9 + 9) − ((9 + 9)/9 + 99) := 999 + ((99 × 99)/(9 + 9 + 9)) 100 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1363 := 11 × (1 + 1 + 1 + 111+1 ) − 1 Ï 1368 := (1 + 11) × (1 + 1 + 1 + 111) Ï 1373 := 1 + (1 + 1 + 1 + 11)1+1+1 /(1 + 1) := 22/2 + (2 × ((22 + 2 + 2)2 )) := (2 × 222 ) + (22 − 2)2 := 2 + ((((2 + 2 + 2)2 + 2/2)2 ) + 2) := 33 + (((33/3)3 ) − 3/3) := (3 + 3) × (((3 + 3)3 + 3 × 3) + 3) := 3 × 3 + (((33/3)3 ) + 33) := 44 + (4444/4 − 4) := 4 + (44 × (4 × (4 + 4) − 4/4)) := 4/4 + (((4 + 4) × (4 × 44 − 4)) − 4) := 5 × 5 × 55 − (55 + 5)/5 := 5 × 5 × 55 − ((5 + 5)/5 + 5) := 5 × 5 × 55 − (5 + 5)/5 := 66 + (6 × 6 × 6 × 6 + 6/6) := 6 × (6 × 6 × 6 + 6 + 6) := 6 + ((6 × (6 × 6 × 6 + 6 + 6)) − 6/6) := (7 × (7 + 7) × (7 + 7)) − ((7 + 7)/7 + 7) := (77/7 + 7) × (77 − 7/7) := 7/7 + (7 × (7 + 7) × (7 + 7)) := 8 + (8 × (88 − 8 + 88) + (88/8)) := 88 + (8 + 8) × (88 − 8) := 8 × 8 + (88/8 × (888/8 + 8)) := 9 + (9999/9 + 9 × (9 + 9 + 9)) := 9 × (9 × (9 + 9) − 9) − 9 := ((9 − 9 × 9)/(9 + 9)) + 9 × (9 × (9 + 9) − 9) Ï 1364 := 11 × (1 + 1 + 1 + 111+1 ) Ï 1369 := (111/(1 + 1 + 1))1+1 Ï 1374 := 11 × (1 + 1 + 1 + 1 + 111+1 ) − 1 := 22 × (22+2+2 − 2) := ((2 + 2 + 2)2 + 2/2)2 := 22 + (2 × ((22 + 2 + 2)2 )) := 33 + ((33/3)3 ) := (3/3 + 33 + 3)3−3/3 := 33+3 + (3 × (3 + 3)3 − 3) := 44 × (4 × (4 + 4) − 4/4) := 4 + ((((4 + 4)4 ) − 4/4)/(4 − 4/4)) := ((4 + 4) × (4 × 44 − 4)) − (4 + 4)/4 := 5 × 5 × 55 − 55/5 := 5 × 5 × 55 − (5/5 + 5) := 5 × 5 × 55 − 5/5 := 66 + (6 × 6 × 6 × 6 + ((6 + 6)/6)) := (6 × 6 + 6/6) := 6 + (6 × (6 × 6 × 6 + 6 + 6)) := (7 × (7 + 7) × (7 + 7)) − (7/7 + 7) := (7 × (7 + 7) × (7 + 7)) − (7 + 7 + 7)/7 := ((7 + 7)/7) + (7 × (7 + 7) × (7 + 7)) := 88 × (8 + 8) − (88/((8 + 8)/8)) := 8/8 + ((8 + 8) × (88 − 8) + 88) := ((8 + 8)/8) × (8 × 88 − (8/8 + 8 + 8)) := 999 + (((9 × 9 × 9 × 9) + 9)/(9 + 9)) := 9/9 + (9 × (9 × (9 + 9) − 9) − 9) := 9 × (9 × (9 + 9) − 9) − (9 + 9 + 9)/9 Ï 1365 := 1 + 11 × (1 + 1 + 1 + 111+1 ) (6+6)/6 Ï 1375 := 11 × (1 + 1 + 1 + 1 + 111+1 ) Ï 1370 := 1 + (111/(1 + 1 + 1))1+1 := 2/2 + (22 × (22+2+2 − 2)) := 2 + ((2 × 222 ) + (22 − 2)2 ) := (2 × 22) + (22/2)2/2+2 := 3/3 + (((33/3)3 ) + 33) := 3 + ((((33/3)3 ) + 33) + 3) := 33/3 × ((3 − 3/3 + 3)3 ) := (((4 + 4)4 ) − 4/4)/(4 − 4/4) := 4 + ((4444 − 4)/4 + 44 ) := 44 + ((44/4)4−4/4 ) := 5 × 5 × 55 − 5 − 5 := 5 × 5 × 55 − 5 := 5 × 5 × 55 := 6 + ((6 × 6 + 6/6)(6+6)/6 ) := (6/6 + 6 + 6) × (666/6 − 6) := 6/6 + ((6 × 6 + 6/6) := (7 × (7 + 7) × (7 + 7)) − 7 := (7 × (7 + 7) × (7 + 7)) − (7 + 7)/7 := 7 + ((77/7 + 7) × (77 − 7/7)) := (8 − 8/8 + 8) × ((88/8 − 8) + 88) := 88 + ((8 + 8) × (88 − 8) + ((8 + 8)/8)) := ((8 + 8) × (88 − ((8 + 8)/8))) − 8/8 := 9 × (9 × (9 + 9) − 9) − (99 + 9)/9 := (9 + 9)/9 + (9 × (9 × (9 + 9) − 9) − 9) := 9 × (9 × (9 + 9) − 9) − (9 + 9)/9 Ï 1366 := 11 + (1 + 11) × (1 + 1 + 111) − 1 2+2+2 (6+6)/6 ) Ï 1371 := 1 + 1 + (111/(1 + 1 + 1))1+1 Ï 1376 := 1 + (11 × (1 + 1 + 1 + 1 + 111+1 )) := 2 + (((2 + 2 + 2)2 + 2/2)2 ) := 22+2 × (2 × 2 × 22 − 2) := 3 + ((3 × ((3 + 3)3 − 3)) + 33+3 ) := 3 + ((((33/3)3 ) + 33) + 3 × 3) := 4 + (4444 − 4)/4 := 4 + (4444/4 + 44 ) := (4 + 4) × (4 × 44 − 4) := 5/5 + (5 × 5 × 55 − (5 + 5)) := 5/5 + (5 × 5 × 55 − 5) := 5/5 + 5 × 5 × 55 := 6 + (((6 + 6)/6) + 6 × 6 × 6 × 6) := 666/6 + (6 × (6 × 6 × 6 − 6)) := 6 + (((6 × 6 + 6/6)(6+6)/6 ) + 6/6) := 7/7 + ((7 × (7 + 7) × (7 + 7)) − 7) := (7 × (7 + 7) × (7 + 7)) − 7/7 := 77/7 + ((7 × (7 + 7) × (7 + 7)) − 7) := 88 + ((8 + 8) × (88 − 8) − ((8 + 8)/8)) := 88/8 + (88 − 8) × (8/8 + 8 + 8) := (8 + 8) × (88 − ((8 + 8)/8)) := 9 × (9 × (9 + 9) − 9) − 99/9 := 9 × 9 × (9 + 9) + (((99 + 9)/9) − 99) := 9 × (9 × (9 + 9) − 9) − 9/9 := 2 + (22 × (2 − 2)) 3 := 3 + ((((33/3) ) − 3/3) + 33) 4 6 Ï 1367 := 11 + (1 + 11) × (1 + 1 + 111) 2 2 := (((2 + 2 + 2) + 2/2) ) − 2 3 Ï 1372 := (1 + 1 + 1 + 11)1+1+1 /(1 + 1) 2 Ï 1377 := 1 + 1 + 11 × (1 + 1 + 1 + 1 + 111+1 ) := 2 + ((22/2)2/2+2 + 2 × 22) := 22 + (2 × 2 × 222) 3 := 3 + (((33/3) ) + 33) := (3/3 + 3) × (((3/3 + 3) + 3) ) := 33 × ((33 − 3) + 33 ) := 44 + 4444/4 := ((4 + 4) × (4 × 44 − 4)) − 4 := 4/4 + ((4 + 4) × (4 × 44 − 4)) := (5 + 5)/5 + (5 × 5 × 55 − (5 + 5)) := (5 + 5)/5 + (5 × 5 × 55 − 5) := (5 + 5)/5 + 5 × 5 × 55 6 := (6 × (6 × 6 × 6 + 6 + 6)) − 6/6 := 6 + ((((6 + 6)/6) + 6 × 6 × 6 × 6) + 6) := ((7 + 7)/7) + ((7 × (7 + 7) × (7 + 7)) − 7) := 6 + ((6 × (6 × 6 × 6 − 6)) + 666/6) := 7 × (7 + 7) × (7 + 7) := 7 + ((7 × (7 + 7) × (7 + 7)) − ((7 + 7)/7)) := 88 + ((8 + 8) × (88 − 8) − 8/8) := 888 + 88 × 88/(8 + 8) := 8/8 + ((8 + 8) × (88 − ((8 + 8)/8))) := 9 × (9 × (9 + 9) − 9) − 9/9 − 9 := 99 + (9999/9 + 9 × (9 + 9)) := 9 × (9 × (9 + 9) − 9) 101 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1378 := 11 + 11 + (1 + 11) × (1 + 1 + 111) Ï 1383 := 11 + ((1 + 1 + 1 + 11)1+1+1 /(1 + 1)) Ï 1388 := 1 + 111+1+1 + (1 + 111)/(1 + 1) := (2 × (22 − 2))2 − 222 := (2/2 + 2) × (222 − 22 − 2/2) := 2 + (22 × (22+2+2 − 2/2)) := 3 + (33/3 × ((3 − 3/3 + 3)3 )) := (33 × (3 × 3 + 33)) − 3 := 3 + ((((33/3)3 ) + 33 ) + 33 ) 4 := 44 + (4444 + 44)/4 := 4 × 4 + (4444/4 + 4 ) := (4 × ((4 + 4) × 44 − 4)) − 4 := 5 + (5 × 5 × 55 − ((5 + 5)/5)) := 5 + ((5 × 5 × 55 − ((5 + 5)/5)) + 5) := 5 × 5 × 55 + (55 + 5 + 5)/5 := ((66 − 6)/6) + (6 × (6 × 6 × 6 + 6 + 6)) := ((66 × (6 × 6 + 6)) − 6)/((6 + 6)/6) := 6 + ((((6 + 6)/6)66/6 ) − 666) := 7 + ((7 × (7 + 7) × (7 + 7)) − 7/7) := 77/7 + (7 × (7 + 7) × (7 + 7)) := ((7 + 7)/7) + (77 × (77/7 + 7)) := (8 + 8)/8 + ((8 + 8) × (88 − ((8 + 8)/8))) := 88 × (8 + 8) − (8/8 + 8 + 8 + 8) := 88 × (8 + 8) − ((88 + 8)/8 + 8) := 9/9 + 9 × (9 × (9 + 9) − 9) := 9 + (9 × (9 × (9 + 9) − 9) − ((9 + 9 + 9)/9)) := 99/9 + 9 × (9 × (9 + 9) − 9) Ï 1379 := 11 + (1 + 11) × (1 + 1 + 1 + 111) 2 := 2/2 + (2 × (22 − 2)) − 222 3 3 Ï 1384 := 1 + 11 + (1 + 1 + 1 + 11)1+1+1 /(1 + 1) 2 := 2 × (((22 + 2 + 2) ) + 2 2+2 ) Ï 1389 := (1 + 11111)/(1 + 1)1+1+1 := 22 + ((((2 + 2 + 2)2 + 2/2)2 ) − 2) := 3 × 3 + (((33/3) ) − 33) := 3/3 + ((33 × (3 × 3 + 33)) − 3) := 3 + (33 × (3 × 3 + 33)) := 4 + (((44/4)4−4/4 ) + 44) := 4 + (((4 + 4) × (4 × 44 − 4)) + 4) := 4/4 + ((4 × ((4 + 4) × 44 − 4)) − 4) := 5 + (5 × 5 × 55 − 5/5) := 5 + ((5 × 5 × 55 − 5/5) + 5) := 5 × (5 × 55 + 5) − 55/5 := 66/6 + (6 × (6 × 6 × 6 + 6 + 6)) := ((66 × ((66 − 6) + 66)) − (6 + 6))/6 := 666 + (((6 × 6/(6 + 6))6 ) − 6) := 7 + (7 × (7 + 7) × (7 + 7)) := (77 + 7)/7 + (7 × (7 + 7) × (7 + 7)) := 7 + ((7 × (7 + 7) × (7 + 7)) + ((77 − 7)/7)) := 88 + ((8 + 8) × (88 − 8) + (88/8)) := 88 × (8 + 8) − 8 − 8 − 8 := 88 × (8 + 8) − (88/8 + 8) := (9 + 9)/9 + 9 × (9 × (9 + 9) − 9) := 9 + (9 × (9 × (9 + 9) − 9) − ((9 + 9)/9)) := ((99 + 9)/9) + 9 × (9 × (9 + 9) − 9) Ï 1380 := 11 + ((111/(1 + 1 + 1))1+1 ) Ï 1385 := 111+1+1 + ((111 − 1)/(1 + 1) − 1) Ï 1390 := 11 × 111 + (1 + 1 + 11)1+1 := 2 + (2 × (22 − 2))2 − 222 := 22+2 + (((2 + 2 + 2)2 + 2/2)2 ) := (2 × (222 + 222 )) − 22 := 3 + (3 × (3 + 3)3 + 33+3 ) := 33 + (((33/3)3 ) + 33 ) := 3 + ((33 × (3 × 3 + 33)) + 3/3) 4 := (44 × (4 − 4)/(4 + 4)) − 4/4 := 4 + (44 × (44 − 4)/(4 + 4)) := 5 + 5 × 5 × 55 := 5 + (5 × 5 × 55 + 5) := 5 + ((5 × 5 × 55 + 5) + 5) := 6 + ((6 × (6 × 6 × 6 + 6 + 6)) + 6) := ((66 × ((66 − 6) + 66)) − 6)/6 := 666 + ((66 × 66 − 6 − 6)/6) := 7 + ((7 × (7 + 7) × (7 + 7)) + 7/7) := (77 × (77/7 + 7)) − 7/7 := 7 + ((7 × (7 + 7) × (7 + 7)) + (77/7)) := 8 + (88 × 88/(8 + 8) + 888) := 8/8 + (88 × (8 + 8) − (8 + 8 + 8)) := ((8 + 8)/8) × (8 × 88 − (8/8 + 8)) := ((9 + 9 + 9)/9) + 9 × (9 × (9 + 9) − 9) := 9 + (9 × (9 × (9 + 9) − 9) − 9/9) := 9 × 99 + (((9 × 999) − 9)/(9 + 9)) := 4 + ((4 + 4) × (4 × 44 − 4)) Ï 1381 := 1 + 11 + ((111/(1 + 1 + 1))1+1 ) 2 := 2 + (2 × (22 − 2)) − 222 + 2/2 3 Ï 1386 := 11 × (1 + 1 + 1 + 1 + 1 + 111+1 ) Ï 1391 := (1 + 1 + 11) × (111 − 1 − 1 − 1 − 1) 2+2+2 := 22 + (((2 + 2 + 2)2 + 2/2)2 ) := 22 × (2 − 2/2) := 3 + ((33/3 × ((3 − 3/3 + 3) )) + 3) := 33 × (3 × 3 + 33) := 33 + (((33/3)3 ) + 33) := 4 + (((4 + 4) × (4 × 44 − 4)) + 4/4) := 44 × (44 − 4)/(4 + 4) := (4 × ((4 + 4) × 44 − 4)) − 4/4 := 5 + (5 × 5 × 55 + 5/5) := 55/5 + 5 × 5 × 55 := 5 + (5 × 5 × 55 + (55/5)) := 6 + (((6 × 6 + 6/6)(6+6)/6 ) + 6) := 6 × ((66 × (6 × 6 + 6))/(6 + 6)) := 666 + ((66 × 66 − 6)/6) := 7 + ((7 × (7 + 7) × (7 + 7)) + ((7 + 7)/7)) := 77 × (77/7 + 7) := 7 + ((7 × (7 + 7) × (7 + 7)) + (77 + 7)/7) := 88 × (8 + 8) − (88/8 + 8 + 8) := ((8 + 8)/8) × (8 × 88 − (88/8)) := 88 × (8 + 8) − (8/8 + 8 + 8) := 9 × (9 × (9 + 9) − 9) + ((9 × 9 − 9)/(9 + 9)) := 9 + 9 × (9 × (9 + 9) − 9) := 9 × 99 + (((9 × 999) + 9)/(9 + 9)) Ï 1382 := 1 + 1 + 11 + ((111/(1 + 1 + 1))1+1 ) 2 := 2 + (2 × (22 − 2)) − 222 + 2 3 3 3 := 3 + ((((33/3) ) − 3) + 3 ) 4 Ï 1387 := 111+1+1 + (1 + 111)/(1 + 1) Ï 1392 := (1 + 11) × (1 + 1 + 1 + 1 + 1 + 111) := 2/2 + (22 × (22+2+2 − 2/2)) := 2 × ((((22 + 2 + 2)2 ) − 2) + 22) := 3/3 + (33 × (3 × 3 + 33)) := 3 + ((33 × (3 × 3 + 33)) + 3) 4 := (44 × (4 − 4)/(4 + 4)) − 4 := 4/4 + (44 × (4 − 4)/(4 + 4)) := 4 × ((4 + 4) × 44 − 4) := 5 + (5 × 5 × 55 + ((5 + 5)/5)) := 5 × 5 × 55 + (55 + 5)/5 := 5 + (5 × 5 × 55 + ((55 + 5)/5)) := ((66 × ((66 − 6) + 66)) + 6)/6 := 66 + ((6 × (6 × 6 × 6 + 6)) − 6) := ((77 − 7)/7) + (7 × (7 + 7) × (7 + 7)) := 7/7 + (77 × (77/7 + 7)) := 7 + ((77 × (77/7 + 7)) − 7/7) := (8 − 88)/8 + ((8 + 8) × (88 − 8/8)) := (88/8 + 8) × ((8/8 + 8 × 8) + 8) := (8 + 8) × (88 − 8/8) := 9 × (9 × (9 + 9) − 9) + ((9 × 9 + 9)/(9 + 9)) := 9 + (9 × (9 × (9 + 9) − 9) + 9/9) := 9 × 99 + ((((9 + 9)/9)9 ) − (99/9)) 66/6 := (((6 + 6)/6) ) − 666 102 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1393 := 1 + ((1 + 11) × (1 + 1 + 1 + 1 + 1 + 111)) Ï 1398 := 1 + (11 × (111 + (1 + 1)1+1+1+1 )) Ï 1403 := (1 + 1 + 11) × (111 − 1 − 1 − 1) − 1 := 2 + ((((2 + 2 + 2) + 2/2) ) + 22) := 2 + (2 × (((22 + 2 + 2) ) + 22)) := 22 × 22+2+2 − (2/2 + 2 + 2) := (((3 + 3) × (33+3 − 33)) + 3)/3 := 3 + ((3 × 3 + 3)3 − 333) := (3 × (33 − 3)) + ((33/3)3 ) := 4/4 + (4 × ((4 + 4) × 44 − 4)) := (4 − 44)/4 + 4 × (4 + 4) × 44 := 4 × (4 + 4) × 44 − (4/4 + 4) := 5 × (5 × 55 + 5) − ((5 + 5)/5 + 5) := 5 × (5 × 55 + 5) − (5 + 5)/5 := 5 + (5 × (5 × 55 + 5) − ((5 + 5)/5)) := 666 + ((66 × 66 + 6)/6) := 66 + (6 × (6 × 6 × 6 + 6)) := (6 × ((6 × 6 × 6 + 6 + 6) + 6)) − 6/6 := 7 + (77 × (77/7 + 7)) := ((7 + 7)/7) × (777 − (7/7 + 77)) := (((7 + 7 + 7)/7)7 ) − (777 + 7) := 8/8 + ((8 + 8) × (88 − 8/8)) := (8 − 88)/8 + 88 × (8 + 8) := 88/8 + ((8 + 8) × (88 − 8/8)) := 9 + ((9 × (9 × (9 + 9) − 9) − ((9 + 9)/9)) + 9) := 9 + (9 × (9 × (9 + 9) − 9) + ((99 + 9)/9)) := 9 × 99 + (((9 + 9)/9)9 ) 2 2 2 Ï 1394 := (1 + 1 + (1 + 111)1+1 )/(11 − 1 − 1) Ï 1399 := 1111 + ((1 + 1) × (1 + 11)1+1 ) := 2 × ((22/2)2 + ((22 + 2)2 )) := (2222 + ((22 + 2)2 ))/2 3 3 := 3 + ((((33/3) ) + 33) + 3 ) Ï 1404 := (1 + 1 + 11) × (111 − 1 − 1 − 1) := 2 × ((2 × (22 × 22+2 )) − 2) 3 := 3 + (((3 × 3 + 3) − 333) + 3/3) := 3 × ((3 + 3) × (3 × 33 − 3)) := 4 + ((44 × (4 − 4)/(4 + 4)) + 4) := 4 × (4 + 4) × 44 − ((4/4 + 4) + 4) := 4 × (4 + 4) × 44 − 4 := 5 × (5 × 55 + 5) − (5/5 + 5) := 5 × (5 × 55 + 5) − 5/5 := 5 + (5 × (5 × 55 + 5) − 5/5) := 666 + (((6 × 6/(6 + 6)) ) − 6/6) := 66 + ((6 × (6 × 6 × 6 + 6)) + 6/6) := 6 × ((6 × 6 × 6 + 6 + 6) + 6) := 7 + ((77 × (77/7 + 7)) + 7/7) := (((7 + 7) × (777 − 77)) − 7)/7 := (77/7 + 7) × (7/7 + 77) := (8 + 8)/8 + ((8 + 8) × (88 − 8/8)) := 88 × (8 + 8) − (8/8 + 8) := 88 × (8 + 8) − (8/((8 + 8)/8)) 4 6 9 := 9 × 99 + ((((9 + 9)/9) ) − 9) Ï 1395 := (11 − 1 − 1) × (11 + (1 + 11)1+1 ) := 2 2+2+2 + (22/2) := 999 + ((99/9 + 9) (9+9)/9 ) := 9 + ((9 × (9 × (9 + 9) − 9) + 9) + 9) Ï 1400 := (1 + (1 + 1 + 11)) × (11 − 1)1+1 Ï 1405 := 1 + ((1 + 1 + 11) × (111 − 1 − 1 − 1)) := 2 × (2 × ((22 × 22+2 ) − 2)) 2/2+2 := 22 × 22+2+2 − 2/2 − 2 3 := (3 × 3 + 3)3 − 333 := 3 + ((((33/3) ) + 33) + 33) := 3/3 + (3 × ((3 + 3) × (3 × 33 − 3))) := 4 + ((4 × ((4 + 4) × 44 − 4)) − 4/4) := (4 + 4) × (4 × 44 − 4/4) := 4/4 + (4 × (4 + 4) × 44 − 4) := 5 × (5 × 55 + 5) − 5 := 5 × (5 × 55 + 5) := 5 + 5 × (5 × 55 + 5) := 666 + ((6 × 6/(6 + 6)) ) := 66 + ((6 × (6 × 6 × 6 + 6)) + ((6 + 6)/6)) := 6 × 6 + ((6 × 6 + 6/6)(6+6)/6 ) := 7 + ((77 × (77/7 + 7)) + ((7 + 7)/7)) := 7 + ((77 × (77/7 + 7)) + 7) := 7 × (7 × 7 − 7) + 7777/7 := 8 × 8 + ((88/8)88/8−8 ) := 88 × (8 + 8) − 8 := 8 + (88 × (8 + 8) − (88/8)) := (99/9 + 9) × (9 × 9 − 99/9) := 9 + (((9 × (9 × (9 + 9) − 9) + 9/9) + 9) + 9) 6 := 9 + (9 × (9 × (9 + 9) − 9) + 9) Ï 1396 := 1 + ((11 − 1 − 1) × (11 + (1 + 11)1+1 )) 2 := 2 × (((22 + 2 + 2) ) + 22) := 3/3 + ((3 × 3 + 3)3 − 333) := 4 + (4 × ((4 + 4) × 44 − 4)) := 5/5 + (5 × (5 × 55 + 5) − 5) := ((6 + 6)/6)6 + (6 × (6 × 6 × 6 + 6)) Ï 1401 := 111+1+1 + (11 − 1 − 1)1+1 − 11 Ï 1406 := ((1 + 1 + 11) × (111 − 1 − 1)) − 11 := 2 + ((2222 + ((22 + 2)2 ))/2) := 22 × 22+2+2 − 2 3 := (3 × ((3 + 3) × (3 × 3 − 3))) − 3 := 3 + ((3 × (33 − 3)) + ((33/3)3 )) := 4 + (4 × (4 + 4) × 44 − 44/4) := 4 × (4 + 4) × 44 − (4 + 4)/4 := 5/5 + 5 × (5 × 55 + 5) := 5 + (5 × (5 × 55 + 5) + 5/5) := 6 + (((6 × 6/(6 + 6))6 ) + 666) := 6 × 6 × 6 × 6 + (666 − 6)/6 := ((77 − 7)/7) + (77 × (77/7 + 7)) := (77/7 × ((7 + 7)/7)7 ) − 7 := ((77 × ((7 + 7)/7)7 ) − (7 + 7))/7 := 88 × (8 + 8) − (88 + 8)/8 := 8/8 + (88 × (8 + 8) − 8) := 88 × (8 + 8) − (8 + 8)/8 := 9 + ((9 × (9 × (9 + 9) − 9) + 9/9) + 9) := 9 × 9 + 99/9 × (999/9 + 9) := 9 + ((9 × (9 × (9 + 9) − 9) + (99/9)) + 9) Ï 1397 := 11 × (111 + (1 + 1)1+1+1+1 ) Ï 1402 := (1 + 1 + 11) × (111 − 1 − 1 − 1) − 1 − 1 2+2 := 22/2 × ((22×(2+2) − 2)/2) := 2 + (2 × (2 × ((22 × 2 := 33 + (((33/3)3 ) + 33) := ((33/3) ) + (((3 + 3) − 3)/3) 3 ) − 2))) := 22 × 22+2+2 − 2/2 3 := 4 × (4 + 4) × 44 − 44/4 := 4 × 4 + (44 × (44 − 4)/(4 + 4)) := (5 + 5)/5 + (5 × (5 × 55 + 5) − 5) := (5 + 5)/5 + 5 × (5 × 55 + 5) Ï 1407 := 111 + ((1 + 1 + 1) × (1 + 11))1+1 := 3 + (3 × ((3 + 3) × (3 × 33 − 3))) := 4 × (4 + 4) × 44 − 4/4 6 := 5 × 5 × 55 + ((5 + 5)/5)5 := 66 + ((66/6)6×6/(6+6) ) := 6 + ((6 × (6 × 6 × 6 + 6)) + ((6 + 6)/6) ) := 666/6 + 6 × 6 × 6 × 6 := 77/7 + (77 × (77/7 + 7)) := (((77 × ((7 + 7)/7)7 ) + 7)/7) − 7 := (7 × ((7 + 7) × (7 + 7) + 7)) − (7 + 7) := 88 × (8 + 8) − 88/8 := (8 + 8)/8 + (88 × (8 + 8) − 8) := 88 × (8 + 8) − 8/8 := 9 + (9 × (9 × (9 + 9) − 9) + (99/9)) 9 := 9 × 99 + ((((9 + 9)/9) ) − 9/9) 103 := 999/9 + ((9 + 9) × (9 × 9 − 9)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1408 := 11 × ((1 + 1)1+(1+1)×(1+1+1) ) Ï 1413 := 1 + (111+1+1 + (11 − 1 − 1)1+1 ) Ï 1418 := 1 + ((1 + 1 + 11) × (111 − 1 − 1)) := 2/2 + (2 × (222 + 22 )) := 2 + (2 × ((222 + 222 ) + 2)) := 33/3 × (((3 − 3/3 + 3)3 ) + 3) := 3 × (((3 + 3) × (3 × 33 − 3)) + 3) := 3 + ((((33/3)3 ) + 3 × 33 ) + 3) := 4 × (4 + 4) × 44 := 4 + (4 × (4 + 4) × 44 + 4/4) := (44 − 4)/4 + 4 × (4 + 4) × 44 := ((5 + 5)/5)5 × (55 − (55/5)) := 5 + (((5 + 5)/5)5 × (55 − (55/5))) := 55 + (5 × 5 × 55 − ((55 + 5)/5)) := 66/6 × (((6 + 6)/6)6/6+6) := 6 + (666/6 + 6 × 6 × 6 × 6) := 6 × 6 × 6 × 6 + ((666 + 66)/6) := 77/7 × ((7 + 7)/7)7 := (7 × ((7 + 7) × (7 + 7) + 7)) − (7/7 + 7) := 7 + (((77/7 + 7) × (7/7 + 77)) + 7) := 88 × (8 + 8) := 8 + ((88 × (8 + 8) − (88/8)) + 8) := 8 + (88 × (8 + 8) + ((8 + 8)/8)) := 99/9 × (((99/9 + 99) + 9) + 9) := ((9 + 9) × (9 × 9 − ((9 + 9)/9))) − 9 := ((9 + 9)/9) × (9 × 9 × 9 − (99/9 + 9)) := 22 × 2 2 2+2+2 Ï 1409 := 1 + 11 × ((1 + 1)1+(1+1)×(1+1+1) ) Ï 1414 := (1 + (1 + 1 + 11)) × (1 + (11 − 1)1+1 ) 2 Ï 1419 := 11 × (11 × (1 + 11) − 1 − 1 − 1) := 2/2 + 22 × 22+2+2 := 2 + (2 × (222 + 22 )) := 22/2 + 22 × 22+2+2 := 3 × 33 + (((33/3)3 ) − 3) := 3 + ((((33/3)3 ) − 3/3) + 3 × 33 ) := 33 + (33 × (3 × 3 + 33)) := 4/4 + 4 × (4 + 4) × 44 := 4 + (4 × (4 + 4) × 44 + (4 + 4)/4) := 44/4 + 4 × (4 + 4) × 44 := 5 + ((5 × (5 × 55 + 5) − 5/5) + 5) := (5 × ((5 × 55 + 5) + 5)) − 55/5 := 55 + (5 × 5 × 55 − (55/5)) := 6 + ((6 × ((6 × 6 × 6 + 6 + 6) + 6)) − 6/6) := 6 + ((666 + 6)/6 + 6 × 6 × 6 × 6) := 6 + ((666/6 + 6 × 6 × 6 × 6) + 6) := ((77 × ((7 + 7)/7)7 ) + 7)/7 := (7 × ((7 + 7) × (7 + 7) + 7)) − 7 := 77/7 × (((7 + 7)/7)7 + 7/7) := 8/8 + 88 × (8 + 8) := 8 + (88 × (8 + 8) − ((8 + 8)/8)) := 88/8 + 88 × (8 + 8) := 9 + ((99/9 + 9) × (9 × 9 − (99/9))) := 9/9 + (((9 + 9) × (9 × 9 − ((9 + 9)/9))) − 9) := 99/9 × ((999/9 + 9) + 9) Ï 1410 := (11 − 1) × ((1 + 11)1+1 − 1 − 1 − 1) Ï 1415 := ((1 + 1 + 11) × (111 − 1 − 1)) − 1 − 1 Ï 1420 := (11 − 1) × ((1 + 11)1+1 − (1 + 1)) := 2 + 22 × 22+2+2 := 2 + ((2 × (222 + 222 )) + 2/2) := 2 × (((222 + 222 ) + 2) + 2) := 3 + ((3 × ((3 + 3) × (3 × 33 − 3))) + 3) := 3 + (((33/3)3 ) + 3 × 33 ) := 3/3 + ((33 × (3 × 3 + 33)) + 33) := (4 + 4)/4 + 4 × (4 + 4) × 44 := 4 + ((4 × (4 + 4) × 44 − 4/4) + 4) := (4 × ((4 + 4) × 44 + 4)) − 4 := 5 + (5 × (5 × 55 + 5) + 5) := 5 + ((5 × (5 × 55 + 5) + 5) + 5) := (5 × ((5 × 55 + 5) + 5)) − 5 := 6 + (6 × ((6 × 6 × 6 + 6 + 6) + 6)) := 66/6 + (6 × ((6 × 6 × 6 + 6 + 6) + 6)) := 6 × 66 + (((6 + 6)/6)(66−6)/6) := (((7 + 7 + 7)/7)7 ) − 777 := 7 + (77/7 × ((7 + 7)/7)7 ) := (7 × ((7 + 7) × (7 + 7) + 7)) − 7/7 := (8 + 8)/8 + 88 × (8 + 8) := 8 + (88 × (8 + 8) − 8/8) := ((88 + 8)/8) + 88 × (8 + 8) := ((99/9) × ((999/9 + 9) + 9)) − 9 := 9 + (((9 × (9 × (9 + 9) − 9) + (99/9)) + 9) + 9) := (99/9 + 9) × (9 × 9 − (9/9 + 9)) Ï 1411 := 1 + (11 − 1) × ((1 + 11)1+1 − 1 − 1 − 1) Ï 1416 := (1 + 11) × (111+1 − (1 + 1 + 1)) 2 := 2 + (22 × 22+2+2 + 2/2) Ï 1421 := 1 + (11 − 1) × ((1 + 11)1+1 − 1 − 1) := 2 + (22 × 22+2+2 + 22/2) := 2 × ((222 + 22 ) + 2) 3 := (3 × (33 + 3)) + ((33/3)3 ) := 3 × 33 + (((33/3)3 ) − 3/3) := 3 + ((33 × (3 × 3 + 33)) + 3 ) := 4 + (4 × (4 + 4) × 44 − 4/4) := 4 + (4 × (4 + 4) × 44 + 4) := 4/4 + ((4 × ((4 + 4) × 44 + 4)) − 4) := 55/5 + 5 × (5 × 55 + 5) := 5 + (5 × (5 × 55 + 5) + (55/5)) := 5/5 + ((5 × ((5 × 55 + 5) + 5)) − 5) := 6 + ((6 × ((6 × 6 × 6 + 6 + 6) + 6)) + 6/6) := (6 + 6) × ((666 + 6)/6 + 6) := (6/6 + 6) × (6 × 6 × 6 − (6/6 + 6 + 6)) 7 := 7 + ((77/7 + 7) × (7/7 + 77)) := 7 + (((77 × ((7 + 7)/7) ) + 7)/7) := 7 × ((7 + 7) × (7 + 7) + 7) := 88/8 + (88 × (8 + 8) − 8) := 8 + 88 × (8 + 8) := 88 × (8 + 8) + (88 + 8 + 8)/8 := ((9 − 9/9) + 9) × (((9 + 9)/9) + 9 × 9) := 9 + (((9 + 9) × (9 × 9 − 9)) + 999/9) := 9 + (((((9 + 9)/9)9 ) + 9 × 99) + 9) Ï 1412 := 111+1+1 + (11 − 1 − 1)1+1 Ï 1417 := (1 + 1 + 11) × (111 − 1 − 1) 2 2 := (22/2) + (2 + 2 + 2) := 2 × (222 + 22 ) 3 Ï 1422 := 1 + 1 + (11 − 1) × ((1 + 11)1+1 − (1 + 1)) 2+2 := ((2 + 2 + 2)2 + 2)2 − 22 3 3 := 3 × 3 + ((33/3) ) := 333 + (3333/3 − 3 ) := 4 + 4 × (4 + 4) × 44 := 4 + ((4 × (4 + 4) × 44 + 4/4) + 4) 5 := 333 + 33 × 33 5 := (4 × ((4 + 4) × 44 + 4)) − (4 + 4)/4 := 5 + (5 × 5 × 55 + ((5 + 5)/5) ) := 5 + ((5 × 5 × 55 + ((5 + 5)/5) ) + 5) := (5 + 5)/5 + ((5 × ((5 × 55 + 5) + 5)) − 5) := 6 + (((666 − 6)/6) + 6 × 6 × 6 × 6) := 6/6 + ((6 + 6) × ((666 + 6)/6 + 6)) := 6 + ((6 + 6) × ((666 + 6)/6 + 6)) 7 := 7 + (7777/7 + 7 × (7 × 7 − 7)) := 7 + ((((7 + 7 + 7)/7) ) − 777) := 7/7 + (7 × ((7 + 7) × (7 + 7) + 7)) := 88 × (8 + 8) + (8/((8 + 8)/8)) := 8 + (88 × (8 + 8) + 8/8) := 8 + ((88 × (8 + 8) − ((8 + 8)/8)) + 8) := 9 × 9 × (9 + 9) − ((9 × 9 × 9 + 9)/(9 + 9)) := (9 + 9) × (9 × 9 − ((9 + 9)/9)) 9 := 9 + ((((9 + 9)/9) ) + 9 × 99) 104 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1423 := (1 + 1)11 − (1 + (1 + 1) × (1 + 11))1+1 Ï 1428 := (1 + 11) × (111+1 − 1 − 1) Ï 1433 := 1 + 111 × (1 + 1 + 11) − 11 := 2/2 + (((2 + 2 + 2) + 2) − 22) := 2 × ((2 + 2 + 2) × ((22/2) − 2)) := ((2 + 2 + 2)2 + 2)2 − 22/2 := 3/3 + (33 × 33 + 333) := (33/3 + 3) × (3 × 33 + 3) := 3 + (((33/3)3 ) + 3 × 33) := 4 + (4 × ((4 + 4) × 44 + 4)) := 4 + (((4 × ((4 + 4) × 44 + 4)) + 4/4) + 4) := (((5 + 5)/5)55/5 ) − 55 /5 := 55 + (5 × 5 × 55 − ((5 + 5)/5)) := 5 + ((5 × 5 × 55 − ((5 + 5)/5)) + 55) := 6 + (((6 + 6) × ((666 + 6)/6 + 6)) + 6/6) := 66 + (6 × 6 × 6 × 6 + 66) := 66 + ((6 × (6 × 6 × 6 + 6 + 6)) − 6/6) := ((7 + 7)/7) + (7 × ((7 + 7) × (7 + 7) + 7)) := 7 + (7 × ((7 + 7) × (7 + 7) + 7)) := (77 + 7)/7 + (7 × ((7 + 7) × (7 + 7) + 7)) := 8 + ((88 × (8 + 8) − 8/8) + 8) := 8 + (((88 + 8)/8) + 88 × (8 + 8)) := 8 + (((88 × (8 + 8) + 8/8) + 8) + 8) := 9/9 + ((9 + 9) × (9 × 9 − ((9 + 9)/9))) := (9 × (9 × (9 + 9) + 9)) − 999/9 := (9 + 9)/9 + (9 × 9 × (9 + 9) − (9 + 9 + 9)) 2 2 4 := (4 × (4 + 4)) − (4/4 + 4) 4 Ï 1424 := (1 + 1)11−1 + ((1 + 1) × (11 − 1))1+1 2 Ï 1429 := ((1 + 1 + 11) × (111 − 1)) − 1 2+2+2 := 22 + (2 × (222 + 222 )) := 22 + (22 × 2 := 3 + ((3 × (33 + 3)) + ((33/3)3 )) := 3 × 33 + (((33/3)3 ) − 3/3) := 3 + (3 × (3 × ((3 + 3) × 33 − 3))) := 4 × ((4 + 4) × 44 + 4) := 4 + ((4 × ((4 + 4) × 44 + 4)) + 4/4) := 4 + ((44 × (44 − 4)/(4 + 4)) + 44) := (5 × ((5 × 55 + 5) + 5)) − 5/5 := 55 + (5 × 5 × 55 − 5/5) := 5 + ((5 × 5 × 55 − 5/5) + 55) := 66 + ((6 × 6 × 6 × 6 + 66) + 6/6) := 66 + (6 × (6 × 6 × 6 + 6 + 6)) 2 6/6+6) := 6 × 6 × 6 × 6 + (((6 + 6)/6) := 7 + (((((7 + 7 + 7)/7)7 ) − 777) + 7) := 8 + (88 × (8 + 8) + 8) := (9 + 9)/9 + ((9 + 9) × (9 × 9 − ((9 + 9)/9))) Ï 1425 := ((1 + 11) × (111+1 − (1 + 1))) − 1 − 1 − 1 2 := (2/2 + 2) × ((22 − 22/2) + 2) := 3 + (33 × 33 + 333) − 2/2) Ï 1434 := 1 + 1 + 111 × (1 + 1 + 11) − 11 := 2 + (((2 + 2 + 2) + 2) − 22) 2 := 7 + ((7 × ((7 + 7) × (7 + 7) + 7)) + 7/7) := (7 × (((7 + 7)/7)7 + 77)) − 7/7 := 8 + ((88 + 8 + 8)/8 + 88 × (8 + 8)) := 8 + (((88 × (8 + 8) + ((8 + 8)/8)) + 8) + 8) := 9 × 9 × (9 + 9) − (99/9 + 9 + 9) := ((9 + 9)/9) × (9 × 9 × 9 − ((99 + 9)/9)) Ï 1430 := (1 + 1 + 11) × (111 − 1) Ï 1435 := 1 + 1 + 1 + (111 × (1 + 1 + 11) − 11) := 22 + 22 × 22+2+2 := 2 + (((2 + 2 + 2)2 + 2)2 − 22/2) 3 := 3 × 33 + ((33/3) ) := 3 + ((3 × (3 × ((3 + 3) × 33 − 3))) + 3/3) 4 := 4/4 + (4 × ((4 + 4) × 44 + 4)) := 44 + (44 × (4 − 4)/(4 + 4)) := 44/4 + (4 × ((4 + 4) × 44 + 4)) := 5 × ((5 × 55 + 5) + 5) := 55 + 5 × 5 × 55 := 5 + (5 × 5 × 55 + 55) 6 := (6 − 6/6) × (6 × 66 − 666/6) := 66/6 × (((6 + 6)/6) + 66) := 66 + ((6 × 6 + 6/6)(6+6)/6 ) := 77/7 + ((7 × ((7 + 7) × (7 + 7) + 7)) − 7) := (7 − 7/7 + 7) × (777 − 7)/7 := 7 × (((7 + 7)/7)7 + 77) := 8 + ((88 × (8 + 8) + 8/8) + 8) := ((8 + 8)/8) × (88/8 + 8 × 88) := 8 + ((88 × (8 + 8) + 88/8) + 8) := 9 × 9 × (9 + 9) − (99/((9 + 9 + 9)/9)) Ï 1426 := ((1 + 11) × (111+1 − (1 + 1))) − 1 − 1 := (22 + 2/2) × (22+2+2 − 2) 3+3 := 99 + (99/9) (9+9+9)/9 := (9 + 9) × (9 + 9) + 9999/9 Ï 1431 := 1 + (1 + 1 + 11) × (111 − 1) := 22 + (22 × 22+2+2 + 2/2) 3 Ï 1436 := (1 + 1) × ((11 − 1 − 1)1+1+1 − 11) := 2 × (2 × (((22 − (2/2 + 2))2 ) − 2)) := 3 × (3 × ((3 + 3) × 3 − 3)) := 3 + ((((33/3)3 ) + 3 × 33) + 3) := (4 + 4)/4 + (4 × ((4 + 4) × 44 + 4)) := 44 + ((4444 + 44 )/4) := (4 + 4) × (4 × 44 + 4) − 4 := 5/5 + (5 × ((5 × 55 + 5) + 5)) := 55 + (5 × 5 × 55 + 5/5) := ((((3 + 3) × 3 ) + 3)/3) − 33 6 := 5 + ((5 × 5 × 55 + 5/5) + 55) := 66 + (((6 + 6)/6) + 6 × 6 × 6 × 6) := 6 × 6 + (((6 × 6/(6 + 6)) ) + 666) := 6 + ((66/6) × (((6 + 6)/6)6 + 66)) := 7 + (77/7 × (((7 + 7)/7)7 + 7/7)) := ((77 − 7)/7) + (7 × ((7 + 7) × (7 + 7) + 7)) := 7/7 + (7 × (((7 + 7)/7)7 + 77)) := 8 + ((88 × (8 + 8) + ((8 + 8)/8)) + 8) := 8 + (((88 × (8 + 8) − 8/8) + 8) + 8) := 8 + ((((88 + 8)/8) + 88 × (8 + 8)) + 8) := (9 + 9) × (9 + 9) + (9999/9 − 9) := 9 × 9 × (9 + 9) − (9 + 9 + 9) := ((9 + 9)/9) × (9 × 9 × 9 − (99/9)) Ï 1427 := ((1 + 11) × (111+1 − (1 + 1))) − 1 6 Ï 1432 := 111 × (1 + 1 + 11) − 11 Ï 1437 := ((11 − 1) × (1 + 11)1+1 ) − 1 − 1 − 1 := ((2/2 + 2) × (222 − 2/2)) − 22 := 2 + (22 × 22+2+2 + 22) := (2/2 + 2) × (222 − (2/2 + 2 + 2)) := 3 × 33 + (((33/3)3 ) − 3) := 3/3 + (3 × (3 × ((3 + 3) × 33 − 3))) := 3 × (((3 − 3/3)3×3 ) − 33) := 4 + ((44 × (4 + 4)) − (4/4 + 4)4 ) := 4 + ((4 × ((4 + 4) × 44 + 4)) + 4) := 4/4 + ((4 + 4) × (4 × 44 + 4) − 4) := (5 + 5)/5 + (5 × ((5 × 55 + 5) + 5)) := 55 + (5 × 5 × 55 + ((5 + 5)/5)) := 5 + ((5 × 5 × 55 + ((5 + 5)/5)) + 55) 6 := 66 + ((6 × 6 × 6 × 6 − 6/6) + 66) := ((6 + 6)/6) + (6 × (6 × 6 × 6 + 6 + 6)) := ((6/6 + 6 + 6) × 666/6) − 6 := 7 + ((7 × ((7 + 7) × (7 + 7) + 7)) − 7/7) := 77/7 + (7 × ((7 + 7) × (7 + 7) + 7)) := ((7 × 7 − 77/7)(7+7)/7 ) − 7 := 8 + (88 × (8 + 8) + 88/8) := 8 + ((88 × (8 + 8) + 8) + 8) := 8 × 8 × (8 + 8 + 8) − (88/8 + 88) := 9 × 9 × (9 + 9) − (((99 + 99)/9) + 9) := 9/9 + (9 × 9 × (9 + 9) − (9 + 9 + 9)) := 9 × 9 × (9 + 9) − (((99 + 9)/9) + 9) 105 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1438 := ((11 − 1) × (1 + 11)1+1 ) − 1 − 1 2 2 := ((2 + 2 + 2) + 2) − (2 + 2 + 2) Ï 1448 := 11 × (11 × (1 + 11)) − 1 − 1 − 1 − 1 Ï 1443 := 111 × (1 + 1 + 11) := 2 + (((2 + 2 + 2)2 + 2)2 + 2) := (22/2 + 2) × 222/2 3 := 3/3 + (3 × (((3 − 3/3)3×3 ) − 33)) := 3 + ((3 + 3) × (3 × 3 × 3 − 3)) := (3/3 + 3) × ((33 × 33 − 3)/3) := (4 + 4) × (4 × 44 + 4) − (4 + 4)/4 := 4 + ((4 + 4) × (4 × 44 + 4) − 4/4) := 4 + ((4 + 4) × (4 × 44 + 4) + 4) := 5 × 5 × 55 + (55 /5 + 5)/(5 + 5) := 555/5 × (55 + 5 + 5)/5 := 5 + (555/5 × (55 + 5 + 5)/5) := ((((6 + 6)/6) + 6 × 6)(6+6)/6 ) − 6 := (6/6 + 6 + 6) × 666/6 := 6 × 6 × (6 × 6 + 6) − ((6 + 6)/6)6 := 77 + ((7 × (7 + 7) × (7 + 7)) − (77/7)) := (7 − 7/7 + 7) × 777/7 := 77 + ((7 × (7 + 7) × (7 + 7)) − 7/7) := 8 + ((88 + 88)/8 + 88 × (8 + 8)) := 888/8 × (88 + 8 + 8)/8 := 8 × 8 × (8 + 8 + 8) − 88 := 9 × 9 × (9 + 9) − (99/9 + 9) := 999/9 × ((99 + 9 + 9)/9) := 9 × 9 × (9 + 9) − 9/9 − 9 Ï 1439 := ((11 − 1) × (1 + 11)1+1 ) − 1 Ï 1444 := 1 + 111 × (1 + 1 + 11) Ï 1449 := (1 + 1 + 1) × ((11 + 11)1+1 − 1) := ((2 + 2 + 2)2 + 2)2 − (2/2 + 2 + 2) := ((2 + 2 + 2)2 + 2)2 := (2/2 + 2) × (222 − 2/2) := (3 × (33 + 3)) + ((33/3)3 ) := 333 + 3333/3 := 3 × ((3 × (3 + 3) × 33 ) − 3) := 4 + (4 + 4) × (4 × 44 + 4) := (4 − 4/4) × ((44 × 44 − 4)/4) := (5 × (5 × (55 + 5))) − (55 + 5/5) := (55 − 5)/5 + (55 × (5 + 5 + 5)) := (4 + 4) × (4 × 44 + 4) − 4/4 := ((55 + 5) × (5 × 5 − 5/5)) − 5/5 (6+6)/6 := (6 × (6 × (6 × 6 + 6) − (6 + 6))) − 6/6 := (((6 + 6)/6) + 6 × 6) := 7 + ((7 × ((7 + 7) × (7 + 7) + 7)) + (77/7)) := (7 × 7 − 77/7)(7+7)/7 := 77 + (7 × (7 + 7) × (7 + 7)) := ((8 + 8) × ((8 + 8)/8 + 88)) − 8/8 := 888 + ((8888 + 8)/(8 + 8)) := 8/8 + (8 × 8 × (8 + 8 + 8) − 88) := 9 × 9 × (9 + 9) − (9/9 + 9 + 9) Ï 1440 := (11 − 1) × (1 + 11)1+1 := ((99/9 + 9 + 9) + 9) (9+9)/9 Ï 1445 := 1 + 1 + 111 × (1 + 1 + 11) := 6 + ((6/6 + 6 + 6) × 666/6) := 9 × 9 × (9 + 9) − 9 Ï 1450 := (11 − 1) × (1 + (1 + 11)1+1 ) := 2 × ((22 − 2) × (2 + 2 + 2)2 ) := 2/2 + ((2 + 2 + 2)2 + 2)2 := ((2/2 + 2) × 222 ) − 2 := (3 + 3) × (3 × 3 × 33 − 3) := 3 + (333/3 + ((33/3)3 )) := 3 + ((((3 + 3) × 33+3 ) − 33)/3) := (4 + 4) × (4 × 44 + 4) := 4 + ((4 + 4) × (4 × 44 + 4) + 4/4) := 44 + (4 × (4 + 4) × 44 − (4 + 4)/4) := (55 + 5) × (5 × 5 − 5/5) := (5 × (5 × (55 + 5))) − 55 := 5 × (((5 × 55 + 5) + 5) + 5) := 6 × (6 × (6 × 6 + 6) − (6 + 6)) := 6 × 6 × (6 × 6 + 6) − (66 + 6/6) := 6 + ((((6 + 6)/6) + 6 × 6)(6+6)/6 ) := 7 × 7 × 7 + (7777/7 − (7 + 7)) := 7/7 + ((7 × 7 − 77/7)(7+7)/7 ) := 7 + ((7 − 7/7 + 7) × 777/7) := (8 + 8) × ((8 + 8)/8 + 88) := 88 × (8 + 8) + 888/(8 + 8 + 8) := (8 + 8)/8 + (8 × 8 × (8 + 8 + 8) − 88) := (9 + 9) × (9 × 9 − 9/9) := 9 × 9 × (9 + 9) − ((99 + 9 + 9)/9) := 9/9 + (9 × 9 × (9 + 9) − 9) Ï 1441 := 11 × ((11 × (1 + 11)) − 1) 2 2 Ï 1446 := 1 + 1 + 1 + 111 × (1 + 1 + 11) 2 2 Ï 1451 := 11 × 11 × (1 + 11) − 1 := ((2/2 + 2) × 222 ) − 2/2 := ((2 + 2 + 2) + 2) − 2/2 − 2 := 2 + ((2 + 2 + 2) + 2) := 3/3 + ((3 + 3) × (3 × 3 × 33 − 3)) := (3 + 3) × (((33+3 + 3)/3) − 3) := (((3 + 3) × (33+3 − 3)) − 3)/3 := 4/4 + (4 + 4) × (4 × 44 + 4) := 4 + ((4 + 4) × (4 × 44 + 4) + (4 + 4)/4) := 44 + (4 × (4 + 4) × 44 − 4/4) := 55 + (5 × 5 × 55 + (55/5)) := 5/5 + ((5 × (5 × (55 + 5))) − 55) := 5/5 + (5 × (((5 × 55 + 5) + 5) + 5)) := 6/6 + (6 × (6 × (6 × 6 + 6) − (6 + 6))) := 6 × 6 × (6 × 6 + 6) − 66 := ((66 × (66 + 66)) − 6)/6 := 7 + ((7 × (((7 + 7)/7) + 77)) − 7/7) := 7 × 7 × 7 + ((7777 − 7)/7 − 7) := 7 + ((7 × 7 − 77/7)(7+7)/7 ) := 8/8 + ((8 + 8) × ((8 + 8)/8 + 88)) := ((8 + 8)/8) × ((88/8 + 8 × 88) + 8) := 8 + (888/8 × (88 + 8 + 8)/8) := 9/9 + ((9 + 9) × (9 × 9 − 9/9)) := 9 × 9 × (9 + 9) − (99 + 9)/9 := (9 + 9)/9 + (9 × 9 × (9 + 9) − 9) 7 Ï 1442 := 111 + 111+1+1 Ï 1447 := 1 + 1 + 1 + 1 + 111 × (1 + 1 + 11) := ((2 + 2 + 2)2 + 2)2 − 2 2 2 Ï 1452 := 11 × 11 × (1 + 11) := 2 + (((2 + 2 + 2) + 2) + 2/2) := (2/2 + 2) × 222 := 333/3 + ((33/3) ) := (((3 + 3) × 33+3 ) − 33)/3 := 33 × (33/3 + 33) := (4 + 4)/4 + (4 + 4) × (4 × 44 + 4) := 4 + (((4 + 4) × (4 × 44 + 4) − 4/4) + 4) := 44 + 4 × (4 + 4) × 44 := 55 + (5 × 5 × 55 + ((55 + 5)/5)) := (5 + 5)/5 + ((5 × (5 × (55 + 5))) − 55) := (5 + 5)/5 + (5 × (((5 × 55 + 5) + 5) + 5)) := ((666 × (6/6 + 6 + 6)) − 6)/6 := 6/6 + (6 × 6 × (6 × 6 + 6) − 66) := 66 × ((66 + 66)/6) := 7 + (7 × (((7 + 7)/7) + 77)) := 7 × 7 × 7 + (7777/7 − 7) := (77 + 7)/7 × (((7 + 7)/7)7 − 7) := (8 + 8)/8 + ((8 + 8) × ((8 + 8)/8 + 88)) := 8 × 8 × (8 + 8 + 8) − (8/8 + 88) := 88 × (8 + 8) + (88/((8 + 8)/8)) := (9 + 9)/9 + ((9 + 9) × (9 × 9 − 9/9)) := 9 × 9 × (9 + 9) − 99/9 := 9 × 9 × (9 + 9) + (((9 + 9 + 9)/9) − 9) 3 7 106 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1453 := 1 + 11 × 11 × (1 + 11) 2 Ï 1458 := (1 + 1) × (11 − 1 − 1)1+1+1 2+2+2 Ï 1463 := 11 × (1 + 11 × (1 + 11)) := 22/2 + ((2/2 + 2) × 222 ) := 2/2 + ((2/2 + 2) × 22 ) := 2 × ((2/2 + 2) ) := (((3 + 3) × (33+3 − 3)) + 3)/3 := 3 × (3 × (3 + 3) × 33 ) := (((3 + 3) × (33+3 + 3)) − 3)/3 := 44 + (4 × (4 + 4) × 44 + 4/4) := (4 − 4/4)4 × ((4 + 4)/4 + 4 × 4) := 444 + (4 × 44 − (4/4 + 4)) := ((5/5 + 5) × ((5 − (5 + 5)/5)5 )) − 5 := (5/5 + 5) × ((5 − (5 + 5)/5)5 ) := 5 + ((5/5 + 5) × ((5 − (5 + 5)/5)5 )) := ((66 × (66 + 66)) + 6)/6 := 666 + 66 × (6 + 6) := (6/6 + 6) × (6 × 6 × 6 − (6/6 + 6)) := 7 × 7 × 7 + (7777 − 7)/7 := 7 + (((7 × 7 − 77/7) := 8 × 8 + (88 × (8 + 8) − (88/8 + 8)) := ((8 + 8)/8) × ((8/8 + 8)88/8−8 ) := 8 × 8 + (88 × (8 + 8) − (8/8 + 8)) := 9 × 9 × (9 + 9) := 9 × 9 × (9 + 9) + ((9 × 9 + 9)/(9 + 9)) := 9 × 9 × (9 + 9) + ((9 − 99)/(9 + 9)) Ï 1454 := 1 + 1 + 11 × 11 × (1 + 11) (7+7)/7 ) + 7) Ï 1459 := 1 + (1 + 1) × (11 − 1 − 1)1+1+1 := 77 × ((77 + 7)/7 + 7) Ï 1464 := (1 + 11) × (1 + 111+1 ) := 2 + ((2/2 + 2) × 222 ) := 2/2 + (2 × ((2/2 + 2)2+2+2 )) := (2/2 + 2) × (222 + 2 + 2) := ((((3 + 3) × 33+3 ) − 3)/3) − 3 := (((3 + 3) × 33+3 ) + 3)/3 := (3 + 3) × ((33+3 + 3)/3) := 44 + (4 × (4 + 4) × 44 + (4 + 4)/4) := 4 + ((4 × (44 + 44 ) − 4/4) + 44 ) := 444 + (4 × 44 − 4) := 55 + (5 × (5 × 55 + 5) − 5/5) := 5 + ((5 × (5 × 55 + 5) − 5/5) + 55) := (5 × 5 − 5/5) × ((55 + 5/5) + 5) := ((6 + 6)/6) × ((66 × 66 + 6)/6) := 6 + (((66 × (66 + 66)) + 6)/6) := 6 + (66 × (6 + 6) + 666) := 7 × 7 × 7 + 7777/7 := ((7 + 7) × (7 × (7 + 7) + 7)) − 77/7 := 7/7 + ((7 × 7 × (7 + 7)) + 777) := ((8/8 + 8 + 8) × (88 − ((8 + 8)/8))) − 8 := 8 × (8 + 8) + ((88/8)88/8−8 ) := 8 × 8 + (88 × (8 + 8) − 8) := 9/9 + 9 × 9 × (9 + 9) := 9 + (9 × 9 × (9 + 9) − ((9 + 9 + 9)/9)) := ((9 + 9)/9) × (9 × 9 × 9 − ((9 + 9)/9)) Ï 1455 := 1 + 1 + 1 + 11 × 11 × (1 + 11) Ï 1460 := (1 + 1) × (1 + (11 − 1 − 1)1+1+1 ) Ï 1465 := 1 + (1 + 11) × (1 + 111+1 ) := (2/2 + 2) × (222 + 2/2) := 2 + (2 × ((2/2 + 2)2+2+2 )) := 2 + (((2/2 + 2) × 222 ) + 22/2) := 33+3 + (33+3 − 3) := 3 + ((((3 + 3) × 33+3 ) − 3)/3) := (((3 + 3) × (33+3 + 3)) + 3)/3 := 44 + (4 × (44 + 44 ) − 4/4) := 4 + (4 × (44 + 44 ) + 44 ) := 4/4 + ((4 × 44 − 4) + 444) := 55 + 5 × (5 × 55 + 5) := 5 + (5 × (5 × 55 + 5) + 55) := (5 × ((5 × (55 + 5)) − 5)) − 5 − 5 := 6 + (((6/6 + 6 + 6) × 666/6) + 6) := 6 + (((6 + 6)/6) × ((66 × 66 + 6)/6)) := (6 × (6 × (6 × 6 + 6) − 6)) − 66/6 := 7 × 7 × 7 + (7777 + 7)/7 := 7 + ((7777 − 7)/7 + 7 × 7 × 7) := 7 × 7 × 7 + ((7777 + 77)/7) := (8 − 8/8 + 8) × ((8/8 + 88) + 8) := 8 + ((88/((8 + 8)/8)) + 88 × (8 + 8)) := 8/8 + ((88 × (8 + 8) − 8) + 8 × 8) := 9 × 9 × (9 + 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + 9 × 9 × (9 + 9) := 9 + (9 × 9 × (9 + 9) − ((9 + 9)/9)) Ï 1456 := (1 + 1 + 11) × (1 + 111) Ï 1461 := 11 × (1 + 11 × (1 + 11)) − 1 − 1 Ï 1466 := 11 + (1 + 1 + 11) × (1 + 111) − 1 := 2 + (((2/2 + 2) × 222 ) + 2) := (2/2 + 2) × ((222 + 2/2) + 2) := 22 + ((2 + 2 + 2)2 + 2)2 := (3 − 3/3) × (33+3 − 3/3) := 3 + (33+3 + 33+3 ) := 3 + ((((3 + 3) × (33+3 + 3)) − 3)/3) := 44 + 4 × (44 + 44 ) := 4 + ((4 × (44 + 44 ) + 44 ) + 4/4) := 444 + (4 × 44 − (4 + 4)/4) := (5 × 5 + 5/5) × (55 + 5/5) := 5 + ((5 × 5 + 5/5) × (55 + 5/5)) := 5 + (((5 × 5 + 5/5) × (55 + 5/5)) + 5) := (6/6 + 6 + 6) × (666 + 6)/6 := 66 + (((6 × 6/(6 + 6))6 ) + 666) := ((6 + 6)/6) × (((66 × 66 + 6)/6) + 6) := (7 + 7) × (777/7 − 7) := 7 + (7777/7 + 7 × 7 × 7) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) − (77/7)) := 8 + (8 × 8 × (8 + 8 + 8) − 88) := 8 × 8 + (88 × (8 + 8) − (88/8)) := 8 × 8 + ((88 × (8 + 8) − 8) + ((8 + 8)/8)) := 9 × 9 × (9 + 9) − (9 + 9)/9 := 9 × 9 × (9 + 9) + ((9 + 9 + 9)/9) := 9 + (9 × 9 × (9 + 9) − 9/9) Ï 1457 := 1 + (1 + 1 + 11) × (1 + 111) 2 Ï 1462 := 11 × (1 + 11 × (1 + 11)) − 1 2+2+2 ) + 2) Ï 1467 := 11 + (1 + 1 + 11) × (1 + 111) := 22 + (((2 + 2 + 2)2 + 2)2 + 2/2) := 2 + ((2/2 + 2) × (22 + 2/2)) := 2 × (((2/2 + 2) := (((3 + 3) × 33+3 ) − 3)/3 := 3 + ((((3 + 3) × 33+3 ) + 3)/3) := 3 × ((3 × (3 + 3) × 33 ) + 3) := 4/4 + (4 × (44 + 44 ) + 44 ) := 4 + ((4 − 4/4)4 × ((4 + 4)/4 + 4 × 4)) := 444 + (4 × 44 − 4/4) := 55 + (5 × (5 × 55 + 5) + ((5 + 5)/5)) := 55 + (5 × 5 × 55 + ((5 + 5)/5)5 ) := ((5 + 5)/5 × (555 + 55 )/5) − 5 := 6 + (((66 × (66 + 66)) − 6)/6) := 6 + ((6/6 + 6 + 6) × (666 + 6)/6) := 6 + ((((6 × 6/(6 + 6))6 ) + 666) + 66) := 7/7 + ((7 + 7) × (777/7 − 7)) := 777 + ((7 × 7 × (7 + 7)) − 7/7) := 77/7 + ((7 + 7) × (777/7 − 7)) := 8 + ((8 × 8 × (8 + 8 + 8) − 88) + 8/8) := (8/8 + 8 + 8) × (88 − ((8 + 8)/8)) := (8/8 + 8) × ((88/8 + 88) + 8 × 8) := 9 × 9 × (9 + 9) − 9/9 := ((9 + 9)/9) × (9 × 9 × 9 + ((9 + 9)/9)) := 9 + 9 × 9 × (9 + 9) 107 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1468 := (1 + 1 + 11) × (1 + 1 + 111) − 1 2 2 Ï 1473 := 11 × (1 + 1 + 11 × (1 + 11)) − 1 2 Ï 1478 := 11 + (1 + 1 + 11) × (1 + 1 + 111) − 1 − 1 := 2 + (((2 + 2 + 2) + 2) + 22) := 22 + (((2/2 + 2) × 22 ) − 2/2) := (2 × (22×(2+2) + 222 )) − 2 := 3 + ((((3 + 3) × (33+3 + 3)) + 3)/3) := ((3 + 3) × (3 × 3 × 33 + 3)) − 3 := 3 + (((3 + 3) × (33 − 3)) + ((33/3)3 )) := 444 + 4 × 44 := 4 + ((444 + 4 × 44 ) + 4/4) := 44 + (((44 × 444/4) + 4)/4) := (5 × (5 × (55 + 5))) − ((5 + 5)/5)5 := (5 × ((5 × (55 + 5)) − 5)) − (5 + 5)/5 := 5 + ((5 × ((5 × (55 + 5)) − 5)) − ((5 + 5)/5)) := (6 × (6 × (6 × 6 + 6) − 6)) − ((6 + 6)/6 + 6) := 66 + (666/6 + 6 × 6 × 6 × 6) := (6 + 6)/6 + (6 × (6 × (6 × 6 + 6) − 6)) := ((7 + 7) × (7 × (7 + 7) + 7)) − (7 + 7)/7 := ((7 + 7 + 7)/7) + ((7 + 7) × (7 × (7 + 7) + 7)) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) + 7/7) := 8 × 8 + (88 × (8 + 8) − (8/((8 + 8)/8))) := 8/8 + (88 × (8 + 8) + 8 × 8) := 8 + ((88 × (8 + 8) − ((8 + 8)/8)) + 8 × 8) := 9 + (9 × 9 × (9 + 9) + 9/9) := 9 + ((9 × 9 × (9 + 9) − ((9 + 9 + 9)/9)) + 9) := 9 + (9 × 9 × (9 + 9) + (99/9)) Ï 1469 := (1 + 1 + 11) × (1 + 1 + 111) Ï 1474 := 11 × (1 + 1 + 11 × (1 + 11)) 2 Ï 1479 := 11 + (1 + 1 + 11) × (1 + 1 + 111) − 1 := (22/2 + 2) × (222/2 + 2) := 22 + ((2/2 + 2) × 22 ) := (2 × (22 − 2))2 − (22/2)2 := (((3 + 3) × 33+3 ) + 33)/3 := (33 × 33 + 3333)/3 := 3 + ((3 + 3) × (3 × 3 × 33 + 3)) := 4/4 + (444 + 4 × 44 ) := 4 + ((444 + 4 × 44 ) + (4 + 4)/4) := 444 + (44/4 + 4 × 44 ) := (5 × ((5 × (55 + 5)) − 5)) − (5/5 + 5) := (5 × ((5 × (55 + 5)) − 5)) − 5/5 := 5 + ((5 × ((5 × (55 + 5)) − 5)) − 5/5) := (6 × (6 × (6 × 6 + 6) − 6)) − 6/6 − 6 := (66 + 6/6) × ((66 + 66)/6) := 6 × 6 + ((6/6 + 6 + 6) × 666/6) := ((7 + 7) × (7 × (7 + 7) + 7)) − 7/7 := 77/7 + ((7 × 7 × (7 + 7)) + 777) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) + ((7 + 7)/7)) := 8 + ((88 × (8 + 8) − (88/8)) + 8 × 8) := 8 × 8 + (88 × (8 + 8) + ((8 + 8)/8)) := (8/8 + 8 + 8) × (88 − 8/8) := 99/9 + 9 × 9 × (9 + 9) := 9 + ((9 × 9 × (9 + 9) − ((9 + 9)/9)) + 9) := 9 + (9 × 9 × (9 + 9) + ((99 + 9)/9)) Ï 1470 := 1 + (1 + 1 + 11) × (1 + 1 + 111) 2 Ï 1475 := 1 + 11 × (1 + 1 + 11 × (1 + 11)) 2 Ï 1480 := 11 + (1 + 1 + 11) × (1 + 1 + 111) := (2/2 + 2) × ((22 + 2 + 2) + 2) := 22 + (((2/2 + 2) × 22 ) + 2/2) := 2 × (22×(2+2) + 222 ) := 3 + (3 × ((3 × (3 + 3) × 33 ) + 3)) := ((33/3)3 ) + ((3 + 3) × (33 − 3)) := (3 − 3/3) × (33+3 + 33/3) := 444 + ((4 + 4)/4 + 4 × 44 ) := (4 × ((4/4 + 4)4 − 44 )) − 4/4 := 4 + (4 × ((4/4 + 4)4 − 44 )) := (5 × ((5 × (55 + 5)) − 5)) − 5 := 5 × ((5 × (55 + 5)) − 5) := 5 + (5 × ((5 × (55 + 5)) − 5)) := (6/6 + 6) × (6 × 6 × 6 − 6) := (6 × (6 × (6 × 6 + 6) − 6)) − 6/6 := 6 + ((66 + 6/6) × ((66 + 66)/6)) := (7 + 7) × (7 × (7 + 7) + 7) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) − ((7 + 7)/7)) := (7/7 + 7) × ((7 + 7) × (7 + 7) − (77/7)) := 8 × 8 + (88 × (8 + 8) − ((8 + 8)/8)) := 8 × 8 + ((88 × (8 + 8) − 8) + (88/8)) := 8 + (88 × (8 + 8) + 8 × 8) := 9 × 9 × (9 + 9) + (99 + 9)/9 := 9 + ((9 × 9 × (9 + 9) − 9/9) + 9) := ((9 + 9)/9) × (9 × 9 × 9 + (99/9)) Ï 1471 := 1 + 1 + (1 + 1 + 11) × (1 + 1 + 111) := 2 + ((22/2 + 2) × (222/2 + 2)) Ï 1476 := (1 + 11) × (1 + (1 + 111+1 )) 2 Ï 1481 := ((1 + 1 + 11) × (1 + 1 + 1 + 111)) − 1 := 2 + (((2/2 + 2) × 22 ) + 22) := 2 + ((2 × (22 − 2))2 − (22/2)2 ) := (3 + 3) × (3 × 3 × 33 + 3) := 33 + (((((3 + 3) × 33+3 ) − 3)/3) − 3) := 4 + ((4 × 4 − 4/4) + 444) := 4 × ((4/4 + 4)4 − 44 ) := (4444 − 4/4)/(4 − 4/4) := 5/5 + ((5 × ((5 × (55 + 5)) − 5)) − 5) := 5/5 + (5 × ((5 × (55 + 5)) − 5)) := 5 + ((5 × ((5 × (55 + 5)) − 5)) + 5/5) := 6/6 + ((6/6 + 6) × (6 × 6 × 6 − 6)) := 6 × (6 × (6 × 6 + 6) − 6) := 6 + ((6 × (6 × (6 × 6 + 6) − 6)) − 6/6) := 7/7 + ((7 + 7) × (7 × (7 + 7) + 7)) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) − 7/7) := 77/7 + ((7 + 7) × (7 × (7 + 7) + 7)) := (((3 + 3) × ((3 3+3 + 3) + 3)) + 3)/3 4 := 8 × 8 + (88 × (8 + 8) − 8/8) := 8 × 8 + (88 × (8 + 8) + (8/((8 + 8)/8))) := 8 + ((88 × (8 + 8) + 8/8) + 8 × 8) := 9 × 9 × (9 + 9) + ((99 + 9 + 9)/9) := 9 + (9 × 9 × (9 + 9) + 9) := 9 × 9 × (9 + 9) + ((99 + 99 + 9)/9) Ï 1472 := 11 × (1 + 1 + 11 × (1 + 11)) − 1 − 1 := 2 × (2 2+2 × ((2 × 22) + 2)) Ï 1477 := 1 + (1 + 11) × (1 + 1 + 111+1 ) 2 Ï 1482 := (1 + 1 + 11) × (1 + 1 + 1 + 111) := 22 + ((2/2 + 2) × (22 + 2/2)) := 2 + (2 × (22×(2+2) + 222 )) := 3 + ((((3 + 3) × 33+3 ) + 33)/3) := 3/3 + ((3 + 3) × (3 × 3 × 33 + 3)) := (3 + 3) × (((33+3 + 3)/3) + 3) := 4 + (444 + 4 × 44 ) := 4/4 + (4 × ((4/4 + 4)4 − 44 )) := 444 + (4 × (44 + 4) − (4 + 4)/4) := (5 + 5)/5 + (5 × ((5 × (55 + 5)) − 5)) := (5 × 5 + 5/5) × ((5 + 5)/5 + 55) := 6/6 + (6 × (6 × (6 × 6 + 6) − 6)) := 6 + (6 × (6 × (6 × 6 + 6) − 6)) := ((7 + 7)/7) + ((7 + 7) × (7 × (7 + 7) + 7)) := 7 + ((7 + 7) × (7 × (7 + 7) + 7)) := (7/7 + 77) × ((77 + 7)/7 + 7) := 8 × ((88 + 88) + 8) := 88 + (88 × (8 + 8) − (88/8 + 8)) := 8 + ((88 × (8 + 8) + ((8 + 8)/8)) + 8 × 8) := 9 + (((9 × 9 + 9)/(9 + 9)) + 9 × 9 × (9 + 9)) := 9 + ((9 × 9 × (9 + 9) + 9/9) + 9) := ((9 + 9)/9) × (((99 + 9)/9) + 9 × 9 × 9) 5 := (5 + 5)/5 × (555 + 5 )/5 6 := ((6 + 6)/6) × ((66/6 + 6) + 6) 108 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1483 := 1 + ((1 + 1 + 11) × (1 + 1 + 1 + 111)) Ï 1488 := (1 + 11) × (1 + 1 + 1 + 111+1 ) Ï 1493 := (1 + 1)11 − (1111 − 1)/(1 + 1) := ((2/2 + 2) × (22/2 + 222 )) − 2 := (22 + 2) × (22+2+2 − 2) := 2/2 + (2 × ((2 × 222 ) − 222)) := 3 + ((3 − 3/3) × (33+3 + 33/3)) := 3 + (3 × (3 × ((3 + 3) × 33 + 3))) := (3 + 3) × 33 + ((33/3)3 ) := 444 + (4 × (44 + 4) − 4/4) := 4 + (4 × (44 + 4) + 444) := 4/4 + (44 × 44 − 444) := 5 × 5 + ((5/5 + 5) × ((5 − (5 + 5)/5)5 )) := (5/5 + 5) × (((5 − (5 + 5)/5)5 ) + 5) := (5 × (5 × (55 + 5))) − ((5 + 5)/5 + 5) := 6 + ((6 × (6 × (6 × 6 + 6) − 6)) + 6/6) := 6 + ((6 × (6 × (6 × 6 + 6) − 6)) + 6) := 6 + ((6 × (6 × (6 × 6 + 6) − 6)) + (66/6)) := 777/7 + (7 × (7 + 7) × (7 + 7)) := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) + (77/7)) := 7 + (((77 × (((7 + 7)/7)7 + 7)) + 7)/7) := 8 × 8 + (88 × (8 + 8) + 88/8) := 88 + (88 × (8 + 8) − 8) := 8 + ((88 × (8 + 8) − (88/8)) + 88) := 9 + (((9 × 9 × (9 + 9) − ((9 + 9)/9)) + 9) + 9) := 999/9 + 9 × (9 × (9 + 9) − 9) := 9 + ((9 × (99 + 9)) + (((9 + 9)/9)9 )) Ï 1484 := 11 × (1 + 1 + 1 + 11 × (1 + 11)) − 1 2×(2+2) 2 Ï 1489 := 1 + (1 + 11) × (1 + 1 + 1 + 111+1 ) Ï 1494 := 1 + (1 + 1)11 − (1111 − 1)/(1 + 1) := (2 × (22 − 2))2 − 222/2 := 2 + (2 × ((2 × 222 ) − 222)) := 3 + ((3 × (3 × ((3 + 3) × 33 + 3))) + 3/3) := (3 + 3) × ((3 + 3)3 + 33) := 444 + 4 × (4 + 4) := (4 − 4/4)4 + 4 × (4 + 4) × 44 := (4 + 4)/4 + (44 × 44 − 444) := (5 × (5 × (55 + 5))) − (55/5 + 5) := (5 × (5 × (55 + 5))) − 55/5 := (5 × (5 × (55 + 5))) − (5/5 + 5) := 6 + ((6 × (6 × (6 × 6 + 6) − 6)) + ((6 + 6)/6)) := 6 + (((6 × (6 × (6 × 6 + 6) − 6)) + 6/6) + 6) := 2 × ((2 + 22 ) + 2) 3 := 3 + ((((3 + 3) × 3 3+3 ) − 3)/3) 4 7 := (6 × 6 × (66 − 6)) − 666 := 7 + (((7 + 7) × (7 × (7 + 7) + 7)) + 7) := (77 × (7 + 7 + 7)) − ((7 + 7)/7) := (77/7 + 7) × (77 − 7/7 + 7) := 8 × 8 + (((88 + 8)/8) + 88 × (8 + 8)) := 8/8 + ((88 × (8 + 8) − 8) + 88) := 88 + (88 × (8 + 8) − ((8 + 8)/8)) := 9 + (((99 + 99)/9) + 9 × 9 × (9 + 9)) := (9 + 9) × (((9 + 9)/9) + 9 × 9) 9 := (9 × (99 + 9)) + (((9 + 9)/9) ) Ï 1490 := 1 + 1 + (1 + 11) × (1 + 1 + 1 + 111+1 ) Ï 1495 := (1 + 1 + 11) × (1 + 1 + 1 + 1 + 111) := (2/2 + 2) × (22/2 + 22 ) := 2 + ((22 + 2) × (22+2+2 − 2)) := ((2 × 22)2 ) − ((22 − 2/2)2 ) := 3 × (3 × ((3 + 3) × 33 + 3)) := 33 + ((((3 + 3) × 33+3 ) − 3)/3) := 3/3 + ((3 + 3) × ((3 + 3)3 + 33)) := 4/4 + (4 × (44 + 4) + 444) := (4/4 + 4) × ((44 − (4 + 4)/4) + 44) := (4/4 + 4) × ((44 − 4/4) + 44 ) := 55 × ((5 + 5)/5 + 5 × 5) := (5 × (5 × (55 + 5))) − 5 − 5 := (5 × (5 × (55 + 5))) − 5 := 6 + (((6/6 + 6 + 6) × 666/6) + 6 × 6) := 6 × 6 × (6 × 6 + 6) − ((66 + 66)/6) := (66 − 6/6) × ((66/6 + 6) + 6) Ï 1485 := 11 × (1 + 1 + 1 + 11 × (1 + 11)) 2 7 := 7 + ((7 × (7 + 7) × (7 + 7)) + 777/7) := 7 + ((((7 + 7) × (7 × (7 + 7) + 7)) + (77/7)) + 7) := 88 + (88 × (8 + 8) − (88/8)) := 88 + ((88 × (8 + 8) − 8) + ((8 + 8)/8)) := 88 + (88 × (8 + 8) − 8/8) := 9 + ((9 × 9 × (9 + 9) + 9) + 9) := 9 + (((99 + 99 + 9)/9) + 9 × 9 × (9 + 9)) := 9/9 + ((9 + 9) × (((9 + 9)/9) + 9 × 9)) := 77/7 × (((7 + 7)/7) + 7) Ï 1486 := 1 + 11 × (1 + 1 + 1 + 11 × (1 + 11)) 2+2+2 Ï 1491 := (1 + 1)11 − 1 − (1 + 1111)/(1 + 1) Ï 1496 := 11 × (1 + 1 + 1 + 1 + 11 × (1 + 11)) := 2 + ((2 × (22 − 2)) − 222/2) := 2 × (22 × ((2 × 22+2 ) + 2)) := 33 + ((((3 + 3) × 33+3 ) + 3)/3) := 33 + (33+3 + 33+3 ) := 3 + ((3 + 3) × 33 + ((33/3)3 )) := 444 + (4 × (44 + 4) + (4 + 4)/4) := 44 × 44 − (444 + 4/4) := 4 + (44 × 44 − 444) := 5 × 5 × 55 + 555/5 := 5 + (5 × 5 × 55 + 555/5) := 5/5 + ((5 × (5 × (55 + 5))) − 5) := ((66 − 6)/6) + (6 × (6 × (6 × 6 + 6) − 6)) := (6/6 + 6) × (6 × 6 × 6 − (6 × 6/(6 + 6))) := 6 × 66 + ((6666 − 66)/6) := ((77 × (((7 + 7)/7) + 7)) + 7)/7 := (7 + 7 + 7) × ((7/7 − 7) + 77) := 7 + ((77 × (7 + 7 + 7)) − ((7 + 7)/7)7 ) := 88 + ((8 − 88)/8 + 88 × (8 + 8)) := 8 + ((88 × (8 + 8) + 88/8) + 8 × 8) := 88 + 88 × (8 + 8) := 9 + (((9 × 9 × (9 + 9) + 9/9) + 9) + 9) := 9 × 9 × (9 + 9) + (99/((9 + 9 + 9)/9)) := ((9 − 9/9) + 9) × (99 − (99/9)) := ((22 + 2) × (2 2 − 2)) − 2 7 Ï 1487 := 11 + (1 + 11) × (1 + 1 + 111+1 ) Ï 1492 := (1 + 1)11 − (1 + 1111)/(1 + 1) := 2 + ((2/2 + 2) × (22/2 + 222 )) := 3 + (((((3 + 3) × 3 3+3 := 2 × ((2 × 222 ) − 222) 3 ) − 3)/3) + 3 ) 4 := 33 + ((((3 + 3) × 3 3+3 Ï 1497 := 1 + 11 × (1 + 1 + 1 + 1 + 11 × (1 + 11)) := (2 × 222 ) + ((22 + 2/2)2 ) ) + 3)/3) := 3 + ((3 + 3) × ((3 + 3)3 + 33)) := 44 × 44 − 444 := 4 + ((44 × 44 − 444) + 4/4) := 5 × 5 × 55 + (555 + 5)/5 := 5 + ((555 + 5)/5 + 5 × 5 × 55) := (5 + 5)/5 + ((5 × (5 × (55 + 5))) − 5) := 66/6 + (6 × (6 × (6 × 6 + 6) − 6)) := ((6/6 + 6) × (6 × 6 × 6 − (6 + 6)/6)) − 6 := 6 + ((6/6 + 6) × (6 × 6 × 6 − (6 × 6/(6 + 6)))) := (44 × (44 + 4)) − (4/4 + 4) 7 7 := 77 + ((((7 + 7 + 7)/7) ) − 777) := 7 + (77/7 × (((7 + 7)/7) + 7)) := 77 + ((7 × ((7 + 7) × (7 + 7) + 7)) − 7/7) := 8 + ((8/8 + 8 + 8) × (88 − 8/8)) := 88 + (88 × (8 + 8) − (8/((8 + 8)/8))) := 8/8 + (88 × (8 + 8) + 88) := 9 + ((9 × 9 × (9 + 9) + (99/9)) + 9) := ((9 + 9)/9) × (((9 × 9 × 9 − 9/9) + 9) + 9) := 9 + (9 × (9 × (9 + 9) − 9) + 999/9) 109 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1498 := (1 + 1)11 − (1111 − 11)/(1 + 1) Ï 1508 := (1 + 1)11−1 + (11 + 11)1+1 Ï 1503 := (1 + 1 + 1) × ((1 + 1)11−1−1 − 11) := 2 + (2 × (22 × ((2 × 22+2 ) + 2))) := (2/2 + 2)2 × (((22/2 + 2)2 ) − 2) := 222 + (22×(2+2)+2 ) := ((33 × 333) − 3)/(3 + 3) := 3 × (((3 + 3) × (3 × 33 + 3)) − 3) := 3 + (((3/3 + 3) + 3) × ((3 + 3)3 − 3/3)) := 44 + ((4 + 4)/4 × ((4/4 + 4)4 − 4)) := (4 × (444 − 4)) − (4/4 + 44 ) := 4 + ((4 + 4) × (444 − 44 )) := (5 × (5 × (55 + 5))) − (5 + 5)/5 := 5 + ((5 × (5 × (55 + 5))) − ((5 + 5)/5)) := ((55 + 5/5)/((5 + 5)/5)) − 55 := (6/6 + 6) × (6 × 6 × 6 − (6 + 6)/6) := (((6 − 66) + 6)/6) + 6 × 6 × (6 × 6 + 6) := (6 + 6)/6 + (6 × 6 × (6 × 6 + 6) − 6) := 77 + (7 × ((7 + 7) × (7 + 7) + 7)) := 7 × (7 × 7 + 7) + 7777/7 := 7 + ((((7 + 7 + 7)/7)7 ) − (7 × 7 × (7 + 7))) := 88 + (88 × (8 + 8) + ((8 + 8)/8)) := 8 + ((88 × (8 + 8) − 8/8) + 88) := 88 + (((88 + 8)/8) + 88 × (8 + 8)) := 999 + (((9 × 999) − 9)/(9 + 9)) := 9 + ((9 + 9) × (((9 + 9)/9) + 9 × 9)) := 9 × 9 × (9 + 9) + ((9 × 99 + 9)/(9 + 9)) Ï 1499 := 11 + (1 + 11) × (1 + 1 + 1 + 111+1 ) := ((2 × (22 − 2) − 2/2)2 ) − 22 3 Ï 1504 := 1 + (1 + 1 + 1) × ((1 + 1)11−1−1 − 11) Ï 1509 := 1 + (1 + 1)11−1 + (11 + 11)1+1 := 2 × (2 × ((22 − 2)2 − (22 + 2))) := 222 + ((222/2 + 2)/2) 3 := ((3 × 333) + 3)/(3 + 3) := 3 × (((3 − 3/3)3×3 ) − 3 × 3) := ((3 × 333) + 33)/(3 + 3) 4 4 := ((4/4 + 4) × (44 + 4 )) − 4/4 := (4 + 4) × (444 − 4 ) := (5 × (5 × (55 + 5))) − 5/5 := 5 + ((5 × (5 × (55 + 5))) − 5/5) := 5 + (((5 × (5 × (55 + 5))) − 5/5) + 5) := 6 × 6 × (6 × 6 + 6) − (6/6 + 6 + 6) := 6 × 6 × (6 × 6 + 6) − ((6 + 6)/6 + 6) := 6 × 6 × (6 × 6 + 6) − 6 × 6/(6 + 6) := 7 + ((77/7 × (((7 + 7)/7)7 + 7)) + 7) := (7/7 + 7) × (777/7 + 77) := (((7 + 7)/7)77/7 ) − 7 × 77 := 88 + ((88 × (8 + 8) − 8) + (88/8)) := 8 + (88 × (8 + 8) + 88) := 8 + ((88/8 + 8) × (88 − (8/8 + 8))) := 999 + (((9 × 999) + 9)/(9 + 9)) := 9 + (((9 + 9) × (((9 + 9)/9) + 9 × 9)) + 9/9) := ((9 + 9 + 9)/9) × ((((9 + 9)/9)9 ) − 9) Ï 1500 := (1 + 1 + 1) × (11 − 1)1+1+1 /(1 + 1) := 2 × ((22 × ((2 × 22+2 ) + 2)) + 2) 3 := (3 × 3 + 3) × ((3 − 3/3 + 3) ) 4 := 4 × 44 + ((44 × 44 + 4)/4) Ï 1505 := (1 + 11)1+1+1 − 1 − (1 + 1) × 111 Ï 1510 := ((1 + 1 + 1) × (1 + 1 + 11))1+1 − 11 := 222 + (((222/2 − 2)/2) − 2) := 2 + ((22×(2+2)+2 ) + 222 ) 3 := ((3/3 + 3) + 3) × ((3 + 3) − 3/3) := 3/3 + (3 × (((3 − 3/3)3×3 ) − 3 × 3)) 4 := (4/4 + 4) × (44 + 4 ) := 4/4 + ((4 + 4) × (444 − 4 )) := 4 + ((4 + 4)/4 × (4/4 + 4)4 + 44 ) := 5 × (5 × (55 + 5)) := 5 + (5 × (5 × (55 + 5))) := 5 + ((5 × (5 × (55 + 5))) + 5) := 6 × 6 × (6 × 6 + 6) − 6 − 6 := (6/6 + 6) × (6 × 6 × 6 − 6/6) := ((7 + 7)/7)7 + (7 × (7 + 7) × (7 + 7)) := 7 × (7 × 7 × 7 − ((7 + 7)/7)7 ) := 6 × 6 × (6 × 6 + 6) − (6 + 6)/6 := 7 + (7777/7 + 7 × (7 × 7 + 7)) := 88 + (88 × (8 + 8) + (8/((8 + 8)/8))) := 8 + ((88 × (8 + 8) + 88) + 8/8) := 88 × (8 + 8) + ((888 − 8)/8 − 8) := 999 + ((((9 + 9)/9)9 ) − (99/9)) := 9 + (((9 − 9/9) + 9) × (99 − (99/9))) := 999 + ((((9 + 9)/9)9 ) − 9/9) Ï 1501 := 1 + (1 + 1 + 1) × ((11 − 1)1+1+1 /(1 + 1)) Ï 1506 := (1 + 11)1+1+1 − (1 + 1) × 111 Ï 1511 := 1111 + ((1 + 1) × (11 − 1))1+1 := 2 + (((2 × (22 − 2) − 2/2)2 ) − 22) := 222 + ((22×(2+2)+2 ) − 2) := (22 − 2)2 + 2222/2 := 3 + (((33 × 333) − 3)/(3 + 3)) := 3 + (3 × (((3 + 3) × (3 × 33 + 3)) − 3)) := 3 × 333 + ((3 − 3/3)3×3 ) := 4/4 + ((4/4 + 4) × (44 + 44 )) := 44 + (4 + 4)/4 × (4/4 + 4)4 := ((44 − 4) × ((4 + 4)/4 + 4)) − 4/4 := 5/5 + (5 × (5 × (55 + 5))) := 5 + ((5 × (5 × (55 + 5))) + 5/5) := 55/5 + (5 × (5 × (55 + 5))) := 6 × 6 × (6 × 6 + 6) − 66/6 := 6 × 6 × (6 × 6 + 6) − 6 := 6 × 6 × (6 × 6 + 6) − 6/6 := (((7 + 7 + 7)/7)7 ) − (7 × 7 × (7 + 7)) := (77 × (7 + 7 + 7)) − 777/7 := ((77 + 7) × (77/7 + 7)) − 7/7 := (88/8 + 8) × (88 − (8/8 + 8)) := 8 + ((88 × (8 + 8) + ((8 + 8)/8)) + 88) := 888/8 + (88 × (8 + 8) − 8) := (9/9 + 9 + 9) × (9 × 9 − ((9 + 9)/9)) := 9 + ((9 × (9 × (9 + 9) − 9) + 999/9) + 9) := 999 + (((9 + 9)/9)9 ) Ï 1502 := (1 + 1 + 1) × ((1 + 1)11−1−1 − 11) − 1 := 2 × (((2/2 + 2) 2+2+2 ) + 22) 3 := 3 + (((3 × 333) + 3)/(3 + 3)) 4 4 Ï 1507 := 11 × (111 + ((1 + 1) × (1 + 1 + 11))) 2 := 22 + ((2 22/2 := 2 × (2 × ((22 − 2)2 − 22)) − 2)/2) 3 := 3 × ((3 + 3) × (3 × 33 + 3)) := 3 + (((3 × 333) + 33)/(3 + 3)) 4−4/4 := 4 + ((4 + 4)/4 × (4/4 + 4) − 4) := 4 × 44 + ((44/4) := (5 + 5)/5 + (5 × (5 × (55 + 5))) := 5 + ((5 × (5 × (55 + 5))) + ((5 + 5)/5)) := ((6 − 66)/6) + 6 × 6 × (6 × 6 + 6) := 6/6 + (6 × 6 × (6 × 6 + 6) − 6) := 7 × (7 × 7 + 7) + (7777 − 7)/7 Ï 1512 := (11 − 1 − 1) × ((1 + 1 + 11)1+1 − 1) := (44 − 4) × ((4 + 4)/4 + 4) ) := ((55 + 5)/5) + (5 × (5 × (55 + 5))) := 6 × 6 × (6 × 6 + 6) 7 := 7 + ((7 × (7 + 7) × (7 + 7)) + ((7 + 7)/7) ) := (77 + 7) × (77/7 + 7) := 8 + ((88 × (8 + 8) − ((8 + 8)/8)) + 88) := 88 + (88 × (8 + 8) + 88/8) := (8 + 8 + 8) × (8 × 8 − 8/8) := 999 + ((((9 + 9)/9)9 ) − 9) := 9 × 9 × (9 + 9) + ((9 × 99 − 9)/(9 + 9)) := (9 + 9) × (((9 + 9 + 9)/9) + 9 × 9) 110 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1513 := (1 + ((111 − 1)/(1 + 1))1+1 )/(1 + 1) Ï 1518 := 11 × (111 + (1 + 1 + 1)1+1+1 ) Ï 1523 := 1 + 1 + ((1 + 1 + 1) × (1 + 1 + 11))1+1 := 2 + 2222/2 + (22 − 2)2 := 222 + (2 + 2 + 2)2+2 := 2 + ((2 × (22 − 2) − 2/2)2 ) := 3/3 + (3 × ((3 + 3) × (3 × 33 + 3))) := 3 × (((3 − 3/3)3×3 ) − (3 + 3)) := ((33/3)3 ) + (3 × ((3/3 + 3)3 )) := 4/4 + ((44 − 4) × ((4 + 4)/4 + 4)) := ((4 + 4)/4 + 4) × ((4/4 − 4) + 44 ) := 4 + (4 × 444 − (4/4 + 44 )) := (55 × 55 + 5/5)/((5 + 5)/5) := 5 + ((55 × 55 + 5/5)/((5 + 5)/5)) := (5 × ((5 × (55 + 5)) + 5)) − (5 + 5)/5 := 6/6 + 6 × 6 × (6 × 6 + 6) := 6 + 6 × 6 × (6 × 6 + 6) := 66/6 + 6 × 6 × (6 × 6 + 6) := 7/7 + ((77 + 7) × (77/7 + 7)) := (7 × (7 × (7 × 7 − 7) − 77)) − 7/7 := 77/7 + ((77 + 7) × (77/7 + 7)) := (8/8 + 8 + 8) × (8/8 + 88) := 88 × (8 + 8) + (888 − 8)/8 := ((9 − 9/9) + 9) × ((9 × 9 − 9/9) + 9) Ï 1514 := 1 + (1 + ((111 − 1)/(1 + 1))1+1 )/(1 + 1) := 88/8 + ((8 + 8 + 8) × (8 × 8 − 8/8)) 9 := 9 + (((9 + 9 + 9)/9) × ((((9 + 9)/9) ) − 9)) := (9 + 9)/9 + ((9 × (99 + 9 × 9)) − 99) Ï 1524 := 1 + 1 + 1 + ((1 + 1 + 1) × (1 + 1 + 11))1+1 Ï 1519 := (1 + 1)11 − (1 + 11 + 11)1+1 := 2 + 2 × 2 × ((22 − 2)2 − 22) := ((2 × (22 − 2) − 2/2)2 ) − 2 := (2 + 2 + 2) × (22×(2+2) − 2) := (3 + 3)3 + (((33/3)3 ) − 33) := ((3/3 + 3) + 3) × ((3 + 3)3 + 3/3) := 3 + ((33 + 3 + 3)3−3/3 ) := 44 + ((4 + 4)/4 × ((4/4 + 4)4 + 4)) := 4 × 444 − (4/4 + 44 ) := 4 + (4 × 444 − 44 ) := (5 × ((5 × (55 + 5)) + 5)) − 55/5 := (5 × ((5 × (55 + 5)) + 5)) − (5/5 + 5) := (5 × ((5 × (55 + 5)) + 5)) − 5/5 := (6 + 6)/6 + 6 × 6 × (6 × 6 + 6) := 6 + (6 × 6 × (6 × 6 + 6) + 6/6) := 6 + (6 × 6 × (6 × 6 + 6) + 6) := ((7 + 7)/7) + ((77 + 7) × (77/7 + 7)) := 7 × (7 × (7 × 7 − 7) − 77) := ((7 + 7)/7) × (777 − (7/7 + 7 + 7)) := 8/8 + ((8/8 + 8 + 8) × (8/8 + 88)) := 888/8 + 88 × (8 + 8) := ((88 + 8)/8) × (8 × (8 + 8) − 8/8) := 9 × 9 × (9 + 9) + ((999 + 9)/(9 + 9)) := (9 × (9 × (9 + 9) + 9)) − (99/9 + 9) := 9 × 9 + (999/9 × ((99 + 9 + 9)/9)) Ï 1515 := (1 + 1 + 1 + 1 + 11) × (1 + (11 − 1)1+1 ) Ï 1520 := ((1 + 1 + 1) × (1 + 1 + 11))1+1 − 1 Ï 1525 := (1 + 1 + 1) × (1 + 1)11−1−1 − 11 := (2/2 + 2) × (222 − 2/2 + 22) := 2 + ((2 + 2 + 2)2+2 + 222) := 2 + (((2 × (22 − 2) − 2/2)2 ) + 2) := 3 + (3 × ((3 + 3) × (3 × 33 + 3))) := (3 + 3)3 + (((33/3)3 ) − 33 ) := (3 × ((3 − 3/3)3×3 )) − 33/3 := 4 × 444 − ((4/4 + 44 ) + 4) := 4 × 444 − 44 := 4 + 4 × 444 − 44 + 4/4 := 5 + (((5 × (5 × (55 + 5))) + 5) + 5) := (5 × ((5 × (55 + 5)) + 5)) − 5 := 5 × ((5 × (55 + 5)) + 5) := (6 × 6/(6 + 6)) + 6 × 6 × (6 × 6 + 6) := 6 + (6 × 6 × (6 × 6 + 6) + ((6 + 6)/6)) := 6 + ((6 × 6 × (6 × 6 + 6) + 6/6) + 6) := (7/7 + 7 + 7) × (7777/77) := 7/7 + (7 × (7 × (7 × 7 − 7) − 77)) := (((7 + 7) × (777 − (7 + 7))) − 7)/7 := (8 + 8) × (88 − 8/8 + 8) := 8 × 8 × (8 + 8 + 8) − 88/8 := 8 + ((88 × (8 + 8) + 88/8) + 88) 9 := 9 × 9 × (9 + 9) + (((((9 + 9)/9) ) + 9/9)/9) Ï 1516 := 1 + ((1 + 1 + 1 + 1 + 11) × (1 + (11 − 1)1+1 )) 9 := 9 × 9 + (((99/9 + 9 + 9) + 9)(9+9)/9 ) := 9 + ((((9 + 9)/9) ) + 999) Ï 1521 := ((1 + 1 + 1) × (1 + 1 + 11))1+1 2 Ï 1526 := (1 + (1 + 1 + 11)) × (111 − 1 − 1) := 2 × ((2 × ((22 − 2)2 − 22)) + 2) := (2 × (22 − 2) − 2/2) := 2 + ((2 + 2 + 2) × (22×(2+2) − 2)) := 3 + ((3 × ((3 + 3) × (3 × 33 + 3))) + 3/3) := (33 + 3 + 3)3−3/3 := 33 × (3 + 3) + (((33/3)3 ) − 3) := 4 × 444 − (44 + 4) := 4/4 + (4 × 444 − 44 ) := (((4 + 4)/4 + 4) × (44 − 4/4)) − 4 := 5 + ((5 × (5 × (55 + 5))) + (55/5)) := 5/5 + ((5 × ((5 × (55 + 5)) + 5)) − 5) := 6 + (6 × 6 × (6 × 6 + 6) − ((6 + 6)/6)) 77/7 := 7 + ((((7 + 7)/7) ) − 7 × 77) 6 := 66 × (6 + 6) + ((6 × 6/(6 + 6)) ) := (((7 − 77)/7) + 7 × 7) (7+7)/7 := 5/5 + (5 × ((5 × (55 + 5)) + 5)) := (6/6 + 6) × (6 × 6 × 6 + (6 + 6)/6) := 7 + (7 × (7 × (7 × 7 − 7) − 77)) := 8 × 8 × (8 + 8 + 8) − ((88 + 8)/8 + 8) := 8 + ((8/8 + 8 + 8) × (8/8 + 88)) := (8 − 88)/8 + 8 × 8 × (8 + 8 + 8) := 9 + (((9 × 99 − 9)/(9 + 9)) + 9 × 9 × (9 + 9)) := (9 × (99 + 9 × 9)) − 99 := (9 + 9) × 99 − (((9 + 9)/9)9−9/9 ) Ï 1517 := (11 × (111 + (1 + 1 + 1)1+1+1 )) − 1 Ï 1522 := 1 + ((1 + 1 + 1) × (1 + 1 + 11))1+1 2 Ï 1527 := 1 + (1 + 1 + 1 + 11) × (111 − 1 − 1) := ((2 × (22 − 2) − 2/2) ) − 2 − 2 := 2/2 + ((2 × (22 − 2) − 2/2) ) := 2 + ((((2 × (22 − 2) − 2/2)2 ) + 2) + 2) := 3 + ((((33/3)3 ) − 33) + (3 + 3)3 ) := 3/3 + ((33 + 3 + 3)3−3/3 ) := 3 × (((3 − 3/3)3×3 ) − 3) := 4/4 + (4 × 444 − (44 + 4)) := (4 + 4)/4 + (4 × 444 − 44 ) := 4 + ((4 × 444 − (4/4 + 44 )) + 4) := 5 + ((5 × (5 × (55 + 5))) + ((55 + 5)/5)) := (5 + 5)/5 + ((5 × ((5 × (55 + 5)) + 5)) − 5) := (5 + 5)/5 + (5 × ((5 × (55 + 5)) + 5)) := 6 + (6 × 6 × (6 × 6 + 6) − 6/6) := ((66 − 6)/6) + 6 × 6 × (6 × 6 + 6) := 6 + (((6 × 6/(6 + 6))6 ) + 66 × (6 + 6)) := (7 × (7 × (7 × 7 − 7) − 77)) − (7 + 7)/7 := ((77 + 7)/7 × ((7 + 7)/7)7 ) − (7 + 7) := (((7 + 7) × (777 − (7 + 7))) + 7)/7 2 := 8 × 8 × (8 + 8 + 8) − (88/8 + 8) := (8 + 8)/8 + ((8 + 8) × (88 − 8/8 + 8)) := 8 × 8 × (8 + 8 + 8) − (8/8 + 8) := (9 × (9 × (9 + 9) + 9)) − ((99 + 99)/9) := 9/9 + ((9 × (99 + 9 × 9)) − 99) := (9 × (9 × (9 + 9) + 9)) − (99 + 9)/9 111 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1528 := 1 + (1 + (1 + 1 + 1 + 11) × (111 − 1 − 1)) Ï 1533 := (1 + 1 + 1) × ((1 + 1)11−1−1 − 1) Ï 1538 := 1 + (1 + ((1 + 1 + 1) × (1 + 1)11−1−1 )) := 2 × (2 × ((22+2 × (22 + 2)) − 2)) := (2/2 + 2) × ((2 := 3/3 + (3 × (((3 − 3/3)3×3 ) − 3)) := (3 × ((3 − 3/3)3×3 )) − 3 := 3 + ((3 × ((3 − 3/3)3×3 )) − 3/3) := 4 + ((4 × 444 − 44 ) + 4) := 4/4 + ((4 × (4 + 4) × (44 + 4)) − 4) := (4 + 4)/4 + (4 × (4 + 4) × (44 + 4)) (2/2+2)2 ) − 2/2) := 2 + ((2 + 2 + 2) × 22×(2+2) ) := 5 + ((5 × ((5 × (55 + 5)) + 5)) − ((5 + 5)/5)) := ((5/5 + 5) − 555/5)/5 := ((55 + 5/5)/((5 + 5)/5)) − 5 × 5 := 6 + (6 × 6 × (6 × 6 + 6) + ((66 − 6)/6)) := (6/6 + 6) × ((6 × 6/(6 + 6)) + 6 × 6 × 6) := ((6 − 66)/6) + 6 × 6 × (6 × 6 + 6 + 6) := (77 × (7 + 7 + 7)) − (77 + 7) := ((7 + 7)/7) × (777 − (7/7 + 7)) := 8 × 8 × (8 + 8 + 8) − 8 := 8 + (8 × 8 × (8 + 8 + 8) − (88/8)) := (8 + 8)/8 + 8 × 8 × (8 + 8 + 8) := (9 × (9 × (9 + 9) + 9)) − 99/9 := ((9 + 9 + 9)/9) + ((9 × (9 × (9 + 9) + 9)) − 9) := (9 × (9 × (9 + 9) + 9)) − 9/9 := 7 + ((((7 − 77)/7) + 7 × 7) (7+7)/7 ) Ï 1529 := 11 × (((11 − 1) × (1 + (1 + 1 + 11))) − 1) 5 Ï 1534 := 1 + ((1 + 1 + 1) × ((1 + 1)11−1−1 − 1)) Ï 1539 := (1 + 1 + 1) × (1 + (1 + 1)11−1−1 ) := 2 × (2 + 2) + ((2 × (22 − 2) − 2/2)2 ) := ((2 + 2 + 2) × 22×(2+2) ) − 2 := 2 + (((2 + 2 + 2) × 22×(2+2) ) + 2/2) := 33 × (3 + 3) + ((33/3)3 ) := 3/3 + ((3 × ((3 − 3/3)3×3 )) − 3) := 3 + (3 × ((3 − 3/3)3×3 )) 4 := 4 + (((4 × 444 − 44 ) + 4/4) + 4) := 4 + (((4 + 4)/4 + 4) × (4 − 4/4)) := 4 + ((4 × (4 + 4) × (44 + 4)) − 4/4) := 5 + ((5 × ((5 × (55 + 5)) + 5)) − 5/5) := (5 × 5 + 5/5) × (55 − 5/5 + 5) := (55 × (5 × 5 + 5)) − 555/5 := 6 + (6 × 6 × (6 × 6 + 6) + (66/6)) := (6/6 + 6 + 6) × ((666 + 6)/6 + 6) := 6 + ((6/6 + 6) × ((6 × 6/(6 + 6)) + 6 × 6 × 6)) := ((77 + 7)/7 × ((7 + 7)/7) ) − 7 := (7 − 7/7 + 7) × (777/7 + 7) := (((7 + 7) × (777 − 7)) − 7)/7 := 8/8 + (8 × 8 × (8 + 8 + 8) − 8) := 8 × 8 × (8 + 8 + 8) − (8 + 8)/8 := 88/8 + (8 × 8 × (8 + 8 + 8) − 8) := (9 × (9 × (9 + 9) + 9)) − 9/9 − 9 := ((9 − 99)/(9 + 9)) + (9 × (9 × (9 + 9) + 9)) := 9 × (9 × (9 + 9) + 9) 7 Ï 1530 := (11 − 1) × ((11 × (1 + (1 + 1 + 11))) − 1) := (2/2 + 2) × ((2 (2/2+2)2 ) − 2) Ï 1535 := ((1 + 1 + 1) × (1 + 1)11−1−1 ) − 1 := ((2 + 2 + 2) × 22×(2+2) ) − 2/2 3×3 := (3 × ((3 − 3/3) := ((4 + 4)/4 + 4) × (44 − 4/4) := (4 × (4 + 4) × (44 + 4)) − 4/4 := 6 + ((6 × 6 × (6 × 6 + 6) + 6) + 6) := 22 × ((2 × (22 + 2)) + 22) := 3 + ((3 × ((3 − 3/3)3×3 )) + 3/3) := 3 + (3 × (((3 − 3/3)3×3 ) − 3)) := 5 + (5 × ((5 × (55 + 5)) + 5)) Ï 1540 := (111 − 1) × (1 + (1 + 1 + 11)) )) − 3/3 5 := 4 + (4 × (4 + 4) × (44 + 4)) := 5 × ((55 + 5)/(5 + 5) − 5) := 5 × (5 − 55)/(5 + 5) := 6 + ((6 × 6 × (6 × 6 + 6) + (66/6)) + 6) 7 := (6/6 + 6) × ((6 × 6 × 6 − (6 + 6)/6) + 6) := 77 × ((7 − 7/7 + 7) + 7) := (77/7 + 7) × (7/7 + 77 + 7) := (((77 + 7) × ((7 + 7)/7) ) − 7)/7 := (8 + 8)/8 + (8 × 8 × (8 + 8 + 8) − 8) := 8 × 8 × (8 + 8 + 8) − 8/8 := (8/((8 + 8)/8)) + 8 × 8 × (8 + 8 + 8) := ((9 − 9 × 9)/(9 + 9)) + (9 × (9 × (9 + 9) + 9)) := 9/9 + (9 × (9 × (9 + 9) + 9)) := (9 × (9 × (9 + 9) + 9)) − 9 Ï 1531 := 1 + ((11 − 1) × ((11 × (1 + (1 + 1 + 11))) − 1)) := 2 + (((2 × (22 − 2) − 2/2)2 ) + 2 × (2 + 2)) Ï 1536 := (1 + 1 + 1) × (1 + 1)11−1−1 := (2 + 2 + 2) × 2 Ï 1541 := 1 + ((111 − 1) × (1 + (1 + 1 + 11))) 2×(2+2) := ((2 × 22 + 2/2)2 ) − 222 := 3 + ((3 × (((3 − 3/3)3×3 ) − 3)) + 3/3) := 3 × ((3 − 3/3)3×3 ) := (3 + 3)3 + (((33/3)3 ) − (3 + 3)) := 44 + (4/4 + 4) × (44 − 4/4) := 4 × (4 + 4) × (44 + 4) := 4 + ((4 × (4 + 4) × (44 + 4)) + 4/4) := 5 + ((5 × ((5 × (55 + 5)) + 5)) + 5/5) := 5/5 + (5 × (5 − 55)/(5 + 5)) := 5/5 + (5 × ((55 + 5)/(5 + 5) − 5)) := 6 × (((6 + 6)/6)6+(6+6)/6 ) := (66 + 6/6) × ((66/6 + 6) + 6) := 6 + (((6 × 6 × (6 × 6 + 6) + 6/6) + 6) + 6) 5 7 := (77 + 7)/7 × ((7 + 7)/7) := (((7 + 7) × (777 − 7)) + 7)/7 := 88/8 + ((8 + 8) × (88 − 8/8 + 8)) := 8 × 8 × (8 + 8 + 8) := 8 + ((8 × 8 × (8 + 8 + 8) − (88/8)) + 8) := 9/9 + ((9 × (9 × (9 + 9) + 9)) − 9) := ((9 + 9 + 9)/9) × (((9 + 9)/9)9 ) := (9 + 9)/9 + (9 × (9 × (9 + 9) + 9)) := 77 + (7777/7 + 7 × 7 × 7) Ï 1532 := 11 + ((1 + 1 + 1) × (1 + 1 + 11))1+1 := 2 × ((2 × (2 2+2 × (22 + 2))) − 2) Ï 1537 := 1 + ((1 + 1 + 1) × (1 + 1)11−1−1 ) := 2/2 + ((2 + 2 + 2) × 2 2×(2+2) ) Ï 1542 := 1 + (1 + ((111 − 1) × (1 + (1 + 1 + 11)))) := (2 × 22 − 2)2 − 222 := 3 + (33 × (3 + 3) + ((33/3)3 )) := 3/3 + (3 × ((3 − 3/3)3×3 )) := 3 + ((3 × ((3 − 3/3)3×3 )) + 3) := (4 × (4 + 4) × (44 + 4)) − 4 := 4/4 + (4 × (4 + 4) × (44 + 4)) := ((4 + 4)/4 + 4) × (4/4 + 44 ) := ((5 + 5)/5)5 + (5 × (5 × (55 + 5))) := ((55 − 5/5)/((5 + 5)/5)) − 5 × 5 := 5 + (((55 − 5/5)/((5 + 5)/5)) − 5 × 5) := 6 + ((6/6 + 6) × (6 × 6 × 6 + (6 + 6)/6)) := 6 × 6 × (6 × 6 + 6 + 6) − 66/6 := 6 × 6 × (6 × 6 + 6 + 6) − 6 7 := ((7 + 7)/7) × (777 − (77/7)) := (((77 + 7) × ((7 + 7)/7) ) + 7)/7 := ((7 + 7)/7) × ((777 − 7) + 7/7) := 8 × 8 × (8 + 8 + 8) − (8/((8 + 8)/8)) := 8/8 + 8 × 8 × (8 + 8 + 8) := 8 + (8 × 8 × (8 + 8 + 8) − ((8 + 8)/8)) := (9 + 9)/9 + ((9 × (9 × (9 + 9) + 9)) − 9) := (9 × (9 × (9 + 9) + 9)) − (9 + 9)/9 := ((9 + 9 + 9)/9) + (9 × (9 × (9 + 9) + 9)) 112 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1548 := 1 + ((1 + 1 + 11) × (111+1 − (1 + 1))) Ï 1543 := (111 × (1 + (1 + 1 + 11))) − 11 2 2×(2+2) Ï 1553 := (111 × (1 + (1 + 1 + 11))) − 1 := 222 + (22/2)2/2+2 := 22 + ((2 × (22 − 2) − 2/2) ) := (2 + 2 + 2) × (2 := ((((3 × (3 + 3)) + 3)3 ) − 3)/(3 + 3) := 3 + (3 × (((3 − 3/3)3×3 ) + 3)) := 3 + (33/3)3 + (3 + 3)3 + 3 := 4 + (((4 × (4 + 4) × (44 + 4)) − 4/4) + 4) := 44 + (((4 + 4)/4 + 4)4 − 4) := 4/4 + (((4 + 4)/4 + 4)4 + 44 ) := 5 + (((55 + 5/5)/((5 + 5)/5)) − 5 × 5) := (((5/5 + 5)5 − (55/5))/5) − 5 := ((5/5 + 5)5 − (55/5))/5 := 6/6 + (6 × 6 × (6 × 6 + 6 + 6) − 6) := 6 × (6 × (6 × 6 + 6) + 6) := 6 + 6 × (6 × (6 × 6 + 6) + 6) − 6/6 := (((7 + 7) × 777) − 77)/7 := ((((7 + 7) × 777) + 7)/7) − 7 := (((7 + 7) × 777) − 7)/7 := 8 + (8 × 8 × (8 + 8 + 8) − 8/8) := ((88 + 8)/8) + 8 × 8 × (8 + 8 + 8) := 8 + ((8 × 8 × (8 + 8 + 8) + 8/8) + 8) := 999 + (((99 × 99) − 9)/(9 + 9)) := 9 + (9 × (9 × (9 + 9) + 9)) := 9 + ((((99 × 99) + 9)/(9 + 9)) + 999) Ï 1544 := 1 + ((111 × (1 + (1 + 1 + 11))) − 11) 2 2 3 3 + 2) Ï 1549 := ((1 + 1 + 11) × (111+1 − 1)) − 11 2 := 2 × 22 + ((22 + 2) ) Ï 1554 := 111 × (1 + (1 + 1 + 11)) := 2 + ((22/2 + 2) × ((22/2) − 2)) := 222 × ((2/2 + 2 + 2) + 2) := (3 + 3) + (((33/3) ) − 3) := ((((3 × (3 + 3)) + 3)3 ) + 33)/(3 + 3) := 3 × ((((3 − 3/3)3×3 ) + 3) + 3) := 4 + ((4 × (4 + 4) × (44 + 4)) + 4) := 4/4 + ((((4 + 4)/4 + 4)4 − 4) + 44 ) := 444 + (4444 − 4)/4 := ((5/5 + 5) − (55 + 5/5))/5 := (5 × (55 − 5)/(5 + 5)) − 55/5 := ((5/5 + 5)5 − (5/5 + 5))/5 := (6 + 6)/6 + 6 × (6 × (6 × 6 + 6) + 6) − 6 := 6/6 + 6 × (6 × (6 × 6 + 6) + 6) := 6 + 6 × (6 × (6 × 6 + 6) + 6) 5 := ((((7 + 7) × 777) − 77) + 7)/7 := (((7 + 7)/7) × (777 + 7/7)) − 7 := (7 + 7) × 777/7 := 8 + 8 × 8 × (8 + 8 + 8) := 8 × 8 × (8 + 8 + 8) + (88 + 8 + 8)/8 := 888/8 × ((8 − (8 + 8)/8) + 8) := 999 + (((99 × 99) + 9)/(9 + 9)) := 9 + ((9 × (9 × (9 + 9) + 9)) + 9/9) := 9 + ((((9 + 9 + 9)/9) × (((9 + 9)/9)9 )) + 9) Ï 1545 := 1 + (1 + ((111 × (1 + (1 + 1 + 11))) − 11)) 2 := 2 + (((2 × (22 − 2) − 2/2) ) + 22) Ï 1550 := (11 − 1) × (11 + (1 + 11)1+1 ) Ï 1555 := 1 + (111 × (1 + (1 + 1 + 11))) := 2 + ((2 + 2 + 2) × (22×(2+2) + 2)) := 2 × 222 + 2222/2 := 3 + (((33/3)3 ) + (3 + 3)3 ) := ((333 × (33/3 + 3)) + 3)/3 := 4 + ((((4 + 4)/4 + 4) × (4/4 + 44 )) + 4) := 444 + 4444/4 := 5 + (5 × ((5 + 5)/(5 + 5) − 5)) := 5 × (((5 × (55 + 5)) + 5) + 5) := 55 + (5 × (5 × (55 + 5))) := 6 × 6 × (6 × 6 + 6) + (66 × 6/(6 + 6)) := (6 + 6)/6 + 6 × (6 × (6 × 6 + 6) + 6) := 6 + 6 × (6 × (6 × 6 + 6) + 6) + 6/6 := (((7 + 7)/7) × (777 − 7/7)) − 7 := 7 + ((((7 + 7) × 777) − 77)/7) := (((7 + 7) × 777) + 7)/7 3×3 := 3 × (((3 − 3/3) ) + 3) := 4 + (((4 × (4 + 4) × (44 + 4)) + 4/4) + 4) 5 := 8 + (8 × 8 × (8 + 8 + 8) + 8/8) 9 := 9 + (((9 + 9 + 9)/9) × (((9 + 9)/9) )) Ï 1546 := ((1 + 1 + 11) × (111+1 − (1 + 1))) − 1 := 8 + ((8 × 8 × (8 + 8 + 8) − ((8 + 8)/8)) + 8) := 8 + (8 × 8 × (8 + 8 + 8) + (88/8)) := 99/9 + (9 × (9 × (9 + 9) + 9)) := 99 + (9 × 9 × (9 + 9) − ((9 + 9)/9)) Ï 1551 := 11 × ((1 + 11)1+1 − (1 + 1 + 1)) Ï 1556 := 1 + (1 + (111 × (1 + (1 + 1 + 11)))) := 2 + (2 × 222 + ((22 + 2)2 )) := 222 + ((22/2)2/2+2 − 2) := 2 × ((2 × (22 − 2))2 − 22) := 3 + (((((3 × (3 + 3)) + 3)3 ) − 3)/(3 + 3)) := 33 × (33/3 + 33 + 3) := 3 × 3 + (((33/3)3 ) + (3 + 3)3 ) := 4 + (((4 + 4)/4 + 4) × (4/4 + 44 )) := 44 + (((4 + 4)/4 + 4)4 − 4/4) := 4 + (((4 + 4)/4 + 4)4 + 44 ) := 55 − ((5 − 5/5)5 + 555) := 5/5 + (5 × (((5 × (55 + 5)) + 5) + 5)) := (((5/5 + 5)5 − 5/5) + 5)/5 := 6 × (6 × (6 × 6 + 6) + 6) − (6 + 6)/6 := 66/6 × ((666/6 − 6) + 6 × 6) := 6 + 6 × (6 × (6 × 6 + 6) + 6) + (6 + 6)/6 := ((((7 + 7) × 777) − 7)/7) − 7 := (((7 + 7) × (777 − 7)) + 77)/7 := ((7 + 7)/7) × (777 + 7/7) := 8 + (8 × 8 × (8 + 8 + 8) + ((8 + 8)/8)) := 8 + ((8 × 8 × (8 + 8 + 8) − 8/8) + 8) := 8 + (8 × 8 × (8 + 8 + 8) + ((88 + 8)/8)) := ((99 + 9)/9) + (9 × (9 × (9 + 9) + 9)) := 99 + (9 × 9 × (9 + 9) − 9/9) := 9 + ((9 × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) Ï 1547 := (1 + 1 + 11) × (111+1 − 1 − 1) 2 := (22/2 + 2) × ((22/2) − 2) Ï 1552 := (111 × (1 + (1 + 1 + 11))) − 1 − 1 := 2 × (2 × (2 × (((2 2+2 2 Ï 1557 := 1 + (1 + (1 + (111 × (1 + (1 + 1 + 11))))) − 2) ) − 2))) := 2 + 2222/2 + 2 × 222 3 := (3 + 3)3 + ((33/3)3 ) := 3 + ((3 × (3 + 3) + 3) + 33)/(3 + 3) := 3 × ((3 × (3 + 3) × 33 ) + 33) := 44/4 + (4 × (4 + 4) × (44 + 4)) := 4 × ((4 + 4) × (44 + 4) + 4) := 4 + ((((4 + 4)/4 + 4)4 + 44 ) + 4/4) := ((55 − 5/5)/((5 + 5)/5)) − (5 + 5 + 5) := ((55 − 5/5)/((5 + 5)/5)) − 5 − 5 := (55 − (55/5))/((5 + 5)/5) := 6 × (6 × (6 × 6 + 6) + 6) − 6/6 := 6 + 6 × (6 × (6 × 6 + 6) + 6) − (6 + 6)/6 := 6 + 6 × (6 × (6 × 6 + 6) + 6) + 6 × 6/(6 + 6) := 777 + (777 − 7) := ((7 + 7)/7) × (777 − 7/7) := (((((7 + 7) × 777) + 7) + 7) + 7)/7 := 88/8 + 8 × 8 × (8 + 8 + 8) := 8 + (8 × 8 × (8 + 8 + 8) + 8) := (88/8 − 8) × ((8 × 8 × 8 − 8/8) + 8) := 9 + ((9 × (9 × (9 + 9) + 9)) − 9/9) := (9 × (9 × (9 + 9) + 9)) + ((99 + 9 + 9)/9) := 99 + 9 × 9 × (9 + 9) 113 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1558 := ((1 + 1 + 11) × (111+1 − 1)) − 1 − 1 2 Ï 1563 := 1 + (11 × ((1 + 11)1+1 − (1 + 1))) 22/2 2 Ï 1568 := (1 + 111) × (1 + (1 + 1 + 11)) := 2 × ((22 + 2 + 2 + 2)2 ) := 2 + 2 × (2 × (22 − 2) − 22) := 2 := 3 + (((333 × (33/3 + 3)) + 3)/3) := 3 × (((3 − 3/3)3×3 ) + 3 × 3) := (33/3 + 3) × ((333 + 3)/3) := 4 + ((4444 − 4)/4 + 444) := 4 + ((4444/4 + 444) + 4) := (4 + 4) × ((4 × (44 + 4)) + 4) := ((5 + 5/5)/((5 + 5)/5)) − 5 := (55 + 5/5)/((5 + 5)/5) := 5 + ((55 + 5/5)/((5 + 5)/5)) := 6 × (6 × (6 × 6 + 6) + 6) + (66 − 6)/6 := ((66 × (66 + 66)) + 666)/6 := (6/6 + 6) × ((6 × 6 × 6 + (6 + 6)/6) + 6) 5 − (22 + 2/2) := ((7 + 7)/7) × (((7 + 7)/7) + 777) := 7 + (((7 + 7)/7) × (777 + 7/7)) := 7 × (7 × (7 + 7 + 7) + 77) := ((8 + 8)/8) × (8 × (88 + 8) + (88/8)) := 8 + ((8 × 8 × (8 + 8 + 8) + (88/8)) + 8) := 8 + ((8 + 8 + 8) × (8/8 + 8 × 8)) := 9/9 + (9 × 9 × (9 + 9) + 99) := ((9 + 9 + 9)/9) × ((((9 + 9)/9)9 ) + 9) := 99 + (9 × 9 × (9 + 9) + (99/9)) Ï 1559 := ((1 + 1 + 11) × (111+1 − 1)) − 1 Ï 1564 := (1 + 1)11 − ((11 + 11)1+1 ) Ï 1569 := 1 + ((1 + 111) × (1 + (1 + 1 + 11))) := 2/2 + (2 × ((22 + 2 + 2 + 2)2 )) := (2 × (222 + 2)) + 2222/2 := 2 := 3 + ((((33/3)3 ) + (3 + 3)3 ) + 3 × 3) := 33 + ((3 × ((3 − 3/3)3×3 )) + 3/3) := 33 + (3 × ((3 − 3/3)3×3 )) := 4 + (4444/4 + 444) := 4 + ((44 + 4) × ((4 + 4)/4 + 4)) := 4/4 + ((4 + 4) × ((4 × (44 + 4)) + 4)) := (5 × (55 − 5)/(5 + 5)) − 5/5 := 6 × (6 × (6 × 6 + 6) + 6) + 66/6 := 7 + (((7 + 7)/7) × (777 − 7/7)) := 8 × (8 × 8 − 8) + 8888/8 := 9 + ((9 × (9 × (9 + 9) + 9)) + (99/9)) Ï 1560 := (1 + 1 + 11) × (111+1 − 1) 2 22/2 − 22 2 := (5 × (55 + 5)/(5 + 5)) − 5/5 := 5 + ((5 × (55 + 5)/(5 + 5)) − 5/5) := (6 − ((6 + 6)/6)) × ((6 × 66 − 6) + 6/6) := 6 + (((66 × (66 + 66)) + 666)/6) := ((((7 + 7) × 777) − 7) + 77)/7 := (((7 + 7) × (777 + 7)) + 7)/7 := (8/8 + 8 + 8) × ((8/((8 + 8)/8)) + 88) := 8 + (((8 + 8 + 8) × (8/8 + 8 × 8)) + 8/8) := ((9 − 9/9) + 9) × ((99/9) + 9 × 9) := 9 × 9 × (9 + 9) + 999/9 Ï 1565 := 11 + (111 × (1 + (1 + 1 + 11))) Ï 1570 := 1 + (1 + ((1 + 111) × (1 + (1 + 1 + 11)))) := 2/2 + (222/2 − 222 ) := 2 + (2 × ((22 + 2 + 2 + 2)2 )) := ((33/3)3 ) + (3 × (3 × 33 − 3)) := 33 + ((3 × (3 + 3) + 3)3 − 3)/(3 + 3) := 4 + (((4 + 4)/4 + 4) × ((4/4 + 44 ) + 4)) := 5 × (55 − 5)/(5 + 5) := 4 + (((44 + 4) × ((4 + 4)/4 + 4)) + 4/4) := 5 × (55 + 5)/(5 + 5) := 5 + (5 × (55 + 5)/(5 + 5)) := 6 + 6 × (6 × (6 × 6 + 6) + 6) + 6 := 6 + 6 × (6 × (6 × 6 + 6) + 6) + 66/6 := ((6 + 6)/6) × (66 × (6 + 6) − (6/6 + 6)) := 7 + ((((7 + 7) × 777) − 7)/7) := (((7 + 7) × 777) + 77)/7 := ((7 + 7)/7) × ((777 + 7/7) + 7) := (8 + 8 + 8) × (8/8 + 8 × 8) := ((88/8 + 8) × (88 − 8/8)) − 88 := 8 + ((888/8 × ((8 − (8 + 8)/8) + 8)) + 8) := 9 × 9 × (9 + 9) + (999/9 − 9) := 9 + ((9 × 9 × (9 + 9) − 9/9) + 99) := 9 × 9 × (9 + 9) + ((999 + 9)/9) := 2 × (2 × (22 − 2) − 22 + 2) := (33 − 3/3) × (33 + 33) := (44 + 4) × ((4 + 4)/4 + 4) Ï 1561 := 1 + ((1 + 1 + 11) × (111+1 − 1)) 22/2 2 Ï 1566 := 1 + (11 + (111 × (1 + (1 + 1 + 11)))) Ï 1571 := (11 × (11 × (1 + 1 + 11))) − 1 − 1 := 2 + (222/2 − 222 ) := ((22/2 + 2) × (22/2)2 ) − 2 := 3/3 + ((33 − 3/3) × (33 + 33)) := 3 × ((3 + 3) × (3 × 33 + 3 + 3)) := 3 × 3 × 33 + (33/3)3 − 3 := 4/4 + ((44 + 4) × ((4 + 4)/4 + 4)) := ((4 + 4)/4 + 4) × ((4/4 + 44 ) + 4) := 4 + (((4 + 4) × ((4 × (44 + 4)) + 4)) − 4/4) := 2 − ((22 + 2/2) + 2) := 5/5 + (5 × (5 − 5)/(5 + 5)) := 5/5 + (5 × (55 + 5)/(5 + 5)) := 5 + ((5 × (55 + 5)/(5 + 5)) + 5/5) := (6/6 + 6) × (6 × 6 × 6 + 6/6 + 6) := 6 + 6 × (6 × (6 × 6 + 6) + 6) + 6 + 6 := (((6 + 6) × (66 × (6 + 6) − 6)) − 6)/6 := 7 + (777 + 777) := ((7 + 7)/7) × ((777 − 7/7) + 7) := 7 + (((((7 + 7) × 777) − 7) + 77)/7) := 8/8 + ((8 + 8 + 8) × (8/8 + 8 × 8)) := (8/8 − 88) × ((8 − 88)/8 − 8) := 88/8 + ((8 + 8 + 8) × (8/8 + 8 × 8)) := 9 × 9 × (9 + 9) + (((999 + 9)/9) − 9) := 9 + (9 × 9 × (9 + 9) + 99) := 9 × 9 × (9 + 9) + ((999 + 9 + 9)/9) 5 Ï 1562 := 11 × ((1 + 11)1+1 − (1 + 1)) Ï 1567 := ((1 + 111) × (1 + (1 + 1 + 11))) − 1 Ï 1572 := (1 + 11) × ((11 × (1 + 11)) − 1) := (2 × ((22 + 2 + 2 + 2)2 )) − 2/2 := 2 × (((22 + 2 + 2 + 2)2 ) + 2) := 33 + ((3 × ((3 − 3/3)3×3 )) − 3/3) := 3/3 + (3 × ((3 + 3) × (3 × 33 + 3 + 3))) := 3 + ((3 × ((3 − 3/3)3×3 )) + 33) := 4 × 44 + (44 × (44 − 4)/(4 + 4)) := ((4 + 4) × ((4 × (44 + 4)) + 4)) − 4/4 := 4 + ((4 + 4) × ((4 × (44 + 4)) + 4)) := 2 22/2 2 − (22 + 2) := (5 − 5/5)/((5 + 5)/5) := 5 + ((5 − 5/5)/((5 + 5)/5)) := 5 + (((55 − 5/5)/((5 + 5)/5)) + 5) := 66/6 × ((6 + 6) × (6 + 6) − ((6 + 6)/6)) := 6 + ((6/6 + 6) × (6 × 6 × 6 + 6/6 + 6)) := 66 + (6 × 6 × (6 × 6 + 6) − 6) := 7 + ((((7 + 7) × 777) + 7)/7) := (((7 + 7) × (777 + 7)) − 7)/7 := 7 + ((((7 + 7) × 777) + 77)/7) := 8 + (888/8 × ((8 − (8 + 8)/8) + 8)) := 8 + (8888/8 + 8 × (8 × 8 − 8)) := (((8 × 8 − 8)(8+8)/8 ) + 8)/((8 + 8)/8) := 99/9 × (9 × (9 + 9) − (99/9 + 9)) := 9 + ((9 × 9 × (9 + 9) + 99) + 9/9) := 9 + (((9 + 9 + 9)/9) × ((((9 + 9)/9)9 ) + 9)) 5 5 114 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1573 := 11 × (11 × (1 + 1 + 11)) Ï 1578 := 11 + (((1 + 111) × (1 + (1 + 1 + 11))) − 1) Ï 1583 := (11 × (1 + 11)1+1 ) − 1 := (22/2 + 2) × (22/2)2 := (2 × (22 − 2))2 − 22 := (2 × (22 × (2 + 2 + 2)2 )) − 2/2 := ((33/3)3 ) + ((33+3 − 3)/3) := 33 + (3 × (((3 − 3/3)3×3 ) + 3)) := ((33/3)3 ) + (3 × (3 × 33 + 3)) := (44 × (4 × (4 + 4) + 4)) − 44/4 := ((4 + 4)/4 + 4) × (((44 − 4/4) + 4) + 4) := (44 × (4 × (4 + 4) + 4)) − 4/4 := 5 + (((55 + 5/5)/((5 + 5)/5)) + 5) := 555 + ((5 − 5/5)5 − 5/5) := 5 + (((5 − 5/5)5 − 5/5) + 555) := 66/6 × ((6 + 6) × (6 + 6) − 6/6) := 66 + 6 × 6 × (6 × 6 + 6) := (66 × ((6 + 6 + 6) + 6)) − 6/6 := (7 − 7/7 + 7) × (((7 + 7)/7) − 7) := (7 − 7/7) × ((((7 + 7)/7)7+7/7 ) + 7) := (((7 + 7) × (777 + 7 + 7)) + 7)/7 := 888 + (8 × 88 − (88/8 + 8)) := 888 + ((((8 + 8)/8) − (8 + 8)) + 8 × 88) := 888 + (8 × 88 − (8/8 + 8)) := 9 + (((9 − 9/9) + 9) × ((99/9) + 9 × 9)) := 9 + (9 × 9 × (9 + 9) + 999/9) := ((9 + 9) × (99 − (99/9))) − 9/9 7 Ï 1574 := 1 + (11 × (11 × (1 + 1 + 11))) Ï 1579 := 11 + ((1 + 111) × (1 + (1 + 1 + 11))) Ï 1584 := 11 × (1 + 11)1+1 := 2 + (2 × (((22 + 2 + 2 + 2)2 ) + 2)) := 2/2 + ((2 × (22 − 2))2 − 22) := 2 × (22 × (2 + 2 + 2)2 ) := 3 × 3 × 33 + ((33/3)3 ) := (((3 + 3) × ((33 × (33 − 3)) − 3)) + 3)/3 := 33 × (3 × 33 − 33) := 44 + (((4 + 4)/4 + 4) × (44 − 4/4)) := (44 × (4 × (4 + 4) + 4)) − (4/4 + 4) := 44 × (4 × (4 + 4) + 4) := 555 + ((5 − 5/5)5 − 5) := 555 + (5 − 5/5)5 := 5 + ((5 − 5/5)5 + 555) := ((6 + 6)/6) × ((66 × (6 + 6) − 6) + 6/6) := 66 + (6 × 6 × (6 × 6 + 6) + 6/6) := 66 × ((6 + 6 + 6) + 6) := 7 + ((((7 + 7) × (777 + 7)) − 7)/7) := (((7 + 7) × (777 + 7)) + 77)/7 := (77/7 + 7) × (77/7 + 77) := 8 + ((8/8 − 88) × ((8 − 88)/8 − 8)) := 8 + (((8 + 8 + 8) × (8/8 + 8 × 8)) + (88/8)) := 88 × ((((8 + 8)/8) + 8) + 8) := 9 + (((9 × 9 × (9 + 9) − 9/9) + 99) + 9) := 9 + (((999 + 9)/9) + 9 × 9 × (9 + 9)) := (9 + 9) × (99 − (99/9)) Ï 1585 := 1 + (11 × (1 + 11)1+1 ) Ï 1575 := 1 + (1 + (11 × (11 × (1 + 1 + 11)))) Ï 1580 := (11 − 1) × ((1 + 1 + 11)1+1 − 11) := 2 + ((22/2 + 2) × (22/2)2 ) := 2 + ((2 × (22 − 2))2 − 22) := 2/2 + (2 × (22 × (2 + 2 + 2)2 )) := 3 × (((3 + 3) × (3 × 33 + 3 + 3)) + 3) := 33 + (((33/3)3 ) + (3 + 3)3 ) := 3/3 + (33 × (3 × 33 − 33)) := ((4/4 + 4) + 4) × (4 × 44 − 4/4) := (44 × (4 × (4 + 4) + 4)) − 4 := 4/4 + (44 × (4 × (4 + 4) + 4)) := 5 × ((5 × 5 + 55 )/(5 + 5)) := 5 + (5 × ((5 × 5 + 55 )/(5 + 5))) := 5 × ((55 − 5)/(5 + 5) + 5) := (6 × 6 − 6/6) × (666/6 − 66) := (6 − ((6 + 6)/6)) × (6 × 66 − 6/6) := 6/6 + (66 × ((6 + 6 + 6) + 6)) := 7 + (7 × (7 × (7 + 7 + 7) + 77)) := 7 + ((7 − 7/7 + 7) × (((7 + 7)/7)7 − 7)) := 7 × 7 + ((77 + 7)/7 × ((7 + 7)/7)7 ) := (8/8 + 8) × (888/8 + 8 × 8) := 888 + (8 × 88 − ((88 + 8)/8)) := 8/8 + ((888 − 8) + 8 × 88) := 9 + ((9 × 9 × (9 + 9) + 99) + 9) := (99/9 + 9) × (9 × 9 − ((9 + 9)/9)) := 9/9 + ((9 + 9) × (99 − (99/9))) Ï 1576 := 1 + (1 + (1 + (11 × (11 × (1 + 1 + 11))))) Ï 1581 := (11 × (1 + 11)1+1 ) − 1 − 1 − 1 Ï 1586 := 1 + (1 + (11 × (1 + 11)1+1 )) := (2 × (22 − 2))2 − (22 + 2) := (2/2 + 2) × (((22 + 2/2)2 ) − 2) := 2 + (2 × (22 × (2 + 2 + 2)2 )) := 3 + (((33+3 − 3)/3) + ((33/3)3 )) := (33 × (3 × 33 − 33)) − 3 := (33 − 3/3) × (((3/3 + 3)3 ) − 3) := (44 × (4 × (4 + 4) + 4)) − 4 − 4 := 4/4 + ((44 × (4 × (4 + 4) + 4)) − 4) := (4 + 4)/4 + (44 × (4 × (4 + 4) + 4)) := 5/5 + (5 × ((5 × 5 + 55 )/(5 + 5))) := 5 + ((5 × ((5 × 5 + 55 )/(5 + 5))) + 5/5) := 5/5 + (5 × ((55 − 5)/(5 + 5) + 5)) := ((6 + 6)/6)6 + 6 × 6 × (6 × 6 + 6) := (66 × ((6 + 6 + 6) + 6)) − 6 × 6/(6 + 6) := (6 + 6)/6 + (66 × ((6 + 6 + 6) + 6)) := 7 + ((((7 + 7) × (777 + 7)) + 7)/7) := (((7 + 7) × (777 + 7 + 7)) − 7)/7 := (7 × 7 × 77) − (((7 + 7 + 7)/7)7 ) := 888 + (8 × 88 − (8 + 8)) := 888 + (8 × 88 − (88/8)) := 888 + ((((8 + 8)/8) − 8) + 8 × 88) := ((9 − 9/9) + 9) × (((99 + 9)/9) + 9 × 9) := 9 + ((9/9 + 9 + 9) × (((9 + 9)/9) + 9 × 9)) := (9 − 9/9) × ((99 − 9/9) + 99) Ï 1577 := 1 + (1 + (1 + (1 + (11 × (11 × (1 + 1 + 11)))))) Ï 1582 := (11 × (1 + 11)1+1 ) − 1 − 1 Ï 1587 := 1 + (1 + (1 + (11 × (1 + 11)1+1 ))) := (2 × (22 − 2))2 − (22 + 2/2) := (2 × (22 × (2 + 2 + 2)2 )) − 2 := (2/2 + 2) × ((22 + 2/2)2 ) := 3 + (3 × 3 × 33 + ((33/3)3 )) := 3/3 + ((33 × (3 × 33 − 33)) − 3) := 3 + (33 × (3 × 33 − 33)) := 4 + ((44 × (4 × (4 + 4) + 4)) − 44/4) := (44 × (4 × (4 + 4) + 4)) − (4 + 4)/4 := 44 + ((44/4)4−4/4 ) := 5 + ((((55 − 5/5)/((5 + 5)/5)) + 5) + 5) := 5 × 5 + ((55 − (55/5))/((5 + 5)/5)) := 5 × 5 + ((55 − 5/5)/((5 + 5)/5)) := 66 + (6 × 6 × (6 × 6 + 6) − 6/6) := ((6 + 6)/6) × (66 × (6 + 6) − 6/6) := 666/6 + (6 × (6 × (6 × 6 + 6) − 6)) 7 := (7 × (7 × (7 × 7 − (7 + 7)))) − ((7 + 7)/7)7 := 7 + (((7 + 7)/7) × ((777 + 7/7) + 7)) := 7 × (((7 + 7)/7) + 7 × (7 + 7)) := 8/8 + ((888 − (8 + 8)) + 8 × 88) := 888 + ((8 − 88)/8 + 8 × 88) := 888 + ((88/8 − (8 + 8)) + 8 × 88) := (9/9 + 9 + 9) × (((9 + 9)/9) + 9 × 9) := ((9 + 9)/9) × (9 × 99 − (9/9 + 99)) := 9 + ((9 × 9 × (9 + 9) + 999/9) + 9) 115 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1588 := 1 + (1 + (1 + (1 + (11 × (1 + 11)1+1 )))) Ï 1593 := (11 × (1 + (1 + 11)1+1 )) − 1 − 1 Ï 1598 := 1 + (1 + (1 + (11 × (1 + (1 + 11)1+1 )))) := 2 × ((22 × (2 + 2 + 2)2 ) + 2) := 2/2 + (2 × (2 × ((22 − 2)2 − 2))) := (2 × (22 − 2))2 − 2 := 3 + ((33 × (3 × 33 − 33)) + 3/3) := 3 × (33 × (3 + 3) + 333) := 33 × 33 + (((3 − 3/3)3×3 ) − 3) := 4 + (44 × (4 × (4 + 4) + 4)) := ((4/4 + 4) + 4) × (4 × 44 + 4/4) := (4 × (444 − 44)) − (4 + 4)/4 := 5 × 5 + ((55 + 5/5)/((5 + 5)/5)) := (6 − ((6 + 6)/6)) × (6 × 66 + 6/6) 5 := (5 × ((5 + 5) × ((5 + 5)/5)5 )) − (5 + 5)/5 := 5 + (((5 + 5/5)/((5 + 5)/5)) + 5 × 5) 6 := (6 × (6 + 6) × (6 + 6)) + ((6 × 6/(6 + 6)) ) 7 := ((6 + 6)/6) × ((66 × (6 + 6) + 6/6) + 6) := 7 + ((((7 + 7) × (777 + 7 + 7)) − 7)/7) := 7 + ((7 × 7 × 77) − (((7 + 7 + 7)/7) )) := ((7 + 7)/7) + ((7 + 7 + 7) × (77 − 7/7)) := 888 + (8 × 88 − (8/((8 + 8)/8))) := 8/8 + (888 + 8 × 88) := 8 × (8 × (8 + 8 + 8) + 8) − (8 + 8)/8 := 9 + ((((999 + 9)/9) + 9 × 9 × (9 + 9)) + 9) := 9 + ((9 + 9) × (99 − (99/9))) := ((9 + 9)/9) × (9 × (9 × 9 + 9) − (99/9)) Ï 1589 := (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 ) − 11 Ï 1594 := (11 × (1 + (1 + 11)1+1 )) − 1 Ï 1599 := (1 + 1 + 11) × (1 + (1 + 111+1 )) := (2 × (22 − 2))2 − 22/2 := 2 + (2 × (2 × ((22 − 2)2 − 2))) := (2 × (22 − 2))2 − 2/2 := 3 + ((33 − 3/3) × (((3/3 + 3)3 ) − 3)) := 3/3 + (3 × (33 × (3 + 3) + 333)) := ((3 + 3) × ((3 × (3 × (33 + 3))) − 3)) − 3 := 4 + ((44 × (4 × (4 + 4) + 4)) + 4/4) := (44 − 4)/4 + (44 × (4 × (4 + 4) + 4)) := (4 × (444 − 44)) − 4/4 := 5 + (((5 − 5/5) + 555) + 5) := 55 /5 + ((5 − 5/5)5 − 55) := (5 × ((5 + 5) × ((5 + 5)/5)5 )) − 5/5 := 6 + ((66 × ((6 + 6 + 6) + 6)) − 6/6) := 6 + ((6 − ((6 + 6)/6)) × (6 × 66 + 6/6)) := (6/6 + 6 + 6) × ((666/6 + 6) + 6) := ((7 + 7 + 7) × (77 − 7/7)) − 7 := 7 × (77 − 7) + (7777/7 − 7) := (77 × (7 + 7 + 7)) − (77/7 + 7) := 8 × (8 × (8 + 8 + 8) + 8) − 88/8 := 888 + ((8 + 8)/8 + 8 × 88) := 8 × (8 × (8 + 8 + 8) + 8) − 8/8 := 9 + ((99/9 + 9) × (9 × 9 − ((9 + 9)/9))) := 9 + (((9 + 9) × (99 − (99/9))) + 9/9) := (9 × (99 + 9 × 9)) − (((99 + 9)/9) + 9) 5 Ï 1590 := (1 + 1 + 1) × (1 + (1 + 11 + 11)1+1 ) Ï 1595 := 11 × (1 + (1 + 11)1+1 ) Ï 1600 := ((1 + 1) × ((1 + 1) × (11 − 1)))1+1 := (2 × (22 − 2))2 := (2 × (2 × ((22 − 2)2 − 2))) − 2 := 222 + 2222/2 := 3 + ((33 × (3 × 33 − 33)) + 3) := 33/3 + (33 × (3 × 33 − 33)) := ((3/3 + 3)3 ) × ((3/3 − 3) + 33 ) := 4 + ((44 × (4 × (4 + 4) + 4)) + (4 + 4)/4) := 44/4 + (44 × (4 × (4 + 4) + 4)) := 4 × (444 − 44) := 5 × ((55 + 5)/(5 + 5) + 5) := 55 × (5 × 5 − 5/5 + 5) := 5 × ((5 + 5) × ((5 + 5)/5)5 ) := 6 + (66 × ((6 + 6 + 6) + 6)) := 66/6 + (66 × ((6 + 6 + 6) + 6)) := ((6 + 6)/6)6 × (6 × 6 − 66/6) := 7 + ((((7 + 7) × (777 + 7 + 7)) + 7)/7) := ((7 + 7 + 7) × (77 − 7/7)) − 7/7 := (7 × 7 − ((7 + 7)/7 + 7))(7+7)/7 := 888 + (8 × 88 − ((8 + 8)/8)) := 888 + ((8 × 88 − 8) + (88/8)) := 8 × (8 × (8 + 8 + 8) + 8) := (9/9 + 9) × (9 × (9 + 9) − ((9 + 9 + 9)/9)) := 99/9 + ((9 + 9) × (99 − (99/9))) := (99/9 + 9) × (9 × 9 − 9/9) Ï 1591 := 1 + ((1 + 1 + 1) × (1 + (1 + 11 + 11)1+1 )) 2 Ï 1596 := 1 + (11 × (1 + (1 + 11)1+1 )) Ï 1601 := 1 + (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 ) := 2 × ((2 × (22 − 2))2 − 2) := 2/2 + (2 × (22 − 2))2 := 3 + (3 × (33 × (3 + 3) + 333)) := 33 × 33 + ((3 − 3/3)3×3 ) := (4 × (444 − 44)) − 4 := 4/4 + (4 × (444 − 44)) := 5/5 + (5 × ((5 + 5)/(5 + 5) + 5)) := 5/5 + (55 × (5 × 5 − 5/5 + 5)) := 5/5 + (5 × ((5 + 5) × ((5 + 5)/5)5 )) := 6 + ((66 × ((6 + 6 + 6) + 6)) + 6/6) := 6 + ((66 × ((6 + 6 + 6) + 6)) + 6) := 6 + ((66 × ((6 + 6 + 6) + 6)) + (66/6)) := 7 + ((77/7 + 7) × (77/7 + 77)) := (7 + 7 + 7) × (77 − 7/7) := 7 × (77 − 7) + 7777/7 := 888 + (8 × 88 − 8/8) := 888 + ((8/((8 + 8)/8)) + 8 × 88) := 8/8 + 8 × (8 × (8 + 8 + 8) + 8) := ((99/9 + 9) × (9 × 9 − 9/9)) − 9 := (9/9 + 9 + 9) × (((9 + 9 + 9)/9) + 9 × 9) := (((9 + 9)/9)9 ) + (99 × (99/9)) := 2 + ((2 × (22 − 2)) − 22/2) 3 := (((3 + 3) × ((33 × (3 − 3)) + 3)) + 3)/3 := 4 + (((44/4) 4−4/4 4 )+4 ) 5 Ï 1592 := (11 × (1 + (1 + 11)1+1 )) − 1 − 1 − 1 Ï 1597 := 1 + (1 + (11 × (1 + (1 + 11)1+1 ))) Ï 1602 := 1 + (1 + (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 )) := 2 × (2 × ((22 − 2)2 − 2)) := (2 × (22 − 2))2 − 2/2 − 2 := 2 + (2 × (22 − 2))2 := ((33/3)3 ) + (3 × (3 × 33 + 3 + 3)) := (3 × (3 + 3) × 33 ) + 3333/3 := (3 + 3) × ((3 × (3 × (33 + 3))) − 3) := 4 + ((44 × (4 × (4 + 4) + 4)) + 4) := 4/4 + ((4 × (444 − 44)) − 4) := (4 + 4)/4 + (4 × (444 − 44)) := 5 + (((5 − 5/5)/((5 + 5)/5)) + 5 × 5) := (5 + 5)/5 + (55 × (5 × 5 − 5/5 + 5)) := (5 + 5)/5 + (5 × ((5 + 5) × ((5 + 5)/5)5 )) := 6 + ((66 × ((6 + 6 + 6) + 6)) + ((6 + 6)/6)) 5 := (((6 + 6) × (66 × (6 + 6) + 6)) + 6)/6 := 6 + (((66 × ((6 + 6 + 6) + 6)) + 6) + 6) := 7 × 7 + ((((7 + 7) × 777) − 77)/7) := 7/7 + ((7 + 7 + 7) × (77 − 7/7)) := 7 × 7 + ((((7 + 7) × 777) − 7)/7) := 888 + 8 × 88 := 8 + (8 × (8 × (8 + 8 + 8) + 8) − (88/8)) := (8 + 8)/8 + 8 × (8 × (8 + 8 + 8) + 8) := 9 × 9 + ((((9 + 9)/9)9 ) + 999) := ((9 + 9) × (9 + 9 + 9)) + 9999/9 := (9 + 9) × ((9 × 9 − 9/9) + 9) 116 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1603 := 1 + (1 + (1 + (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 ))) Ï 1608 := (1 + 11) × (1 + (1 + (11 × (1 + 11)))) Ï 1613 := 1 + ((1 + 1 + 11) × (1 + (1 + (1 + 111+1 )))) := 2 + ((2 × (22 − 2))2 + 2/2) := 2 × (2 × ((22 − 2)2 + 2)) := 2 + ((2 × (22 − 2))2 + 22/2) := (3 × 3 + 3)3 − ((3 − 3/3 + 3)3 ) := (33 − 3) × (((3/3 + 3)3 ) + 3) := 3 + ((((3 × (3 + 3))3 − 3)/3) − 333) := 4 + ((4 × (444 − 44)) − 4/4) := 4 + ((4 × (444 − 44)) + 4) := 4/4 + ((4 × ((444 − 44) + 4)) − 4) := 5 + ((5 × ((5 + 5) × ((5 + 5)/5)5 )) − ((5 + 5)/5)) := 55 + (((5/5 + 5)5 − (55/5))/5) := 55 + (((55 + 5/5)/((5 + 5)/5)) − 5) := 6 + ((((6 + 6) × (66 × (6 + 6) + 6)) + 6)/6) := (6 − ((6 + 6)/6)) × (6 × 66 + 6) := 66 + 6 × (6 × (6 × 6 + 6) + 6) − 6/6 := (77 × (7 + 7 + 7)) − (7 + 7) := (77 × (7 + 7 + 7)) − ((7 + 7)/7 + 7) := 7 + ((77 × (7 + 7 + 7)) − (77/7)) := 888 + (88/8 + 8 × 88) := 8 + 8 × (8 × (8 + 8 + 8) + 8) := 88 + (8 × 8 × (8 + 8 + 8) − (88/8)) := 9/9 + ((9 + 9) × ((9 × 9 − 9/9) + 9)) := (9 × (99 + 9 × 9)) − (99 + 9)/9 := (9 + 9)/9 + ((9 × (99 + 9 × 9)) − 9) Ï 1604 := (1 + 1)11 − ((1 + 1) × (1 + 1) × 111) Ï 1609 := 1 + ((1 + 11) × (1 + (1 + (11 × (1 + 11))))) Ï 1614 := ((1 + 11)1+1+1 ) − (1 + 1 + 1 + 111) := 2 + ((2 × (22 − 2))2 + 2) := 2/2 + (2 × (2 × ((22 − 2)2 + 2))) := 2 + (2 × ((2 × ((22 − 2)2 + 2)) + 2)) := 3 + ((3 × (3 × (33 + 3))) + ((33/3)3 )) := (33 × (33 + 33)) − 33/3 := (33 × (33 + 33)) − (3 + 3) := 4 + (4 × (444 − 44)) := 4 + (((4 × (444 − 44)) + 4/4) + 4) := (4 × ((444 − 44) + 4)) − (4 + 4)/4 5 5 := 5 × 5 + ((5 − 5/5) + 555) := 5 + (((5 − 5/5) + 555) + 5 × 5) := (5/5 + 5) × (5 × 55 − (5/5 + 5)) := (6 − ((6 + 6)/6)) × ((6 × 66 − 6/6) + 6) := 6/6 + ((6 − ((6 + 6)/6)) × (6 × 66 + 6)) := 66 + 6 × (6 × (6 × 6 + 6) + 6) := 7/7 + ((77 × (7 + 7 + 7)) − (7 + 7)) := (77 × (7 + 7 + 7)) − (7/7 + 7) := ((7 + 7 + 7)/7) × (7 × 77 − 7/7) := 888 + (((88 + 8)/8) + 8 × 88) := 8 + (8 × (8 × (8 + 8 + 8) + 8) + 8/8) := 8 × 8 × 8 + ((8888 − 8)/8 − 8) := (9 + 9)/9 + ((9 + 9) × ((9 × 9 − 9/9) + 9)) := (9 × (99 + 9 × 9)) − 99/9 := (((9 + 9)/9)9 ) + (9999/9 − 9) Ï 1605 := (11 × (1 + (1 + (1 + 11)1+1 ))) − 1 Ï 1610 := 1 + (1 + ((1 + 11) × (1 + (1 + (11 × (1 + 11)))))) Ï 1615 := ((1 + 11)1+1+1 ) − (1 + 1 + 111) := 2 + (((2 × (22 − 2))2 + 2/2) + 2) := 2 + (2 × (2 × ((22 − 2)2 + 2))) := 2 + (((2 × (22 − 2))2 + 22/2) + 2) := 3333 − (3 × 3 + 3)3 := (((3 × (3 + 3))3 − 3)/3) − 333 := 3 + ((((3 × (3 + 3))3 + 3)/3) − 333) := 4 + ((4 × (444 − 44)) + 4/4) := (4/4 + 4) × (((44 + 4 + 4)/4) + 44 ) := (4 × ((444 − 44) + 4)) − 4/4 5 := 5 × (((5 − 5)/(5 + 5) + 5) + 5) := 5 × (((55 + 5)/(5 + 5) + 5) + 5) := 6 + ((6/6 + 6 + 6) × ((666/6 + 6) + 6)) := (6 × 6 − 6/6) × (((66 − 6)/6) + 6 × 6) := 66 + 6 × (6 × (6 × 6 + 6) + 6) + 6/6 := (77 × (7 + 7 + 7)) − (77 + 7)/7 := (77 × (7 + 7 + 7)) − 7 := (77 × (7 + 7 + 7)) − (7 + 7)/7 := (8 − 8/8 + 8) × ((88/8 + 88) + 8) := 8 + (8 × (8 × (8 + 8 + 8) + 8) + ((8 + 8)/8)) := 8 × 8 × 8 + (8888/8 − 8) := 9 + ((9/9 + 9 + 9) × (((9 + 9 + 9)/9) + 9 × 9)) := (9/9 + 9) × (9 × (9 + 9) − 9/9) := ((9 − 99)/(9 + 9)) + (9 × (99 + 9 × 9)) 5 := 5 + (5 × ((5 + 5) × ((5 + 5)/5) )) Ï 1606 := 11 × (1 + (1 + (1 + 11)1+1 )) Ï 1611 := 11 + (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 ) 2 Ï 1616 := ((1 + 11)1+1+1 ) − (1 + 111) := 22/2 + (2 × (22 − 2))2 := 2 × (2 × (((22 − 2)2 + 2) + 2)) := 3 + ((3 × 3 + 3) − ((3 − 3/3 + 3) )) := 3 × ((3 × (3 × (33 + 33))) − 3) := (3 × 3 + 3)3 − ((333 + 3)/3) := 4 + ((4 × (444 − 44)) + (4 + 4)/4) := 44/4 + (4 × (444 − 44)) := 4 × ((444 − 44) + 4) := 2 + (((2 × (22 − 2)) + 2) + 2) 3 3 5 := 5 + ((5 × ((5 + 5) × ((5 + 5)/5) )) + 5/5) := 555/5 + (5 × (5 × (55 + 5))) := 5 + ((5 × (5 × (55 + 5))) + 555/5) 6 := 6 + (((6 + 6)/6) × (6 × 6 − 66/6)) := (6 × (6 × 66 − 6)) − ((6 × 6/(6 + 6)) ) := (((6 + 6)/6)66/6 ) − (6 × (66 + 6)) := (77 × (7 + 7 + 7)) − 77/7 := 7/7 + ((77 × (7 + 7 + 7)) − 7) := (77 × (7 + 7 + 7)) − 7/7 := 8 + (8 × (8 × (8 + 8 + 8) + 8) − ((8 + 8)/8)) := 88/8 + 8 × (8 × (8 + 8 + 8) + 8) := 8 + (8 × (8 × (8 + 8 + 8) + 8) + 8) := ((9/9 − 9) + 9 × 9) × ((99 + 99)/9) := (9 × (99 + 9 × 9)) − 9 := ((9 + 9)/9) × (9 × (9 × 9 + 9) − ((9 + 9)/9)) 6 Ï 1607 := 1 + (11 × (1 + (1 + (1 + 11)1+1 ))) Ï 1612 := (1 + 1 + 11) × (1 + (1 + (1 + 111+1 ))) Ï 1617 := ((1 + 11)1+1+1 ) − 111 := 222/2 − ((22 − 2/2)2 ) := 2 × ((2 × ((22 − 2)2 + 2)) + 2) := 22 + ((2222/2) + 222 ) := 33 + (3 × 3 × 33 + ((33/3)3 )) := (((3 × (3 + 3))3 + 3)/3) − 333 := (33 × (33 + 33)) − 3 := (4 × ((444 − 44) + 4)) − 4 := 4/4 + (4 × ((444 − 44) + 4)) := 4 + (((4 × (444 − 44)) − 4/4) + 4) 5 := 5 + ((5 × ((5 + 5) × ((5 + 5)/5) )) + ((5 + 5)/5)) := 55 + ((5 − (55/5))/((5 + 5)/5)) := 55 + ((55 − 5/5)/((5 + 5)/5)) := ((6 − ((6 + 6)/6)) × (6 × 66 + 6)) − 6/6 := ((6 + 6)/6)6 + 6 × (6 × (6 × 6 + 6) + 6) := 66/6 × (666/6 + 6 × 6) := ((7 − 77)/7) + (77 × (7 + 7 + 7)) := ((7 + 7)/7) + ((77 × (7 + 7 + 7)) − 7) := 77 × (7 + 7 + 7) := 8 + (8 × (8 × (8 + 8 + 8) + 8) − 8/8) := 8 × 8 × 8 + ((8888 − 88)/8) := 8 + ((8 × (8 × (8 + 8 + 8) + 8) + 8/8) + 8) := (9 × (99 + 9 × 9)) − ((99 + 9 + 9)/9) := 9/9 + ((9 × (99 + 9 × 9)) − 9) := (9 × (99 + 9 × 9)) − (9 + 9 + 9)/9 5 117 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1618 := 1 + (((1 + 11)1+1+1 ) − 111) Ï 1623 := 1111 + (1 + 1)11−1−1 Ï 1628 := 11 + (((1 + 11)1+1+1 ) − 111) := 2 + ((2 × (22 − 2))2 + 22+2 ) := 22 + ((2 × (22 − 2))2 + 2/2) := 22 × (2 × (2 + 2 + 2)2 + 2) := 3/3 + ((33 × (33 + 33)) − 3) := 3 + (33 × (33 + 33)) := ((33/3)3 ) + 3 × 3 × 33 := (4 + 4)/4 + (4 × ((444 − 44) + 4)) := 44 + (4444/4 + 44 ) := 44 + (44 × (4 × (4 + 4) + 4)) := 55 + ((55 + 5/5)/((5 + 5)/5)) := (5 × (5 × (55 + 5 + 5))) − (5 + 5)/5 := 5 + ((5 × (5 × (55 + 5 + 5))) − ((5 + 5)/5)) := 6 × (666 − 6 × 66) − (6 + 6)/6 := 666/6 + 6 × 6 × (6 × 6 + 6) := 66/6 × ((666 + 6)/6 + 6 × 6) := 7/7 + (77 × (7 + 7 + 7)) := 7 + ((77 × (7 + 7 + 7)) − 7/7) := 77/7 + (77 × (7 + 7 + 7)) := 8 + ((8 × (8 × (8 + 8 + 8) + 8) + ((8 + 8)/8)) + 8) := 8 × 8 × 8 + 8888/8 := 88/8 × (888/(8 − (8 + 8)/8)) := (9 × (99 + 9 × 9)) − (9 + 9)/9 := (((9 + 9)/9)9 ) + 9999/9 := 9 + ((9 × (99 + 9 × 9)) − 9/9) Ï 1619 := 1 + (1 + (((1 + 11)1+1+1 ) − 111)) Ï 1624 := 1 + (1111 + (1 + 1)11−1−1 ) Ï 1629 := 1 + (11 + (((1 + 11)1+1+1 ) − 111)) := 22 + ((2 × (22 − 2))2 − (2/2 + 2)) := 2 + ((2 × (22 − 2))2 + 22) := 2 + ((((2 × 22) − 2/2)2 ) − 222) := (33 × (33 + 33)) − 3/3 := 3 + ((33 × (33 + 33)) + 3/3) := (3 × 3 + 3)3 − 3 × 33 := ((4 × 4 + 4) × (4 − 4/4)4 ) − 4/4 := 4 + ((4 × 4 + 4) × (4 − 4/4)4 ) := 4 × (44 − 4) + ((4/4 + 4)4 − 4) := (5 × (5 × (55 + 5 + 5))) − (5/5 + 5) := (5 × (5 × (55 + 5 + 5))) − 5/5 := 5 + ((5 × (5 × (55 + 5 + 5))) − 5/5) := 6 × (666 − 6 × 66) − 6/6 := 6 × 6 × (6 × 6 + 6) + (666 + 6)/6 := 6 + (6 × 6 × (6 × 6 + 6) + 666/6) := ((7 + 7)/7) + (77 × (7 + 7 + 7)) := 7 + (77 × (7 + 7 + 7)) := (77 + 7)/7 + (77 × (7 + 7 + 7)) := 8 + (8 × (8 × (8 + 8 + 8) + 8) + (88/8)) := 88 + 8 × 8 × (8 + 8 + 8) := (8/8 + 8) × (8 × (8 + 8 + 8) − (88/8)) := (9 × (99 + 9 × 9)) − 9/9 := ((9 + 9)/9) × (9 × (9 × 9 + 9) + ((9 + 9)/9)) := 9 + (9 × (99 + 9 × 9)) Ï 1620 := (1 + 1) × ((11 − 1) × (11 − 1 − 1)1+1 ) Ï 1625 := 1 + (1 + (1111 + (1 + 1)11−1−1 )) Ï 1630 := (11 − 1) × (1 + ((1 + 1) × (11 − 1 − 1)1+1 )) := 22 + ((2 × (22 − 2))2 − 2) := 2 + (((2 × (22 − 2))2 + 22) + 2/2) := 2 + (22 × (2 × (2 + 2 + 2)2 + 2)) := 33 × (33 + 33) := ((33/3)3 ) + (3 × 3 × 33 − 3) := 3/3 + ((3 × 3 + 3)3 − 3 × 33) := (4 × 4 + 4) × (4 − 4/4)4 := 4 + (((4 × 4 + 4) × (4 − 4/4)4 ) + 4/4) := 4 + (((4 + 4)/4 + 4) × ((44/4 + 44 ) + 4)) := (5/5 + 5) × (5 × 55 − 5) := 5 × (5 × (55 + 5 + 5)) := 5 + (5 × (5 × (55 + 5 + 5))) := 6 × (666 − 6 × 66) := (6/6 − 66) × ((66/6) − 6 × 6) := 6 + (6 × 6 × (6 × 6 + 6) + (666 + 6)/6) := ((7 + 7 + 7)/7) + (77 × (7 + 7 + 7)) := 7 + ((77 × (7 + 7 + 7)) + 7/7) := 7 + (((77 × (7 + 7 + 7)) − 7/7) + 7) := ((88 + 8)/8) × ((8 × (8 + 8) − 8/8) + 8) := 8/8 + (8 × 8 × (8 + 8 + 8) + 88) := 8 + ((8888 − 8)/8 + 8 × 8 × 8) := 9 × (99 + 9 × 9) := (9 × (99 + 9 × 9)) + ((9 × 9 + 9)/(9 + 9)) := 9 + ((9 × (99 + 9 × 9)) + 9/9) Ï 1621 := 1 + ((1 + 1) × ((11 − 1) × (11 − 1 − 1)1+1 )) Ï 1626 := 1 + (1 + (1 + (1111 + (1 + 1)11−1−1 ))) Ï 1631 := 1 + (11 − 1) × (1 + (1 + 1) × (11 − 1 − 1)1+1 ) := 22 + ((2 × (22 − 2))2 − 2/2) := 2 + (((2 × (22 − 2))2 + 22) + 2) := (((2 × 22) + 2)2 ) − (222 + 2/2) := 3/3 + (33 × (33 + 33)) := 3 + ((33 × (33 + 33)) + 3) := 3 + (((33/3)3 ) + 3 × 3 × 33) := 4/4 + ((4 × 4 + 4) × (4 − 4/4)4 ) := ((4 + 4)/4 + 4) × ((44/4 + 44 ) + 4) := 44 + (((44/4)4−4/4 ) + 44 ) := 5/5 + ((5/5 + 5) × (5 × 55 − 5)) := 5/5 + (5 × (5 × (55 + 5 + 5))) := 5 + ((5 × (5 × (55 + 5 + 5))) + 5/5) := 6/6 + 6 × (666 − 6 × 66) := 6 + 6 × (666 − 6 × 66) := 6 + ((6/6 − 66) × ((66/6) − 6 × 6)) := 77/7 + ((77 × (7 + 7 + 7)) − 7) := 7 + ((77 × (7 + 7 + 7)) + ((7 + 7)/7)) := 7 + ((77 × (7 + 7 + 7)) + 7) := 8 × 8 × 8 + ((8888 − (8 + 8))/8) := 88 + (8 × 8 × (8 + 8 + 8) + ((8 + 8)/8)) := 8 + (8888/8 + 8 × 8 × 8) := 9 + ((9 × (99 + 9 × 9)) − ((9 + 9 + 9)/9)) := 99/9 + (9 × (99 + 9 × 9)) := 9/9 + (9 × (99 + 9 × 9)) Ï 1622 := 1111 + ((1 + 1)11−1−1 − 1) Ï 1627 := 11 + (((1 + 11)1+1+1 ) − (1 + 111)) := 22 + (2 × (22 − 2))2 := (((2 × 22) − 2/2)2 ) − 222 := (((2 × 22) + 2)2 ) − 222 := 3 + ((33 × (33 + 33)) − 3/3) := 3 + (((33 × (33 + 33)) + 3/3) + 3) := 3 + ((3 × 3 + 3)3 − 3 × 33) := 44 + ((4444 − 4)/4 + 44 ) := 4 + ((4444/4 + 44 ) + 44 ) := 4 × (((444 − 44) + 4) + 4) := 5 + (((5 − 5/5)/((5 + 5)/5)) + 55) := (5 + 5)/5 + (5 × (5 × (55 + 5 + 5))) := ((5 + 5)/5)5 × ((5/5 − 5) + 55) := (6 + 6)/6 + 6 × (666 − 6 × 66) := 6 + (6 × (666 − 6 × 66) + 6/6) := 6 + (6 × (666 − 6 × 66) + 6) := 7 + ((77 × (7 + 7 + 7)) − ((7 + 7)/7)) := ((77 − 7)/7) + (77 × (7 + 7 + 7)) := 7 + (((77 × (7 + 7 + 7)) + 7/7) + 7) := 8 × 8 × 8 + (8888 − 8)/8 := ((88/8 + 8) × (8/8 + 88)) − 8 × 8 := (88 + 8) × (8/8 + 8 + 8) := (9 + 9)/9 + (9 × (99 + 9 × 9)) := 9 + ((9 × (99 + 9 × 9)) − ((9 + 9)/9)) := ((99 + 9)/9) + (9 × (99 + 9 × 9)) 5 118 Ï 1632 := (1 + 1) × ((1 + 1)11 − (11 × (1 + 111))) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1633 := (1 + 1 + 1 + 11)1+1+1 − 1111 Ï 1638 := ((1 + 1) × 111+1+1 ) − (1 + 1)11−1 Ï 1643 := ((1 + 1)1+11 ) − (11 × (1 + (1 + 1) × 111)) := 22 + ((2 × (22 − 2))2 + 22/2) := 2 + ((2 × ((22 + 2)2 )) + 222 ) := (2 × 22 − 2)2 − (22/2)2 := ((3 × (3 × 33 × 33)) − 3)/(3 + 3) := 3 × (((3 + 3)3 − 3) + 333) := (3 × 3 + 3)3 − ((3 × 33 + 3/3) + 3) := 44 + ((44 × (44 − 4)/(4 + 4)) − 4) := (((4 − 4/4)4+4 ) + 44/4)/4 := (5 − 5/5)5 + (((55 − 55)/5) − 5) := (5/5 + 5) × (5 × 55 − ((5 + 5)/5)) := (5 − 5/5)5 + ((55 − 5)/5 − 5) := ((66/6 + 6) + 6) × ((66 − 6/6) + 6) := (6/6 + 6) × ((6 × 6 × 6 + 6 + 6) + 6) := (66 × (6 × 6 − 66/6)) − 6/6 − 6 := 7 + (((77 × (7 + 7 + 7)) + ((7 + 7)/7)) + 7) := (7 + 7 + 7) × (7/7 + 77) := 7 × 77 + (7777/7 − 7) := 8/8 + ((88 + 8) × (8/8 + 8 + 8)) := (8/8 − 8 × 8) × ((8 − 88)/8 − (8 + 8)) := 88/8 + ((88 + 8) × (8/8 + 8 + 8)) := (9 × (99 + 9 × 9)) + ((99 + 9 + 9)/9) := 9 + ((9 × (99 + 9 × 9)) + 9) := (9 × (99 + 9 × 9)) + ((99 + 99 + 9)/9) 4 := 4 × (4 − 4) + (4/4 + 4) 4 Ï 1634 := 11 + (1111 + (1 + 1)11−1−1 ) 2 Ï 1639 := 11 × (1 + (1 + (1 + (1 + (1 + (1 + 11)1+1 ))))) 2 Ï 1644 := (1 + 11) × (111 + ((1 + 1) × (1 + 1 + 11))) := 2 + ((((2 × 22) + 2) ) − 22 ) := (22 × (22 + 2)) + 2222/2 := 2 × (2 × (22 − 2)2 + 22) := ((3 × (3 × 33 × 33)) + 3)/(3 + 3) := 3/3 + ((3 × 3 + 3)3 + (3 × (3 − 33))) := (3 × 3 + 3)3 − (3 × 33 + 3) := 4/4 + (4 × (44 − 4) + (4/4 + 4)4 ) := (((4 − 4/4)4+4 ) − (4/4 + 4))/4 := 44 + (4 × (444 − 44)) := 55 + ((5 − 5/5) + 555) := (55 × (5 × 5 + 5)) − 55/5 := 55 /5 + ((5 − 5/5)5 − 5) := (((6 + 6)/6) + 6 × 6) × ((6 × 6 + 6/6) + 6) := 66/6 × (((6 + 6) × (6 + 6) − 6/6) + 6) := (66 × (6 × 6 − 66/6)) − 6 := 7 + ((77 × (7 + 7 + 7)) + ((77 − 7)/7)) := 7/7 + ((7 + 7 + 7) × (7/7 + 77)) := 7 + (((7 + 7 + 7) × (7/7 + 77)) − 7/7) := (88/8 + 8) × (88 − ((8 + 8)/8)) := 8 + ((8888/8 + 8 × 8 × 8) + 8) := ((88 + 8)/8) × ((8 × (8 + 8) + 8/8) + 8) := 9 + ((9 × (99 + 9 × 9)) + ((9 × 9 + 9)/(9 + 9))) := 9 + (((9 × (99 + 9 × 9)) + 9/9) + 9) := 9 + ((((9 + 9 + 9)/9) × (((9 + 9)/9)9 )) + 99) 5 Ï 1635 := (111 − 1 − 1) × (1 + 1 + 1 + 1 + 11) 2 Ï 1640 := 1111 + (1 + 11 + 11)1+1 Ï 1645 := 1 + ((1 + 11) × (111 + ((1 + 1) × (1 + 1 + 11)))) := 2 × (2 × (22 − 2)2 − 2 + 22) 2 := 22 + ((2 × ((22 + 2) )) − 2/2) 3 := 2 + ((2 × 22 − 2)2 − (22/2)2 ) 3 := 3 × (((3 − 3/3)3×3 ) + 33) := 3 + ((((33/3) ) − 3 ) + 333) := 3/3 + ((3 × 3 + 3)3 − (3 × 33 + 3)) := (44/4 + 4) × ((44 + 4)/4 + 44) := (44 − 4) × ((4/4 − 4) + 44) := 4 × 44 + ((4/4 + 4)4 − 4) := 5 + ((5 × (5 × (55 + 5 + 5))) + 5) := (55 × (5 × 5 + 5)) − 5 − 5 := (55 × (5 × 5 + 5)) − 5 := (6 − 6/6) × (666/6 + 6 × 6 × 6) := ((6 + 6)/6 + 6) × (6 × 6 × 6 − (66/6)) := (7/7 + 7) × (((7 + 7)/7)7 + 77) := (6 × 6 − 6/6) × (66/6 + 6 × 6) := 7 + ((77 × (7 + 7 + 7)) + (77/7)) := 88 + (8 × 8 × (8 + 8 + 8) + (88/8)) := 8 + ((88 + 8) × (8/8 + 8 + 8)) := ((88/8 + 8) × (88 − 8/8)) − 8 := (99/9 + 9) × (9/9 + 9 × 9) := 999 + (9 × (9 × 9 − 9) − ((9 + 9)/9)) 9 := 99 + (((9 + 9 + 9)/9) × (((9 + 9)/9) )) Ï 1636 := 1 + ((111 − 1 − 1) × (1 + 1 + 1 + 1 + 11)) := 7 + ((7 + 7 + 7) × (7/7 + 77)) Ï 1641 := 1 + (1111 + (1 + 11 + 11)1+1 ) 2 Ï 1646 := 11 + ((111 − 1 − 1) × (1 + 1 + 1 + 1 + 11)) 2 := 222 + (2 × ((22 + 2)2 )) := (2 × 22 − 2) − ((22/2) + 2) := 2222 − ((22 + 2)2 ) := 3 + (((3 × (3 × 33 × 33)) − 3)/(3 + 3)) := 3 + ((3 × 3 + 3)3 + (3 × (3 − 33))) := (3 × 3 + 3)3 − (3 × 33 + 3/3) := 44 × 44 − (44 + 44 ) := 4 × 44 + ((4/4 + 4)4 − (4 + 4)) := 4 + ((44 × (44 − 4)/(4 + 4)) + 44 ) := 55/5 + (5 × (5 × (55 + 5 + 5))) := 5/5 + ((55 × (5 × 5 + 5)) − (5 + 5)) := 5/5 + ((55 × (5 × 5 + 5)) − 5) 6 6 := 6 × 6 + (((6 + 6)/6) × (6 × 6 − 66/6)) := 6 × 6 × 66 − (((6 × 6/(6 + 6)) ) + 6) := (((6 + 6)/6)66/6 ) − (6 × 66 + 6) := 7 + ((77 × (7 + 7 + 7)) + (77 + 7)/7) := (((7 + 7 + 7)/7)7 ) − (7 × 77 + 7) := 7 + (((7 + 7 + 7) × (7/7 + 77)) + 7/7) := 8 + (88/8 × (888/(8 − (8 + 8)/8))) := 8 + (((88 + 8) × (8/8 + 8 + 8)) + 8/8) := ((8 + 8)/8) × (888 − (8/8 + 8 × 8)) := 9 + (((9 × (99 + 9 × 9)) − ((9 + 9)/9)) + 9) := 9 + ((9 × (99 + 9 × 9)) + ((99 + 9)/9)) := 999 + (9 × (9 × 9 − 9) − 9/9) Ï 1637 := 1 + (1 + ((111 − 1 − 1) × (1 + 1 + 1 + 1 + 11))) Ï 1642 := 1 + (1 + (1111 + (1 + 11 + 11)1+1 )) Ï 1647 := 111 + ((1 + 1 + 1) × (1 + 1)11−1−1 ) := 2/2 + ((2 × ((22 + 2)2 )) + 222 ) := (2 × 22) + ((2 × (22 − 2))2 − 2) := 2/2 + 2222 − (22 + 2)2 := 333 + (((33/3)3 ) − 33 ) := 3 + (((3 × 3 + 3)3 + (3 × (3 − 33))) + 3/3) := 3 × ((3 + 3)3 + 333) := 4 + (4 × (44 − 4) + (4/4 + 4)4 ) := 44 + (44 × (44 − 4)/(4 + 4)) := (4 × (444 − 4 × (4 + 4))) − 4/4 5 := 5 + (((5 + 5)/5) × ((5/5 − 5) + 55)) := (5 + 5)/5 + ((55 × (5 × 5 + 5)) − (5 + 5)) := (5 + 5)/5 + ((55 × (5 × 5 + 5)) − 5) := 6 + (((6/6 − 66) × ((66/6) − 6 × 6)) + 6) := 66 + (6 × 6 × (6 × 6 + 6) + ((6 + 6)/6) ) := 6 × 6 × 66 − ((6 × 6/(6 + 6))6 ) := ((7 + 7 + 7) × (7/7 + 77)) − 7/7 := 7 + (((77 × (7 + 7 + 7)) + (77/7)) + 7) := 7 + ((7/7 + 7) × (((7 + 7)/7)7 + 77)) 6 := ((8 + 8) × (888/8 − 8)) − 88/8 := 8 + ((88/8 + 8) × (88 − ((8 + 8)/8))) := 888/8 + 8 × 8 × (8 + 8 + 8) := 9 + (((9 × (99 + 9 × 9)) − 9/9) + 9) := ((9 + 9)/9) × (9 × (9 × 9 + 9) + (99/9)) := 999 + 9 × (9 × 9 − 9) 119 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1648 := (1 + 1)11 − ((1 + 1) × (11 − 1))1+1 Ï 1653 := (1 + 1 + 1) × (1 + ((1111 − 11)/(1 + 1))) Ï 1658 := ((1 + 1 + 111)1+1 ) − 11111 := 222/2 − (22 − 2)2 := (2 × 22 − 2)2 − 222/2 := 2 + (((2 × 22) + 2) × (2 + 2 + 2)2 ) := 3/3 + (3 × ((3 + 3)3 + 333)) := 33 + (33 × (33 + 33)) := 333 + (((33/3)3 ) − (3 + 3)) := 4 × (444 − 4 × (4 + 4)) := 4 + ((4/4 + 4)4 + 4 × 44 ) := 4 + ((((4/4 + 4)4 + 4 × 44 ) + 4/4) + 4) := (5 − 5/5)5 + (55 − 5)/5 := 5 + ((5 − 5/5)5 + (55 − 5)/5) := 5 + (((5 − 5/5)5 + (55 − 5)/5) + 5) := ((6 + 6)/6)6 + (66 × ((6 + 6 + 6) + 6)) := 6 + (6 × 6 × 66 − ((6 × 6/(6 + 6))6 )) := 6 + ((((6 + 6)/6)66/6 ) − 6 × 66) := (((7 + 7 + 7)/7)7 ) − 7 × 77 := 7/7 + ((7 + 7) × (777/7 + 7)) := ((7/7 + 7 + 7) × 777/7) − 7 := (8 + 8) × (888/8 − 8) := (88/8 + 8) × (88 − 8/8) := 8 + ((8 − 8/8 + 8) × (888 − 8)/8) := 9/9 + (9 × (9 × 9 − 9) + 999) := (9/9 + 9 + 9) × (99 − ((99 + 9)/9)) := 9 + (((99/9 + 9) × (9/9 + 9 × 9)) + 9) Ï 1649 := ((111 − 1) × (1 + 1 + 1 + 1 + 11)) − 1 Ï 1654 := (1 + 1) × ((1 + 1)11 − 11 × 111) Ï 1659 := (1 + 1 + 1) × (((1111 − 1)/(1 + 1)) − (1 + 1)) := (((2 × 22) + 2) × (2 + 2 + 2) ) − 2 := ((2 × (22 − 2) + 2/2)2 ) − 22 := 3 + ((3 × 3 + 3)3 − (3 × 33 + 3/3)) := 3/3 + ((33 × (33 + 33)) + 33) := 3 + ((3 × (3 − 33 )) + (3 × 3 + 3)3 ) := 4 × 44 + (4/4 + 4)4 := 4 + (((4/4 + 4)4 + 4 × 44 ) + 4/4) := 44 + (4 × (4 + 4) × 44 − (4/4 + 4)) := 55 /5 + (5 − 5/5)5 := 5 + ((5 − 5/5)5 + 55 /5) := 5 + (((5 − 5/5)5 + 55 /5) + 5) := (66 × (6 × 6 − 66/6)) − 6/6 := (6 × (6 × 6 × 6 − 6 + 66)) − (6 + 6)/6 := 666/6 + 6 × 6 × (6 × 6 + 6 + 6) := 2/2 + (2 22/2 2 − (22 − 2) ) 2 := 7 × 77 + (7777 − 7)/7 := ((7 + 7)/7) + ((7 + 7) × (777/7 + 7)) := 7 + ((7 + 7) × (777/7 + 7)) := 8/8 + ((8 + 8) × (888/8 − 8)) := 8/8 + ((88/8 + 8) × (88 − 8/8)) := 88/8 + ((8 + 8) × (888/8 − 8)) := 9 + ((99/9 + 9) × (9/9 + 9 × 9)) := ((9 + 9)/9) × ((9 × 9 × 9 − 9/9) + 99) := 9 + ((9 × (9 × (9 + 9) + 9)) + 999/9) Ï 1650 := (111 − 1) × (1 + 1 + 1 + 1 + 11) Ï 1655 := 1 + ((1 + 1) × ((1 + 1)11 − 11 × 111)) := 2 + (222/2 − (22 − 2)2 ) := 2 + ((2 × 22 − 2)2 − 222/2) := (22 − 2) × (((2/2 + 2)2+2 ) + 2) := 3 + (3 × ((3 + 3)3 + 333)) := 333 + (((33/3)3 ) − 3 × 3) := (3 − 3/3 + 3) × (333 − 3/3) := 4/4 + ((4/4 + 4)4 + 4 × 44 ) := (4/4 + 4) × (((44 + 44 )/4) + 44 ) := 44 + (4 × (4 + 4) × 44 − 4) := 55 × (5 × 5 + 5) := 5 + (55 × (5 × 5 + 5)) := 5 + ((55 × (5 × 5 + 5)) + 5) := 66 × (6 × 6 − 66/6) := (6 × (6 × 6 × 6 − 6 + 66)) − 6/6 := (6 − 6/6) × (6 × 66 − ((6 + 6)/6)6 ) := 7 × 77 + 7777/7 := 7 + ((((7 + 7 + 7)/7)7 ) − 7 × 77) := 7 + (((7 + 7) × (777/7 + 7)) + 7/7) := (8 − 8/8 + 8) × (888 − 8)/8 := 888 + (8 × (88 + 8) − 8/8) := ((8 + 8) × (88 + 8 + 8)) − (8/((8 + 8)/8)) := 999/9 + (9 × (9 × (9 + 9) + 9)) := ((9 + 9) × ((99/9) + 9 × 9)) − 9/9 := (99/9 + 9) × (((9 + 9)/9) + 9 × 9) Ï 1651 := 1 + ((111 − 1) × (1 + 1 + 1 + 1 + 11)) := (22/2 + 2) × ((2 2×(2+2) − 2)/2) Ï 1656 := (1 + 1) × (1 + ((1 + 1)11 − 11 × 111)) := ((2 × 22) + 2) × (2 + 2 + 2) Ï 1660 := (11 − 1) × (1 + (11 × (1 + 1 + 1 + 1 + 11))) Ï 1661 := (((1 + 1 + 1) × 1111) − 11)/(1 + 1) := 2 + (((2 × (22 − 2) + 2/2)2 ) − 22) 2 := 3 + ((3 × ((3 + 3)3 + 333)) + 3/3) := 3 × (((3 + 3)3 + 333) + 3) := 333 + (((33/3)3 ) − 3) := 4 + ((4 × (444 − 4 × (4 + 4))) − 4/4) := 4 + ((4 × (444 − 4 × (4 + 4))) + 4) := 4 × (44 + 4) + ((4/4 + 4)4 − 4) := 5/5 + (55 × (5 × 5 + 5)) := 5 + ((55 × (5 × 5 + 5)) + 5/5) := 55/5 + (55 × (5 × 5 + 5)) := 6/6 + (66 × (6 × 6 − 66/6)) := 6 × (6 × 6 × 6 − 6 + 66) := 6 + ((6 × (6 × 6 × 6 − 6 + 66)) − 6/6) := 7 × 77 + (7777 + 7)/7 := 7 + ((7777 − 7)/7 + 7 × 77) := 7 × 77 + ((7777 + 77)/7) := (88 + 8 + 8)/8 × (8 × (8 + 8) − 8/8) := 888 + 8 × (88 + 8) := 8 + ((88/8 + 8) × (88 − 8/8)) := (9 × (9 × (9 + 9) + 9)) + ((999 + 9)/9) := (9 + 9) × ((99/9) + 9 × 9) := 99/9 × (9 × (9 + 9) − (99/9)) Ï 1652 := 1 + (1 + ((111 − 1) × (1 + 1 + 1 + 1 + 11))) Ï 1657 := ((1 + 1 + 1) × ((1 + 1111)/(1 + 1))) − 11 Ï 1662 := (1 + 1 + 1) × (((1111 − 1)/(1 + 1)) − 1) := 2 × ((2 × ((22 − 2) + 2)) + 22) := 2/2 + (((2 × 22) + 2) × (2 + 2 + 2) ) := (2/2 + 2) × (((22 + 2)2 ) − 22) := 33 + ((33 × (33 + 33)) − 3/3) := (3 × 3 + 3)3 + ((3 − (3 + 3)3 )/3) := (3 × 3 + 3)3 − (33 + 33) := 4 + (4 × (444 − 4 × (4 + 4))) := 4 + (((4/4 + 4)4 + 4 × 44 ) + 4) := 44 + (4 × (4 + 4) × 44 − (4 + 4)/4) := (5 + 5)/5 + (55 × (5 × 5 + 5)) := 5 + ((55 × (5 × 5 + 5)) + ((5 + 5)/5)) := (5/5 + 5) × (5 × 55 + ((5 + 5)/5)) := 6/6 + (6 × (6 × 6 × 6 − 6 + 66)) := 6 + (6 × (6 × 6 × 6 − 6 + 66)) := 7 + (7777/7 + 7 × 77) := 7 + (((((7 + 7 + 7)/7)7 ) − 7 × 77) + 7) := ((8 + 8) × (88 + 8 + 8)) − (88 + 8)/8 := 8/8 + (8 × (88 + 8) + 888) := ((8 + 8) × (88 + 8 + 8)) − (8 + 8)/8 := ((99/9) × (9 × (9 + 9) − (99/9))) − 9 := 9/9 + ((9 + 9) × ((99/9) + 9 × 9)) := (9 + 9) × 99 − (999/9 + 9) 2 66/6 := (((6 + 6)/6) ) − 6 × 66 := (7 + 7) × (777/7 + 7) 2 120 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1663 := (111 × (1 + 1 + 1 + 1 + 11)) − 1 − 1 := ((22 + 2 + 2) × 2 2+2+2 Ï 1673 := 1 + (11 × ((11 × (1 + (1 + 1 + 11))) − (1 + 1))) Ï 1668 := (1 + 1 + 1) × ((1 + 1111)/(1 + 1)) := 2 × ((22 × ((2 + 2 + 2) + 2)) − 2) := 2/2 + (2 × (22 × ((2 + 2 + 2)2 + 2))) := 3 + (333 × (3 − 3/3 + 3)) := 3 × 3 + (((33/3)3 ) + 333) 2 ) − 2/2 := 333 + (((33/3)3 ) − 3/3) 4 := 4 + ((4 × (44 + 4) + (4/4 + 4)4 ) + 4) := 44 + (4 × (4 + 4) × 44 − 4/4) := 4 + (4 × (4 + 4) × 44 + 4 ) := (((5 + 5 + 5) × 555) − (5 + 5))/5 := (5 − (5 + 5)/5) × (555 + 5/5) := 5 + ((5 − (5 + 5)/5) × (555 + 5/5)) := 6 + ((6 × (6 × 6 × 6 − 6 + 66)) + 6/6) := 6 + ((6 × (6 × 6 × 6 − 6 + 66)) + 6) := (6 × (6 × 66 − 6)) − (666 + 6/6) := 77/7 + ((7 + 7) × (777/7 + 7)) := 7 × 7 + ((77 × (7 + 7 + 7)) + ((7 + 7)/7)) := 7 + ((77 × (7 + 7 + 7)) + 7 × 7) := ((8 + 8) × (88 + 8 + 8)) − 8/8 := (8/((8 + 8)/8)) + ((8 + 8) × (88 + 8 + 8)) := 8/8 + 88 × (88/8 + 8) := (9 + 9) × 99 + (((9 − 999)/9) − 9) := 99 + (9 × 9 × (9 + 9) + 999/9) := (9 + 9) × 99 − (9/9 + 99 + 9) Ï 1669 := 1 + ((1 + 1 + 1) × ((1 + 1111)/(1 + 1))) Ï 1664 := (111 × (1 + 1 + 1 + 1 + 11)) − 1 Ï 1674 := (1 + 1 + 1) × (1 + (1 + ((1 + 1111)/(1 + 1)))) := 2 + ((222/2 × ((22/2 + 2) + 2)) + 2) := 2 + (2 × (22 × ((2 + 2 + 2)2 + 2))) := 3 + (((3 × 3333) − 3)/(3 + 3)) := 3 × (3 × (((3 + 3)3 − 33) + 3)) := 4 × (4 × (44 − 4) + 44 ) := 4 + (4 × (44 + 4) + (4/4 + 4)4 ) := 44 × 44 − (((4 + 4)/4 + 44 ) + 4) := (((5 + 5 + 5) × 555) − 5)/5 := 5 + ((((5 + 5 + 5) × 555) − 5)/5) := 5 × 5 + ((5 − 5/5)5 + 55 /5) := (6/6 + 6 + 6) × (((6 + 6)/6)6/6+6) := (((6 × 6 − 6/6) + 6) := (7 − 7/7 + 7) × ((7 + 7)/7)7 := 7 + ((((((7 + 7 + 7)/7) ) − 7 × 77) + 7) + 7) := ((7 × 7 − (7/7 + 7))(7+7)/7 ) − 7 := (8 + 8) × (88 + 8 + 8) := 8 + (((88/8 + 8) × (88 − 8/8)) + 8) := (8 + 8)/8 + 88 × (88/8 + 8) := 9 + (((9 + 9) × ((99/9) + 9 × 9)) − 9/9) := 9 + ((99/9 + 9) × (((9 + 9)/9) + 9 × 9)) := (9 + 9) × 99 − (99 + 9) := (22 + 2 + 2) × 2 2+2+2 := 333 + ((33/3)3 ) (6+6)/6 )−6−6 := (6 × (6 × 66 − 6)) − 666 7 Ï 1670 := (11 − 1) × ((1 + 1 + 11)1+1 − (1 + 1)) Ï 1665 := 111 × (1 + 1 + 1 + 1 + 11) Ï 1675 := 11 + ((111 × (1 + 1 + 1 + 1 + 11)) − 1) 2 := 222/2 × ((22/2 + 2) + 2) := (2 × (22 × ((2 + 2 + 2) + 2))) − 2 := (((2 × 22) + 2)2 ) − ((22 − 2/2)2 ) := 333 × (3 − 3/3 + 3) := 3 + ((((33/3)3 ) + 333) + 3) := (3 × 33+3 ) − ((3 − 3/3)3×3 ) := 4 × (44 + 4) + (4/4 + 4)4 := 4 + (((4 − 444)/4) + 4 × 444) := 44 × 44 − ((4/4 + 44 ) + 4) := (5 + 5 + 5) × 555/5 := 5 + ((5 + 5 + 5) × 555/5) := 5 × ((5 × 55 + 55) + 5) 6/6+6) := (6 − 6/6) × 666 × 6/(6 + 6) := 6 + ((6/6 + 6 + 6) × (((6 + 6)/6) := (7/7 + 7 + 7) × 777/7 := 7 + (((7 + 7) × (777/7 + 7)) + (77/7)) ) := (7 − ((7 + 7)/7)) × (7 × 7 × 7 − (7/7 + 7)) := 8/8 + ((8 + 8) × (88 + 8 + 8)) := 88 × (88/8 + 8) − (8 + 8)/8 := 88/8 + ((8 + 8) × (88 + 8 + 8)) := 9 + ((9 + 9) × ((99/9) + 9 × 9)) := (9 + 9) × 99 − ((999 + 9)/9) := 9 + ((99 − 9/9) × ((9 − 9/9) + 9)) Ï 1671 := (1 + 1 + 1) × (1 + ((1 + 1111)/(1 + 1))) Ï 1666 := 1 + (111 × (1 + 1 + 1 + 1 + 11)) 2 := (66 + 6/6) × (6 × 6 − 66/6) Ï 1676 := 11 + (111 × (1 + 1 + 1 + 1 + 11)) := (2 × (22 × ((2 + 2 + 2) + 2))) − 2/2 := 2 × ((22 × ((2 + 2 + 2)2 + 2)) + 2) := ((3 × 3333) − 3)/(3 + 3) := 3 + ((333 × (3 − 3/3 + 3)) + 3) := 3 + ((((33/3)3 ) + 333) + 3 × 3) := 4 × 444 + ((4 − 444)/4) := 44 × 44 − (((4/4 + 44 ) + 4) + 4) := 44 × 44 − (44 + 4) := 5 + (5555/5 + 555) := 5 × 5 + ((55 × (5 × 5 + 5)) + 5/5) := 6 + ((6 − 6/6) × (6 × 66 − ((6 + 6)/6) )) := 6 + ((6 − 6/6) × 666 × 6/(6 + 6)) := 6/6 + ((66 + 6/6) × (6 × 6 − 66/6)) := 7 × (777 − 7 × 77) := 7 + ((7 − 7/7 + 7) × ((7 + 7)/7)7 ) := (77/7 × ((77 − 7/7) + 77)) − 7 := (8 + 8)/8 + ((8 + 8) × (88 + 8 + 8)) := 88 × (88/8 + 8) − 8/8 := ((88 + 8)/8) + ((8 + 8) × (88 + 8 + 8)) := (99 − 9/9) × ((9 − 9/9) + 9) := (9 + 9) × 99 − 999/9 := (9 + 9)/9 + ((9 + 9) × 99 − (99 + 9)) := 2 + ((22 + 2 + 2) × 2 2+2+2 ) := 555 + 5555/5 6 Ï 1667 := (1 + ((1 + 1 + 1) × 1111))/(1 + 1) Ï 1672 := 11 × ((11 × (1 + (1 + 1 + 11))) − (1 + 1)) Ï 1677 := 1 + (11 + (111 × (1 + 1 + 1 + 1 + 11))) := 2 × (22 × ((2 + 2 + 2)2 + 2)) := ((2 × (22 − 2) + 2/2)2 ) − 2 − 2 := ((3 × 3333) + 33)/(3 + 3) := 3 + (3 × (3 × (((3 + 3)3 − 33) + 3))) := 4 + ((4 × (4 + 4) × 44 − 4/4) + 4 ) := 44 × (44 − ((4 + 4)/4 + 4)) := 4/4 + (44 × 44 − (44 + 4)) := 555 + (5555 + 5)/5 := 5 + ((5555 + 5)/5 + 555) := 2 + (222/2 × ((22/2 + 2) + 2)) := 3 + (((33/3)3 ) + 333) 4 := 66/6 + (6 × (6 × 6 × 6 − 6 + 66)) := 5 × 5 + ((55 × (5 × 5 + 5)) + ((5 + 5)/5)) 6 := 66/6 × (6 × 6 × 6 − ((6 + 6)/6) ) := 6 + (((6 − 6/6) × 666 × 6/(6 + 6)) + 6) := 7/7 + ((77 × (7 + 7 + 7)) + 7 × 7) := 7 + ((7/7 + 7 + 7) × 777/7) := 7 × 7 + ((77 × (7 + 7 + 7)) + (77/7)) := 888 + (8 × (88 + 8) + (88/8)) := 88 × (88/8 + 8) := (88 + 8 + 8)/8 × (8 × (8 + 8) + 8/8) := 9/9 + ((99 − 9/9) × ((9 − 9/9) + 9)) := 99/9 × (9 × (9 + 9) − (9/9 + 9)) := 9 + ((9 × 9 × (9 + 9) + 999/9) + 99) 121 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1678 := 11 + ((1 + ((1 + 1 + 1) × 1111))/(1 + 1)) Ï 1683 := 11 × ((11 × (1 + (1 + 1 + 11))) − 1) Ï 1688 := ((11 − 1) × (1 + 1 + 11)1+1 ) − 1 − 1 := (2 × 22)2 − (22×(2+2) + 2) := 2 + ((2 × (22 − 2) + 2/2)2 ) := 2 × (2 × ((22 − 2)2 + 22)) := 3 + 3 × 33+3 − (3 − 3/3)3×3 := 33 × ((33 − 3) + 33 ) := ((3 × (3 × 3 + 3 + 3)3 ) + 3)/(3 + 3) := 44 × 44 − ((4 + 4)/4 + 44 ) := 4 + (44 × 44 − (4/4 + 44 )) := 4 + ((44 × 44 − 44 ) + 4) := ((5/5 + 5) × (5 × 55 + 5)) − (5 + 5)/5 := 5 × 5 × 55 + ((55 + 5)/(5 + 5) − 5) := 5 × 5 × 55 + (55 + 5)/(5 + 5) := 6 + ((66/6) × (6 × 6 × 6 − ((6 + 6)/6)6 )) := 66/6 × (666/6 + 6 × 6 + 6) := (6 + 6)/6 + ((6 × (6 × 6 × 6 + 66)) − 6) := 7 + (((7 − 7/7 + 7) × ((7 + 7)/7) ) + 7) := 77/7 × ((77 − 7/7) + 77) := 7 + ((7 × 7 − (7/7 + 7))(7+7)/7 ) := 8 + (88 × (88/8 + 8) − ((8 + 8)/8)) := 88/8 + 88 × (88/8 + 8) := 8 + (88 × (88/8 + 8) + 8) := (9 × (9 × 9 − (9 + 9))) + 9999/9 := 99 × ((9 − 9/9) + 9) := (9 − 9/9) × (((999 + 9)/9) + 99) 7 Ï 1679 := ((11 − 1) × (1 + 1 + 11)1+1 ) − 11 Ï 1684 := 1 + (11 × ((11 × (1 + (1 + 1 + 11))) − 1)) 2 2 2 := 2 + ((((2 + 2 + 2) + 22) )/2) := ((2 × (22 − 2) + 2/2) ) − 2 3 3 Ï 1689 := ((11 − 1) × (1 + 1 + 11)1+1 ) − 1 := 2 + ((2222/2) + ((22 + 2)2 )) := (33 − 3/3 − 3) × (((3 + 3)3 + 3)/3) := 3/3 + (33 × ((3 − 3) + 3 )) := (3 × 3 + 3)3 − (33 + 3 + 3) := 44 × 44 − (4/4 + 44 ) := 4 + (44 × 44 − 44 ) := 4 + (((44 × 44 − 44 ) + 4/4) + 4) := ((5/5 + 5) × (5 × 55 + 5)) − 5/5 := 5 + (((5/5 + 5) × (5 × 55 + 5)) − 5/5) := 5 × 5 + ((((5 + 5 + 5) × 555) − 5)/5) := ((66/6 + 6) + 6) × (66 + 6/6 + 6) := (((6 + 6)/6)6+6 ) − (6 × (6 × 66 + 6)) := (6 − 6 × 6) × (6 − 66) − 666/6 := 7 + (((7/7 + 7 + 7) × 777/7) + 7) := 7 + (((77 × (7 + 7 + 7)) + (77/7)) + 7 × 7) := (((7 + 7)/7) × ((77 × 77 + 7)/7)) − 7 := 8 + (88 × (88/8 + 8) − 8/8) := ((88 + 8)/8) + 88 × (88/8 + 8) := 8 + ((88 × (88/8 + 8) + 8/8) + 8) := 9 + ((9 + 9) × 99 − ((999 + 9)/9)) := 9/9 + (99 × ((9 − 9/9) + 9)) := 9 + (((9 + 9) × 99 − 999/9) + 9) Ï 1680 := (11 − 1) × ((1 + 1 + 11)1+1 − 1) Ï 1685 := (1 + 1)11 − (11 × (11 × (1 + 1 + 1))) := 2 × ((2 − 22) × (2 − (2 × 22))) Ï 1690 := (11 − 1) × (1 + 1 + 11)1+1 := 2 + (((2 × (22 − 2) + 2/2)2 ) + 2) := 2 + (2 × (2 × ((22 − 2)2 + 22))) := 3 + ((33 × ((33 − 3) + 33 )) − 3/3) := (3 × 3 + 3)3 − (33/3 + 33 ) := 4 + ((44 × 44 − 44 ) + 4/4) := 44 × 44 + ((44 − 4)/4 − 44 ) := 5 + ((5/5 + 5) × (5 × 55 + 5)) := 5 × ((55 + 5)/(5 + 5) + 5 × 5) := 6 × (((6 + 6)/6) + 6 × 6 × 6) := (6 × (6 × 6 × 6 + 66)) − 6/6 − 6 := (6 × (6 × 6 × 6 + 66)) − (6 + 6)/6 := (77 + 7) × ((7 − 7/7 + 7) + 7) := (7 − ((7 + 7)/7)) × ((7 × 7 × 7 − 7) + 7/7) := 7 + (77/7 × ((77 − 7/7) + 77)) := 8 + 88 × (88/8 + 8) := 8 + ((88 + 8 + 8)/8 × (8 × (8 + 8) + 8/8)) := (8/8 + 8 × 8) × (((((8 + 8)/8) + 8) + 8) + 8) := 9 + ((9 + 9) × 99 − 999/9) := (9 + 9)/9 + (99 × ((9 − 9/9) + 9)) := (9 + 9) × 99 − ((99/9) + 9 × 9) 3 3 := (3 + 3/3) × (3 + 33) := 44 × 44 − 4 4 := (5/5 + 5) × (5 × 55 + 5) 6 Ï 1681 := (1 + ((1 + 1) × ((1 + 1) × (11 − 1))))1+1 2 := (2 × (22 − 2) + 2/2) 3 := ((33/3 + 3 ) + 3) Ï 1686 := 1 + ((1 + 1)11 − (11 × (11 × (1 + 1 + 1)))) 2 := (2 × (2 × ((22 − 2) + 22))) − 2 3−3/3 3 3 Ï 1691 := 1 + ((11 − 1) × (1 + 1 + 11)1+1 ) := 2222 − (((22 + 2/2)2 ) + 2) := 3 + (33 × ((3 − 3) + 3 )) := 33 + (((33/3)3 ) + 333) := 4/4 + (44 × 44 − 4 ) := 4 + ((44 × 44 − 44 ) + (4 + 4)/4) := 44/4 + (44 × 44 − 44 ) := 5/5 + ((5/5 + 5) × (5 × 55 + 5)) := (5/5 + 5) × ((5 × 55 + 5/5) + 5) := 5 + ((5/5 + 5) × ((5 × 55 + 5/5) + 5)) := (6 × (6 × 6 × 6 + 66)) − 6 := (6 × (6 × 6 × 6 + 66)) − 6/6 := 77 + ((77 × (7 + 7 + 7)) − (7/7 + 7)) := 77 + (((7 + 7 + 7)/7) × (7 × 77 − 7/7)) := 8 + (88 × (88/8 + 8) + 8/8) := 8 × (8 × 8 + 8) + (8888 − 8)/8 := (88/8 + 8) × (8/8 + 88) := (9 + 9) × 99 − ((9 + 9)/9 + 99) := (9 + 9) × 99 + (((9 + 9 + 9)/9) − 99) := 9 + ((9 + 9) × 99 − (9/9 + 99)) 4 := ((6 × 6 − 6/6) + 6) (6+6)/6 := (7 × 7 − (7/7 + 7)) (7+7)/7 Ï 1682 := 1 + ((1 + ((1 + 1) × ((1 + 1) × (11 − 1))))1+1 ) 2 2 Ï 1687 := 1111 + (((1 + 1) × (1 + 11))1+1 ) Ï 1692 := 1 + (1 + ((11 − 1) × (1 + 1 + 11)1+1 )) := (((2 + 2 + 2) + 22) )/2 := ((22 + 2)2 ) + 2222/2 := 2 × ((2 × ((22 − 2)2 + 22)) + 2) := (33 × ((33 − 3) + 33 )) − 3/3 := ((3 × (3 × 3 + 3 + 3)3 ) − 3)/(3 + 3) := (3 × 3 + 3)3 − (33 + 3) := (4 + 4)/4 + (44 × 44 − 44 ) := 4 + ((44 × 44 − (4/4 + 44 )) + 4) := ((4 + 4) × (44 − 44)) − 4 := ((5 + 5)/5)5 + (55 × (5 × 5 + 5)) := 5 × 5 × 55 + (55 − 5)/(5 + 5) := 5 + ((55 − 5)/(5 + 5) + 5 × 5 × 55) := 6/6 + (((6 × 6 − 6/6) + 6)(6+6)/6 ) := 6 + (((6 × 6 − 6/6) + 6)(6+6)/6 ) := 6 × (6 × 6 × 6 + 66) := 77 + ((77 × (7 + 7 + 7)) − 7) := ((7 + 7)/7) × ((77 × 77 − 7)/7) := 8 + (88 × (88/8 + 8) + ((8 + 8)/8)) := 8 × (8 × 8 + 8) + 8888/8 := 8/8 + ((88/8 + 8) × (8/8 + 88)) := (9 + 9) × 99 − (9/9 + 99) := 9 + ((9 × (9 × 9 − (9 + 9))) + 9999/9) := 9 + (99 × ((9 − 9/9) + 9)) := 7/7 + ((7 × 7 − (7/7 + 7)) (7+7)/7 ) 122 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1693 := (11 × (11 × (1 + (1 + 1 + 11)))) − 1 2 Ï 1698 := (1 + 1 + 1) × (11 + ((1111 − 1)/(1 + 1))) 2+2 2 := 22 + ((2 × (22 − 2) + 2/2)2 ) := 2222 − ((22 + 2/2) ) := 2 + (((2 := 3/3 + ((3 × 3 + 3)3 − (33 + 3)) := 3 + ((3 × 3 + 3)3 − 33) := 3 + ((3 × 3 + 3)3 − (33 + 3/3)) := 44 + ((4/4 + 4)4 + 4 × 44 ) := (4 + 4)/4 + ((4 + 4) × (44 − 44)) := 4 + ((((4 + 4)4 ) − (((4 − 4/4) + 4)4 )) + 4) := 5 + ((55 + 5)/(5 + 5) + 5 × 5 × 55) := (5 − (5 + 5)/5) × (555 + (55/5)) := 55 + ((5 − 5/5)5 + (55 − 5)/5) := 6/6 + (6 × (6 × 6 × 6 + 66)) := 6 + (6 × (6 × 6 × 6 + 66)) := 66/6 + (6 × (6 × 6 × 6 + 66)) := 77 + ((77 × (7 + 7 + 7)) − 7/7) := (7 − 7/7) × (7 × (7 × 7 − 7) − (77/7)) := 7 + (((7 + 7)/7) × ((77 × 77 + 7)/7)) := ((8 × 8 − 8/8) × (88/8 + 8 + 8)) − 8 := 8 + ((8/8 + 8 × 8) × (((((8 + 8)/8) + 8) + 8) + 8)) := 888 + (888/8 + 8 × 88) := 9 + ((99 × ((9 − 9/9) + 9)) + 9/9) := (9 + 9) × 99 − (((9 + 9 + 9)/9) + 9 × 9) := (9 + 9)/9 + (9 × ((99 + 9 × 9) + 9)) Ï 1694 := 11 × (11 × (1 + (1 + 1 + 11))) − 2) × (22/2) ) + 2) Ï 1703 := (1 + 1 + 11) × ((11 × (1 + 11)) − 1) Ï 1699 := ((11 − 1) × (1 + (1 + 1 + 11)1+1 )) − 1 := ((22 − 2/2) × ((2/2 + 2)2+2 )) − 2 := (22+2 − 2) × (22/2)2 3 Ï 1704 := (1 + 11) × ((1 + 11)1+1 − (1 + 1)) := 2 × (2 × ((2 × (222 + 2)) − 22)) := (3 × 3 + 3) − 3/3 − 33 := 3 + (((3 × 3 + 3) − 33) + 3/3) := 3 + ((3 × 3 + 3)3 − 33 ) := ((4 + 4) × (44 − 44)) − (4 + 4)/4 := 4 + (((4 + 4)4 ) − (((4 − 4/4) + 4)4 )) := 4 + (((4 + 4) × (44 − 44)) + 4) := 55 + ((55 × (5 × 5 + 5)) − (55/5)) := 55 + (((5 − 5/5)5 − 5) + 55 /5) := 55 + ((5 − 5/5)5 + 55 /5) := (6 + 6)/6 + (6 × (6 × 6 × 6 + 66)) := 6 + ((6 × (6 × 6 × 6 + 66)) + 6/6) := 6 + 6 × (6 × 6 × 6 + 66) + 6 := 77 + (77 × (7 + 7 + 7)) := 7 × (77 + 7) + 7777/7 := (7 × (7 × (7 × 7 − (7 + 7)))) − 77/7 3 := 88/8 × (((8 + 8)/8 + 88) + 8 × 8) := 8 + ((88/8 + 8) × (8/8 + 88)) := (8 + 8 + 8) × ((8 × 8 − 8/8) + 8) := 99/9 + (99 × ((9 − 9/9) + 9)) := (9 + 9) × 99 − (((9 + 9)/9) + 9 × 9) := (9 + 9) × 99 + (((9 + 9 + 9)/9) − 9 × 9) Ï 1695 := 1 + (11 × (11 × (1 + (1 + 1 + 11)))) Ï 1700 := (11 − 1) × (1 + (1 + 1 + 11)1+1 ) := (2 × 22)2 + ((2 − 222 )/2) := (2 × 22 − 2)2 − 22+2+2 := 2 + (((2 × (22 − 2) + 2/2)2 ) + 22) := (3 × 3 + 3)3 − 33 := (3 × 3 + 3)3 − (33 + 3/3) := 3 + (((3 × 3 + 3)3 − 33 ) + 3/3) := ((4 + 4)4 ) − (((4 − 4/4) + 4)4 ) := 4 + ((4 + 4) × (44 − 44)) := 44/4 × (444/4 + 44) := 5 − (5 × 5 × 55 + 55) := 5 × (((5 × 55 + 55) + 5) + 5) := 55 + (55 × (5 × 5 + 5)) := (6 − 6/6) × (666 × 6/(6 + 6) + 6) := 6 + ((6 × (6 × 6 × 6 + 66)) + ((6 + 6)/6)) := 6 + 6 × (6 × 6 × 6 + 66) + 6/6 + 6 := 7/7 + ((77 × (7 + 7 + 7)) + 77) := 7 + (((77 × (7 + 7 + 7)) − 7/7) + 77) := 77/7 × (7/7 + 77 + 77) := 8 + (8888/8 + 8 × (8 × 8 + 8)) := (8/8 + 8 + 8) × (((88 + 8)/8) + 88) := 8/8 + ((8 + 8 + 8) × ((8 × 8 − 8/8) + 8)) := (9 + 9) × 99 + (((99 + 9)/9) − 99) := ((9 − 9/9) + 9) × (9/9 + 99) := 99/9 × ((((9 + 9)/9) − 9) + 9 × (9 + 9)) 5 Ï 1696 := 1 + (1 + (11 × (11 × (1 + (1 + 1 + 11))))) Ï 1701 := 1 + ((11 − 1) × (1 + (1 + 1 + 11)1+1 )) Ï 1705 := 11 × (11 + (1 + 11)1+1 ) Ï 1706 := 1 + (11 × (11 + (1 + 11)1+1 )) := 2 + ((22+2 − 2) × (22/2)2 ) := (22 − 2/2) × ((2/2 + 2)2+2 ) := (2 × (2 × (222 − 2))) − 222 := 3/3 + ((3 × 3 + 3)3 − 33) := (3 × 3 + 3)3 − 33 := 33/3 + ((3 × 3 + 3)3 − 33) := (4 + 4) × (44 − 44) := 4 + (((4 + 4) × (44 − 44)) + 4/4) := (44 − 4)/4 + ((4 + 4) × (44 − 44)) := (55/5 + 5) × (555/5 − 5) := ((5 + 5)/5 + 5) × ((5 − (5 + 5)/5)5 ) := 55 + ((55 × (5 × 5 + 5)) + 5/5) := 6 + ((6 × (6 × 6 × 6 + 66)) − ((6 + 6)/6)) := (6/6 + 6) × ((6 × 6/(6 + 6))6−6/6 ) := 6 + 6 × (6 × 6 × 6 + 66) + (6 + 6)/6 + 6 := ((7 + 7)/7) × ((77 × 77 + 7)/7) := 7 + ((77 × (7 + 7 + 7)) + 77) := 7 + (7777/7 + 7 × (77 + 7)) := 8 + ((88 × (88/8 + 8) + 8) + 8) := (8 × 8 − 8/8) × (88/8 + 8 + 8) := (8 + 8)/8 + ((8 + 8 + 8) × ((8 × 8 − 8/8) + 8)) := (9 − 9/9) × (((999 + 9 + 9)/9) + 99) := 9 × ((99 + 9 × 9) + 9) := 9 × 9 × 9 + (999 − ((99 + 99)/9)) Ï 1697 := 1 + (1 + (1 + (11 × (11 × (1 + (1 + 1 + 11)))))) 2 2 Ï 1702 := ((1 + 1 + 11) × ((11 × (1 + 11)) − 1)) − 1 Ï 1707 := 1 + (1 + (11 × (11 + (1 + 11)1+1 ))) := 2 + ((2 × 22 − 2)2 − 22+2+2 ) := 2 + ((((2 × (22 − 2) + 2/2)2 ) + 22) + 2) := 3/3 + ((3 × 3 + 3)3 − 33 ) := 3 + (((3 × 3 + 3)3 − 33 ) + 3) := 44/4 + ((4 + 4) × (44 − 44)) := 5 + (((55 − 5)/(5 + 5) + 5 × 5 × 55) + 5) := 4 + (((4 + 4) × (44 − 44)) + (4 + 4)/4) := 55 + (((55 × (5 × 5 + 5)) − 5) + ((5 + 5)/5)) := 55 + ((55 × (5 × 5 + 5)) + ((5 + 5)/5)) := 6 + ((6 × (6 × 6 × 6 + 66)) − 6/6) := ((66 − 6)/6) + (6 × (6 × 6 × 6 + 66)) := 6 + (6/6 + 6) × (6 × 6/(6 + 6))6−6/6 := (7 × (7 − 77)) + (((7 + 7 + 7)/7)7 ) := 7 + (((77 × (7 + 7 + 7)) + 77) + 7/7) := (7 × (7 × (7 × 7 − (7 + 7)))) − (7/7 + 7) := 2 + (((2 − 22 )/2) + (2 × 22) ) := 3 + ((3 × 3 + 3)3 − (3/3 + 33)) := 4/4 + ((4 + 4) × (44 − 44)) 8×8/(8+8) := ((8 − 8/8) ) − 8 × 88 := 9 + ((9 − 9/9) × (((999 + 9)/9) + 99)) := ((88/8 + 8) × ((8 + 8)/8 + 88)) − 8 := 8 + (((88/8 + 8) × (8/8 + 88)) + 8) := 9/9 + (9 × ((99 + 9 × 9) + 9)) := 9 + ((9 + 9) × 99 − (((9 + 9 + 9)/9) + 9 × 9)) 123 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1708 := (1 + (1 + 1 + 11)) × (1 + 111+1 ) Ï 1713 := 1 + ((1 + 1)11 − ((1 + 1 + 1) × (1 + 111))) Ï 1718 := 1 + (((1 + 11)1+1+1 ) − 11) := 2 + ((2 × (2 × (222 − 2))) − 222) := (2 × 22)2 − (222 + 2/2) := 2 + (((2 × 22)2 − 222) + 2) := ((3/3 + 3) + 3) × ((33+3 + 3)/3) := 3 + ((3 × 3 + 3)3 − (3 × (3 + 3))) := ((3 − 33)/3) + (3 × 3 + 3)3 := (4 × (444 − 4 × 4)) − 4 := 4/4 + (4 × (444 − 4 × 4)) := 4 + ((4 × (444 − 4 × 4)) + (4 + 4)/4) := 5 + (((5 − 5/5)5 + (55 − 5)/5) + 55) := (5 − (5 + 5)/5) × ((55 + 5)/5 − 55) := 55 − (5 × 5 × 55 + ((5 + 5)/5)5 ) := 6 × 6 × 66 − (666 + (6 + 6)/6) := 66 + (6 × 6 × 66 − ((6 × 6/(6 + 6))6 )) := ((6 − 66)/6) + (6 × 6 × (6 × 6 + 6 + 6)) := (7 × (7 × (7 × 7 − (7 + 7)))) − 7 := (7 × (7 × (7 × 7 − (7 + 7)))) − (7 + 7)/7 := ((7 + 7 + 7)/7) + (7 × (7 × (7 × 7 − (7 + 7)))) := 8 + ((8/8 + 8 + 8) × (((88 + 8)/8) + 88)) := 8/8 + ((888 − 8 × 8) + 888) := 8 + ((88/8 + 8) × ((8 + 8)/8 + 88)) := 9 + ((9 + 9) × 99 − (((9 + 9)/9) + 9 × 9)) := (9 + 9) × 99 + (((99 + 9)/9) − 9 × 9) := 99 + ((9 × (99 + 9 × 9)) − 9/9) Ï 1709 := 1 + (1 + 1 + 1 + 11) × (1 + 111+1 ) 2 2 Ï 1714 := (1 + 1)11 − (1 + (1 + 1 + 1) × 111) Ï 1719 := 1 + (1 + (((1 + 11)1+1+1 ) − 11)) := (2 × 22)2 − 222 := (2/2 + 2) × (((22 + 2)2 ) − (2/2 + 2)) := (3 × 3 + 3) − ((3 × (3 + 3)) + 3/3) := (3 × 3 + 3)3 − (33/3 + 3) := (3 × 3 + 3)3 − 3 × 3 := 4/4 + ((4 × (444 − 4 × 4)) − 4) := (4 + 4)/4 + (4 × (444 − 4 × 4)) := ((44 − 4) × (44 − 4/4)) − 4/4 := 22 + (((22/2 + 22) + 2) ) 3 5 5 5 := 5 + (((5 − 5/5) + 5 /5) + 55) := 5 − (5 × (5 × 55 + 5) + (55/5)) := 55 + ((((5 + 5 + 5) × 555) − 5)/5) := 6 × 6 × 66 − (666 + 6/6) := (((6 + 6)/6)6+6 ) − (6 × 6 × 66 + 6) := (((6 − 66) + 6)/6) + (6 × 6 × (6 × 6 + 6 + 6)) := 7/7 + ((7 × (7 × (7 × 7 − (7 + 7)))) − 7) := (7 × (7 × (7 × 7 − (7 + 7)))) − 7/7 := 77/7 + ((7 × (7 × (7 × 7 − (7 + 7)))) − 7) := 8 + ((8 × 8 − 8/8) × (88/8 + 8 + 8)) := (((8 + 8)/8) × (888 + 8/8)) − 8 × 8 := (8/8 + 8) × (8 × (8 + 8 + 8) − 8/8) := 9 + (((9 − 9/9) + 9) × (9/9 + 99)) := 9 × 9 × (9 + 9) + (((9 + 9)/9)9−9/9 ) := 99 + (9 × (99 + 9 × 9)) Ï 1710 := (11 − 1) × (1 + (1 + (1 + 1 + 11)1+1 )) 2 := 2222 − (2(2/2+2) ) Ï 1715 := (1 + 1)11 − (1 + 1 + 1) × 111 := 2/2 + ((2 × 22)2 − 222) Ï 1720 := 1 + (1 + (1 + (((1 + 11)1+1+1 ) − 11))) := (2 − 22) × (2 − 2 × 2 × 22) := (3 × 3 + 3) − (3 × (3 + 3)) := ((3 − 33)/3) + ((3 × 3 + 3)3 − 3) := 3 + ((3 × 3 + 3)3 − 33/3) := 4 × 444 − ((44 + 4 + 4)/4) := 4 + (4 × 444 − (44 + 4)/4) := (44 − 4) × (44 − 4/4) := 5 + ((55 × (5 × 5 + 5)) + 55) := 5 + (((55 × (5 × 5 + 5)) + 55) + 5) := 6 × 6 × 66 − 666 := 6 + (6 × 6 × 66 − (666 + 6/6)) := ((6 + 6)/6 + 6) × (6 × 6 × 6 − 6/6) 3 := 55 − (5 × (5 × 55 + 5) + 5) := (7 − ((7 + 7)/7)) × (7 × 7 × 7 − 7/7) := 7 × (7 × (7 × 7 − (7 + 7))) := (7 − ((7 + 7)/7)) × (7 × 7 × 7 + 7/7) := (88/8 + 8) × ((8 + 8)/8 + 88) := (8 − 8/8) × ((8 + 8) × (8 + 8) − (88/8)) := 8 × (8 × (8 + 8) + 88) − 8 := 9 + (9 × ((99 + 9 × 9) + 9)) := 9 × 9 × 9 + (999 − ((99 + 9 + 9)/9)) := 9/9 + ((9 × (99 + 9 × 9)) + 99) Ï 1711 := 1 + ((11 − 1) × (1 + (1 + (1 + 1 + 11)1+1 ))) Ï 1716 := 11 × ((1 + 11) × (1 + 1 + 11)) Ï 1721 := 1 + (1 + (1 + (1 + (((1 + 11)1+1+1 ) − 11)))) := 222/2 + (2 × (22 − 2))2 := 2 + ((2 × 22)2 − 222) := (22/2)2 + (2 × (22 − 2))2 := 3/3 + ((3 × 3 + 3)3 − (3 × (3 + 3))) := (3 × 3 + 3)3 − (3 × 3 + 3) := (3 × 3 + 3)3 − ((3/3 + 3) + 3) := 4 × 444 − (44 + 4)/4 := 4 + (4 × (444 − 4 × 4)) := 4/4 + ((44 − 4) × (44 − 4/4)) := (5555 + 5 )/5 − 5 × 5 := (5/5 + 5) × (5 × 55 + (55/5)) := 5 + ((5/5 + 5) × (5 × 55 + (55/5))) := 6/6 + (6 × 6 × 66 − 666) := 6 + (6 × 6 × 66 − 666) := (6 × 6 × (6 × 6 + 6 + 6)) − 6/6 − 6 := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) − (77/7)) := 7/7 + (7 × (7 × (7 × 7 − (7 + 7)))) := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) − 7/7) := 88 + (8888/8 + 8 × 8 × 8) := 8 × (8 × (8 + 8) + 88) − (88 + 8)/8 := 8/8 + (8 × (8 × (8 + 8) + 88) − 8) := 9 + ((9 × ((99 + 9 × 9) + 9)) + 9/9) := 9 × 9 × 9 + (999 − ((99 + 9)/9)) := 9 + ((9 × ((99 + 9 × 9) + 9)) + (99/9)) 5 Ï 1712 := (1 + 1)11 − ((1 + 1 + 1) × (1 + 111)) Ï 1717 := ((1 + 11)1+1+1 ) − 11 Ï 1722 := (1 + (1 + 1 + 11)) × (1 + (1 + 111+1 )) := (2 × 22)2 − (222 + 2) := 2 + (((2 × 22)2 − 222) + 2/2) := (2/2 + 2) × (((22 + 2)2 ) − 2) := 33/3 + ((3 × 3 + 3)3 − 33 ) := (3 × 3 + 3)3 − 33/3 := (3 × 3 + 3)3 − (3 + 3) := 4 × (444 − 4 × 4) := 4 + ((4 × (444 − 4 × 4)) + 4/4) := (4 + 4)/4 + ((44 − 4) × (44 − 4/4)) := (55/5 + 5) × ((555 + 5)/5 − 5) := ((55 × 55 + 5555) + 5)/5 := (5/5 + 5) × (((55 + 5)/5) + 5 × 55) := (6 + 6)/6 + (6 × 6 × 66 − 666) := (6 × 6 × (6 × 6 + 6 + 6)) − 66/6 := (6 × 6 × (6 × 6 + 6 + 6)) − 6 := 7 + (77/7 × (7/7 + 77 + 77)) := ((7 + 7)/7) + (7 × (7 × (7 × 7 − (7 + 7)))) := 7 + (7 × (7 × (7 × 7 − (7 + 7)))) := (8 + 8) × ((88/8 + 88) + 8) := 8 × (8 × (8 + 8) + 88) − 88/8 := (8 + 8)/8 + (8 × (8 × (8 + 8) + 88) − 8) := 99/9 + (9 × ((99 + 9 × 9) + 9)) := 9 × 9 × 9 + (999 − (99/9)) := (9/9 + 9 × 9) × (((99 + 9)/9) + 9) 124 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1723 := ((1 + 11)1+1+1 ) − 1 − 1 − 1 − 1 − 1 Ï 1728 := (1 + 11)1+1+1 Ï 1733 := 1 + (1 + (1 + (1 + (1 + ((1 + 11)1+1+1 ))))) := 2 + ((2 × (22 − 2))2 + (22/2)2 ) := (2/2 + 2) × ((22 + 2)2 ) := 2 + ((2/2 + 2) × (((22 + 2)2 ) + 2/2)) := 3/3 + ((3 × 3 + 3)3 − (3 + 3)) := (3 × 3 + 3)3 := 3 + (((3 × 3 + 3)3 − 3/3) + 3) := 44/4 + (4 × (444 − 4 × 4)) := 4 × (4 × 44 + 44 ) := 4/4 + (4 × 444 − 44) := (((55 + 5)/5)5−(5+5)/5 ) − 5 := ((55 + 5)/5)5−(5+5)/5 := 5 + (((55 + 5)/5)5−(5+5)/5 ) := 6/6 + ((6 × 6 × (6 × 6 + 6 + 6)) − 6) := 6 × 6 × (6 × 6 + 6 + 6) := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) − 6/6) := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) + 7/7) := ((77 + 7)/7)(7+7+7)/7 := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) + (77/7)) := 8 + ((8 − 8/8) × ((8 + 8) × (8 + 8) − (88/8))) := 8 × (8 × (8 + 8) + 88) := 8 × 8 × 8 + 88/8 × 888/8 := 9 × 9 × 9 + 999 := (9 + 9) × 99 + ((9 − 9 × 99)/(9 + 9)) 9−9/9 := 9 + ((((9 + 9)/9) ) + 9 × 9 × (9 + 9)) Ï 1724 := ((1 + 11)1+1+1 ) − 1 − 1 − 1 − 1 Ï 1734 := ((1 + 1) × (1 + 1 + 1)) + ((1 + 11)1+1+1 ) Ï 1729 := 1 + ((1 + 11)1+1+1 ) := 2 + ((2/2 + 2) × (((22 + 2)2 ) − 2)) := 2/2 + ((2/2 + 2) × ((22 + 2)2 )) := (2/2 + 2) × (((22 + 2)2 ) + 2) := (3 × 3 + 3)3 − (3/3 + 3) := 3/3 + (3 × 3 + 3)3 := 3 + ((3 × 3 + 3)3 + 3) := (4 × (4 × 44 + 44 )) − 4 := 4/4 + (4 × (4 × 44 + 44 )) := (4 + 4)/4 + (4 × 444 − 44) := 5 − (5 × (5 × 55 + 5) + 5/5) := 5 + (55 × (5 × 5 − 5) + (55 − 5)/5) := ((5555 − (5 + 5)) + 55 )/5 := (6 + 6)/6 + ((6 × 6 × (6 × 6 + 6 + 6)) − 6) := 6/6 + (6 × 6 × (6 × 6 + 6 + 6)) := 6 + (6 × 6 × (6 × 6 + 6 + 6)) := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) + ((7 + 7)/7)) := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) + 7) := (7 × (7 × 7 × 7 − 77)) − ((7 + 7)/7)7 := 8 × (8 × (8 + 8) + 88) − (8/((8 + 8)/8)) := 8/8 + 8 × (8 × (8 + 8) + 88) := 8 + (8 × (8 × (8 + 8) + 88) − ((8 + 8)/8)) := 9/9 + (9 × 9 × 9 + 999) := ((9 − 9/9) + 9) × (999/9 − 9) 5 99/9 := (((9 + 9)/9) ) − (9 + 9) × (9 + 9) Ï 1725 := ((1 + 11)1+1+1 ) − 1 − 1 − 1 Ï 1730 := 1 + (1 + ((1 + 11)1+1+1 )) Ï 1735 := 1 + (((1 + 1) × (1 + 1 + 1)) + ((1 + 11)1+1+1 )) := (2/2 + 2) × (((22 + 2)2 ) − 2/2) := 2 + ((2/2 + 2) × ((22 + 2)2 )) := 2/2 + ((2/2 + 2) × (((22 + 2)2 ) + 2)) := (3 × 3 + 3)3 − 3 := 3 + ((3 × 3 + 3)3 − 3/3) := 3 + (((3 × 3 + 3)3 + 3/3) + 3) := 4/4 + ((4 × (4 × 44 + 44 )) − 4) := (4 + 4)/4 + (4 × (4 × 44 + 44 )) := 4 + 4 × 444 − (44 + 4/4) := 5 + (55 − 5 × (5 × 55 + 5)) := (55 × ((5 + 5)/5)5 ) − 5 × 5 := (6 + 6)/6 + (6 × 6 × (6 × 6 + 6 + 6)) := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) + 6/6) := 77 + ((((7 + 7 + 7)/7) ) − 7 × 77) := 7 + (((7 × (7 × (7 × 7 − (7 + 7)))) + 7/7) + 7) := 7 + (((77 + 7)/7)(7+7+7)/7 ) := 8 + (8 × (8 × (8 + 8) + 88) − (88/8)) := (8 + 8)/8 + 8 × (8 × (8 + 8) + 88) := 8 + (8 × (8 × (8 + 8) + 88) − 8/8) := 9 × 9 × 9 + (999 − ((9 + 9 + 9)/9)) := 9 × 9 × 9 + (((9 + 9)/9) + 999) := 9 + ((9 × 9 × 9 − ((9 + 9)/9)) + 999) Ï 1731 := 1 + (1 + (1 + ((1 + 11)1+1+1 ))) Ï 1736 := 11 + (((1 + 11)1+1+1 ) − (1 + 1 + 1)) 5 := 5 − 5 × (5 × 55 + 5) := (6 × 6 × (6 × 6 + 6 + 6)) − 6 × 6/(6 + 6) 7 Ï 1726 := ((1 + 11)1+1+1 ) − 1 − 1 := ((2/2 + 2) × ((22 + 2)2 )) − 2 := (2/2 + 2) × (((22 + 2)2 ) + 2/2) := 2222 − (222 + 2) := 3/3 + ((3 × 3 + 3)3 − 3) := 3 + (3 × 3 + 3)3 := 3 × 3 + ((3 × 3 + 3)3 − 3/3) := (4 × (4 × 44 + 44 )) − (4 + 4)/4 := 4 × 444 − (44 + 4/4) := 4 + (4 × 444 − 44) 5 := (5555 + 55 )/5 5 := 5 + (5/5 − 5 × (5 × 55 + 5)) := (5555 + 5 )/5 − 5 := (6 × 6 × (6 × 6 + 6 + 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × 6 × (6 × 6 + 6 + 6)) := ((6 + 6)/6 + 6) × (6 × 6 × 6 + 6/6) := 77/7 + (7 × (7 × (7 × 7 − (7 + 7)))) := 7 + (((7 × (7 × (7 × 7 − (7 + 7)))) + ((7 + 7)/7)) + 7) := 7 + (((7 × (7 × (7 × 7 − (7 + 7)))) + 7) + 7) := 8 × (8 × (8 + 8) + 88) − (8 + 8)/8 := 88/8 + (8 × (8 × (8 + 8) + 88) − 8) := 8 + 8 × (8 × (8 + 8) + 88) := 9 × 9 × 9 + (999 − ((9 + 9)/9)) := 999/9 + (9 × (99 + 9 × 9)) := 9 + ((999 − 9/9) + 9 × 9 × 9) Ï 1727 := ((1 + 11)1+1+1 ) − 1 Ï 1732 := 1 + (1 + (1 + (1 + ((1 + 11)1+1+1 )))) Ï 1737 := 11 + (((1 + 11)1+1+1 ) − (1 + 1)) := ((2/2 + 2) × ((22 + 2)2 )) − 2/2 := 2 × ((2 × 2 × 222) − 22) := 2222 − (222 + 2/2) := (3 × 3 + 3)3 − 3/3 := 3 + ((3 × 3 + 3)3 + 3/3) := 3 × 3 + (3 × 3 + 3)3 := 4 × 444 − 44 := 4 + ((4 × 444 − 44) + 4/4) 4 := (4 × (4 × 44 + 4 )) − 4/4 5 := 55 + ((5 + 5)/5 − 5 × (5 × 55 + 5)) := (((5555 + 5 ) + 5)/5) − 5 := ((5555 + 55 ) + 5)/5 := (6 × 6 × (6 × 6 + 6 + 6)) − 6/6 := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) − ((6 + 6)/6)) := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) + (6 × 6/(6 + 6))) 7 := 7 + (((((7 + 7 + 7)/7) ) − 7 × 77) + 77) := 7 + ((((7 × (7 × (7 × 7 − (7 + 7)))) + 7/7) + 7) + 7) := 8 × (8 × (8 + 8) + 88) − 8/8 := (8/((8 + 8)/8)) + 8 × (8 × (8 + 8) + 88) := 8 + (8 × (8 × (8 + 8) + 88) + 8/8) := 9 × 9 × 9 + (999 − 9/9) := (9 + 9) × 99 − ((9 × 99 + 9)/(9 + 9)) := 9 + (9 × 9 × 9 + 999) := 7 + ((7 − ((7 + 7)/7)) × (7 × 7 × 7 + 7/7)) 125 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1743 := 1 + (1 + (1 + (1 + (11 + ((1 + 11)1+1+1 ))))) Ï 1738 := 11 + (((1 + 11)1+1+1 ) − 1) Ï 1748 := ((1 + 1) × (11 − 1)) + ((1 + 11)1+1+1 ) := 2222 − 222 := 2/2 + ((2 × 22 − 2)2 − 22) := (2 × 22 − 2)2 − 22+2 := 3 × 3 + ((3 × 3 + 3)3 + 3/3) := 3 + (((3 × 3 + 3)3 + 3 × 3) + 3) := 3 × 3 + ((3 × 3 + 3)3 + 33/3) := 4 + ((4 × 444 − 44) + (4 + 4)/4) := (4 × (444 − (4 + 4))) − 4/4 := 4 + (4 × (444 − (4 + 4))) := (((5555 + 55 ) + 5) + 5)/5 := 5 + ((((5555 + 55 ) + 5) + 5)/5) := 55 − (5 × 5 × 55 + ((5 + 5)/5)) := ((66 − 6)/6) + (6 × 6 × (6 × 6 + 6 + 6)) := (6/6 + 6) × (((6 × 6/(6 + 6))6−6/6 ) + 6) := 6 + ((((6 + 6)/6 + 6) × (6 × 6 × 6 + 6/6)) + 6) := 77/7 × (7 × (7 + 7 + 7) + (77/7)) := 7 × ((((7 + 7)/7)7+7/7 ) − 7) := (77 − 7/7) × ((((7 + 7)/7 + 7) + 7) + 7) := 8 + (8 × (8 × (8 + 8) + 88) + ((8 + 8)/8)) := 8 + ((8 × (8 × (8 + 8) + 88) − 8/8) + 8) := 8 + ((88 − 8/8) × ((88 + 8)/8 + 8)) := 9 + ((9 × 9 × 9 + 999) + 9/9) := 9 + (((9 − 9/9) + 9) × (999/9 − 9)) := (9/9 + 9 + 9) × ((99/9) + 9 × 9) Ï 1739 := 11 + ((1 + 11)1+1+1 ) Ï 1744 := (111 − 1 − 1) × (1 + 1)1+1+1+1 Ï 1749 := 11 + (11 + (((1 + 11)1+1+1 ) − 1)) := 2/2 + (2222 − 222 ) := 2 + ((2 × 22 − 2)2 − 22) := 2/2 + ((2 × 22 − 2)2 − 22+2 ) := 33/3 + (3 × 3 + 3)3 := 33 + ((3 × 3 + 3)3 − 33/3) := 3 + ((3 × 3 + 3)3 + (3 × (3 + 3))) := 44/4 + (4 × (4 × 44 + 44 )) := 4 × (444 − (4 + 4)) := (4 × (444 − 4)) − 44/4 := 5 − (5 × 5 × 55 + (55/5)) := 55 − ((5 × 5 × 55 + 5/5) + 5) := 55 − (5 × 5 × 55 + 5/5) := 66/6 + (6 × 6 × (6 × 6 + 6 + 6)) := ((6 + 6)/6 + 6) × (6 × 6 × 6 + (6 + 6)/6) := 66/6 × ((666/6 + 6 × 6 + 6) + 6) 5 7+7/7 := 77/7 × ((777 − 7)/7 + 7 × 7) := ((77/7 + 7) × (7 × (7 + 7) − 7/7)) − 7 := 7/7 + (7 × ((((7 + 7)/7) := 88/8 + 8 × (8 × (8 + 8) + 88) := 8 + (8 × (8 × (8 + 8) + 88) + 8) := 88/8 × (((88 − 8/8) + 8 × 8) + 8) := 9 × 9 × 9 + (99/9 + 999) := 9 × 9 × 9 + ((((9 + 9)/9)9/9+9 ) − 9) := 99/9 × (9 × (9 + 9) − ((9 + 9 + 9)/9)) Ï 1740 := 1 + (11 + ((1 + 11)1+1+1 )) ) − 7)) Ï 1745 := 1 + ((111 − 1 − 1) × (1 + 1)1+1+1+1 ) Ï 1750 := 11 + (11 + ((1 + 11)1+1+1 )) := 2 + (2222 − 222 ) := 2 + (((2 × 22 − 2)2 − 22) + 2/2) := 2 + ((2 × 22 − 2)2 − 22+2 ) := 3 + ((3 × 3 + 3)3 + 3 × 3) := 3 + (((3 × 3 + 3)3 + 33/3) + 3) := 33 + ((3 × 3 + 3)3 − 33/3) := (4 × (444 − (4 + 4))) − 4 := 4/4 + (4 × (444 − (4 + 4))) := (4 − 44)/4 + (4 × (444 − 4)) 5 := 5 − ((5 × 5 × 55 + 5) + 5) := 5 − (5 × 5 × 55 + 5) := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) + 6) := 6 + ((6 × 6 × (6 × 6 + 6 + 6)) + (66/6)) 5 := 55 − 5 × 5 × 55 := (6/6 + 6) × (6 × (6 × 6 + 6) − ((6 + 6)/6)) := 7 + (((7 × (7 × (7 × 7 − (7 + 7)))) + (77/7)) + 7) := ((7 + 7)/7) + (77 × (7 + 7 + 7)) := (7 + 7) × (777/7 + 7 + 7) := (88 − 8/8) × ((88 + 8)/8 + 8) := 8 + ((8 × (8 × (8 + 8) + 88) + 8/8) + 8) := 8 × (88 − 8) + (8888 − 8)/8 := 9 + ((9 × (99 + 9 × 9)) + 999/9) := ((9 + 9) × (99 − ((9 + 9)/9))) − 9/9 := 9 × (9 × 9 − 9) + (9999/9 − 9) Ï 1741 := 1 + (1 + (11 + ((1 + 11)1+1+1 ))) 7 Ï 1746 := ((1 + 11)1+1+1 ) + (1 + 1) × (11 − 1 − 1) 2 Ï 1751 := 1 + (11 + (11 + ((1 + 11)1+1+1 ))) := 2 + (((2 × 22 − 2)2 − 22) + 2) := (2 × 22 − 2)2 − (22/2 + 2) := 3 + (((3 × 3 + 3) + 3/3) + 3 × 3) := (3 × (3 + 3)) + (3 × 3 + 3)3 := 33 + ((3 × 3 + 3)3 − (3/3 + 3)) := 4/4 + ((4 × (444 − (4 + 4))) − 4) := (4 + 4)/4 + (4 × (444 − (4 + 4))) := (4 × (444 − 4)) − ((4/4 + 4) + 4) := (2 × 22 − 2) − (22 + 2/2) 3 := 5 + (5555 + 55 )/5 := 5 + ((5555 + 5 )/5 + 5) := 55 + (5/5 − 5 × 5 × 55) := 666 + (6 × 6 × (6 × 6 − 6)) := (66/6 + 6) × ((6 × 6 + 66) + 6/6) := 77 + ((7 − 7/7 + 7) × ((7 + 7)/7) ) := (77/7 + 7) × (7 × (7 + 7) − 7/7) := 7/7 + ((7 + 7) × (777/7 + 7 + 7)) := 88 + ((88/8 + 8) × (88 − 8/8)) := ((8 + 8)/8) × ((888 − (8 + 8)) + 8/8) := 8 × (88 − 8) + 8888/8 := 9 × 9 × 9 + (9999/9 − 99) := (9 + 9) × (99 − ((9 + 9)/9)) := ((9 − 9/9) + 9) × (((999 + 9)/9) − 9) 5 := 6 + (((6 × 6 × (6 × 6 + 6 + 6)) + 6/6) + 6) 7 Ï 1742 := 1 + (1 + (1 + (11 + ((1 + 11)1+1+1 )))) := (2 × 22 − 2)2 − 22 Ï 1747 := ((1 + 1) × (11 − 1)) + (((1 + 11)1+1+1 ) − 1) := (2 × 22 − 2)2 − (22+2 + 2/2) Ï 1752 := (1 + 11) × (1 + (1 + (1 + 11)1+1 )) := 2 × (2 × ((2 × (222 − 2)) − 2)) := 3 + ((3 × 3 + 3) + 33/3) := 3/3 + ((3 × 3 + 3) + (3 × (3 + 3))) := 33 + ((3 × 3 + 3)3 − 3) := (4 × (444 − (4 + 4))) − (4 + 4)/4 := 4 + ((4 × (444 − (4 + 4))) − 4/4) := (4 × (444 − 4)) − 4 − 4 3 3 := 5 + (((5555 + 5 ) + 5)/5) := ((5555 + 55) + 5 )/5 := 55 + ((5 + 5)/5 − 5 × 5 × 55) := 6 + (((6 + 6)/6 + 6) × (6 × 6 × 6 + 6/6)) := 66 + (((6 × 6 − 6/6) + 6)(6+6)/6 ) := (6 × 6 + 6) × (6 × 6 + 6) − 6 − 6 := 7/7 + ((77/7 + 7) × (7 × (7 + 7) − 7/7)) := 7 + ((77 × (7 + 7 + 7)) + ((7 + 7)/7)7 ) := ((8 + 8)/8) × (888 − (8/8 + 8 + 8)) := 8 + (8 × (8 × (8 + 8) + 88) + (88/8)) := 88 + ((8 + 8) × (88 + 8 + 8)) := ((9 + 9)/9) × (9 × 99 − (99/9 + 9)) := 9/9 + ((9 + 9) × (99 − ((9 + 9)/9))) := 9 × 9 + ((9 + 9) × 99 − 999/9) 5 (7+7+7)/7 := 7 + ((((77 + 7)/7) 5 ) + 7) 126 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1753 := 1 + ((1 + 11) × (1 + (1 + (1 + 11)1+1 ))) Ï 1758 := (1 + 1) × ((11 − 1)1+1+1 − 111+1 ) Ï 1763 := (((1 + 1) × (11 + (11 − 1)))1+1 ) − 1 := (2 × 22 − 2)2 − 22/2 := (2 × 22 − 2)2 − (2 + 2 + 2) := (2 × 22 − 2)2 − 2/2 := 33 + (((3 × 3 + 3)3 − 3) + 3/3) := 3 + ((3 × 3 + 3)3 + 33 ) := 3 + (((3 × 3 + 3)3 − 3/3) + 33) := 4 + ((4 × (444 − 4)) − 44/4) := (4 × (444 − 4)) − (4 + 4)/4 := 4 + ((4 × (444 − 4)) − 4/4) := 5 + (55 − (5 × 5 × 55 + ((5 + 5)/5))) := (55 × ((5 + 5)/5)5 ) − (5 + 5)/5 := 5 + ((55 × ((5 + 5)/5)5 ) − ((5 + 5)/5)) := (6 × 6 + 6) × (6 × 6 + 6) − 66/6 := (6 × 6 + 6) × (6 × 6 + 6) − 6 := (6 × 6 + 6) × (6 × 6 + 6) − 6/6 := ((7 + 7) × (77 + 7 × 7)) − 77/7 := 7/7 + (((7 + 7) × (77 + 7 × 7)) − 7) := ((7 + 7) × (77 + 7 × 7)) − 7/7 := 8/8 + (((8 + 8) × (88 + 8 + 8)) + 88) := ((8 + 8)/8) × (888 − 8/8 − 8) := 8 + ((8/8 + 8 × 8) × (88/8 + 8 + 8)) := ((9 + 9)/9) × (9 × 99 − ((99 + 9)/9)) := (9 + 9) × 99 − (9/9 + 9 + 9) 9/9+9 := 9 × 9 × 9 + (((9 + 9)/9) ) Ï 1754 := 1 + (1 + ((1 + 11) × (1 + (1 + (1 + 11)1+1 )))) Ï 1759 := ((111 − 1) × (1 + 1)1+1+1+1 ) − 1 Ï 1764 := ((1 + 1) × (11 + (11 − 1)))1+1 := (2 × (2 × 2 × 222)) − 22 := (2 × 22 − 2)2 − (2/2 + 2 + 2) := ((2 × 22) − 2)2 := 33 + ((3 × 3 + 3)3 − 3/3) := 3 + (((3 × 3 + 3)3 + 33 ) + 3/3) := 3 + ((3 × 3 + 3)3 + 33) := 4 × 444 − (44/((4 + 4)/4)) := (4 × (444 − 4)) − 4/4 := 4 + (4 × (444 − 4)) 5 := 5 + (5 − (5 × 5 × 55 + 5/5)) := (55 × ((5 + 5)/5) ) − 5/5 := 5 + ((55 × ((5 + 5)/5)5 ) − 5/5) := ((6 − 66)/6) + (6 × 6 + 6) × (6 × 6 + 6) := 6/6 + ((6 × 6 + 6) × (6 × 6 + 6) − 6) := (6 × 6 + 6) × (6 × 6 + 6) := ((7 − 77)/7) + ((7 + 7) × (77 + 7 × 7)) := ((7 + 7)/7) + (((7 + 7) × (77 + 7 × 7)) − 7) := (7 + 7) × (77 + 7 × 7) := ((8 + 8)/8) × (888 − 88/8) := (88 × ((88 + 8)/8 + 8)) − 8/8 := 888 + (888 − ((88 + 8)/8)) := (9 + 9) × 99 − ((9/9 + 9 + 9) + 9) := 9 × (9 × 9 − 9) + 9999/9 := (9 + 9) × (99 − 9/9) 5 Ï 1755 := (11 − 1 − 1) × ((1 + 1 + 1 + 11)1+1 − 1) Ï 1765 := 1 + (((1 + 1) × (11 + (11 − 1)))1+1 ) Ï 1760 := (111 − 1) × (1 + 1)1+1+1+1 := 2 + ((2 × 22 − 2)2 − 22/2) := 2 × (2 × (2 × (222 − 2))) := 2/2 + (2 × 22 − 2)2 := 33 + (3 × 3 + 3)3 := 33 + ((3 × 3 + 3)3 − 3/3) := 3 + (((3 × 3 + 3)3 + 33) + 3/3) := (4 × (444 − 4)) − (4/4 + 4) := 4 × (444 − 4) := 4 × 444 − 44/4 5 5 := 55 × ((5 + 5)/5) := 5 + (55 × ((5 + 5)/5)5 ) := (6 + 6)/6 + ((6 × 6 + 6) × (6 × 6 + 6) − 6) := 6/6 + (6 × 6 + 6) × (6 × 6 + 6) := (7 − 7/7 + 7) × (((7 + 7)/7) + 7) := 77/7 × (777/7 + 7 × 7) := 7/7 + ((7 + 7) × (77 + 7 × 7)) := (8/8 + 8 × 8) × (88/8 + 8 + 8) := 88 × ((88 + 8)/8 + 8) := 888 + (888 − 88/8) := (9 + 9) × 99 − (9 + 9 + 9) := 99/9 × (9 × (9 + 9) − ((9 + 9)/9)) := 9/9 + ((9 + 9) × (99 − 9/9)) := 5 + (5 − 5 × 5 × 55) := (6/6 − 66) × (6 − (66 × 6/(6 + 6))) 7 Ï 1756 := 1 + (11 − 1 − 1) × ((1 + 1 + 1 + 11)1+1 − 1) Ï 1761 := 1 + ((111 − 1) × (1 + 1)1+1+1+1 ) Ï 1766 := 1 + (1 + (((1 + 1) × (11 + (11 − 1)))1+1 )) := 2 × (2 × (((22 − 2/2)2 ) − 2)) := (2 × 22 − 2)2 − 2/2 − 2 := 2 + (2 × 22 − 2)2 := 33 + ((3 × 3 + 3)3 + 3/3) := 33 + (3 × 3 + 3)3 := 33 + ((3 × 3 + 3)3 + 33/3) := (4 × (444 − 4)) − 4 := 4/4 + (4 × (444 − 4)) := (4 − 44)/4 + 4 × 444 := 5 + ((5 − 5 × 5 × 55) + 5/5) := 5/5 + (55 × ((5 + 5)/5)5 ) := 5 + ((55 × ((5 + 5)/5)5 ) + 5/5) := ((6 + 6)/6)6 + (6 × (6 × 6 × 6 + 66)) := (6 × 6 + 6) × (6 × 6 + 6) − 6 × 6/(6 + 6) := (6 + 6)/6 + (6 × 6 + 6) × (6 × 6 + 6) := ((7 + 7) × (77 + 7 × 7)) − (7/7 + 7) := ((7 + 7 + 7)/7) × (7 × (77 + 7) − 7/7) := ((7 + 7)/7) + ((7 + 7) × (77 + 7 × 7)) := ((8 + 8)/8) × ((8 − 88)/8 + 888) := 8/8 + (88 × ((88 + 8)/8 + 8)) := (((8 + 8)/8) × (888 − 8/8)) − 8 := 9/9 + ((9 + 9) × 99 − (9 + 9 + 9)) := (9 + 9) × 99 − (((99 + 9)/9) + 9) := (9 + 9)/9 + ((9 + 9) × (99 − 9/9)) 5 Ï 1757 := (1 + 1)11 − (1 + ((1 + 1) × (1 + (1 + 11)1+1 ))) Ï 1762 := (((1 + 1) × (11 + (11 − 1)))1+1 ) − 1 − 1 Ï 1767 := 1 + (1 + (1 + (((1 + 1) × (11 + (11 − 1)))1+1 ))) := 2 + (((2 × 22 − 2)2 − 22/2) + 2) := (2 × 22 − 2)2 − 2 := 2 + ((2 × 22 − 2)2 + 2/2) := 3 + (((3 × 3 + 3)3 − 3/3) + 33 ) := 3/3 + ((3 × 3 + 3)3 + 33) := 3 + (((3 × 3 + 3)3 + 33) + 3) := (4 + 4)/4 + (4 × (444 − 4)) := 4/4 + ((4 × (444 − 4)) − 4) := 4 × 444 − ((4/4 + 4) + 4) 5 := 5 + (((5 + 5)/5 − 5 × 5 × 55) + 5 ) := (5 + 5)/5 + (55 × ((5 + 5)/5) ) := 5 + ((55 × ((5 + 5)/5)5 ) + ((5 + 5)/5)) := (6/6 + 6) × (6 × (6 × 6 + 6) − 6/6) := (6 × 6 + 6) × (6 × 6 + 6) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × 6 + 6) × (6 × 6 + 6) 5 := ((7 + 7) × (77 + 7 × 7)) − 7 := ((7 + 7) × (77 + 7 × 7)) − (7 + 7)/7 := 7 + (77/7 × (777/7 + 7 × 7)) := 888 + (888 − (88/8 + 8)) := ((8 + 8)/8) × ((888 − 8) + 8/8) := 888 + (888 − 8/8 − 8) := 9 + ((9/9 + 9 + 9) × ((99/9) + 9 × 9)) := (9 + 9) × 99 − (99/9 + 9) := (9 + 9) × 99 + (((9 + 9 + 9)/9) − (9 + 9)) 127 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1768 := (1 + 1)1+1+1 × ((1 + 1) × 111 − 1) Ï 1773 := (1 + 1)11 − (11 × (1 + ((1 + 1) × (1 + 11)))) Ï 1778 := 1 + (1 + (111 × (1 + 1)1+1+1+1 )) := 2 + ((2 × 22 − 2)2 + 2) := 2/2 + (2 × ((2 × 2 × 222) − 2)) := 2 + (2 × (2 × 2 × 222)) := 3 + ((((3 × 3 + 3)3 + 33) + 3/3) + 3) := 3 × (3 × 33 × (3 + 3) − 3) := (3 × 3 × 33 × (3 + 3)) − (3/3 + 3) := 4 × 444 − 4 − 4 := 4/4 + (4 × 444 − 4) := (4 + 4)/4 + 4 × 444 55/5 := (((5 + 5)/5) := (((5 + 5)/5)55/5 ) − (5 × 55 + 5) ) − 5 × 55 := 5 + ((((5 + 5)/5)55/5 ) − 5 × 55) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) − ((6 + 6)/6)) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + (6 × 6/(6 + 6))) := 666 + (6666 + 6)/6 := 77/7 + (((7 + 7) × (77 + 7 × 7)) − 7) := 7 + (((7 + 7) × (77 + 7 × 7)) + ((7 + 7)/7)) := 7 + (((7 + 7) × (77 + 7 × 7)) + 7) := 888 + 888 − 8 := 8 + ((888 − 88/8) + 888) := ((8 + 8)/8) × (888 + 8/8) := 9 + (9999/9 + 9 × (9 × 9 − 9)) := (9 + 9) × 99 − 9 := ((9 + 9)/9) × (9 × 99 − ((9 + 9)/9)) Ï 1769 := 1 + ((1 + 1)1+1+1 × ((1 + 1) × 111 − 1)) Ï 1774 := (1 + 1) × ((111 × (1 + 1)1+1+1 ) − 1) Ï 1779 := 1 + (1 + (1 + (111 × (1 + 1)1+1+1+1 ))) := 2 + (((2 × 22 − 2)2 + 2/2) + 2) := (2 × (2 × 2 × 222)) − 2 := 2 + ((2 × (2 × 2 × 222)) + 2/2) := 3 + (((3 × 3 + 3)3 + 33/3) + 33 ) := 3/3 + (3 × (3 × 33 × (3 + 3) − 3)) := (3 × 3 × 33 × (3 + 3)) − 3 := 4 + (4 × 444 − 44/4) := 4 × 444 − (4 + 4)/4 := 4 + (4 × 444 − 4/4) := 5 + (((55 × ((5 + 5)/5) ) − 5/5) + 5) := 5 + ((5 × (5 − 5 × 55)) − 5/5) := 5 + (((5 × (5 − 5 × 55)) − 5/5) + 55 ) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) − 6/6) := ((66 − 6)/6) + (6 × 6 + 6) × (6 × 6 + 6) := 666 + (((6666 + 6) + 6)/6) := 7 + (((7 + 7) × (77 + 7 × 7)) − ((7 + 7)/7)) := ((77 − 7)/7) + ((7 + 7) × (77 + 7 × 7)) := 7 + ((((7 + 7) × (77 + 7 × 7)) + 7/7) + 7) := 8/8 + ((888 − 8) + 888) := ((8 + 8)/8) × (888 − 8/8) := 8/8 + (((8 + 8)/8) × (888 + 8/8)) := (9 + 9) × 99 − ((99 + 9 + 9)/9) := 9/9 + ((9 + 9) × 99 − 9) := (9 + 9) × 99 − (9 + 9 + 9)/9 5 Ï 1770 := (11 − 1) × (1 + (11 × (1 + 1)1+1+1+1 )) 5 Ï 1775 := (111 × (1 + 1)1+1+1+1 ) − 1 := 22/2 + (2 × 22 − 2)2 := 2 + (((2 × 22 − 2)2 + 2) + 2) Ï 1780 := (1 + 1) × ((11 × (11 − 1 − 1)1+1 ) − 1) := 2 × ((2 × 2 × 222) + 2) := 3 × 3 + ((3 × 3 + 3) + 33) := (((3 + 3) × ((33 × 3 ) − 3)) − 3)/3 := 3/3 + ((3 × 3 × 33 × (3 + 3)) − 3) := 4 × 444 − ((4 + 4)/4 + 4) := 4 × 444 − 4/4 := 4 + 4 × 444 := 5 + ((55 × ((5 + 5)/5)5 ) + 5) := 5 × ((5 × (55 + 5)) + 55) := 5 + ((5 × (5 − 5 × 55)) + 55 ) := 6 + (6 × 6 + 6) × (6 × 6 + 6) := 66/6 + (6 × 6 + 6) × (6 × 6 + 6) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + ((66 − 6)/6)) := 7 + (((7 + 7) × (77 + 7 × 7)) − 7/7) := 77/7 + ((7 + 7) × (77 + 7 × 7)) := ((7 + 7) × ((7 + 7)/7)7 ) − (77 + 7)/7 := (((8 + 8)/8) × (888 + 8/8)) − 8 := 888 + (888 − 8/8) := ((8 + 8)/8) × (888 + ((8 + 8)/8)) := (9 + 9) × 99 − (99 + 9)/9 := (9 + 9)/9 + ((9 + 9) × 99 − 9) := (9 + 9) × 99 − (9 + 9)/9 3 3 Ï 1771 := 11 × (((1 + 1) × (11 − 1 − 1)1+1 ) − 1) Ï 1776 := 111 × (1 + 1)1+1+1+1 Ï 1781 := ((1 + 1) × (11 × (11 − 1 − 1)1+1 )) − 1 := 2 × (2 × 2 × 222) := 2/2 + (2 × ((2 × 2 × 222) + 2)) := 33/3 × ((3 + 3) × 3 − 3/3) := 3 + (3 × (3 × 33 × (3 + 3) − 3)) := (3 × 3 × 33 × (3 + 3)) − 3/3 := 4 × 444 − (4/4 + 4) := 4 × 444 := 4 + (4 × 444 + 4/4) := 55/5 + (55 × ((5 + 5)/5)5 ) := (55/5 + 5) × 555/5 := 5 + ((55/5 + 5) × 555/5) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + 6/6) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + 6) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + (66/6)) := 7 + ((7 + 7) × (77 + 7 × 7)) := 777/7 × (((7 + 7)/7 + 7) + 7) := ((7 + 7) × ((7 + 7)/7)7 ) − 77/7 := 88/8 + (88 × ((88 + 8)/8 + 8)) := (8 + 8) × 888/8 := (8 × ((8 × (8 + 8) + 88) + 8)) − 88/8 := (9 + 9) × 99 − 99/9 := (9 + 9) × 99 + (((9 + 9 + 9)/9) − 9) := (9 + 9) × 99 − 9/9 := (2 × ((2 × 2 × 222) − 2)) − 2/2 3 Ï 1772 := 1 + (11 × (((1 + 1) × (11 − 1 − 1)1+1 ) − 1)) := 2 × ((2 × 2 × 222) − 2) Ï 1777 := 1 + (111 × (1 + 1)1+1+1+1 ) := 2/2 + (2 × (2 × 2 × 222)) 3 3 := 33 + ((3 × 3 + 3) + 33/3) Ï 1782 := (1 + 1) × (11 × (11 − 1 − 1)1+1 ) := 22 × ((2/2 + 2)2+2 ) := (((3 + 3) × ((33 × 3 ) − 3)) + 3)/3 := 3 × 3 × 33 × (3 + 3) := 4/4 + 4 × 444 := 4 + (4 × 444 + (4 + 4)/4) := ((55 + 5)/5) + (55 × ((5 + 5)/5) ) := (555 × (55/5 + 5) + 5)/5 := 5 + ((555 × (55/5 + 5) + 5)/5) := 6 + ((6 × 6 + 6) × (6 × 6 + 6) + ((6 + 6)/6)) := 666 + (6666/6) := 66 × ((66 × 6/(6 + 6)) − 6) := 7 + (((7 + 7) × (77 + 7 × 7)) + 7/7) := 7 + ((((7 + 7) × (77 + 7 × 7)) − 7/7) + 7) := (77/7 + 7) × (7 × (7 + 7) + 7/7) := ((8 + 8)/8) × (888 − ((8 + 8)/8)) := 8/8 + (888 + 888) := 8 + (((8 + 8)/8) × (888 − 8/8)) := (9 + 9) × 99 − 9/9 − 9 := (9 + 9) × 99 + ((9 − 99)/(9 + 9)) := (9 + 9) × 99 := 4 × 444 − 4 5 128 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1783 := 1 + ((1 + 1) × (11 × (11 − 1 − 1)1+1 )) Ï 1788 := 1 + (11 + (111 × (1 + 1)1+1+1+1 )) Ï 1793 := 1 + ((1 + 111) × (1 + 1)1+1+1+1 ) := 2/2 + (22 × ((2/2 + 2)2+2 )) := 2 + ((2 × 22 − 2)2 + 22) := 2/2 + (2 × (2 × (2 × (222 + 2)))) := 3/3 + (3 × 3 × 33 × (3 + 3)) := 3 + ((3 × 3 × 33 × (3 + 3)) + 3) := 33/3 + (3 × 3 × 33 × (3 + 3)) := 4 + ((4 × 444 − 4/4) + 4) := (4 × (444 + 4)) − 4 := 4/4 + (4 × (444 + 4)) 5−(5+5)/5 := 55 + (((55 + 5)/5) := (5/5 + 5) × (((5 − (5 + 5)/5) ) + 55) := 5/5 + (((5 + 5)/5)5 × (55 + 5/5)) := (6 − 6 × 6) × (6 − 66) − 6 − 6 := (6 − 6 × 6) × (6 − 66) − 6/6 − 6 5 ) := 6 + ((6666/6) + 666) := 7 + (777/7 × (((7 + 7)/7 + 7) + 7)) := 7 + (((7 + 7) × ((7 + 7)/7) ) − (77/7)) := 7/7 + ((7 + 7) × ((7 + 7)/7)7 ) := 8 + ((888 − 8/8) + 888) := ((8 × 8 × (8 × 8 − 8)) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 × (8 + 8) + 88) + 8)) := 9/9 + (9 + 9) × 99 := 9 + ((9 + 9) × 99 − ((9 + 9 + 9)/9)) := 99/9 + (9 + 9) × 99 7 Ï 1784 := (1 + 1) × (1 + (11 × (11 − 1 − 1)1+1 )) Ï 1789 := ((1 + 1) × (((11 − 1) × (1 + 1 + 1))1+1 )) − 11 Ï 1794 := 1 + (1 + ((1 + 111) × (1 + 1)1+1+1+1 )) := 2 × (2 × (2 × 222 + 2)) := 2 + (((2 × 22 − 2)2 + 22) + 2/2) := 2 + (2 × (2 × (2 × (222 + 2)))) := 3 + ((3 × 3 × 33 × (3 + 3)) − 3/3) := ((3/3 + 3)3 ) + ((3 × 3 + 3)3 − 3) := 3 + (3 × (3 × 33 × (3 + 3) + 3)) := 4 + (4 × 444 + 4) := 4/4 + ((4 × (444 + 4)) − 4) := (4 + 4)/4 + (4 × (444 + 4)) := (5 × 5 + 5) × (55 + 5) − 55/5 := 55 − ((55/5)5−(5+5)/5 ) := (6 − 6 × 6) × (6 − 66) − 66/6 := (6 − 6 × 6) × (6 − 66) − 6 := ((7 + 7) × ((7 + 7)/7) ) − (7/7 + 7) := 7 + ((77/7 + 7) × (7 × (7 + 7) + 7/7)) := ((7 + 7)/7) + ((7 + 7) × ((7 + 7)/7)7 ) := 8 + (888 + 888) := 8 + ((8 × ((8 × (8 + 8) + 88) + 8)) − (88/8)) := ((8 + 8)/8) × (888 + 8/8 + 8) := (9 + 9)/9 + (9 + 9) × 99 := 9 + ((9 + 9) × 99 − ((9 + 9)/9)) := (9 + 9) × 99 + (99 + 9)/9 := 5 × 5 + ((55 × ((5 + 5)/5)5 ) − 5/5) := 6 + ((6666 + 6)/6 + 666) 7 Ï 1785 := 1 + ((1 + 1) × (1 + (11 × (11 − 1 − 1)1+1 ))) Ï 1790 := (1 + 1) × (((1 + 111) × (1 + 1)1+1+1 ) − 1) Ï 1795 := (1 + 1)11 − (11 × (1 + (11 + 11))) := 22 + ((2 × 22 − 2)2 − 2/2) := (2 × (2 × (2 × (222 + 2)))) − 2 := 2 + ((2 × (2 × (2 × (222 + 2)))) + 2/2) := 3 + (3 × 3 × 33 × (3 + 3)) := (3 × (3 × 33 × (3 + 3) + 3)) − 3/3 := 3 + (((3/3 + 3)3 ) + (3 × 3 + 3)3 ) := 4 + ((4 × 444 + 4/4) + 4) := (4 × (444 + 4)) − (4 + 4)/4 := 4 + ((4 × (444 + 4)) − 4/4) := 5 × 5 + (55 × ((5 + 5)/5) ) := (5 × 5 + 5) × (55 + 5) − 5 − 5 := (5 × 5 + 5) × (55 + 5) − 5 := (66/6 + 6) × (666/6 − 6) := (6 − 6/6) × (6 × (66 − 6) − ((6 + 6)/6)) := 6/6 + ((6 − 6 × 6) × (6 − 66) − 6) 5 7 7 := ((7 + 7) × ((7 + 7)/7) ) − 7 := ((7 + 7) × ((7 + 7)/7) ) − (7 + 7)/7 := (((7 + 7 + 7)/7)7 ) − 7 × (7 × 7 + 7) := 8 + ((888 + 888) + 8/8) := ((8 + 8)/8) × (888 − 8/8 + 8) := 8 + ((888 + 888) + (88/8)) := (9 + 9) × 99 + ((9 + 9 + 9)/9) := 9 + ((9 + 9) × 99 − 9/9) := (9 + 9) × 99 + ((99 + 9 + 9)/9) Ï 1791 := ((1 + 111) × (1 + 1)1+1+1+1 ) − 1 Ï 1796 := 1 + ((1 + 1)11 − (11 × (1 + (11 + 11)))) Ï 1786 := 11 + ((111 × (1 + 1)1+1+1+1 ) − 1) 2 := (2 × (2 × (2 × (222 + 2)))) − 2/2 := 2 × ((2 × (2 × (222 + 2))) + 2) := 3 + ((3 × 3 × 33 × (3 + 3)) + 3/3) := 3 × (3 × 33 × (3 + 3) + 3) := 3 + ((3 × 3 × 33 × (3 + 3)) + 33/3) := 4 × 444 + (44 − 4)/4 := (4 × (444 + 4)) − 4/4 := 4 + (4 × (444 + 4)) := 22 + (2 × 22 − 2) 5 := 5 + (((55/5 + 5) × 555/5) + 5) := 55 + (5555 + 5 )/5 := 5/5 + ((5 × 5 + 5) × (55 + 5) − 5) := (((6 + 6)/6) + 6 × 6) × (66/6 + 6 × 6) := 6 + ((66/6 + 6) × (666/6 − 6)) := (6 + 6)/6 + ((6 − 6 × 6) × (6 − 66) − 6) := 7/7 + (((7 + 7) × ((7 + 7)/7) ) − 7) := ((7 + 7) × ((7 + 7)/7)7 ) − 7/7 := 77/7 + (((7 + 7) × ((7 + 7)/7)7 ) − 7) := 8 + (((8 + 8)/8) × (888 + 8/8)) := (8/8 + 8) × (888/8 + 88) := ((8 × 8 × (8 × 8 − 8)) + 8)/((8 + 8)/8) := ((9 + 9)/9) × (((9 + 9)/9) + 9 × 99) := 9 + (9 + 9) × 99 := 9 + (((9 × 9 + 9)/(9 + 9)) + (9 + 9) × 99) 7 Ï 1792 := (1 + 111) × (1 + 1)1+1+1+1 Ï 1787 := 11 + (111 × (1 + 1)1+1+1+1 ) Ï 1797 := 11 × 111 + (((1 + 1) × (1 + 11))1+1 ) := 22 + ((2 × 22 − 2)2 + 2/2) := 2 × (2 × (2 × (222 + 2))) := (((3 + 3) × ((33 × 33 ) + 3)) − 3)/3 := ((3/3 + 3)3 ) + (3 × 3 + 3)3 := 44/4 + 4 × 444 := 4 × (444 + 4) := 4 + ((4 × (444 + 4)) + 4/4) := (((5 + 5)/5) × (55 + 5/5)) − 5 := ((5 + 5)/5)5 × (55 + 5/5) := 5 + (((5 + 5)/5)5 × (55 + 5/5)) := (6 − 6 × 6) × (6 − 66) − (6/6 + 6 + 6) := (6/6 + 6) × (((6 + 6)/6)6+(6+6)/6 ) := (6 − 6 × 6) × (6 − 66) − 6 × 6/(6 + 6) 5 7 7 := 22 + ((2 × 22 − 2)2 + 22/2) := ((3 + 3) × (3 × 3 × 33 + 3)) − 3 := ((7 + 7)/7) + (((7 + 7) × ((7 + 7)/7) ) − 7) := (7 + 7) × ((7 + 7)/7) := (7 × 7 × (7 + 7)) + 7777/7 := 888 + (888 + 88/8) := 8 × ((8 × (8 + 8) + 88) + 8) := ((88/8 + 8) × (88 − 8/8 + 8)) − 8 := (9 + 9) × 99 + ((9 × 9 + 9)/(9 + 9)) := 9 + ((9 + 9) × 99 + 9/9) := 9 + (((9 + 9) × 99 − ((9 + 9 + 9)/9)) + 9) 129 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1798 := (1 + 1) × ((((11 − 1) × (1 + 1 + 1))1+1 ) − 1) Ï 1803 := 1 + ((1 + 1) × (1 + (((11 − 1) × (1 + 1 + 1))1+1 ))) Ï 1808 := (1 + 1)11 − ((1 + 1) × (111+1 − 1)) := ((2 × 22 + 2/2)2 ) − 222 := 2 × (2 × (2 × ((222 + 2) + 2))) := 3 + ((((3/3 + 3) ) + (3 × 3 + 3) ) + 3) := 3 + ((3 + 3) × (3 × 3 × 33 + 3)) := 3 × 33 + ((3 × 3 + 3)3 − 3/3) := 4 + ((4 × (444 + 4)) + (4 + 4)/4) := 44/4 + (4 × (444 + 4)) := 4 × (444 + 4 + 4) := (5 × 5 + 5) × (55 + 5) − (5 + 5)/5 := 5 + ((5 × 5 + 5) × (55 + 5) − ((5 + 5)/5)) := (55/5 + 5) × (555 + 5 + 5)/5 := (6 − 6 × 6) × (6 − 66) − (6 + 6)/6 := 666/6 + (6 × (6 × 6 × 6 + 66)) := 6 + ((6 − 6 × 6) × (6 − 66) + ((6 + 6)/6)) := 22 + (2 × (2 × 2 × 222)) 3 3 := 7 + (((7 + 7) × ((7 + 7)/7) ) − 7/7) := 77/7 + ((7 + 7) × ((7 + 7)/7) ) := (7/7 + 7) × (((7 + 7)/7)7 + 7 × (7 + 7)) := ((8 + 8)/8) × (888 + 88/8) := 88/8 + (8 × ((8 × (8 + 8) + 88) + 8)) := (8 + 8) × ((888 + 8 + 8)/8) := 9 + (((9 + 9) × 99 − ((9 + 9)/9)) + 9) := 9 + ((9 + 9) × 99 + ((99 + 9)/9)) := 9 + ((((9 + 9) × 99 − 9/9) + 9) + 9) 7 Ï 1799 := ((1 + 1) × (((11 − 1) × (1 + 1 + 1))1+1 )) − 1 7 Ï 1804 := (1 + 1) × (11 × (1 + (11 − 1 − 1)1+1 )) Ï 1809 := 1 + ((1 + 1)11 − ((1 + 1) × (111+1 − 1))) := (2 × ((2 × (2 + 2) + 22)2 )) − 2/2 := 2 × (((2 × (2 + 2) + 22)2 ) + 2) := 2 + (((2 − 222 )/2) + 222/2 ) := (3 × 3 + 3)3 + (((3 + 3)3 − 3)/3) := 3 + (((3 + 3) × (3 × 3 × 33 + 3)) + 3/3) := 3 × (3 × (33 × (3 + 3) + 3)) := ((4 − 4/4) + 4) × (4/4 + 4 ) := 44 + (4 × (444 − 4)) := 4/4 + (4 × (444 + 4 + 4)) := (5 × 5 + 5) × (55 + 5) − 5/5 := 5 + ((5 × 5 + 5) × (55 + 5) − 5/5) := 5 + (((5 × 5 + 5) × (55 + 5) − 5/5) + 5) := (6 − 6 × 6) × (6 − 66) − 6/6 := 6 + ((6 − 6 × 6) × (6 − 66) − ((6 + 6)/6)) := (66 + 6/6) × ((66 × 6/(6 + 6)) − 6) := 7 + ((7 + 7) × ((7 + 7)/7)7 ) := 7 + (7777/7 + (7 × 7 × (7 + 7))) := 7 + (((((7 + 7 + 7)/7)7 ) − 7 × (7 × 7 + 7)) + 7) := (8 − 8/8) × ((8 + 8) × (8 + 8) + 8/8) := 8 + (((8 × 8 × (8 × 8 − 8)) + 8)/((8 + 8)/8)) := 8/8 + ((8 + 8) × ((888 + 8 + 8)/8)) := 9 + (((9 + 9) × 99 − 9/9) + 9) := 99/9 × (((9 + 9)/9) + 9 × (9 + 9)) := 9 + ((9 + 9) × 99 + 9 + 9) 4 Ï 1800 := (1 + 1) × (((11 − 1) × (1 + 1 + 1))1+1 ) Ï 1805 := (1 + 1)11 − (1 + ((1 + 1) × 111+1 )) 22/2 2 − (22 + 2)/2 Ï 1810 := (11 − 1) × (1 + (11 + (1 + 1 + 11)1+1 )) := 2 × ((2 × (2 + 2) + 22)2 ) := 2 := (3 + 3) × (3 × 3 × 33 + 3) := 3 × 3 + ((3 × 3 + 3) − (3/3 + 3)) := 3/3 + ((3 × 3 + 3)3 + 3 × 33 ) := 4 + ((4 × (444 + 4)) + 4) := 44 + ((4 × (444 − 4)) + 4/4) := (4 + 4)/4 + (4 × (444 + 4 + 4)) := (5 × 5 + 5) × (55 + 5) := 5 + (5 × 5 + 5) × (55 + 5) := 5 + ((5 × 5 + 5) × (55 + 5) + 5) := (6 − 6 × 6) × (6 − 66) := 6 + ((6 − 6 × 6) × (6 − 66) − 6/6) 3 := 2 + ((2 × 22 − 2)2 + 2 × 22) 3 7 := (6 − 6/6) × (6 × (66 − 6) + ((6 + 6)/6)) := 7 + (((7 + 7) × ((7 + 7)/7) ) + 7/7) := 7 + ((((7 + 7) × ((7 + 7)/7) ) − 7/7) + 7) := 7 + (((7 + 7) × ((7 + 7)/7)7 ) + (77/7)) := 8 + (8 × ((8 × (8 + 8) + 88) + 8)) := (88/8 + 8) × (88 − 8/8 + 8) := ((8 + 8)/8) × ((888 + 8/8 + 8) + 8) := 9 + ((9 + 9) × 99 + 9) := (9 + 9) × 99 + ((99 + 99 + 9)/9) := 9 + ((((9 + 9) × 99 + 9/9) + 9) + 9) 7 Ï 1801 := 1 + ((1 + 1) × (((11 − 1) × (1 + 1 + 1))1+1 )) := 2/2 + (2 × ((2 × (2 + 2) + 22)2 )) := 3/3 + ((3 + 3) × (3 × 3 × 33 + 3)) Ï 1806 := (1 + 1)11 − ((1 + 1) × 111+1 ) := 2 22/2 Ï 1811 := 11 + ((1 + 1) × (((11 − 1) × (1 + 1 + 1))1+1 )) 2 − 22 /2 3 := 3 × (((33/3) ) − 3 3+3 := 22/2 + (2 × ((2 × (2 + 2) + 22)2 )) ) 4 := 3 + (((3 × 3 + 3)3 − 3/3) + 3 × 33 ) := 4 + (((4 × (444 + 4)) + 4/4) + 4) := ((4 − 4/4) + 4) × ((4 + 4)/4 + 4 ) := 4 + ((4 × (444 + 4 + 4)) − 4/4) := 5/5 + (5 × 5 + 5) × (55 + 5) := 5 + ((5 × 5 + 5) × (55 + 5) + 5/5) := 55/5 + (5 × 5 + 5) × (55 + 5) := 6/6 + (6 − 6 × 6) × (6 − 66) := 6 + (6 − 6 × 6) × (6 − 66) := 66/6 + (6 − 6 × 6) × (6 − 66) 7 7 := 7 + (((7 + 7) × ((7 + 7)/7) ) + ((7 + 7)/7)) := 7 + (((7 + 7) × ((7 + 7)/7) ) + 7) := 777 + (7777/7 − 77) := 8 + ((8 × ((8 × (8 + 8) + 88) + 8)) + 8/8) := 8 + (((8 + 8)/8) × (888 + 88/8)) := 8 + ((8 × ((8 × (8 + 8) + 88) + 8)) + (88/8)) := 9 + (((9 + 9) × 99 + 9/9) + 9) := ((9 + 9)/9) × (((99 + 9)/9) + 9 × 99) := 9 + (((9 + 9) × 99 + (99/9)) + 9) Ï 1802 := (1 + 1) × (1 + (((11 − 1) × (1 + 1 + 1))1+1 )) Ï 1807 := 1 + ((1 + 1)11 − ((1 + 1) × 111+1 )) Ï 1812 := (1 + 1 + 1) × (11 × (111 − 1)/(1 + 1) − 1) := 2 + (2 × ((2 × (2 + 2) + 22)2 )) := 222/2 + ((2 − 222 )/2) := 2 × ((2 × (2 × ((222 + 2) + 2))) + 2) := 3 + ((((3 + 3)3 − 3)/3) + (3 × 3 + 3)3 ) := 3/3 + (((3 × 3 + 3)3 − 3) + 3 × 33 ) := 3 + ((3 × 3 + 3)3 + 3 × 33 ) := (44 − 4)/4 + (4 × (444 + 4)) := (4 × (444 + 4 + 4)) − 4/4 := 4 + (4 × (444 + 4 + 4)) := (5 + 5)/5 + (5 × 5 + 5) × (55 + 5) := 5 + ((5 × 5 + 5) × (55 + 5) + ((5 + 5)/5)) := (5/5 + 5) × ((5 × (55 + 5)) + ((5 + 5)/5)) := (6 + 6)/6 + (6 − 6 × 6) × (6 − 66) := 6 + ((6 − 6 × 6) × (6 − 66) + 6/6) := 6 + ((6 − 6 × 6) × (6 − 66) + 6) 7 7 := 7 + ((((7 + 7 + 7)/7) ) − 7 × (7 × 7 + 7)) := 7 + ((((7 + 7) × ((7 + 7)/7) ) + 7/7) + 7) := (7 × (7 × 7 × 7 − 77 − 7)) − 7/7 := 8 + (((8 + 8)/8) × (888 + 8/8 + 8)) := 8 × 88 + (8888/8 − 8) := ((88 + 8)/8) × ((88 − 8/8) + 8 × 8) := 9 + ((9 + 9) × 99 + (99/9)) := 9 + ((((9 + 9) × 99 − ((9 + 9)/9)) + 9) + 9) := 9 + (((9 + 9) × 99 + ((99 + 9)/9)) + 9) 130 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1813 := (1 + 1)11 − (11 + ((1 + 1) × (1 + 111))) Ï 1818 := 1 + ((1 + 1)11 − (11 × (11 + (11 − 1)))) Ï 1823 := (1 + 1)11 − (1 + ((1 + 1) × (1 + 111))) := (2 × 22)2 − ((22/2)2 + 2) := ((2 × (22 + 2))2 ) − (222 + 2) := (2 × 22)2 − (222/2 + 2) := 3 + (((3 × 3 + 3)3 + 3 × 33 ) + 3/3) := 33+3 + 33 × 33 := 3 × 33 + ((3 × 3 + 3)3 − (3/3 + 3)) := 4 + ((4 × (444 + 4 + 4)) + 4/4) := 44 + (4 × 444 − (4 + 4)/4) := 4 + ((4 × 444 − 4/4) + 44) := (5 × (5 × (55 + 5))) + (55 + 5)/(5 + 5) := (5/5 + 5) × ((55 + 5)/(5 + 5) − (5 + 5)) := ((5/5 + 5) × (55 + 5)/(5 + 5)) − 55 := 6 + (((6 − 6 × 6) × (6 − 66) + 6/6) + 6) := 6 + (((6 − 6 × 6) × (6 − 66) + 6) + 6) := 6 + (((6 − 6 × 6) × (6 − 66) + (66/6)) + 6) := 7 × (7 × 7 × 7 − 77 − 7) := (77/7 + 7) × (7777/77) := 77 + ((77/7 + 7) × (7 × (7 + 7) − 7/7)) := 8 + ((88/8 + 8) × (88 − 8/8 + 8)) := 8 + (((8 + 8)/8) × ((888 + 8/8 + 8) + 8)) := 8 + (8888/8 + 8 × 88) := 9 + (((99 + 99)/9) + (9 + 9) × 99) := (9 + 9) × ((9 + 9)/9 + 99) := (9 + 9) × 99 + ((9 × 9 × 9 + 9)/(9 + 9)) Ï 1814 := (11 × (11 × (1 + 1 + 1 + 1 + 11))) − 1 Ï 1819 := 1 + (1 + ((1 + 1)11 − (11 × (11 + (11 − 1))))) Ï 1824 := (1 + 1)11 − ((1 + 1) × (1 + 111)) := 22 + (2 × (2 × (2 × (222 + 2)))) := 2 + (((2 × 22)2 − (22/2)2 ) + 2) := 222/2 − (222 + 2) := ((33 × ((3 + 3) × 33 + 3)) − 3)/3 := 3/3 + (33 × 33 + 33+3 ) := 3 × 33 + ((3 × 3 + 3)3 − 3) := 4 + ((4 × (444 + 4 + 4)) + (4 + 4)/4) := 44 + (4 × 444 − 4/4) := 4 + (4 × 444 + 44) 5 5 5−5/5 := 55 + ((55 × ((5 + 5)/5) ) − 5/5) := 5 − ((((5/5 + 5) := 6 + (((6 − 6 × 6) × (6 − 66) + ((6 + 6)/6)) + 6) := (66/6 + 6) × (6 × (6 + 6 + 6) − 6/6) := 7/7 + (7 × (7 × 7 × 7 − 77 − 7)) ) + 5) + 5) := 55 − (((5/5 + 5)5−5/5 ) + 5) := 66 + ((6 × 6 + 6) × (6 × 6 + 6) − 6) := 7 + ((7 × (7 × 7 × 7 − 77 − 7)) − 7/7) := (7 × 7 − 7/7) × (7 × 7 − 77/7) := 8 × 88 + (8888 − 8)/8 := (8/8 + 8 + 8) × ((88/8 + 88) + 8) := (88 + 8) × (88/8 + 8) := 9 + (((99 + 99 + 9)/9) + (9 + 9) × 99) := 9/9 + ((9 + 9) × ((9 + 9)/9 + 99)) := ((99 + 9)/9) × (9 × (9 + 9) − (9/9 + 9)) Ï 1815 := 11 × (11 × (1 + 1 + 1 + 1 + 11)) Ï 1820 := (11 − 1) × ((1 + 1 + 11) × (1 + (1 + 1 + 11))) Ï 1825 := (1 + 1)11 − (1 + (1 + 1) × 111) := (2 × 22)2 − (22/2)2 := 2 × ((2 × 2 × 222) + 22) := (2 × 22)2 − 222/2 := 33 + (3 × 3 × 33 × (3 + 3)) := 3 + ((33 × 33 − 3/3) + 33+3 ) := 3/3 + (((3 × 3 + 3)3 − 3) + 3 × 33) := 44 + 4 × 444 := 44 × 44 − 444/4 := 44 + (4 × 444 − (4/4 + 4)) 5 := (5 × (5 × (5 × (5 + 5 + 5)))) − 55 := 55 + (55 × ((5 + 5)/5) ) 6 := 5 × ((5/5 + 5) × (55 + 5) + 5) := (6 × 6 − 6/6) × (((6 + 6)/6) − (6 + 6)) := (6 − 6/6) × ((6 × (66 − 6) − 6/6) + 6) := (7/7 + 7 + 7) × (((7 + 7)/7) − 7) := 7 + (7 × (7 × 7 × 7 − 77 − 7)) := 7 + ((77/7 + 7) × (7777/77)) := 8 × 88 + 8888/8 := (8 − 8/8) × ((8 × 8 × 8 + 8)/((8 + 8)/8)) := 8/8 + ((88 + 8) × (88/8 + 8)) := (99/9 + 9) × ((9/9 + 9 × 9) + 9) := ((9 + 9) × (999/9 − 9)) − 99/9 := (6 − 6/6) × 66 × 66/(6 + 6) 7 := 99/9 × (((9 + 9 + 9)/9) + 9 × (9 + 9)) Ï 1826 := (1 + 1)11 − (1 + 1) × 111 Ï 1816 := 1 + (11 × (11 × (1 + 1 + 1 + 1 + 11))) Ï 1821 := (1 + 1)11 − (1 + ((1 + 1) × (1 + 1 + 111))) := 2 × (((2 × 2 × 222) − 2) + 22) := 2/2 + (2 × ((2 × 2 × 222) + 22)) := 222/2 − 222 := ((33 × ((3 + 3) × 33 + 3)) + 3)/3 := 3 + (33 × 33 + 33+3 ) := 3 × 33 + ((3 × 3 + 3)3 − 3/3) := 44 + (4 × 444 − 4) := 44 + (4 × 444 + 4/4) := 44 × 44 + ((4 − 444)/4) := 5 + ((5 × 5 + 5) × (55 + 5) + (55/5)) := 5 + (((5 − (5 + 5 ))/5) − 55) := 55 − ((5 − 5/5)5 + 5 × 55) := ((6 + 6)/6 + 6) × (6 × 6 × 6 + 66/6) := 6 + ((6 − 6/6) × 66 × 66/(6 + 6)) := (((6 + 6)/6)66/6 ) − (6 × 6 × 6 + 6) := 7/7 + ((7/7 + 7 + 7) × (((7 + 7)/7)7 − 7)) := 7 + ((7 × (7 × 7 × 7 − 77 − 7)) + 7/7) := 777/7 + (7 × (7 × (7 × 7 − (7 + 7)))) := 88 + 8 × (8 × (8 + 8) + 88) := 8 + (((88/8 + 8) × (88 − 8/8 + 8)) + 8) := (8 + 8)/8 + ((88 + 8) × (88/8 + 8)) := 9 × 9 × 9 + (((99 × 99) − (9 + 9))/9) := 9 + ((((9 + 9) × 99 + ((99 + 9)/9)) + 9) + 9) := 9 + ((((99 × 99) − 9)/9) + 9 × 9 × 9) Ï 1817 := (1 + 1)11 − (11 × (11 + (11 − 1))) 5 5 5 Ï 1822 := (1 + 1)11 − ((1 + 1) × (1 + 1 + 111)) Ï 1827 := 1 + ((1 + 1)11 − (1 + 1) × 111) := 2 + ((2 × 22)2 − (22/2)2 ) := 222 + (2 × (22 − 2))2 := (((2 × 22) − 2/2)2 ) − 22 := 33+3 + (33 × 33 − 3/3) := 3 + ((33 × 33 + 33+3 ) + 3/3) := 3 × 33 + (3 × 3 + 3)3 := 44 + ((4 × 444 − 4) + 4/4) := 44 + (4 × 444 + (4 + 4)/4) := (4 − 4/4) × ((4/4 + 4)4 − 4 × 4) := 5 × 5 + (((5 + 5)/5)5 × (55 + 5/5)) := 5 + ((((5 + 5)/5)5 × (55 + 5/5)) + 5 × 5) := (5 − (5 + 5)/5) × (((55 − 55)/5) − 5) := 6 + ((6 − 6 × 6) × (6 − 66) + (66/6)) := 6 + (((6 + 6)/6 + 6) × (6 × 6 × 6 + 66/6)) := 6 + (((6 − 6/6) × 66 × 66/(6 + 6)) + 6) 7 := ((7 × 7 − 7/7) × (7 × 7 − 77/7)) − 7 := 7 + ((7/7 + 7 + 7) × (((7 + 7)/7) − 7)) := 8/8 + (8 × (8 × (8 + 8) + 88) + 88) := 8 + ((8888 − 8)/8 + 8 × 88) := (8/8 + 8) × (8 × (8 + 8 + 8) + (88/8)) := 9 × 9 × 9 + (((99 × 99) − 9)/9) := 9 × 9 × 9 + (9999/9 − (9 + 9)) := 9 + ((9 + 9) × ((9 + 9)/9 + 99)) 131 := 7 + ((7 × (7 × 7 × 7 − 77 − 7)) + 7) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1828 := (1 + 1)11 − ((1 + 1) × (111 − 1)) Ï 1833 := (1 + 1 + 1) × (1 + 11 × 111)/(1 + 1) Ï 1838 := 111 + (((1 + 11)1+1+1 ) − 1) := 2 + (222/2 − 222) := (((2 × 22) − 2/2)2 ) − 22+2 := (((2 × 22) − 2/2)2 ) − 22/2 := 3/3 + ((3 × 3 + 3)3 + 3 × 33) := (3 × ((3 + 3) × (3 × 33 + 3))) − 3 := (3 × 3 + 3)3 + ((333 − 3)/3) := 4 + ((4 × 444 + 44) + 4) := ((44 − 4/4)(4+4)/4 ) − 4 × 4 := 4 × 444 + (44 − 4 − 4)/4 := 55 − (((5/5 + 5)5−5/5 ) + 5/5) := 5 + (55 − (((5/5 + 5)5−5/5 ) + 5/5)) := 5 × 55 + ((55 + 5/5)/((5 + 5)/5)) := ((6 + 6)/6)6 + (6 × 6 + 6) × (6 × 6 + 6) := 6 × 6 × (66 − 6 − 6) − 666/6 := 6 + ((((6 + 6)/6)66/6 ) − 6 × 6 × 6) := 7 + (((7 × (7 × 7 × 7 − 77 − 7)) + 7/7) + 7) := 7 + ((7 × (7 × (7 × 7 − (7 + 7)))) + 777/7) := 7 + (((7 × 7 − 7/7) × (7 × 7 − 77/7)) + 7) := ((8 × (8 × (8 × 8 − 8) + 8)) + 8)/((8 + 8)/8) := 8 + (((88 + 8) × (88/8 + 8)) + 8/8) := 8 × 8 + (((8 + 8)/8) × (888 − 8/8)) := 9 + (((9 + 9) × ((9 + 9)/9 + 99)) + 9/9) := (9 + 9) × (99 + 9) − 999/9 := 9 × 9 × 9 + ((9999 − (9 + 9))/9) Ï 1829 := 1 + ((1 + 1)11 − ((1 + 1) × (111 − 1))) Ï 1834 := (1 + (1 + 1 + 11)) × ((11 × (1 + 11)) − 1) Ï 1839 := 111 + ((1 + 11)1+1+1 ) := 2 + ((((2 × 22) − 2/2)2 ) − 22) := 2 + (2 × (2 × (222 − (22 + 2 + 2)))) := 2 + (22/2 × (((22/2 + 2)2 ) − 2)) := ((33 × 333 + 3)/(3 + 3)) − 3 := 3 + ((33 × 333 − 3)/(3 + 3)) := 3 + (3 × ((3 + 3) × (3 × 33 + 3))) := 4 + (44 × 44 − 444/4) := 44 + ((4 × (444 + 4)) − (4 + 4)/4) := 4 × 444 + ((44 − 4)/4) := 55 − ((5/5 + 5)5−5/5 ) := 5 + (55 − ((5/5 + 5)5−5/5 )) := 5 + ((55 − ((5/5 + 5)5−5/5 )) + 5) := (6 + 6 + 6) × (6 × 6 + 66) − (6 + 6)/6 := 666/6 + (6 × 6 × (6 × 6 + 6 + 6)) := 7 + (((7/7 + 7 + 7) × (((7 + 7)/7) − 7)) + 7) := 7 × ((((7 × 7 × 77) − 7)/(7 + 7)) − 7) := 777 + (7777/7 − 7 × 7) := 8 × 8 + ((888 − 88/8) + 888) := 8 + (((88 + 8) × (88/8 + 8)) + ((8 + 8)/8)) := 8 × 8 + ((888 − 8/8) + 888) := 9 + ((99/9 + 9) × ((9/9 + 9 × 9) + 9)) := ((9 + 9)/9) × (999 − (9/9 + 9 × 9)) := 9 × 9 × 9 + ((9999 − 9)/9) := 66 + ((6 × 6 + 6) × (6 × 6 + 6) − 6/6) 7 Ï 1830 := (1 + 1 + 1) × (11 × 111 − 1)/(1 + 1) Ï 1835 := 1 + (1 + 1 + 1 + 11) × (11 × (1 + 11) − 1) Ï 1840 := 1 + (111 + ((1 + 11)1+1+1 )) := 2 + ((222/2 − 222) + 2) := 2 + ((((2 × 22) − 2/2)2 ) − 22+2 ) := 2 × (2 × (222 − (22 + 2))) := 3 + ((3 × 3 + 3)3 + 3 × 33) := 3 + ((33 × 333 + 3)/(3 + 3)) := 33+3 + 3333/3 := 4 + (((4 − 444)/4) + 44 × 44) := 44 + ((4 × (444 + 4)) − 4/4) := 4 × (444 + 4 × 4) 5 := (5/5 + 5) × ((5 × (55 + 5)) + 5) := 5 × ((5 − 5)/(5 + 5) + 55) := 5 × ((55 + 5)/(5 + 5) + 55) := 66 + (6 × 6 + 6) × (6 × 6 + 6) := (6 + 6 + 6) × (6 × 6 + 66) − 6/6 := ((6 × 6/(6 + 6))6 ) + (6666/6) := (7 − 7/7) × (7 × (7 × 7 − 7) + (77/7)) := 7 × 77 + (7 − 7/7)77/7−7 := 77 + (((7 + 7) × (77 + 7 × 7)) − 7/7) := (8 − 8/8 + 8) × ((888 + 88)/8) := 88/8 + ((88 + 8) × (88/8 + 8)) := 8 × 8 + (888 + 888) := 9 × 9 × 9 + (((9999 − 9)/9) − 9) := ((9 + 9) × (999/9 − 9)) − 9/9 := 9 × 9 × 9 + 9999/9 Ï 1831 := ((11 × (1 + 1 + 1) × 111) − 1)/(1 + 1) Ï 1836 := (1 + 11) × ((11 × (1 + (1 + 1 + 11))) − 1) Ï 1841 := 1 + (1 + (111 + ((1 + 11)1+1+1 ))) := 2 + (((((2 × 22) − 2/2)2 ) − 22) + 2) := 2 × ((2 × (2 × (222 + 2))) + 22) := (((2 × 22) − 2/2)2 ) − 2 × (2 + 2) := (33 × 333 − 3)/(3 + 3) := 3 × ((3 + 3) × (3 × 33 + 3)) := 33+3 + ((3333 + 3)/3) := 44 + (4 × 444 + 44/4) := 44 + (4 × (444 + 4)) := 4/4 + (4 × (444 + 4 × 4)) 5 5 5 := 5 + (5 − ((5 − 5/5) + 5 × 55)) := 5/5 + (5 × ((5 − 5)/(5 + 5) + 55)) := 5/5 + (5 × ((55 + 5)/(5 + 5) + 55)) := 66 + ((6 × 6 + 6) × (6 × 6 + 6) + 6/6) := (6 + 6 + 6) × (6 × 6 + 66) := 6 + ((6 + 6 + 6) × (6 × 6 + 66) − 6/6) := 7 + ((7 × 7 − 7/7) × (7 × 7 − 77/7)) := (77 + 7)/7 × ((77 − 7/7) + 77) := 7 × ((((7 + 7)/7)7+7/7 ) + 7) := 8 + ((8888/8 + 8 × 88) + 8) := ((88 + 8)/8) × ((8 × 8 + 88) + 8/8) := 8/8 + ((888 + 888) + 8 × 8) := 9 × 9 × 9 + (9999/9 − 9) := (9 + 9) × (999/9 − 9) := 9 × 9 × 9 + (9999 + 9)/9 Ï 1832 := (1 + (11 × (1 + 1 + 1) × 111))/(1 + 1) Ï 1837 := 11 × ((1 + 1 + 11)1+1 − (1 + 1)) Ï 1842 := 1 + (1 + (1 + (111 + ((1 + 11)1+1+1 )))) := 2 × (2 × (222 − (22 + 2 + 2))) := 22/2 × (((22/2 + 2)2 ) − 2) := 2 + (2 × (2 × (222 − (22 + 2)))) := (33 × 333 + 3)/(3 + 3) := 3/3 + (3 × ((3 + 3) × (3 × 33 + 3))) := (3 × (3 × (3 + 3)3 − 33)) − 3 := 44 + ((4 × (444 + 4)) − 4) := 44 + ((4 × (444 + 4)) + 4/4) := (4 + 4)/4 + (4 × (444 + 4 × 4)) 5 5 := ((5 + 5)/5) + (5 × 5 + 5) × (55 + 5) := 5 × 55 + ((5 − 5/5)/((5 + 5)/5)) := (5/5 + 5) × (55 − 55)/(5 + 5) := (((6 + 6)/6)66/6 ) − 6 × 6 × 6 := 6/6 + (6 + 6 + 6) × (6 × 6 + 66) := 6 + (6 + 6 + 6) × (6 × 6 + 66) 7 7 := (((7/7 − 7) + 7 × 7)(7+7)/7 ) − 7 := 77 + ((7 − 7/7 + 7) × (((7 + 7)/7) + 7)) := (((7 + 7 + 7)/7) ) − (7 × 7 × 7 + 7) := 8 + ((88 + 8) × (88/8 + 8)) := 88/8 × ((888/8 − 8) + 8 × 8) := 8 × 8 + (((8 + 8)/8) × (888 + 8/8)) := 9 × 9 × 9 + ((9999 + 9)/9 − 9) := 9/9 + ((9 + 9) × (999/9 − 9)) := 9 + ((9 + 9) × (99 + 9) − 999/9) 132 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1843 := 111+1+1 + (1 + 1)11−1−1 2 Ï 1848 := 11 × ((1 + 1 + 11)1+1 − 1) Ï 1853 := 1 + ((1 + 1) × ((1 + 11111)/(1 + 11))) := (((2 × 22) − 2/2) ) − (2 + 2 + 2) := 2 × (2 × (22 − 22)) := 2 + ((((2 × 22) − 2/2)2 ) + 2) := 3 + (3333/3 + 33+3 ) := 3 + (3 × (3 × (3 + 3)3 − 33)) := (3 × 3 + 3)3 + ((3 − 3/3 + 3)3 ) := 4 + (4 × 444 + ((44 − 4)/4)) := 44 × (44 − (4 + 4)/4) := 4 + ((44 − 4/4)(4+4)/4 ) := (5 × (5 × (5 × (5 + 5 + 5)))) − ((5 + 5)/5)5 := (5/5 + 5) × ((55 + 5)/(5 + 5) − 5) := 5 + ((5/5 + 5) × ((55 + 5)/(5 + 5) − 5)) := (((6 × 6 + 6/6) + 6)(6+6)/6 ) − 6 := 66 × (((66 + 66)/6) + 6) := 666 + ((66 × (6 + 6 + 6)) − 6/6) := ((7 + 7)/7) + (7 × (7 × (7 × 7 − (7 + 7)))) := 77 × (((77 − 7)/7 + 7) + 7) := 777 + (77 × (7 + 7) − ((7 + 7)/7)) := (88/8 + 8) × ((8/8 + 88) + 8) := 88 × ((88 + 8 + 8)/8 + 8) := (8/8 + 8 + 8) × ((888 − (8 + 8))/8) := (9/9 + 9 + 9) × (99 − ((9 + 9)/9)) := 9 + (((9999 − 9)/9) + 9 × 9 × 9) := 9 × 9 + ((9 + 9) × 99 − (9/9 + 9)) 7 Ï 1844 := 1 + (111+1+1 + (1 + 1)11−1−1 ) 2 Ï 1849 := (((1 + 1) × (11 + 11)) − 1)1+1 2 Ï 1854 := (1 + 1) × (1 + ((1 + 11111)/(1 + 11))) := 2 × ((2 × (222 − 22)) − 2) := ((2 × 22) − 2/2) := 2 + (2 × ((2 × (222 − 22)) + 2)) := (3 × 33+3 ) − (((3/3 + 3) + 3)3 ) := ((3 × 3 + 33) + 3/3)3−3/3 := (3 × 33+3 ) − 333 := 4 + (4 × (444 + 4 × 4)) := (44 − 4/4)(4+4)/4 := 4 + (((44 − 4/4)(4+4)/4 ) + 4/4) := (5 − 5/5)5 + ((55 × (5 + 5 + 5)) − 5) 5 := (5 − 5/5) + (55 × (5 + 5 + 5)) (6+6)/6 := 5 + ((55 × (5 + 5 + 5)) + (5 − 5/5)5 ) := 6 + (((((6 + 6)/6)66/6 ) − 6 × 6 × 6) + 6) := ((6 × 6 + 6/6) + 6) := (((7 + 7 + 7)/7)7 ) − 7 × 7 × 7 := ((7/7 − 7) + 7 × 7)(7+7)/7 := 777 + (77 × (7 + 7) − 7/7) := 8 + (((88 + 8)/8) × ((8 × 8 + 88) + 8/8)) := 8/8 + ((8 × (8 × (8 + 8) − 8)) + 888) := 888 + ((88 × 88 − (8 + 8))/8) := (9 + 9) × (99 + 9) − (9/9 + 99) := 9 + (9999/9 + 9 × 9 × 9) := 9 × 9 + ((9 + 9) × 99 − 9) Ï 1845 := (1 + 1 + 1) × (11 × (1 + 111)/(1 + 1) − 1) Ï 1850 := 1 + ((((1 + 1) × (11 + 11)) − 1)1+1 ) := 666 + (66 × (6 + 6 + 6)) Ï 1855 := (11 × (1 + 1 + 11)1+1 ) − 1 − 1 − 1 − 1 := (((2 × 22) − 2/2)2 ) − 2 − 2 := 2 + (2 × (2 × (222 − 22))) := 2 + (((((2 × 22) − 2/2)2 ) + 2) + 2) := 3 × (3 × (3 + 3)3 − 33) := (3 × 3 + 3)3 + ((33+3 + 3)/(3 + 3)) := 3/3 + ((3 × 33+3 ) − 333) := ((44 − 4/4)(4+4)/4 ) − 4 := 4/4 + ((44 − 4/4)(4+4)/4 ) := 44 × 44 − (4 − 4/4)4 := (5 × ((5 × (5 × (5 + 5 + 5))) − 5)) − 5 := 5 × ((5 × (5 × (5 + 5 + 5))) − 5) := 5 + (5 × ((5 × (5 × (5 + 5 + 5))) − 5)) := (6 − 6/6) × (66 × 66/(6 + 6) + 6) := 6/6 + (((6 × 6 + 6/6) + 6)(6+6)/6 ) := 6 + (((6 × 6 + 6/6) + 6)(6+6)/6 ) := 7/7 + ((((7 + 7 + 7)/7)7 ) − 7 × 7 × 7) := 7/7 + (((7/7 − 7) + 7 × 7)(7+7)/7 ) := 777 + 77 × (7 + 7) := 888 + (88/8 × (88 − 8/8)) := 8 + ((((8 + 8)/8) × (888 + 8/8)) + 8 × 8) := 888 + ((88 × 88 − 8)/8) := (9 + 9) × (99 + 9) − 99 := 9 + ((9999 + 9)/9 + 9 × 9 × 9) := 9/9 + (((9 + 9) × 99 − 9) + 9 × 9) Ï 1846 := (1 + 1 + 11) × ((1 + 11)1+1 − (1 + 1)) Ï 1851 := 1 + (1 + ((((1 + 1) × (11 + 11)) − 1)1+1 )) Ï 1856 := (11 × (1 + 1 + 11)1+1 ) − 1 − 1 − 1 := 2 × (2 × 222 + 222 ) := (2 × (2 × (222 − 22))) − 2 := 2 + (((2 × 22) − 2/2)2 ) := 3/3 + (3 × (3 × (3 + 3)3 − 33)) := (3 × 33+3 ) − (333 + 3) := ((3/3 + 3)3 ) × ((33 − 3/3) + 3) := 4 + ((4 × (444 + 4 × 4)) + (4 + 4)/4) := 44/4 + (4 × (444 + 4 × 4)) := 4 × ((444 + 4 × 4) + 4) := ((55 × 555/5) + 55 )/5 := 5/5 + (5 × ((5 × (5 × (5 + 5 + 5))) − 5)) := (55/5 + 5) × (555/5 + 5) := 6 + (((6 × 6/(6 + 6))6 ) + (6666/6)) := ((66/6 + 6) × 666/6) − 6 × 6 := ((6 + 6)/6)6 × (6 × 6 − (6/6 + 6)) := ((7 + 7)/7) × ((77 × (77 + 7) − 7)/7) := 7 + ((((7 + 7 + 7)/7)7 ) − 7 × 7 × 7) := 7 + (((7/7 − 7) + 7 × 7)(7+7)/7 ) := 8 + ((((8 + 8)/8) × (888 − 8/8)) + 8 × 8) := 8 + ((88/8 + 8) × ((8/8 + 88) + 8)) := 8 × (((8 × (8 + 8) + 88) + 8) + 8) := 9/9 + ((9 + 9) × (99 + 9) − 99) := 9 × 9 + ((9 + 9) × 99 − ((99 + 9)/9)) := 9 × 9 + (((9 + 9) × 99 − 9) + ((9 + 9)/9)) Ï 1857 := (11 × (1 + 1 + 11)1+1 ) − 1 − 1 Ï 1847 := (11 × ((1 + 1 + 11)1+1 − 1)) − 1 Ï 1852 := (1 + 1) × ((1 + 11111)/(1 + 11)) := (((2 × 22) − 2/2)2 ) − 2 := 2 × ((2 × (222 − 22)) + 2) := 2 × (2 + 2) + (((2 × 22) − 2/2)2 ) := 3 + ((3 × 33+3 ) − (((3/3 + 3) + 3)3 )) := 3 + (((3 × 3 + 33) + 3/3)3−3/3 ) := 3 + ((3 × 33+3 ) − 333) := (44 × (44 − (4 + 4)/4)) − 4/4 := 4 + (44 × (44 − (4 + 4)/4)) := 4 × 444 + (4 − 4/4)4 := 5 + ((5/5 + 5) × (55 − 55)/(5 + 5)) := (5 + 5)/5 + (5 × ((5 × (5 × (5 + 5 + 5))) − 5)) := (5 − (5 + 5)/5) × ((55 − 5)/5 − 5) := 66/6 + (6 + 6 + 6) × (6 × 6 + 66) := 666 + ((66 × (6 + 6 + 6)) − ((6 + 6)/6)) := 6 + (((66/6 + 6) × 666/6) − 6 × 6) := 777 + (77 × (7 + 7) − (7/7 + 7)) := ((7 − 77)/7) + (7 × (7 × 7 × 7 − 77)) := ((7 + 7)/7) + (77 × (7 + 7) + 777) := 888 + ((8 × (8 × (8 + 8) − 8)) − 8/8) := 88 × (8 + 8) + 888/((8 + 8)/8) := 888 + ((88 × 88 + 8)/8) := (9 + 9)/9 + ((9 + 9) × (99 + 9) − 99) := 9 × 9 + ((9 + 9) × 99 − (99/9)) := 9 + ((((9999 − 9)/9) + 9 × 9 × 9) + 9) 133 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1858 := (11 × (1 + 1 + 11)1+1 ) − 1 Ï 1863 := (1 + (11 + 11)) × (11 − 1 − 1)1+1 Ï 1868 := (11 × (1 + (1 + 1 + 11)1+1 )) − 1 − 1 := 2 + (2 × (2 × 222 + 222 )) := (22 + 2/2) × ((2/2 + 2)2+2 ) := 2 × ((2 × (2 × 222 + 22)) + 2) := 3 + (((3 × 33+3 ) − 333) + 3/3) := 3 × (3 × ((3 + 3)3 − 3 × 3)) := ((33 − 3) × (3 × 33 − 3)) − (3/3 + 3) := 4/4 + (4 × 444 + (4 − 4/4)4 ) := (4 − 4/4) × ((4/4 + 4)4 − 4) := (44 × (4 + 4)) − (4 × 44 + 4) := ((5 − (5 + 5)/5) × ((55 + 5)/5 − 5)) − 5 := (5 − (5 + 5)/5) × ((55 + 5)/5 − 5) := 5 + ((5 − (5 + 5)/5) × ((55 + 5)/5 − 5)) := ((6 + 6)/6)6 + ((6 − 6 × 6) × (6 − 66) − 6) := (6 × (6 × (66 + 6))) − ((6 × 6/(6 + 6))6 ) := (6 × (6 − 6 × 6)) + (((6 + 6)/6)66/6 ) := 7 + (((((7 + 7 + 7)/7)7 ) − 7 × 7 × 7) + 7) := 7/7 + (7 × (7 × 7 × 7 − 77)) := 7 + ((7 × (7 × 7 × 7 − 77)) − 7/7) := 888 + (88 × 88 + 8 + 8)/8 := 8 + (((88 × 88 − 8)/8) + 888) := 88 + (((8 + 8)/8) × (888 + ((8 + 8)/8))) := 9 + ((9999/9 + 9 × 9 × 9) + 9) := 9 × (99 + 99 + 9) := (((9 + 9)/9)99/9 ) − (99 + 9 × 9) Ï 1859 := 11 × (1 + 1 + 11)1+1 Ï 1864 := 1 + ((1 + (11 + 11)) × (11 − 1 − 1)1+1 ) := 22/2 × ((22/2 + 2)2 ) Ï 1869 := (11 × (1 + (1 + 1 + 11)1+1 )) − 1 := 22 + ((((2 × 22) − 2/2)2 ) − 2) := 2 × (2 × (2 × 222 + 22)) 3 := 3 + (((3/3 + 3)3 ) × ((33 − 3/3) + 3)) := 3/3 + (3 × (3 × ((3 + 3) − 3 × 3))) := ((33 − 3) × (3 × 33 − 3)) − 3 := 4 + (44 × 44 − (4 − 4/4)4 ) := 44 + (4 × 444 + 44) := ((4 − 44 )/4) + (44 × 44 − 4) := (((5 + 5 + 5) × (55 /5 − 5)) − 5)/5 := 66/6 × ((6/6 + 6 + 6)(6+6)/6 ) 5 5 5 := 5 − (((55 + 5 ) + 5 )/5) := 55 − (((55 + 55 + 5)/5) + 5) 6 := ((6 + 6)/6) + (6 − 6 × 6) × (6 − 66) := 66 × (6 × 6 − 6) − 666/6 := ((7 + 7)/7) + (7 × (7 × 7 × 7 − 77)) := 7 + (7 × (7 × 7 × 7 − 77)) := 88/8 × ((88 − 8 + 88) + 8/8) := 88 + (888 + 888) := (8 − 8/8) × ((8 + 8) × (8 + 8) + (88/8)) := 99/9 × ((9 × (9 + 9) − ((9 + 9)/9)) + 9) := 9/9 + ((9 + 9) × 99 + 9 × 9) := 99 + ((9 + 9) × 99 − ((99 + 9)/9)) := 77/7 × ((7 − 7/7 + 7) (7+7)/7 ) Ï 1860 := 1 + (11 × (1 + 1 + 11)1+1 ) Ï 1865 := 1 + (1 + ((1 + (11 + 11)) × (11 − 1 − 1)1+1 )) Ï 1870 := 11 × (1 + (1 + 1 + 11)1+1 ) := 2 × ((2 × 222 + 222 ) + 2) := 22+2 + (((2 × 22) − 2/2)2 ) := 22 + (2 × (2 × (222 − 22))) := (3 × (3 × ((3 + 3)3 − 3 × 3))) − 3 := 3 + ((((3 × (3 + 3))3 − 3)/3) − 3 × 33 ) := 3/3 + (((33 − 3) × (3 × 33 − 3)) − 3) (4+4)/4 ) := (4 × 4 + 4/4) × (444 − 4)/4 := 4 + (4 × ((444 + 4 × 4) + 4)) := 4 × 4 + ((44 − 4/4) := (5 + 5 + 5) × (5 × 5 × 5 − 5/5) := (5 × (5 × (5 × (5 + 5 + 5)))) − 5 − 5 := (5 × (5 × (5 × (5 + 5 + 5)))) − 5 := (6 − 66) × (6 − (6 × 6 + 6/6)) := 66 + ((6 − 6 × 6) × (6 − 66) − 6/6) := (66/6 + 6) × ((666 − 6)/6) := (7 × (7 × 7 × 7 − 77)) − (7 + 7)/7 := ((7 + 7 + 7)/7) + (7 × (7 × 7 × 7 − 77)) := 7 + ((7 × (7 × 7 × 7 − 77)) + 7/7) := 8 + (888/((8 + 8)/8) + 88 × (8 + 8)) := 8 + (((88 × 88 + 8)/8) + 888) := (8/8 + 8 + 8) × (888 − 8)/8 := 9 × 9 + ((9 + 9) × 99 − ((9 + 9 + 9)/9)) := 9 × 9 + ((9 + 9) × 99 + ((9 + 9)/9)) := 99 + ((9 + 9) × 99 − (99/9)) Ï 1861 := 1 + (1 + (11 × (1 + 1 + 11)1+1 )) Ï 1866 := (1 + 1 + 1) × (11 + (1 + 11 × 111)/(1 + 1)) Ï 1871 := 1 + (11 × (1 + (1 + 1 + 11)1+1 )) := 2 + (22/2 × ((22/2 + 2)2 )) := 2 + (2 × (2 × (2 × 222 + 22))) := 22 + (((2 × 22) − 2/2)2 ) := 3/3 + ((3 × (3 × ((3 + 3)3 − 3 × 3))) − 3) := 3 + (3 × (3 × ((3 + 3)3 − 3 × 3))) := ((33 − 3) × (3 × 33 − 3)) − 3/3 := 4 + (4 × 444 + (4 − 4/4)4 ) := (4 − 4/4) × (((4/4 + 4)4 − 4) + 4/4) := 44 × 44 − (44 + 4)/4 := (((5 + 5 + 5) × (55 /5 − 5)) + 5)/5 := 5 + ((((5 + 5 + 5) × (55 /5 − 5)) + 5)/5) := 55 + (((5 − (55 + 55 ))/5) − 5) := 6 + ((((6 × 6 + 6/6) + 6)(6+6)/6 ) + 6) := 66 + (6 − 6 × 6) × (6 − 66) := (6 × ((6 × (6 × 6 + 6) − 6) + 66)) − 6/6 := (7 × (7 × 7 × 7 − 77)) − 7/7 := 77/7 + (77 × (7 + 7) + 777) := 7 + ((7 × (7 × 7 × 7 − 77)) + ((7 + 7)/7)) := 8 + ((8/8 + 8 + 8) × ((888 − (8 + 8))/8)) := 88 + (((8 + 8)/8) × (888 + 8/8)) := 8 × (88 + 8) + (8888/8 − 8) := 9 × 9 + ((9 + 9) × 99 − ((9 + 9)/9)) := 9 × 9 + ((9 + 9) × 99 + ((9 + 9 + 9)/9)) := 9 + (((9 + 9) × 99 − 9/9) + 9 × 9) Ï 1862 := 1 + (1 + (1 + (11 × (1 + 1 + 11)1+1 ))) Ï 1867 := (11 × (1 + (1 + 1 + 11)1+1 )) − 1 − 1 − 1 := (2 × (2 × (2 × 222 + 22))) − 2 := 2 + ((((2 × 22) − 2/2)2 ) + 22+2 ) := 2 × (2 × (222 − 22+2 )) := (((3 × (3 + 3))3 − 3)/3) − 3 × 33 := 3 + ((3 × (3 × ((3 + 3)3 − 3 × 3))) + 3/3) := (33 − 3) × (3 × 33 − 3) := 44 × 44 + ((4 − (44 + 44 ))/4) := 4 + ((4 − 4/4) × ((4/4 + 4)4 − 4)) := 4 × ((44 − 44) + 44 ) := 5 + ((5 − (5 + 5)/5) × ((55 − 5)/5 − 5)) := ((5/5 + 5) × (55 − 5)/(5 + 5)) − 5 := (5/5 + 5) × (55 − 5)/(5 + 5) := 6 + (((6 + 6)/6)6 × (6 × 6 − (6/6 + 6))) := 66 + ((6 − 6 × 6) × (6 − 66) + 6/6) := 6 × ((6 × (6 × 6 + 6) − 6) + 66) := 7 × (7 × 7 × 7 − 77) := 7 + ((7 × (7 × 7 × 7 − 77)) − ((7 + 7)/7)) := (77/7 + 7) × (777/7 − 7) := 88 + (((8 + 8)/8) × (888 − 8/8)) := 888 + 88/8 × (8/8 + 88) := (8 + 8) × (8 × (8 + 8) − (88/8)) := 9 × 9 + ((9 + 9) × 99 − 9/9) := 9 + (((9999/9 + 9 × 9 × 9) + 9) + 9) := 9 + ((9 + 9) × 99 + 9 × 9) 134 Ï 1872 := (1 + 1 + 11) × (1 + 11)1+1 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1873 := 1 + ((1 + 1 + 11) × (1 + 11)1+1 ) Ï 1878 := (1 + 1)11 − (1 + (1 + 1 + 11)1+1 ) Ï 1883 := 11 + ((1 + 1 + 11) × (1 + 11)1+1 ) := 2 + ((((2 × 22) − 2/2)2 ) + 22) := 2 + (2 × ((2 × (222 − 22+2 )) + 2)) := 2 + (22/2 × (((22/2 + 2)2 ) + 2)) := 3/3 + ((33 − 3) × (3 × 33 − 3)) := (33 × ((33 + 33 ) + 3)) − 3 := 3 + ((3 × 3 × (3 + 3)3 ) − ((3/3 + 3)3 )) := ((4 − 44 )/4) + 44 × 44 := (4 − 4/4) × ((4/4 + 4)4 + 4/4) := 4 + (((4 − 4/4) × (4/4 + 4)4 ) + 4) := 55 − ((5 + 5)/5 × (55 + 5)/5) := (5/5 + 5) × (55 + 5)/(5 + 5) := 5 + ((5/5 + 5) × (55 + 5)/(5 + 5)) := 6/6 + (6 × ((6 × (6 × 6 + 6) − 6) + 66)) := 6 × 6 × (66 − 6 − 6) − 66 := 6 + (6 × 6 × (66 − 6 − 6) − (66 + 6/6)) := 77/7 + (7 × (7 × 7 × 7 − 77)) := 7 + (((7 × (7 × 7 × 7 − 77)) + ((7 + 7)/7)) + 7) := 7 × (((7 × 7 × 77) − 7)/(7 + 7)) := 8/8 + ((8 + 8) × (8 × (8 + 8) − (88/8))) := 8 + ((8/8 + 8 + 8) × (888 − 8)/8) := 8 + ((8/8 + 8 + 8 + 8) × (88/8 + 8 × 8)) := 9 + (((9 + 9) × 99 + 9 × 9) + 9/9) := (((9 − 9/9) + 9) × 999/9) − 9 := 99 + ((9 + 9) × 99 + ((9 + 9)/9)) Ï 1874 := (1 + 1) × ((1 + 1)11 − 1111) 2 2+2 Ï 1879 := (1 + 1)11 − (1 + 1 + 11)1+1 Ï 1884 := (1 + 11) × (1 + ((1 + 11) × (1 + 1 + 11))) := 222/2 − ((22/2 + 2)2 ) := 2 × ((2 × (222 − 2)) − 22) := 3 + ((33 + 3/3) × (((3/3 + 3)3 ) + 3)) := 3 + (33 × ((33 + 33 ) + 3)) := 4 + ((4 − 4/4) × (4/4 + 4)4 ) := 44 + (4 × (444 + 4 × 4)) := 5 − ((5 + 5 + 5)/5) := 5 + (55 − ((55 + 55 + 5)/5)) := 5 + ((55 − ((55 + 55 + 5)/5)) + 5) := 6 + ((((6 + 6)/6)66/6 ) + (6 × (6 − 6 × 6))) := 6/6 + (6 × 6 × (66 − 6 − 6) − 66) := 6 + (6 × 6 × (66 − 6 − 6) − 66) := 777 + (7777/7 − (7 + 7)) := 7 + ((77/7 + 7) × (777/7 − 7)) := 7/7 + (7 × (((7 × 7 × 77) − 7)/(7 + 7))) := 8 + ((((8 + 8)/8) × (888 + 8/8)) + 88) := 8 × (88 + 8) + 8888/8 := 88 + (((8 × 8 × (8 × 8 − 8)) + 8)/((8 + 8)/8)) := 9 × 9 + ((9 + 9) × 99 + (99/9)) := 99 + ((9 + 9) × 99 − ((9 + 9)/9)) := (9 + 9) × 99 + (999/9 − 9) := 2 + (2 × (2 × (22 − 2 ))) := 3 + (((33 − 3) × (3 × 33 − 3)) − 3/3) 4 := 44 × 44 + (((4 − 4 ) + 4)/4) 5 5 5 Ï 1875 := 1 + ((1 + 1) × ((1 + 1)11 − 1111)) Ï 1885 := (1 + 1 + 11) × (1 + (1 + 11)1+1 ) Ï 1880 := 1 + ((1 + 1)11 − (1 + 1 + 11)1+1 ) := (2/2 + 2) × ((2/2 + 2 + 2)2+2 ) := 2 × (2 × ((222 − 22+2 ) + 2)) := (22/2)2 + (2 × 22 − 2)2 := 3 + ((33 − 3) × (3 × 33 − 3)) := (3 × 3 × (3 + 3)3 ) − ((3/3 + 3)3 ) := 3 + ((33 × ((33 + 33 ) + 3)) + 3/3) := (4 − 4/4) × (4/4 + 4)4 := (44 − 4) × (44 − 4/4 + 4) := 4 + (44/4 × (4 × 44 − (4/4 + 4))) := 5 × (5 × (5 × (5 + 5 + 5))) := 5 + (5 × (5 × (5 × (5 + 5 + 5)))) := 5 + ((5 × (5 × (5 × (5 + 5 + 5)))) + 5) := 6 + (66 × (6 × 6 − 6) − 666/6) := 6 × 6 × (66 − 6 − 6) − ((6 + 6)/6) := (6/6 − 66) × ((6/6 − 6 × 6) + 6) := 7 + (((7 × (7 × 7 × 7 − 77)) − 7/7) + 7) := 7 + ((7 × (7 × 7 × 7 − 77)) + (77/7)) := ((7 + 7)/7) + (7 × (((7 × 7 × 77) − 7)/(7 + 7))) := (8/8 + 8 + 8 + 8) × (88/8 + 8 × 8) := 8 + ((8 + 8) × (8 × (8 + 8) − (88/8))) := 8 + ((8/8 − (8 × 8 × 88))/(8 − 88/8)) := 9 × 9 + ((9 + 9) × 99 + ((99 + 9)/9)) := 99 + ((9 + 9) × 99 − 9/9) := (9 + 9) × 99 + (((999 + 9)/9) − 9) Ï 1876 := (1 + 1) × (1 + ((1 + 1)11 − 1111)) 6 Ï 1881 := 11 × (1 + (1 + (1 + 1 + 11)1+1 )) Ï 1886 := 1 + ((1 + 1 + 11) × (1 + (1 + 11)1+1 )) := 2 × ((2 × (222 − 22+2 )) + 2) := 22/2 × (((22/2 + 2)2 ) + 2) := 2 + (2 × ((2 × (222 − 2)) − 22)) := (33 + 3/3) × (((3/3 + 3)3 ) + 3) := 33 × ((33 + 33 ) + 3) := (33 − 3/3 − 3) × (3 × 33 + 3/3) := 4 + (4 × ((44 − 44) + 44 )) := 44/4 × (4 × 44 − (4/4 + 4)) := 4 × 444 + (444 − 4)/4 := 55 + ((5 − (55 + 55 ))/5) := 5 + ((5 × (5 × (5 × (5 + 5 + 5)))) + 5/5) := 55 + ((55 − (55 + 55 ))/5) := 6 + ((66/6 + 6) × ((666 − 6)/6)) := ((66/6 + 6) × 666/6) − 6 := ((66/6 + 6) × 666/6) − 6/6 := 7 + ((7 × (7 × 7 × 7 − 77)) + 7) := 777 + (7777/7 − 7) := ((7 × 7 × 77) − 7/7)/((7 + 7)/7) := 88 + (((8 × 8 × (8 × 8 − 8)) − 8)/((8 + 8)/8)) := (88/8 + 8) × (88/8 + 88) := ((8/8 + 8 + 8) × 888/8) − 8/8 := 99 + (((9 − 99)/(9 + 9)) + (9 + 9) × 99) := 99 + (9 + 9) × 99 := (((9 + 9)/9)99/9 ) − 9 × (9 + 9) Ï 1877 := 1 + ((1 + 1) × (1 + ((1 + 1)11 − 1111))) Ï 1882 := 1 + (11 × (1 + (1 + (1 + 1 + 11)1+1 ))) Ï 1887 := 111 × (1 + (1 + 1)1+1+1+1 ) := 2 + ((2 × 22 − 2)2 + 222/2) := (2 × ((2 × (222 − 2)) − 22)) − 2 := 222/2 × (22+2 + 2/2) := (3 × 3 × (3 + 3)3 ) − (((3/3 + 3)3 ) + 3) := 3/3 + (33 × ((33 + 33 ) + 3)) := (3 × (3 × ((3 + 3)3 − (3 + 3)))) − 3 := 4 + (((4 − 44 )/4) + 44 × 44) := 4 + ((4 − 4/4) × ((4/4 + 4)4 + 4/4)) := (4 − 4/4) × ((4/4 + 4)4 + 4) := 5 + ((5/5 + 5) × (55 − 5)/(5 + 5)) := 5 + (((5/5 + 5) × (55 − 5)/(5 + 5)) + 5) := (5 − (5 + 5)/5) × ((55 − 5)/5 + 5) := 6 × 6 × (66 − 6 − 6) − (66 + 6/6) := 6 + (((66/6 + 6) × ((666 − 6)/6)) + 6) := (66/6 + 6) × 666/6 := 7 + (((7 × (7 × 7 × 7 − 77)) + 7/7) + 7) := 777 + ((7777 + 7)/7 − 7) := 777 + (7777 − 7)/7 := (8/8 − (8 × 8 × 88))/(8 − 88/8) := 8/8 + ((88/8 + 8) × (88/8 + 88)) := (8/8 + 8 + 8) × 888/8 := (((9 + 9)/9)99/9 ) − (9 × (9 + 9) + 9) := 9/9 + ((9 + 9) × 99 + 99) := ((9 − 9/9) + 9) × 999/9 135 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1888 := 1 + (111 × (1 + (1 + 1)1+1+1+1 )) Ï 1898 := (1 + 1 + 11) × (1 + (1 + (1 + 11)1+1 )) Ï 1893 := (1 + 1)11 − (11 + (1 + 11)1+1 ) := 2 × (2 × 222 − (22 + 2)) := 2/2 + (2 × (2 × 222 − 22)) := 2 + ((2 × 22)2 + (2 × (2 − 22))) := 3/3 + ((3 × (3 × ((3 + 3)3 − (3 + 3)))) − 3) := 3 + (3 × (3 × ((3 + 3)3 − (3 + 3)))) := (33 − 3/3) × (((3 + 3)3 + 3)/3) := (4 + 4) × (44 − (4 × 4 + 4)) := 4/4 + (44 × (44 − 4/4)) := 4 + ((44 × (44 − 4/4)) + (4 + 4)/4) := ((5 + 5)/5)5 × (55 − 5/5 + 5) := (5 − (5 + 5)/5) × ((55 + 5)/5 + 5) := 5 + ((5 − (5 + 5)/5) × ((55 + 5)/5 + 5)) := 6/6 + ((66/6 + 6) × 666/6) := 6 + ((66/6 + 6) × 666/6) := ((66/6 + 6) × (666 + 6)/6) − 6 7 := 777 + 7777/7 := (7 × (7 − 7 × 7)) + (((7 + 7 + 7)/7) ) := 7 + (((7 + 7) × (((7 + 7)/7)7 + 7)) + 7/7) := (8 + 8) × ((888 − 8)/8 + 8) := ((8 + 8) × (888/8 + 8)) − 88/8 := 8 + ((8 − 8/8 + 8) × (8 × (8 + 8) − ((8 + 8)/8))) := 999 + (9 × 99 − ((9 + 9)/9)) := (9 + 9) × 99 + 999/9 := 9 + ((9 × 99 − 9/9) + 999) Ï 1889 := ((1 + 1) × (11 − 1)1+1+1 ) − 111 Ï 1894 := (1 + 1)11 − (11 × (1 + (1 + 1 + 11))) := 2 + (222/2 × (22+2 + 2/2)) 2 Ï 1899 := (11 − 1 − 1) × ((1 + 1) × 111 − 11) := 2 + (2 × (2 × 22 − 22)) := (2/2 + 2)2 × (222 − 22/2) := (3 × (3 × ((3 + 3) − (3 + 3)))) − 3/3 := 3 + ((3 × (3 × ((3 + 3)3 − (3 + 3)))) + 3/3) := 3 × ((3 × ((3 + 3)3 − (3 + 3))) + 3) := 4/4 + ((4 + 4) × (44 − (4 × 4 + 4))) := (4 + 4)/4 + (44 × (44 − 4/4)) := (4 − 4/4) × (((4/4 + 4)4 + 4) + 4) 3 5 := ((5/5 + 5)5 /(5 − 5/5)) − 55 := 5 + (((5/5 + 5) /(5 − 5/5)) − 55) := (5 × ((5 × (5 × (5 + 5 + 5))) + 5)) − 5/5 := ((6 + 6 + 6) × (666/6 − 6)) − 6/6 := 6 + (((66/6 + 6) × 666/6) + 6/6) := 6 + (((66/6 + 6) × 666/6) + 6) := 777 + (7777 + 7)/7 := 7 + ((7777 − 7)/7 + 777) := 777 + ((7777 + 77)/7) := 8 + ((88/8 + 8) × (88/8 + 88)) := 8 + (((8/8 + 8 + 8) × 888/8) − 8/8) := 88/8 + ((8 + 8) × ((888 − 8)/8 + 8)) := 999 + (9 × 99 − 9/9) := (9 + 9) × 99 + ((999 + 9)/9) := 9 + (999 + 9 × 99) Ï 1890 := 1 + (((1 + 1) × (11 − 1)1+1+1 ) − 111) Ï 1895 := 1 + ((1 + 1)11 − (11 × (1 + (1 + 1 + 11)))) Ï 1900 := (11 − 1)1+1 × (((1 + 1) × (11 − 1)) − 1) := (2 × 22)2 − ((2 × 22) + 2) := 2 + ((2 × (2 × 222 − 22)) + 2/2) := 2 × ((2 × (222 + 2)) − 22) := 3 × (3 × ((3 + 3)3 − (3 + 3))) := ((33 − 3/3) × (((3 + 3)3 + 3)/3)) − 3 := (((3 × (3 + 3))3 − 33)/3) − 33 := (44 + 4/4) × (44 − (4 + 4)/4) := 4 + 44 × 44 − (44 + 4/4) := 4 + ((44 × (44 − 4/4)) + 4) := (5 + 5 + 5) × (5 × 5 × 5 + 5/5) := (5 × ((5 × (5 × (5 + 5 + 5))) + 5)) − 5 := 5 × ((5 × (5 × (5 + 5 + 5))) + 5) := (6 + 6 + 6) × (666/6 − 6) := (6 − 6/6) × (6 × 66 − (66/6 + 6)) := (6 − 6/6) × ((((6 − 66)/6) − 6) + 6 × 66) := (7 + 7) × (((7 + 7)/7)7 + 7) := 7 + (7777/7 + 777) := (7/7 + 7 × 7) × (7 × 7 − 77/7) := (8 − 8/8 + 8) × (8 × (8 + 8) − ((8 + 8)/8)) := 8 + ((8/8 + 8 + 8) × 888/8) := (88/8 + 8) × (((88 + 8)/8) + 88) 99/9 := 9 + ((((9 + 9)/9) := 999 + 9 × 99 Ï 1891 := (1 + 1)11 − (1 + ((1 + 11) × (1 + 1 + 11))) 2 ) − 9 × (9 + 9)) Ï 1896 := (1 + 11) × ((1 + 1 + 11)1+1 − 11) := (9/9 + 9 + 9) × (9/9 + 99) Ï 1901 := 1 + ((11 − 1)1+1 × (((1 + 1) × (11 − 1)) − 1)) := (2 × 22) − (2 × 22 + 2/2) := 2 × ((2 × 222 − 22) + 2) := 2/2 + (2 × ((2 × (222 + 2)) − 22)) := 3/3 + (3 × (3 × ((3 + 3)3 − (3 + 3)))) := 3 + ((3 × (3 × ((3 + 3)3 − (3 + 3)))) + 3) := 3 + ((33 − 3/3) × (((3 + 3)3 + 3)/3)) := 44 × 44 − (44 + 4/4) := 4 + 44 × (44 − 4/4) 5 := 4 + (((44 × (44 − 4/4)) + 4/4) + 4) 5 := (((5 + 5 + 5) × (5 /5 + 5)) + 5)/5 := 5 + ((((5 + 5 + 5) × (5 /5 + 5)) + 5)/5) := 5/5 + (5 × ((5 × (5 × (5 + 5 + 5))) + 5)) := 6 + ((6/6 − 66) × ((6/6 − 6 × 6) + 6)) := 6 + ((6 + 6 + 6) × (666/6 − 6)) := (6 × (6 × (6 × 6 + 6) + 66)) − 6/6 − 6 := 7 + ((7777 + 7)/7 + 777) := 77/7 + ((7 + 7) × (((7 + 7)/7)7 + 7)) := 8 + (((8/8 + 8 + 8 + 8) × (88/8 + 8 × 8)) + 8) := (8 + 8 + 8) × (88 − (8/8 + 8)) := 888 + (8 × 8 × (8 + 8) − (88/8)) := 9/9 + (999 + 9 × 99) := 9 + (((9 − 9/9) + 9) × 999/9) := 99/9 + (999 + 9 × 99) 7 := 7/7 + ((7 + 7) × (((7 + 7)/7) + 7)) Ï 1892 := 11 × (1 + (1 + (1 + (1 + 1 + 11)1+1 ))) Ï 1897 := 1 + ((1 + 11) × ((1 + 1 + 11)1+1 − 11)) Ï 1902 := (1 + 1)11 − (1 + (1 + (1 + 11)1+1 )) := 2 × (2 × 222 − 22) := 2/2 + ((2 × 22)2 + (2 × (2 − 22))) := 2 + (2 × ((2 × (222 + 2)) − 22)) := 3 + ((3 × (3 × ((3 + 3)3 − (3 + 3)))) − 3/3) := (((3 × (3 + 3))3 − 33)/3) − (33 + 3) := (3 × (3 × (3 + 3)3 − 3)) − 33 := 44 × (44 − 4/4) := 4 + ((44 × (44 − 4/4)) + 4/4) := 44 × 44 + ((44 − 4)/4 − 44) 5 5 := 5 + ((5 − (5 + 5)/5) × ((5 − 5)/5 + 5)) := 5 × 5 + ((5/5 + 5) × (5 − 5)/(5 + 5)) := (5/5 + 5) × ((55 − 5)/(5 + 5) + 5) := 6 + (((66/6 + 6) × 666/6) − 6/6) := 66 × (6 + 6) + ((6666/6) − 6) := (6 × (6 × (6 × 6 + 6) + 66)) − 6 7 7 := 7 + ((7 + 7) × (((7 + 7)/7) + 7)) := 7 + ((7777/7 + 777) + 7) := 88 × (8 + 8) + 88 × 88/(8 + 8) := 8/8 + ((8 + 8 + 8) × (88 − (8/8 + 8))) := ((8 + 8)/8) × ((888 − 8/8) + 8 × 8) := 99 + ((9 + 9) × 99 + (99/9)) := 9 + ((999 − ((9 + 9)/9)) + 9 × 99) := 9 + ((9 + 9) × 99 + 999/9) := ((7 + 7)/7) + ((7 + 7) × (((7 + 7)/7) + 7)) 136 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1908 := (1 + 11) × (1 + ((1 + 1 + 11)1+1 − 11)) Ï 1903 := (1 + 1)11 − (1 + (1 + 11)1+1 ) Ï 1913 := (1 + 1)11 − (1 + (1 + (1 + (11 × (1 + 11))))) := (2 × 22)2 − (22/2 + 22) := 2 + ((2 × (2 × (222 − 2))) − 22) := (2 × 22)2 − (22 + 2/2) := 3 + ((((3 × (3 + 3))3 − 33)/3) − 33) := 3 × ((3 × ((3 + 3)3 − 3)) − 3) := 3 + ((((3 × (3 + 3))3 − 3)/3) − 33) := 44/4 + (44 × (44 − 4/4)) := 4 + (4 × (444 + 4 × (4 + 4))) := 4 + (44 × 44 − (44/4 + 4 × 4)) := 5 × 5 + ((5/5 + 5) × (55 + 5)/(5 + 5)) := (5/5 + 5) × ((55 + 5)/(5 + 5) + 5) := 5 + ((5/5 + 5) × ((55 + 5)/(5 + 5) + 5)) := 66 × (6 + 6) + (6666/6) := 6 × (6 × (6 × 6 + 6) + 66) := 66 × (6 × 6 − 6) − (66 + 6/6) := 777/7 + ((7 + 7) × ((7 + 7)/7) ) := (77/7 + 7) × ((7 × (7 + 7) + 7/7) + 7) := ((7/7 + 7 + 7) × ((7 + 7)/7)7 ) − 7 := ((8 + 8) × (888/8 + 8)) − 8/8 := ((8 + 8) × (8 × (8 + 8) − 8)) − (88 + 8)/8 := 8/8 + (8 × 8 × (8 + 8) + 888) := 99/9 × (99/9 + 9 × (9 + 9)) := 9 + ((999 + 9 × 99) + 9) := 9 + (((9 − 9/9) + 9) × ((999 + 9)/9)) 7 Ï 1909 := 1 + ((1 + 11) × (1 + ((1 + 1 + 11)1+1 − 11))) Ï 1904 := (1 + 1)11 − (1 + 11)1+1 Ï 1914 := (1 + 1)11 − (1 + (1 + (11 × (1 + 11)))) := 2 × (2 × (222 − 2 × (2 + 2))) := (22 + 2/2) × (((2/2 + 2)2+2 ) + 2) := (2 × 22)2 − 22 := ((33/3)3 ) + (((3 × 3 + 3)3 /3) − 3) := 3/3 + (3 × ((3 × ((3 + 3)3 − 3)) − 3)) := (3 × (3 × ((3 + 3)3 − 3))) − 3 := 4 × (444 + 4 × (4 + 4)) := 44 × 44 − (44/4 + 4 × 4) := 44/4 × (4 × 44 − (4 + 4)/4) 5 5 := 5 + (5 − 55/5 × 555/5) := 55 × 55 − 5555/5 := (66/6 + 6) × (666 + 6)/6 := 6/6 + (6 × (6 × (6 × 6 + 6) + 66)) := 66 × (6 × 6 − (6/6 + 6)) := (7 × ((7 × 7 × 7 − 77) + 7)) − 7 := (7 × ((7 × 7 × 7 − 77) + 7)) − (7 + 7)/7 := 77/7 × ((7 × (7 + 7) − 7/7) + 77) := (8 + 8) × (888/8 + 8) := ((8 + 8) × (8 × (8 + 8) − 8)) − 88/8 := (88 − 8/8) × (88 + 88)/8 := ((9 − 9/9) + 9) × ((999 + 9)/9) := 9 + ((9/9 + 9 + 9) × (9/9 + 99)) := 99/9 × (((99 + 9)/9) + 9 × (9 + 9)) := 5 − 55/5 × 555/5 Ï 1905 := 1 + ((1 + 1)11 − (1 + 11)1+1 ) Ï 1910 := 11 + ((11 − 1 − 1) × ((1 + 1) × 111 − 11)) Ï 1915 := (1 + 1)11 − (1 + (11 × (1 + 11))) := 2 + ((2 × 22)2 − (22/2 + 22)) := (2 × 22)2 − (22 + 2 + 2) := 2/2 + ((2 × 22)2 − 22) := (3 × ((3 × ((3 + 3)3 − 3)) − 3)) − 3 := (((3 × (3 + 3))3 − 3)/3) − 33 := 3 + ((((3 × (3 + 3))3 + 3)/3) − 33) := 4/4 + (4 × (444 + 4 × (4 + 4))) := (4 − 44)/4 + ((4 + 4) × (44 − 4 × 4)) := 44 × 44 − ((4 × 4 + 4/4) + 4) := 5 + (5 × ((5 × (5 × (5 + 5 + 5))) + 5)) := 55 − (5 × ((5 − (5 + 5)/5)5 )) := (55 × ((5 × 5 + 5) + 5)) − 5 − 5 := 6 + ((((66/6 + 6) × 666/6) + 6) + 6) := 6 + ((66/6 + 6) × (666 + 6)/6) := 6/6 + (66 × (6 × 6 − (6/6 + 6))) := 7/7 + ((7 × ((7 × 7 × 7 − 77) + 7)) − 7) := (7 × ((7 × 7 × 7 − 77) + 7)) − 7/7 := 7 + ((77/7 + 7) × ((7 × (7 + 7) + 7/7) + 7)) := 8/8 + ((8 + 8) × (888/8 + 8)) := 888 + (8 × 8 × (8 + 8) − ((8 + 8)/8)) := 88/8 + ((8 + 8) × (888/8 + 8)) := 9 + ((((9 − 9/9) + 9) × 999/9) + 9) := 9 + ((999 + 9 × 99) + (99/9)) := 9 × 99 + (((9 + 9)/9)9/9+9 ) Ï 1906 := 1 + (1 + ((1 + 1)11 − (1 + 11)1+1 )) Ï 1911 := (1 + 1 + 11) × (1 + (1 + (1 + (1 + 11)1+1 ))) Ï 1916 := (1 + 1)11 − (11 × (1 + 11)) := (2 × (2 × (222 − 2))) − 22 := (2 × 22)2 − ((22 + 2/2) + 2) := 2 + ((2 × 22)2 − 22) := (3 × (3 × ((3 + 3)3 − 3))) − 33/3 := (3 × 3 × (3 + 3)3 ) − 33 := (((3 × (3 + 3))3 − 3)/3) − 33 := (4 + 4)/4 + (4 × (444 + 4 × (4 + 4))) := 4 × 44 + (((4 + 4) × 444 − 4)/4) := 44 × 44 − (4 × 4 + 4) := 5 + ((5 × ((5 × (5 × (5 + 5 + 5))) + 5)) + 5/5) := 55 + (5/5 − (5 × ((5 − (5 + 5)/5)5 ))) := 55 + ((5 − (55 × (55 + 55)))/5) := (6 × (6 × (6 × 6 + 6) + 66)) − (6 + 6)/6 := 666/6 + (6 − 6 × 6) × (6 − 66) := 66 × (6 × 6 − 6) − ((6 + 6)/6)6 := ((7/7 + 7 + 7) × ((7 + 7)/7)7 ) − (7 + 7) := 7 × ((7 × 7 × 7 − 77) + 7) := 7 + ((7 × ((7 × 7 × 7 − 77) + 7)) − ((7 + 7)/7)) := (8 + 8)/8 + ((8 + 8) × (888/8 + 8)) := 888 + (8 × 8 × (8 + 8) − 8/8) := ((8 + 8) × (8 × (8 + 8) − 8)) − (8/((8 + 8)/8)) := 9 + (((9 + 9) × 99 + 999/9) + 9) := 9 × 9 × 9 + (((99 × (99 + 9)) − 9)/9) 9/9+9 := 9 × 99 + ((((9 + 9)/9) ) − 9) Ï 1907 := 1 + (1 + (1 + ((1 + 1)11 − (1 + 11)1+1 ))) Ï 1912 := 1 + ((1 + 1 + 11) × (1 + (1 + (1 + (1 + 11)1+1 )))) Ï 1917 := 1 + ((1 + 1)11 − (11 × (1 + 11))) := 2/2 + ((2 × (2 × (222 − 2))) − 22) := (2 × 22)2 − (22 + 2) := 2 + (((2 × 22)2 − 22) + 2/2) := ((33/3)3 ) + ((3 × 3 + 3)3 /3) := (((3 × (3 + 3))3 + 3)/3) − 33 := 3 × (3 × ((3 + 3)3 − 3)) := 4 + ((44 × (44 − 4/4)) + 44/4) := (4 + 4) × (44 − (4 × 4 + 4/4)) := 4/4 + (44 × 44 − (4 × 4 + 4)) := 5 + ((5/5 + 5) × ((5 − 5)/(5 + 5) + 5)) := 5 + (((5/5 + 5) × ((5 − 5)/(5 + 5) + 5)) + 5) := 55 + ((5 + 5)/5 × ((5 − 55 × 55)/5)) := (6 × (6 × (6 × 6 + 6) + 66)) − 6/6 := 66 × (6 × 6 − 6) − (((6 + 6)/6) + 66) := ((6 × 6/(6 + 6))6 ) + (66 × (6 + 6 + 6)) := 7 + ((7/7 + 7 × 7) × (7 × 7 − 77/7)) := 7/7 + (7 × ((7 × 7 × 7 − 77) + 7)) := 7 + ((7 × ((7 × 7 × 7 − 77) + 7)) − 7/7) := 8 × 8 + ((88/8 + 8) × ((8/8 + 88) + 8)) := 888 + 8 × 8 × (8 + 8) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) − (88/8)) := 9 + (((9 × 99 − 9/9) + 999) + 9) := 9 + ((99/9) × (99/9 + 9 × (9 + 9))) := 999 + (999 − 9 × 9) 5 5 137 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1918 := 1 + (1 + ((1 + 1)11 − (11 × (1 + 11)))) Ï 1923 := 1 + ((1 + 1) × ((1 + ((11 − 1) × (1 + 1 + 1)))1+1 )) Ï 1928 := 1 + ((1 + 1)11 − 111+1 ) := 2 + (((2 × 22)2 − 22) + 2) := (2 × 22)2 − (22/2 + 2) := 2 × (2 × (222 − 2)) := 3/3 + (3 × (3 × ((3 + 3)3 − 3))) := 3 + ((3 × (3 × ((3 + 3)3 − 3))) + 3) := 33/3 + (3 × (3 × ((3 + 3)3 − 3))) := 44 × 44 − ((4 + 4)/4 + 4 × 4) := 4 + (44 × 44 − (4 × 4 + 4/4)) := 44 × 44 − 4 − 4 := ((5 + 5)/5 + 5) × (5 × 55 − 5/5) := (((5 + 5)/5)55/5 ) − 5 × 5 × 5 := 5 + ((((5 + 5)/5)55/5 ) − 5 × 5 × 5) 6 := ((6 × 6 − 6) × ((6 + 6)/6) ) − (6 + 6)/6 := 6 + ((66 × (6 × 6 − 6) − ((6 + 6)/6)6 ) + 6) := 6 × 6 + ((66/6 + 6) × 666/6) 7 := 7 + (7 × ((7 × 7 × 7 − 77) + 7)) := (7 × 7 × (7 × 7 − 7)) − (((7 + 7)/7) + 7) := 7 + (((7/7 + 7 + 7) × ((7 + 7)/7)7 ) + 7/7) := ((8 + 8) × (8 × (8 + 8) − 8)) − (8 + 8)/8 := 888 + (8 × 8 × (8 + 8) + (88/8)) := 8 + ((8 + 8) × (8 × (8 + 8) − 8)) := 9 + (((9/9 + 9 + 9) × (9/9 + 99)) + 9) := (9 + 9) × (99 + 9) − (((99 + 9)/9) + 9) := 9 + ((9/9 + 9 + 9) × ((9 + 9)/9 + 99)) Ï 1919 := 1 + (1 + (1 + ((1 + 1)11 − (11 × (1 + 11))))) 2 := (2 × 22) − (2 2+2 + 2/2) Ï 1924 := (1 + 1)11 − (1 + (1 + (1 + 111+1 ))) Ï 1929 := 1 + (1 + ((1 + 1)11 − 111+1 )) := 2 × ((2 × (222 − 2)) − 2) := 2/2 + (2 × (2 × (222 − 2))) := 3 + ((((3 × (3 + 3)) − 3)/3) − 3 ) := (3 × (3 × (3 + 3)3 − 3)) − 33/3 := 44 × 44 − (4 × 4 + 4/4) := 3 + (3 × ((3 × ((3 + 3)3 − 3)) + 3)) := 4 + ((4 + 4) × (44 − 4 × 4)) := 4 + (44 × 44 − 44/4) 3 3 := (55 × ((5 × 5 + 5) + 5)) − (5/5 + 5) := ((6 × 6 − 6) × ((6 + 6)/6)6 ) − 6/6 := (55 × ((5 × 5 + 5) + 5)) − 5/5 := 5 + ((55 × ((5 × 5 + 5) + 5)) − 5/5) 6 := 7 + ((7 × ((7 × 7 × 7 − 77) + 7)) + 7/7) := ((8 + 8) × (8 × (8 + 8) − 8)) − 8/8 := (9/9 + 9 + 9) × ((9 + 9)/9 + 99) Ï 1920 := (111+1 − 1) × (1 + 1)1+1+1+1 := (6 × 6 + 6/6) × (((6 + 6)/6) − (6 + 6)) := (((6 × 666) − 6)/((6 + 6)/6)) − 66 := (77 × (77/7 + 7 + 7)) − 7/7 := (7 × 7 × (77 + 7)) − (((7 + 7 + 7)/7)7 ) := (8/((8 + 8)/8)) + ((8 + 8) × (8 × (8 + 8) − 8)) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) + 8/8) := (9 + 9) × (99 + 9) − (99/9 + 9) := 9 + ((9/9 + 9) × (999/9 + 9 × 9)) Ï 1925 := (1 + 1)11 − (1 + (1 + 111+1 )) 2 := 2 × (2 × (22 − (2 + 2))) Ï 1930 := 1 + (1 + (1 + ((1 + 1)11 − 111+1 ))) 2 := (2 × 22) − 22/2 := 2 + (2 × (2 × (222 − 2))) := ((33/3)3 ) + 3 × 33 × (3 + 3) := (((3 × (3 + 3))3 − 33)/3) − 3 := 44 × 44 − 44/4 := 44 × 44 − ((4 + 4)/4 + 4) := (6 × 6 − 6) × ((6 + 6)/6)6 := 55 × ((5 × 5 + 5) + 5) := 5 + (55 × ((5 × 5 + 5) + 5)) := (6 − 6/6) × (6 × 66 − (66/6)) := (6 − 6/6) × (((6 − 66)/6) + 6 × 66) := (7/7 + 7 + 7) × ((7 + 7)/7)7 := 77 × (77/7 + 7 + 7) := (7 × 7 × (7 × 7 − 7)) − ((7 + 7)/7)7 := (8 + 8) × (8 × (8 + 8) − 8) := 88/8 × (888/8 + 8 × 8) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) + ((8 + 8)/8)) := (9/9 + 9) × (999/9 + 9 × 9) := (9 + 9) × (99 + 9) − (9/9 + 9 + 9) := 9 + (9999/9 + 9 × (9 × 9 + 9)) := 3 + (3 × (3 × ((3 + 3)3 − 3))) := (4 + 4) × (44 − 4 × 4) := (55 + 5) × ((5 + 5)/5)5 Ï 1921 := 1 + ((111+1 − 1) × (1 + 1)1+1+1+1 ) := (((2 2+2+2 2 − 2) ) − 2)/2 Ï 1926 := (1 + 1)11 − (1 + 111+1 ) Ï 1931 := 1 + (1 + (1 + (1 + ((1 + 1)11 − 111+1 )))) := (2 × (2 × (222 − 2))) − 2 := (2 × 22)2 − (2/2 + 2 + 2) := 3 × ((3 × ((3 + 3)3 − 3)) + 3) := (((3 × (3 + 3))3 − 3)/3) − (3 × 3 + 3) := (4 − 44)/4 + 44 × 44 := 44 × 44 − (4/4 + 4) := 5/5 + ((55 + 5) × ((5 + 5)/5) ) := 5/5 + (55 × ((5 × 5 + 5) + 5)) := 5 + ((55 × ((5 × 5 + 5) + 5)) + 5/5) := 6/6 + ((6 × 6 − 6) × ((6 + 6)/6)6 ) := 6 + ((6 × 6 − 6) × ((6 + 6)/6)6 ) := 6 + ((6 − 6/6) × (6 × 66 − (66/6))) := 7/7 + ((7/7 + 7 + 7) × ((7 + 7)/7)7 ) := 7/7 + (77 × (77/7 + 7 + 7)) := 7 + ((77 × (77/7 + 7 + 7)) − 7/7) := 8/8 + ((8 + 8) × (8 × (8 + 8) − 8)) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) − ((8 + 8)/8)) := 88/8 + ((8 + 8) × (8 × (8 + 8) − 8)) := 9 × (9 × 9 + 9) + 9999/9 := (9 + 9) × ((99 − 9/9) + 9) := (9 + 9) × (99 + 9) − ((99 + 9 + 9)/9) 3 := 3 + ((3 × (3 × ((3 + 3) − 3))) + 3/3) 4 := 4/4 + ((4 + 4) × (4 − 4 × 4)) 5 Ï 1922 := (1 + 1) × ((1 + ((11 − 1) × (1 + 1 + 1)))1+1 ) := ((2 2+2+2 2 Ï 1927 := (1 + 1)11 − 111+1 Ï 1932 := (1 + 1) × ((1 + 1) × (((11 + 11)1+1 ) − 1)) 2 − 2) )/2 := 2 + ((2 × 22) − 22/2) 3 := 2 × (2 × 222 − 2) 3 := (((3 × (3 + 3)) + 33)/3) − 33 4 := (4 + 4)/4 + ((4 + 4) × (4 − 4 × 4)) 5 := (5 + 5)/5 + ((55 + 5) × ((5 + 5)/5) ) 6 := 6 + (66 × (6 × 6 − 6) − ((6 + 6)/6) ) := 3/3 + (3 × ((3 × ((3 + 3) − 3)) + 3)) := (3 × (3 × (3 + 3)3 − 3)) − 3 := 44 × 44 − ((4/4 + 4) + 4) := 44 × 44 − 4 := (5 + 5)/5 + (55 × ((5 × 5 + 5) + 5)) 6 := 6 + (((6 × 6 − 6) × ((6 + 6)/6) ) + 6/6) 7 := ((5 + 5)/5 + 5) × (5 × 55 + 5/5) := 6 × 6 × (66 − 6 − 6) − 6 − 6 := 7 + ((7/7 + 7 + 7) × ((7 + 7)/7) ) := 7 + (77 × (77/7 + 7 + 7)) := (8 + 8)/8 + ((8 + 8) × (8 × (8 + 8) − 8)) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) − 8/8) := ((8 + 8)/8) × ((88 × 88 − (8 + 8))/8) := ((9 + 9)/9) × ((9 × (99 + 9)) − (99/9)) := 9/9 + ((9 + 9) × ((99 − 9/9) + 9)) := ((99 + 9)/9) × (9 × (9 + 9) − 9/9) := 77/7 + (7 × ((7 × 7 × 7 − 77) + 7)) 138 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1938 := 1 + ((1 + 1)11 − 111) Ï 1933 := (1 + 1)11 − (1 + (1 + 1 + 1 + 111)) Ï 1943 := (1 + 1)11 − (111 − ((1 + 1) × (1 + 1 + 1))) := (2 × 22)2 − 2/2 − 2 := 2 + (2 × 22)2 := (2 × (2 × (222 + 2))) − 2/2 := ((3 × (3 + 3))3 − 33)/3 := 3 + (3 × (3 × (3 + 3)3 − 3)) := ((3 × (3 + 3))3 − 3)/3 := 4/4 + (44 × 44 − 4) := (4 + 4)/4 + 44 × 44 := 4 + ((44 × 44 − 4/4) + 4) := 55 + ((5/5 + 5) × (55 + 5)/(5 + 5)) := (5 + 5)/5 × ((5 − 5/5)5 − 55) := ((5/5 + 5)5 /(5 − 5/5)) − 5/5 := 6 × 6 × (66 − 6 − 6) − 66/6 := 6 × 6 × (66 − 6 − 6) − 6 := 6 × 6 × (66 − 6 − 6) − 6/6 := 7 + ((77 × (77/7 + 7 + 7)) + 7/7) := 77 + ((7 × (7 × 7 × 7 − 77)) − 7/7) := 7 + ((((7 + 7)/7 − 7) + 7 × 7)(7+7)/7 ) := 8 + (88/8 × (888/8 + 8 × 8)) := ((8 + 8)/8) × ((88 × 88 + 8)/8) := 8 + ((8 − 8/8 + 8) × (8 × (8 + 8) + 8/8)) := (9 + 9) × (99 + 9) − 99/9 := (9/9 + 9 + 9) × (999/9 − 9) := (9 + 9) × (99 + 9) − 9/9 Ï 1934 := (1 + 1)11 − (1 + 1 + 1 + 111) Ï 1939 := 1 + (1 + ((1 + 1)11 − 111)) Ï 1944 := (1 + 1) × ((1 + 11) × (11 − 1 − 1)1+1 ) := (2 × 22)2 − 2 := 2 + ((2 × 22)2 + 2/2) := 2 × (2 × (222 + 2)) := (((3 × (3 + 3))3 − 3)/3) − 3 × 3 := (((3 × (3 + 3))3 + 3)/3) − (3 + 3) := 3 × 3 × (3 + 3)3 := 44 × 44 − (4 + 4)/4 := 4 + (44 × 44 − 4/4) := 4 + (44 × 44 + 4) 5 5 := ((5/5 + 5) /(5 − 5/5)) − 5 := (5/5 + 5)5 /(5 − 5/5) := 6/6 + (6 × 6 × (66 − 6 − 6) − 6) := 6 × (6 × (66 − 6 − 6)) := 7 + (((7/7 + 7 + 7) × ((7 + 7)/7) ) + 7) := 77 + (7 × (7 × 7 × 7 − 77)) := (7 − 7/7) × ((77/7 + 7)(7+7)/7 ) := ((8 + 8)/8) × ((88 × 88 − 8)/8) := 8 + (((8 + 8) × (8 × (8 + 8) − 8)) + (88/8)) := 8 + (88 × (88 + 88)/8) := (9 + 9) × (99 + 9) − 9/9 − 9 := 99 + (9999/9 + 9 × 9 × 9) := (9 + 9) × (99 + 9) := ((5/5 + 5) /(5 − 5/5)) − 5 − 5 := ((6 − 66)/6) + 6 × 6 × (66 − 6 − 6) 7 Ï 1940 := 1 + (1 + (1 + ((1 + 1)11 − 111))) Ï 1935 := (1 + 1)11 − (1 + 1 + 111) Ï 1945 := 1 + ((1 + 1) × ((1 + 11) × (11 − 1 − 1)1+1 )) := (2 × 22)2 − 2/2 := 2 + ((2 × 22)2 + 2) := 2/2 + (2 × (2 × (222 + 2))) := 3 × (3 × (3 + 3)3 − 3) := (((3 × (3 + 3))3 − 3)/3) − 3 := ((3 × (3 + 3))3 + 3)/3 := 44 × 44 − 4/4 := 4 + 44 × 44 := 4 + ((44 × 44 + 4/4) + 4) := 5 + ((55 × ((5 × 5 + 5) + 5)) + 5) := 5 + (((55 × ((5 × 5 + 5) + 5)) + 5) + 5) := 55 − (55 /5 + 555) := (6 × 6/(6 + 6) + 6) × (6 × 6 × 6 − 6/6) := (6 + 6)/6 + (6 × 6 × (66 − 6 − 6) − 6) := 6/6 + 6 × 6 × (66 − 6 − 6) 7 := (7/7 + 7 + 7) × (((7 + 7)/7) + 7/7) := 7/7 + ((7 × (7 × 7 × 7 − 77)) + 77) := 7 + (((7 × (7 × 7 × 7 − 77)) − 7/7) + 77) := (8 − 8/8 + 8) × (8 × (8 + 8) + 8/8) := ((8 + 8)/8) × (88 × 88 + 8 + 8)/8 := 8 + ((88 × (88 + 88)/8) + 8/8) := (9 + 9) × (99 + 9) − 9 := (99/9 + 9) × (99 − ((9 + 9)/9)) := 9/9 + (9 + 9) × (99 + 9) Ï 1941 := 1 + (1 + (1 + (1 + ((1 + 1)11 − 111)))) Ï 1936 := (1 + 1)11 − (1 + 111) Ï 1946 := 11 + ((1 + 1)11 − (1 + 1 + 111)) 2 2 := 2 + (((2 × 22) + 2/2) + 2) := (2 × 22) := 2 + (2 × (2 × (222 + 2))) 3 3 := 3 + (((3 × (3 + 3)) − 33)/3) := (3 × 3 × (3 + 3) ) − 3 := 3 + (((3 × (3 + 3))3 − 3)/3) := 44 × 44 := 4 + (44 × 44 + 4/4) := 44 × 44 + (44 − 4)/4 := 5 + ((55 − (55/5))(5+5)/5 ) := 55 + (((5 − 55 )/5) − 555) := (55 − (55/5)) (5+5)/5 := ((((6 + 6)/6) + 6 × 6) + 6) (6+6)/6 := ((6 − (6 6−6/6 )) + 6)/((6 + 6)/6 − 6) := (6 + 6)/6 + 6 × 6 × (66 − 6 − 6) 7 (7+7)/7 := 7 + ((((7/7 + 7 + 7) × ((7 + 7)/7) ) + 7) + 7) := 7 + ((7 × (7 × 7 × 7 − 77)) + 77) := 88 × (88 + 88)/8 := 8 + ((88/8 × (888/8 + 8 × 8)) + 8) := 8 + (((8 + 8)/8) × ((88 × 88 + 8)/8)) := 9/9 + ((9 + 9) × (99 + 9) − 9) := (9 + 9) × (99 + 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 + 9) × (99 + 9) := (((7 + 7)/7 − 7) + 7 × 7) Ï 1942 := 1 + (1 + (1 + (1 + (1 + ((1 + 1)11 − 111))))) Ï 1937 := (1 + 1)11 − 111 Ï 1947 := 11 + ((1 + 1)11 − (1 + 111)) := 2/2 + (2 × 22)2 := 2 + (((2 × 22)2 + 2) + 2) := 22/2 + (2 × 22)2 := (((3 × (3 + 3))3 − 3)/3) − (3 + 3) := ((3 × (3 + 3))3 − (3 + 3))/3 := 3 + (3 × 3 × (3 + 3)3 ) := 4/4 + 44 × 44 := 4 + (44 × 44 + (4 + 4)/4) := 44/4 + 44 × 44 5 := 55 + ((((5 − 55 ) + 5)/5) − 555) := ((5/5 + 5) /(5 − 5/5)) − (5 + 5)/5 := 5 + (((5 + 5)/5 + 5) × (5 × 55 + 5/5)) := 6 × 6 × (66 − 6 − 6) − (6 + 6)/6 := 6 × 6 × (66 − 6 − 6) − 6/6 − 6 := 66/6 × (666/6 + 66) 7 := (7 × ((7 − 7 × 7) + 7)) + (((7 + 7 + 7)/7) ) := 77/7 × (((7 + 7)/7)7 + 7 × 7) := 8/8 + (88 × (88 + 88)/8) := 8 + (((8 + 8)/8) × ((88 × 88 − 8)/8)) := 88/8 × ((88 + 88) + 8/8) := (9 + 9)/9 + ((9 + 9) × (99 + 9) − 9) := (9 + 9) × (99 + 9) − (9 + 9)/9 := ((9 + 9 + 9)/9) + (9 + 9) × (99 + 9) 7 := 7 + ((7 × 7 × (7 × 7 − 7)) − ((7 + 7)/7) ) 139 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1953 := 1 + ((1 + 111+1 ) × (1 + 1)1+1+1+1 ) Ï 1948 := 11 + ((1 + 1)11 − 111) 2 2 2+2 := 22 + (2 × 22)2 := 2 × ((2 × (22 + 2)) + 2) := 2/2 + ((2 × 22) + 2 := 3 + (((3 × (3 + 3))3 + 3)/3) := 3 × (3 × (3 + 3)3 + 3) := 3 + (((3 × (3 + 3))3 + 33)/3) := 4 + ((44 × 44 + 4) + 4) := 4 × 4 + (44 × 44 + 4/4) := 44/4 × (4 × 44 + (4 + 4)/4) := 5 + (((5/5 + 5)5 /(5 − 5/5)) − 5/5) := (5 − (5 + 5)/5) × ((55 + 5)/5 + 5 × 5) := 55 − ((5555 + 5)/5 + 55) := 6 + (6 × 6 × (66 − 6 − 6) − ((6 + 6)/6)) := 6 + ((66/6) × (666/6 + 66)) := 66/6 × ((666 + 6)/6 + 66) := ((7 − 777)/7) + (7 × 7 × (7 × 7 − 7)) := 777 + (7 + 7) × (77 + 7) := ((7 + 7)/7) × ((7 + 7) × (77 − 7) − 7/7) := 8 + (((8 + 8)/8) × (88 × 88 + 8 + 8)/8) := 8/8 + ((8 + 8) × ((888 + 88)/8)) := (8/8 + 88) × (88 + 88)/8 := ((9 + 9)/9) × ((9 × (99 + 9)) + ((9 + 9)/9)) := 9 + (9 + 9) × (99 + 9) := 9 + ((((9 + 9)/9)99/9 ) − 99) Ï 1949 := 1 + (11 + ((1 + 1)11 − 111)) ) Ï 1958 := (1 + 1) × (11 × (111 − 11 − 11)) Ï 1954 := 1 + (1 + ((1 + 111+1 ) × (1 + 1)1+1+1+1 )) Ï 1959 := 11 + (11 + ((1 + 1)11 − 111)) := 2 + ((2 × 22)2 + 22/2) := 2 + ((2 × 22)2 + 22+2 ) := 22 + ((2 × 22)2 + 2/2) := 3 + ((((3 × (3 + 3))3 − 3)/3) + 3) := 3 × 3 + (((3 × (3 + 3))3 + 3)/3) := 3 + ((3 × (3 × (3 + 3)3 + 3)) + 3) := 4 + (((44 × 44 + 4/4) + 4) + 4) := 4 × 4 + (44 × 44 + (4 + 4)/4) := ((4 + 4) × (44 − 44/4)) − 4/4 5 5 := 5 + ((5/5 + 5) /(5 − 5/5)) := 5 + (((5/5 + 5) /(5 − 5/5)) + 5) := 55 − (5555/5 + 55) := 6 + (6 × 6 × (66 − 6 − 6) − 6/6) := ((66 − 6)/6) + 6 × 6 × (66 − 6 − 6) := ((6 × (666 − (6 + 6))) − 6)/((6 + 6)/6) 7 := (7 × (7 × (7 × 7 − 7) − (7 + 7))) − 77/7 := 7 + (77/7 × (((7 + 7)/7) + 7 × 7)) := (7 × (7 × (7 × 7 − 7) − (7 + 7))) − 7/7 := (8 × (8 + 8) × (8 + 8)) − (88/8 + 88) := ((8 + 8)/8) × (((88 × 88 + 8)/8) + 8) := (8 × (8 + 8) × (8 + 8)) − (8/8 + 88) := 9 + ((9 + 9) × (99 + 9) + 9/9) := ((99 − 9/9) × (99/9 + 9)) − 9/9 99/9 := (((9 + 9)/9) ) − 99 Ï 1955 := (1 + 1)11 − (((1 + 1)11−1 − 1)/11) Ï 1950 := 1 + (1 + (11 + ((1 + 1)11 − 111))) Ï 1960 := (11 − 1) × (1 + 1 + 1 + 11)1+1 := 2 + (2 × ((2 × (222 + 2)) + 2)) := 22 + ((2 × 22)2 − (2/2 + 2)) := 2 + ((2 × 22)2 + 22) := 3 + ((3 × 3 × (3 + 3)3 ) + 3) := ((3 × (3 + 3))3 + 33)/3 := 33 + (((3 × (3 + 3))3 − 33)/3) := 4 + (44 × 44 + (44 − 4)/4) := 4 + ((44 × 44 + 44/4) + 4) := (4 + 4) × (44 − 44/4) := (5 + 5 + 5) × (5 × 5 × 5 + 5) := 5 + ((5 + 5 + 5) × (5 × 5 × 5 + 5)) := ((5 + 5)/5 + 5) × (5 × 55 + 5) := 666 + (6 × 6 × 6 × 6 − ((6 + 6)/6)) := 6 + 6 × 6 × (66 − 6 − 6) := 66/6 + 6 × 6 × (66 − 6 − 6) := (7/7 + 77) × (77/7 + 7 + 7) := (7 − ((7 + 7)/7)) × (7 × (7 × 7 + 7) − 7/7) := 7 × (7 × (7 × 7 − 7) − (7 + 7)) := ((8 + 8)/8) × (((88 × 88 − 8)/8) + 8) := 8 + (88/8 × ((88 + 88) + 8/8)) := (8 × (8 + 8) × (8 + 8)) − 88 := 9 + ((9 + 9) × (99 + 9) − ((9 + 9 + 9)/9)) := 99/9 + (9 + 9) × (99 + 9) := (99 − 9/9) × (99/9 + 9) Ï 1951 := 1 + (1 + (1 + (11 + ((1 + 1)11 − 111)))) Ï 1956 := (1 + 1) × (1111 − (1 + (11 × (1 + 11)))) Ï 1961 := 1 + (11 − 1) × (1 + 1 + 1 + 11)1+1 := 2 + (((2 × 22)2 + 22/2) + 2) := 22 + ((2 × 22)2 − 2) := 2 + (((2 × 22)2 + 22) + 2/2) := 3 + ((((3 × (3 + 3))3 + 3)/3) + 3) := 3 + (3 × (3 × (3 + 3)3 + 3)) := 3 + ((((3 × (3 + 3))3 + 33)/3) + 3) := 4 + (44 × 44 + 44/4) := 4 + (44 × 44 + 4 × 4) := 4 + ((((4 − 4/4) + 4)4 ) − 444) := 5/5 + ((5 + 5 + 5) × (5 × 5 × 5 + 5)) := 5 + (((5 + 5 + 5) × (5 × 5 × 5 + 5)) + 5/5) := 5 × 5 + ((55 − (55/5))(5+5)/5 ) := 6 + (6 × 6 × (66 − 6 − 6) + 6/6) := 6 + (6 × 6 × (66 − 6 − 6) + 6) := 666 + (6 × 6 × 6 × 6 − 6/6) := (77/7 − 7) × (7 × (77 − 7) − 7/7) := 7/7 + (7 × (7 × (7 × 7 − 7) − (7 + 7))) := 8 × 8 + ((8/8 + 8 + 8) × 888/8) := (((8 × 8 × 8 × 8) − 8)/((8 + 8)/8)) − 88 := 8/8 + ((8 × (8 + 8) × (8 + 8)) − 88) := 9 + ((9 + 9) × (99 + 9) − ((9 + 9)/9)) := ((99 + 9)/9) + (9 + 9) × (99 + 9) := 9 + (((9 + 9) × (99 + 9) − 9/9) + 9) := 7 + ((7 − 7/7) × ((77/7 + 7) (7+7)/7 )) Ï 1952 := (1 + 111+1 ) × (1 + 1)1+1+1+1 2 Ï 1957 := (1 + 1)11 − (1 + (11 − 1) × (11 − 1 − 1)) 2 Ï 1962 := (1 + 1) × ((11 − 1 − 1) × (111 − 1 − 1)) := 2 × (2 × (22 + 2 + 2)) := 22 + ((2 × 22) − 2/2) := 2 + (((2 × 22)2 + 22) + 2) := 3 × 3 + (((3 × (3 + 3))3 − 3)/3) := 3 + ((((3 × (3 + 3))3 + 3)/3) + 3 × 3) := 3 × ((3 × (3 + 3)3 + 3) + 3) := 4 × (444 + 44) 5 4 := 4 + ((44/((4 + 4)/4)) + 44 × 44) 5 := (((4 − 4/4) + 4) ) − 444 := ((5 + 5)/5) × ((55 + 5/5) + 5) := 5 + (((5 + 5)/5) × ((55 + 5/5) + 5)) := (55 − 5)/(5 + 5) + (55 × (5 × 5 + 5)) := 6 + (6 × 6 × (66 − 6 − 6) + ((6 + 6)/6)) := 6 + ((6 × 6 × (66 − 6 − 6) + 6/6) + 6) := 666 + 6 × 6 × 6 × 6 := 777 + ((7 + 7) × (77 + 7) − 7/7) := 7 + ((7/7 + 77) × (77/7 + 7 + 7)) := ((7 + 7)/7) + (7 × (7 × (7 × 7 − 7) − (7 + 7))) := (8 + 8) × ((888 + 88)/8) := (88/8 + 8) × (888/8 − 8) := (8 + 8)/8 + ((8 × (8 + 8) × (8 + 8)) − 88) := 9 + ((9 + 9) × (99 + 9) − 9/9) := (9/9 + 9 + 9) × (((999 + 9)/9) − 9) := 9 + ((9 + 9) × (99 + 9) + 9) 140 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1963 := 1 + ((1 + 1) × ((11 − 1 − 1) × (111 − 1 − 1))) 2 Ï 1968 := 1 + ((1 + 1)11 − (11 − 1 − 1)1+1 ) 2 2+2 Ï 1973 := 1 + (1 + ((11 − 1 − 1) × (((1 + 1) × (111 − 1)) − 1))) := 2/2 + ((2 × 22)2 + (2 + 2 + 2)2 ) := 2 + ((((2 × 22) + 22) + 2/2) + 2) := 2 × (2 × 22 + 2 := 3/3 + (3 × ((3 × (3 + 3)3 + 3) + 3)) := (3 × (3 × ((3 + 3)3 + 3))) − 3 := 3 + ((((3 × (3 + 3))3 − 3)/3) + 33 ) := 4 × 4 + (44 × 44 + 44/4) := 4 × ((444 + 44) + 4) := 4/4 + (((4 + 4) × (44 − 4)) − 44) := (55 + 5)/(5 + 5) + (55 × (5 × 5 + 5)) := (55/5 + 5) × (5 × 5 × 5 − ((5 + 5)/5)) := (5 × (5 × 55 − 5)) + (55 − 5 − 5)/5 := 6/6 + (6 × 6 × 6 × 6 + 666) := 66 × (6 × 6 − 6) − 6 − 6 := 66 × (6 × 6 − 6) − 6/6 − 6 := 7 + ((77/7 − 7) × (7 × (77 − 7) − 7/7)) := (7 × 7 − 7/7) × (7 × 7 − (7/7 + 7)) := 777/7 + (7 × (7 × 7 × 7 − 77)) := 8 + ((88/8 × ((88 + 88) + 8/8)) + 8) := 8 + ((8 × (8 + 8) × (8 + 8)) − 88) := (8 × ((8 + 8) × (8 + 8) − 8)) − 88/8 := 9 + (((9 + 9) × (99 + 9) + 9/9) + 9) Ï 1964 := (1 + 1) × (1 + ((11 − 1 − 1) × (111 − 1 − 1))) 2 := 2 + ((((2 × 22) + 22) + 2) + 2) 3 ) 99/9 := 9/9 + ((((9 + 9)/9) ) − 9 × 9) := 9 + (((9 + 9) × (99 + 9) + (99/9)) + 9) Ï 1969 := 11 × (11 + ((1 + 1 + 11)1+1 − 1)) Ï 1974 := (1 + 1) × ((11 − 1)1+1+1 − (1 + 1 + 11)) 2 := 22 + ((2 × 22) + 22/2) 3 := 2 + ((2 × 22)2 + (2 + 2 + 2)2 ) 3 := 3 + (((3 × (3 + 3)) − (3 + 3))/3) := 3 + (3 × (3 × ((3 + 3)3 + 3))) := 44 + (44 × 44 − 44/4) := 44 + (44 × 44 − ((4 + 4)/4 + 4)) := 5 + (5 − (5555/5 + 55)) := 5 × 5 + ((5/5 + 5)5 /(5 − 5/5)) := (55 − 5)/5 + (5 × (5 × 55 − 5)) := 666 + (6 × 6 × 6 × 6 + ((6 + 6)/6)) := 66 × (6 × 6 − 6) − 66/6 := 3 × 3 + (((3 × (3 + 3)) + 33)/3) 4 := 4 + ((4 + 4) × (4 − 44/4)) 5 := 66 × (6 × 6 − 6) − 6 7 := 7 × 7 + ((7/7 + 7 + 7) × ((7 + 7)/7) ) := (7 − 7/7) × (7 × 7 × 7 − (7 + 7)) := (((8 × 8 × 8 × 8) + 8)/((8 + 8)/8)) − 88 := 8 + (((8 × (8 + 8) × (8 + 8)) − 88) + 8/8) := (8 − 88)/8 + (8 × ((8 + 8) × (8 + 8) − 8)) := 9 + ((9 + 9) × (99 + 9) + (99/9)) := 9 + ((99 − 9/9) × (99/9 + 9)) := 9 × 9 + ((9 + 9) × 99 + 999/9) 77/7 := (((7 + 7)/7) ) − (77 + 7) Ï 1965 := (1 + 1)11 − (1 + (1 + (11 − 1 − 1)1+1 )) Ï 1970 := 111 + (11 × (1 + 1 + 11)1+1 ) 2 2+2 := 22 + ((2 × (2 × (222 + 2))) − 2/2) := 2 + ((2 × 22) + 2 × 2 := ((3 + 3) × 333) − 33 := 3 + (((3 × (3 + 3)) − 3)/3) 4 := 4 + (((((4 − 4/4) + 4) ) − 444) + 4) 3 Ï 1975 := 1111 + (((1 + 11)1+1+1 )/(1 + 1)) ) := (2 × 22)2 + (2 × (22 − 2) − 2/2) 3 := 3 + ((3 × (3 × ((3 + 3)3 + 3))) + 3/3) 4 := 4 + ((4444/((4 + 4)/4)) − 4 ) 5 := 44 + (44 × 44 − (4/4 + 4)) 5 := 5 + (((5 + 5)/5 + 5) × (5 × 55 + 5)) := (5 × ((5 − 5/5) − 5)) − 5 := ((6 × 666) − 66)/((6 + 6)/6) := (6 − 6/6) × (6 × 66 − ((6 + 6)/6)) := 77 + (7777/7 + 777) := ((77 − 7)/7) × ((7 + 7) × (7 + 7) + 7/7) := 7 + ((7 × 7 − 7/7) × (7 × 7 − (7/7 + 7))) := 8 + ((88/8 + 8) × (888/8 − 8)) := 8 + (((8 × (8 + 8) × (8 + 8)) − 88) + ((8 + 8)/8)) := (8 × ((8 + 8) × (8 + 8) − 8)) − (8/8 + 8) := 9 + ((9 + 9) × (99 + 9) + ((99 + 9)/9)) := 9 × 9 × (9 + 9) + (((9 + 9)/9)9 ) := 9 + ((9 + 9) × (99 + 9) + ((99 + 99)/9)) Ï 1966 := (1 + 1)11 − (1 + (11 − 1 − 1)1+1 ) := 22 + (2 × (2 × (222 + 2))) := 3/3 + (((3 + 3) × 333) − 33) Ï 1971 := (11 − 1 − 1) × (((1 + 1) × (111 − 1)) − 1) 2 := 6/6 + (66 × (6 × 6 − 6) − 6) Ï 1976 := (1 + 1) × ((11 − 1)1+1+1 − (1 + 11)) := 2 × ((2 × 222 − 2) + 22) := 2 + (((2 × 22) + 22/2) + 22) 3 := 33 + (((3 × (3 + 3))3 − 3)/3) := 3 × (3 × ((3 + 3) + 3)) 4 := (4444/((4 + 4)/4)) − 44 := 5 × (5 × (5 × 5 + 55) − 5) 4 := 4 + ((4 × (4 + 4)) − (4 − 4/4) ) 5 := 44 + (44 × 44 − 4) 5 := 5 + ((((5 + 5)/5 + 5) × (5 × 55 + 5)) + 5/5) := 5/5 + ((5 × ((5 − 5/5) − 5)) − 5 ) := 5/5 + (5 × (5 × (5 × 5 + 55) − 5)) := 66 × (6 × 6 − 6) − ((6 + 6)/6 + 6 + 6) := 6 + (((6 × 666) − 66)/((6 + 6)/6)) := (6 + 6)/6 + (66 × (6 × 6 − 6) − 6) := 7 + ((7 × (7 × (7 × 7 − 7) − (7 + 7))) − 7/7) := (((7 + 7)/7) := 8 + ((8/8 + 88) × (88 + 88)/8) := 88/8 + ((8 × (8 + 8) × (8 + 8)) − 88) := (8 × ((8 + 8) × (8 + 8) − 8)) − 8 := ((9 + 9)/9) × ((9 × (99 + 9)) + (99/9)) := 999 + (9 × (99 + 9)) := 9 + ((((9 + 9)/9)99/9 ) − 9 × 9) Ï 1967 := (1 + 1)11 − (11 − 1 − 1)1+1 := 2 22/2 − ((2/2 + 2) 3 2+2 := (77 − 7/7) × ((77 + 7)/7 + 7 + 7) ) − 77 Ï 1972 := 1 + ((11 − 1 − 1) × (((1 + 1) × (111 − 1)) − 1)) 2 ) := 2 × ((2 × (22 − 2)) + 22) 3 := 3 + ((((3 × (3 + 3)) − 3)/3) − 3) 4 77/7 4 3 3 := 3 + (((3 × (3 + 3)) + 3)/3) 4 Ï 1977 := ((1 + 1) × ((11 − 1)1+1+1 − 11)) − 1 := 2/2 + ((2 × 22)2 + 2 × (22 − 2)) := 33 + (3 × 3 × (3 + 3)3 ) := (4 × (4 + 4)) − (4 − 4/4) := ((4 + 4) × (4 − 4)) − 44 := 44 + ((44 × 44 − 4) + 4/4) := ((5 + 5)/5 + 5) × ((5 × 55 + 5/5) + 5) := (((55 + 5)/5) + 5) × (555/5 + 5) := (5 + 5)/5 + (5 × (5 × (5 × 5 + 55) − 5)) := 66 × (6 × 6 − 6) − (6/6 + 6 + 6) := 66 × (6 × 6 − 6) − ((6 + 6)/6 + 6) := 66 × (6 × 6 − 6) − 6 × 6/(6 + 6) 77/7 := 7 + (7 × (7 × (7 × 7 − 7) − (7 + 7))) := 7/7 + ((((7 + 7)/7) := 8 + ((8 × (8 + 8) × (8 + 8)) − (8/8 + 88)) := (8 × ((8 + 8) × (8 + 8) − 8)) − (88 + 8)/8 := 8/8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − 8) := 9/9 + ((9 × (99 + 9)) + 999) := (99 × (99/9 + 9)) − (9 + 9 + 9)/9 99/9 := (((9 + 9)/9) )−9×9 141 ) − 77) := 7 + (((77 − 7)/7) × ((7 + 7) × (7 + 7) + 7/7)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1978 := (1 + 1) × ((11 − 1)1+1+1 − 11) Ï 1983 := 1 + ((1 + 1) × (1 + ((11 − 1 − 1) × (111 − 1)))) Ï 1988 := (1 + 1)11 − (111+1 − 1)/(1 + 1) := (2 × 22) + ((2 × 22)2 − 2) := 2 + (((2 × 22)2 + 2 × 22) + 2/2) := 2 × ((2 × (222 + 2)) + 22) := 33 + (((3 × (3 + 3))3 + 3)/3) := 3 + (33 × (33 + 33)) := 33 + (((3 × (3 + 3))3 + 33)/3) := 44 + (44 × 44 − (4 + 4)/4) := (44 × (4 + 4)) − (44 + 4)/4 := 4 + ((4 + 4) × (44 − 4 − 4)) := (55 × (55/5 + 5 × 5)) − (5 + 5)/5 := (((5 + 5)/5)55/5 ) − (55 + 5 + 5) := (((5 + 5)/5)55/5 ) − (55 + 5) := 66 × (6 × 6 − 6) − (6 + 6)/6 := (6 × 6/(6 + 6)) + 66 × (6 × 6 − 6) := 6 + (66 × (6 × 6 − 6) + ((6 + 6)/6)) := 7 + ((((7 + 7)/7)77/7 ) − 77) := ((7 + 7)/7) + ((7 × 7 × (7 × 7 − 7)) − 77) := 7 + ((7 × 7 × (7 × 7 − 7)) − 77) := (8 + 8)/8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − 8) := (8 × ((8 + 8) × (8 + 8) − 8)) − 8/8 := 888 + ((8888 − 88)/8) := ((9 + 9)/9) × (999 − (9/9 + 9)) := ((9 + 9 + 9)/9) + (99 × (99/9 + 9)) := 9 + ((99 × (99/9 + 9)) − 9/9) Ï 1979 := 1 + ((1 + 1) × ((11 − 1)1+1+1 − 11)) := (2 × 22) + ((2 × 22)2 − 2/2) Ï 1984 := (1 + 1)11 − ((1 + 1)(1+1)×(1+1+1) ) 2 := 2 × ((2 × 22 + 22) + 2) 3 Ï 1989 := (11 − 1 − 1) × ((1 + 1) × 111 − 1) := (2/2 + 2)2 × (222 − 2/2) := ((33/3)3 ) + 3 × (3 + 3)3 := 3 + ((33 × (3 + 33)) + 3/3) := ((3 + 3) × 333) − 3 × 3 := 44 + (44 × 44 − 4/4) := (4 + 4) × (44 − 4 − 4) := 4 + (((4 + 4) × (44 − 4 − 4)) + 4/4) := (55 × (55/5 + 5 × 5)) − 5/5 := (55/5 + 5) × (5 × 5 × 5 − 5/5) := (((5 + 5)5−5/5 ) − 55)/5 := 66 × (6 × 6 − 6) − 6/6 := 6 + (66 × (6 × 6 − 6) − ((6 + 6)/6)) := (66/6 + 6) × (666/6 + 6) 7 := (7 × 7 × (7 × 7 − 7)) − ((7 + 7)/7 + 77) := (((7 + 7 + 7)/7) ) − ((7 + 7) × (7 + 7) + 7) := 8 + (((8 × (8 + 8) × (8 + 8)) − 88) + (88/8)) := 8 × ((8 + 8) × (8 + 8) − 8) := (8/8 + 8 + 8) × (8 × (8 + 8) − (88/8)) := 9 × 99 + (9999/9 − (9 + 9)) := 9 + (99 × (99/9 + 9)) := (99 × (99/9 + 9)) − 9/9 Ï 1980 := (1 + 1) × ((11 − 1 − 1) × (111 − 1)) Ï 1985 := 1 + ((1 + 1)11 − ((1 + 1)(1+1)×(1+1+1) )) 2 := 7 + (((7 × 7 × (7 × 7 − 7)) − 77) + 7/7) Ï 1990 := 1 + ((11 − 1 − 1) × ((1 + 1) × 111 − 1)) := 2 × (2 × 22 + 22) := 2/2 + ((2 × 22) + 2 × (22 + 2)) := 2 + (2 × ((2 × (222 + 2)) + 22)) := 33 × (33 + 33) := 3 + ((((33/3)3 ) + 3 × (3 + 3)3 ) + 3) := 3 + (((3 + 3) × 333) − 33/3) 2 := 44 + 44 × 44 := 4/4 + ((4 + 4) × (4 − 4 − 4)) := 4 + (((4 + 4) × (44 − 4 − 4)) + (4 + 4)/4) := 55 × (55/5 + 5 × 5) := 5 + (55 × (55/5 + 5 × 5)) := (5 × (5 − 5/5)5 ) − (55 + 5) := 66 × (6 × 6 − 6) := 6 + (66 × (6 × 6 − 6) − 6/6) := (6 − 6/6) × (((6 + 6)/6) + 6 × 66) 4 77/7 := (77/7 + 7) × (777 − 7)/7 := 7 + (((((7 + 7)/7) := ((((8 + 8)/8) + 8) + 8) × (888 − 8)/8 := 8/8 + (8 × ((8 + 8) × (8 + 8) − 8)) := 99 × (99/9 + 9) Ï 1981 := 1 + ((1 + 1) × ((11 − 1 − 1) × (111 − 1))) 99/9 := 9 + (((((9 + 9)/9) ) − 77) + 7) ) − 9 × 9) + 9) Ï 1986 := (1 + 1)11 − (1 + ((1 + 111+1 )/(1 + 1))) := ((7 + 7)/7)7 + (7 × (7 × 7 × 7 − 77)) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − ((8 + 8)/8)) := 9 + ((99 × (99/9 + 9)) + 9/9) Ï 1991 := 11 × (1 + (11 + (1 + 1 + 11)1+1 )) := 2/2 + ((2 × 22)2 + 2 × 22) := 222 + (2 × 22 − 2)2 := 2 + ((2/2 + 2)2 × (222 − 2/2)) := 3/3 + (33 × (33 + 33)) := 3 + ((33 × (33 + 33)) + 3) := 33/3 + (33 × (33 + 33)) := 44 + (44 × 44 + 4/4) := (4 + 4)/4 + ((4 + 4) × (44 − 4 − 4)) := 44 + (44 × 44 + 44/4) := 5/5 + (55 × (55/5 + 5 × 5)) := 5 + ((55 × (55/5 + 5 × 5)) + 5/5) := ((((5 + 5)5−5/5 ) + 5)/5) − 5 − 5 := 6/6 + 66 × (6 × 6 − 6) := 6 + 66 × (6 × 6 − 6) := 66/6 + 66 × (6 × 6 − 6) := (7 × 7 × (7 × 7 − 7)) − 77 := (7 − 7/7) × (7 × 7 × 7 − (77 + 7)/7) := (((7 + 7 + 7)/7)7 ) − (7 + 7) × (7 + 7) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − (88/8)) := (8 + 8)/8 + (8 × ((8 + 8) × (8 + 8) − 8)) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − 8/8) := 9/9 + (99 × (99/9 + 9)) := 99 + (((9 − 9/9) + 9) × 999/9) := 99/9 + (99 × (99/9 + 9)) Ï 1982 := (1 + 1) × (1 + ((11 − 1 − 1) × (111 − 1))) Ï 1987 := (1 + 1)11 − ((1 + 111+1 )/(1 + 1)) 2 Ï 1992 := (1 + 1)11 − (1 + 111)/(1 + 1) := 2 + ((2 × 22)2 + 2 × 22) := 2/2 + ((2 × 22 − 2) + 222) := 2 × (((2 × (222 + 2)) + 22) + 2) := 3 + (((33/3)3 ) + 3 × (3 + 3)3 ) := ((3 + 3) × 333) − 33/3 := (3 + 3) × (333 − 3/3) := 44 + (44 × 44 + (4 + 4)/4) := 4 + ((44 × (4 + 4)) − (44 + 4)/4) := 4 + (((4 + 4) × (44 − 4 − 4)) + 4) 5−5/5 := (5 + 5)/5 + (55 × (55/5 + 5 × 5)) := (((5 + 5) := (6 + 6)/6 + 66 × (6 × 6 − 6) := 6 + (66 × (6 × 6 − 6) + 6/6) := 6 + (66 × (6 × 6 − 6) + 6) := 7/7 + ((7 × 7 × (7 × 7 − 7)) − 77) ) − (55 + 5 + 5))/5 := ((55 + 5)/5) × (555/5 + 55) := 7 + ((77/7 + 7) × (777 − 7)/7) := (7 − 7/7) × (7 × 7 × 7 − (77/7)) := (8 × ((8 + 8) × (8 + 8) − 8)) − (8 + 8)/8 := 88/8 + ((8 × ((8 + 8) × (8 + 8) − 8)) − 8) := 8 + (8 × ((8 + 8) × (8 + 8) − 8)) := (9 + 9)/9 + (99 × (99/9 + 9)) := 999 + (999 − (99/9)) := 99 + ((9 + 9) × 99 + 999/9) 142 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 1993 := (1 + 1)11 − (111 − 1)/(1 + 1) Ï 1998 := (1 + 1) × (111 × (11 − 1 − 1)) Ï 2003 := 1 + ((1 + 1) × (1 + (11 − 1)1+1+1 )) := 2 × 222 + ((222/2 + 2)/2) := 222 × (2/2 + 2)2 := (2 × 22 + 2/2)2 − 22 := 3/3 + ((3 + 3) × (333 − 3/3)) := (3 + 3) × 333 := 3 + (((3 + 3) × 333 − 3/3) + 3) := (44 × (4 + 4)) − (44/4 + 44) := 44 × 44 + (4 − 4 − 4)/4 := 44 × (4 + 4) − (44 + 4/4) := (((5 + 5)/5)55/5 ) − 55 := (((5 + 5)5−5/5 ) − (5 + 5))/5 := 5 + ((((5 + 5)5−5/5 ) − (5 + 5))/5) := 6 + ((66 × (6 × 6 − 6) + 6/6) + 6) := 6 × 666 × 6/(6 + 6) := 6 + ((66 × (6 × 6 − 6) + (66/6)) + 6) := 7777/7 + 7 × (77 + 7 × 7) := (77/7 + 7) × 777/7 := 7/7 + (7 × (7 × (7 × 7 − 7) − 7) − 7) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) + 8/8) := 888 + (8888 − 8)/8 := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) + (88/8)) := 9 × 99 + (9999/9 − 9) := (9 + 9) × 999/9 := 9 × 99 + (9999 + 9)/9 4 Ï 1994 := 1 + (1 + 1)11 − (111 − 1)/(1 + 1) Ï 1999 := ((1 + 1) × (11 − 1)1+1+1 ) − 1 Ï 2004 := (1 + 1) × (1 + 1 + (11 − 1)1+1+1 ) := (222 × (2/2 + 2)2 ) − 2 − 2 := 2/2 + (222 × (2/2 + 2)2 ) := 222/2 − (2 × 22) := ((3 + 3) × 333) − (3/3 + 3) := 3/3 + ((3 + 3) × 333) := 3 + ((3 + 3) × 333 + 3) := (4 + 4)/4 × (4 × (4 − 4) − 44/4) := 44 × 44 + ((4 − 4)/4) := 44 × (4 + 4) − 44 := ((((5 + 5)5−5/5 ) − 5)/5) − 5 := (((5 + 5)5−5/5 ) − 5)/5 := 5 + ((((5 + 5)5−5/5 ) − 5)/5) := 6 + ((66 × (6 × 6 − 6) + ((6 + 6)/6)) + 6) := 6/6 + (6 × 666 × 6/(6 + 6)) := 6 + (6 × 666 × 6/(6 + 6)) 4 4 77/7 := (7 + 7)/7 + (7 × (7 × (7 × 7 − 7) − 7) − 7) := (7 × (7 × (7 × 7 − 7) − 7)) − (7/7 + 7 + 7) := (((7 + 7)/7) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) + ((8 + 8)/8)) := 888 + 8888/8 := ((8 × 8 × 8 × 8) − 88)/((8 + 8)/8) := ((9 + 9)/9) × (999 − ((9 + 9)/9)) := 9/9 + (999 + 999) := 9 × 99 + (((9999 + 9) + 9)/9) Ï 1995 := (1 + 1 + 1) × ((111+1+1 − 1)/(1 + 1)) )−7×7 Ï 2000 := (1 + 1) × (11 − 1)1+1+1 Ï 2005 := 1 + ((1 + 1) × (1 + 1 + (11 − 1)1+1+1 )) := (((2 × 22) + 2)2 ) − (22/2)2 := 2222 − 222 := 2 + ((2 × 22 + 2/2)2 − 22) := ((3 + 3) × 333) − 3 := 3 + (((3 + 3) × 333) − 3/3) := 3 + (((3 + 3) × 333 + 3/3) + 3) 4 := 44/4 + ((4 + 4) × (4 − 4 − 4)) := 4 × 4 × 4 + 44 × 44 := 4/4 + (44 × (4 + 4) − 44) := (5 × (5 − 5/5)5 ) − 55 := 5 × 5 × (5 × 5 + 55) := 5 + (5 × 5 × (5 × 5 + 55)) := ((6 × 666) − 6)/((6 + 6)/6) := (6 + 6)/6 + (6 × 666 × 6/(6 + 6)) := (6 − 6/6) × ((6 × 66 − 6/6) + 6) := (7 × (7 × (7 × 7 − 7) − 7)) − (7 + 7) := 7/7 + ((((7 + 7)/7)77/7 ) − 7 × 7) := 7 + (77/7 + 7) × 777/7 := 88/8 + (8 × ((8 + 8) × (8 + 8) − 8)) := 8 + ((8 × ((8 + 8) × (8 + 8) − 8)) + 8) := 8 + (((8888 − (8 + 8))/8) + 888) := ((9 + 9)/9) × (999 + 9/9) := 9 + (((9 + 9)/9) × (999 − 9/9)) := 999 + (999 − ((9 + 9 + 9)/9)) Ï 1996 := (1 + 1) × ((11 − 1)1+1+1 − (1 + 1)) Ï 2001 := 1 + ((1 + 1) × (11 − 1)1+1+1 ) Ï 2006 := (1 + 1) × (1 + 1 + 1 + (11 − 1)1+1+1 ) := (222 × (2/2 + 2)2 ) − 2 := 2/2 + 2222 − 222 := 2 + (222/2 − (2 × 22)) := 3/3 + (((3 + 3) × 333) − 3) := 3 + (3 + 3) × 333 := 3 × 3 + ((3 + 3) × 333 − 3/3) := 4 × 4 + (44 × 44 + 44) := 44 × 44 + (4 + 4)/4 := (4 + 4)/4 + (44 × (4 + 4) − 44) := ((((5 + 5)5−5/5 ) + 5)/5) − 5 := (((5 + 5)5−5/5 ) + 5)/5 := 5 + ((((5 + 5)5−5/5 ) + 5)/5) := 6 + (66 × (6 × 6 − 6) + ((66 − 6)/6)) := ((6 × 666) + 6)/((6 + 6)/6) := (((6 + 6)/6)66/6 ) − (6 × 6 + 6) := 7/7 + ((7 × (7 × (7 × 7 − 7) − 7)) − (7 + 7)) := 7 × (7 × (7 × 7 − 7) − 7) − (7/7 + 7) := 7 + ((((7 + 7)/7)77/7 ) − 7 × 7) := ((88 + 8)/8) + (8 × ((8 + 8) × (8 + 8) − 8)) := (8/8 − 88) × (8/8 − (8 + 8 + 8)) := 8 + ((8888 − 8)/8 + 888) := ((9 + 9)/9) × (999 − 9/9) := 9 × 99 + ((9999 − 9)/9) := 9 + ((999 − 9/9) + 999) 4 Ï 1997 := ((1 + 1) × (111 × (11 − 1 − 1))) − 1 2 Ï 2002 := (1 + 1) × (1 + (11 − 1)1+1+1 ) Ï 2007 := (11 − 1 − 1) × (1 + (1 + 1) × 111) := (222 × (2/2 + 2) ) − 2/2 := 2 + 2222 − 222 := (2/2 + 2)2 × (222 + 2/2) := ((3 + 3) × 333) − 3/3 := 3 + ((3 + 3) × 333 + 3/3) := 3 × 3 + (3 + 3) × 333 4 4 := 44 × 44 + ((4 + 4)/4 − 4) := 44 × 44 + ((4 + 4 + 4)/4) := 4 + 44 × (4 + 4) − (44 + 4/4) := (((((5 + 5)5−5/5 ) + 5) + 5)/5) − 5 := ((((5 + 5)5−5/5 ) + 5) + 5)/5 := 5 + (((((5 + 5)5−5/5 ) + 5) + 5)/5) := 6 + (66 × (6 × 6 − 6) + (66/6)) := 6/6 + (((6 × 666) + 6)/((6 + 6)/6)) := 6 + (((6 × 666) + 6)/((6 + 6)/6)) := 77 + ((7/7 + 7 + 7) × ((7 + 7)/7) ) := 7 × (7 × (7 × 7 − 7) − 7) − 7 := 7 × (7 × (7 × 7 − 7) − 7) − (7 + 7)/7 := 888 + ((8888 − (8 + 8))/8) := ((8 − 888)/8) + (88 × (8 + 8 + 8)) := 8 + (8888/8 + 888) := 999 + (999 − 9/9) := 9 × 99 + 9999/9 := 9 + (999 + 999) 7 143 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2008 := 1 + ((11 − 1 − 1) × (1 + (1 + 1) × 111)) Ï 2013 := 1 + ((1 + 1)11 − ((1 + 1 + 1) × (1 + 11))) Ï 2018 := (1 + 1)11 − (11 − 1) × (1 + 1 + 1) := 222/2 + (2 × (2 − 22)) := 2/2 + (222/2 − (2 + 2 + 2)2 ) := 2 + (2 × (2 × ((222 − 2) + 22))) := 3 × 3 + ((3 + 3) × 333 + 3/3) := 33 × (((3/3 + 3)3 ) − 3) := 3 + (((33/3 + 3)3 ) − 33+3 ) := 4 + (44 × (4 + 4) − 44) := 4/4 + ((4 + 4) × (44 − 4) − 4) := (4 + 4)/4 + (4 + 4) × (44 − 4) := 55 − ((5555 + 5)/5 + 5) := 55 − (5555 + 5)/5 := 5 + (55 − (5555 + 5)/5) := ((6 + 6)/6)6 + 6 × 6 × (66 − 6 − 6) := (6 × (666 + 6) − 6)/((6 + 6)/6) := 6 + ((((6 + 6)/6)66/6 ) − 6 × 6) := 7 × (7 × (7 × 7 − 7) − 7) − 7/7 := 7 + (((((7 + 7)/7)77/7 ) − 7 × 7) + 7) := 7 + (7 × (7 × (7 × 7 − 7) − 7) + ((7 + 7)/7)) := 88 + ((8 + 8) × (8 × (8 + 8) − 8)) := 88/8 × ((888/8 + 8 × 8) + 8) := 8 + (((8888 + 88)/8) + 888) := 9 + ((999 + 999) + 9/9) := 9 × 99 + ((9999 + 99)/9) := ((9 + 9)/9) × ((999 + 9/9) + 9) Ï 2014 := (1 + 1)11 − (1 + 11 × (1 + 1 + 1)) Ï 2019 := 1 + ((1 + 1)11 − ((11 − 1) × (1 + 1 + 1))) Ï 2009 := 11 + ((1 + 1) × (111 × (11 − 1 − 1))) := (2 × 22 + 2/2)2 − 22+2 := 2 + (222/2 − (2 + 2 + 2)2 ) := (2 × 22 + 2/2)2 − (2 + 2 + 2) := 33/3 + (3 + 3) × 333 := 3/3 + (33 × (((3/3 + 3)3 ) − 3)) := 3 + (3 + 3) × (333 + 3) := (4 + 4) × (44 − 4) − (4 + 4)/4 := 4 + ((4 + 4) × (44 − 4) − 4/4) := 5 − (5555/5 + 5) := 55 − 5555/5 := 5 + (55 − 5555/5) := ((6 − 6/6) × (6 × 66 + 6)) − 6/6 := 6 × 6 + (66 × (6 × 6 − 6) − ((6 + 6)/6)) := (6 × (666 + 6) + 6)/((6 + 6)/6) := 7 × (7 × (7 × 7 − 7) − 7) := 7 + (7 × (7 × (7 × 7 − 7) − 7) − ((7 + 7)/7)) := ((77 − 7)/7) + 7 × (7 × (7 × 7 − 7) − 7) := 8 + ((8/8 − 88) × (8/8 − (8 + 8 + 8))) := 8 + (((8888 − 8)/8 + 888) + 8) := 88 + (((8 + 8) × (8 × (8 + 8) − 8)) + (88/8)) := 9 + (((9 + 9)/9) × (999 + 9/9)) := ((9 + 9)/9) × ((999 − 9/9) + 9) := 9 + ((((9999 − 9)/9) + 9 × 99) + 9) 4 := 4 + ((4 × (4 + 4) − 44) + 4/4) 5 Ï 2010 := 11 + (((1 + 1) × (11 − 1)1+1+1 ) − 1) Ï 2015 := (1 + 1)11 − (11 × (1 + 1 + 1)) Ï 2020 := (1 + 1) × ((11111 − 1)/11) := 222/2 − (22/2 + 22) := 2 × (2 × (222 + 22) − 2) := ((33/3 + 3)3 ) − 33+3 := 3 + ((3 + 3) × (333 + 3) + 3/3) := (4 + 4) × (4 − 4) − ((4 + 4)/4 + 4) := (4 + 4) × (44 − 4) − 4/4 := 4 + (4 + 4) × (44 − 4) := 5 + ((5 × 5 × (5 × 5 + 55)) + 5) := 55 + ((5 − 5555)/5) := 55 + ((55 × (5 − 5 × 5)) − 5) := (6 − 6/6) × (6 × 66 + 6) := 6 × 6 + (66 × (6 × 6 − 6) − 6/6) := (6 − 6/6) × ((((6 + 6)/6) + 6 × 66) + 6) := 7/7 + 7 × (7 × (7 × 7 − 7) − 7) := 7 + (7 × (7 × (7 × 7 − 7) − 7) − 7/7) := 77/7 + 7 × (7 × (7 × 7 − 7) − 7) := 888 + ((8888 + 88)/8) := 8 + ((8888/8 + 888) + 8) := ((8 × (8 × 8 × 8 − 8)) + 8)/((8 + 8)/8) := 9 + (((9999 − 9)/9) + 9 × 99) := ((9 + 9) × ((999 + 9)/9)) − 9/9 := ((9 + 9)/9) × (99/9 + 999) := 2 + (2 22/2 + (2 × (2 − 22))) := 3 + ((3 + 3) × 333 + 3 × 3) 4 Ï 2011 := 11 + ((1 + 1) × (11 − 1)1+1+1 ) Ï 2016 := 1 + ((1 + 1)11 − (11 × (1 + 1 + 1))) Ï 2021 := (1 + 1)11 − (1 + 1 + 1)1+1+1 := 2 + ((2 × 22 + 2/2)2 − 22+2 ) := 2 × (2 × ((222 − 2) + 22)) := (2 × 22 + 2/2)2 − 2 − 2 := 3 + (((3 + 3) × 333 + 3 × 3) + 3/3) := (3 + 3) × (333 + 3) := (3 − 3/3)33/3 − 33 := (4 + 4) × (44 − 4) − (4/4 + 4) := (4 + 4) × (44 − 4) := 4 + ((4 + 4) × (44 − 4) + 4/4) := 5 + ((((5 + 5)5−5/5 ) + 55)/5) := 5 + ((5 + 5)5−5/5 + 55)/5 + 5 := 6/6 + ((6 − 6/6) × (6 × 66 + 6)) := 6 × (66 × (6 − 6/6) + 6) := 6 + ((66 × (6 × 6 − 6) − 6/6) + 6 × 6) := (7 + 7)/7 + 7 × (7 × (7 × 7 − 7) − 7) := 7 + 7 × (7 × (7 × 7 − 7) − 7) := (77 + 7)/7 + 7 × (7 × (7 × 7 − 7) − 7) := 8 + (((8 × ((8 + 8) × (8 + 8) − 8)) + (88/8)) + 8) := 8 × ((8 × 8 × 8 − 8)/((8 + 8)/8)) := (8 × (8 + 8) × (8 + 8)) − (88/8 + 8 + 8) := 9 + (9999/9 + 9 × 99) := (9 + 9) × ((999 + 9)/9) := (((9 + 9)/9)99/9 ) − (9 + 9 + 9) := (((5 + 5) 5−5/5 ) + 55)/5 Ï 2012 := (1 + 1)11 − ((1 + 1 + 1) × (1 + 11)) Ï 2017 := 1 + (1 + ((1 + 1)11 − (11 × (1 + 1 + 1)))) Ï 2022 := (1 + 1) × (11 + (11 − 1)1+1+1 ) := 222/2 − (2 + 2 + 2)2 := (2 × 22)2 + (2/2 + 2)2+2 := 222/2 − 22 − 2 − 2 := 3 + ((3 + 3) × 333 + 33/3) := 3/3 + (3 + 3) × (333 + 3) := 3 + ((3 + 3) × (333 + 3) + 3) 4 4 := (4 + 4) × (4 − 4) − 4 := 4/4 + (4 + 4) × (4 − 4) := 4 + ((4 + 4) × (44 − 4) + (4 + 4)/4) := 55 − (5555 + 5 + 5)/5 := 5 + (55 − (5555 + 5 + 5)/5) := (5/5 + 5) × ((55 − 5)/(5 + 5) + 5 × 5) := (((6 + 6)/6)66/6 ) − 6 × 6 := 6 × 6 + (66 × (6 × 6 − 6) + 6/6) := 6 + (66 × (6 × 6 − 6) + 6 × 6) := 7 + ((77/7 + 7) × 777/7 + 7) := 7 + (7 × (7 × (7 × 7 − 7) − 7) + 7/7) := (7 − 7/7) × ((7 × 7 × 7 − 7) + 7/7) := ((8 × (8 × 8 × 8 − 8)) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 × 8 × 8 − 8)/((8 + 8)/8))) := (88 × (8 + 8 + 8)) − ((8 + 8)/8 + 88) := 9 + ((9999 + 9)/9 + 9 × 99) := 9/9 + ((9 + 9) × ((999 + 9)/9)) := ((9 + 9)/9) × (((99 + 9)/9) + 999) 144 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2023 := (1 + 1)11 − (1 + ((1 + 1) × (1 + 11))) Ï 2028 := (1 + 11) × (1 + 1 + 11)1+1 Ï 2033 := (1 + 1)11 − 1 − 1 − 1 − 1 − 11 := (2 × 22 + 2/2)2 − 2 := 2 + (222/2 − 22) := 2/2 + (222/2 − 22+2 ) := 3 + (((3 + 3) × (333 + 3) + 3/3) + 3) := 3 + ((3 + 3) × 333 + 33 ) := 33+3 + ((33/3)3 − 33 ) := 4 + (((4 + 4) × (4 − 4) − 4/4) + 4) := 44 + (4 × 444 − 4) := 4/4 + (4 × 444 + 44 ) := (((5 + 5)/5)55/5 ) − 5 × 5 := 5 + ((((5 + 5)/5)55/5 ) − 5 × 5) := (((5 + 5)/5)55/5 ) − (5 + 5 + 5) := 6 + ((66 × (6 × 6 − 6) + 6 × 6) + 6/6) := 6 + ((66 × (6 × 6 − 6) + 6 × 6) + 6) := (6 × (666 × 6/(6 + 6) + 6)) − 6/6 := 7 + (7 × (7 × (7 × 7 − 7) − 7) + 7) := (7 − 7/7) × ((7 × 7 × 7 − 7) + ((7 + 7)/7)) := ((7 + 7 + 7)/7)7 − 77 − 77 := (8/8 + 8 + 8) × (888/8 + 8) := 8 + (((8 × (8 × 8 × 8 − 8)) + 8)/((8 + 8)/8)) := 8/8 + ((8 + 8) × (8 × (8 + 8) − 8/8)) := (((9 + 9)/9)99/9 ) − (99/9 + 9) := (9/9 + 9 + 9) × ((99 − 9/9) + 9) 4 9/9+9 := 999 + (((9 + 9)/9) ) Ï 2024 := (1 + 1)11 − ((1 + 1) × (1 + 11)) Ï 2029 := 1 + ((1 + 11) × (1 + 1 + 11)1+1 ) Ï 2034 := (1 + 1)11 − 1 − 1 − 1 − 11 := 2 × (2 × (222 + 22)) := 2 + ((2 × 22 + 2/2)2 + 2) := 2 + (222/2 − 22+2 ) := 3 + ((3 − 3/3)33/3 − 33 ) := (((3 × 33 − 3)3−3/3 ) + 3)/3 := (3 + 3) × (333 + 3 + 3) := 4 + ((4 + 4) × (4 − 4) + 4) := 4 + ((44 + 4/4)(4+4)/4 ) := 44 + (4 × 444 + (4 + 4)/4) := 5 + (55 − 5555/5 + 5) := 5 + ((55 − 5555/5 + 5) + 5) := (55 × (((5 + 5)/5)5 + 5)) − 5/5 := 6 + (((((6 + 6)/6)66/6 ) − 6 × 6) + 6) := ((6 − 6/6) × (6 × 66 + (66/6))) − 6 := 6 × (666 × 6/(6 + 6) + 6) := 7 + ((7 × (7 × (7 × 7 − 7) − 7) + 7/7) + 7) := 7 + ((7 − 7/7) × ((7 × 7 × 7 − 7) + 7/7)) := (((7 + 7)/7)77/7 ) − (7 + 7) := 88 × ((8 − 8/8 + 8) + 8) := (8 × (8 + 8) × (8 + 8)) − (88/8 + 8) := (8 + 8)/8 + ((8 + 8) × (8 × (8 + 8) − 8/8)) := 9 × 9 + ((9 + 9) × (99 + 9) − 9/9) := 9 + (((9 + 9)/9) × (99/9 + 999)) := 9 + ((9 + 9) × (99 + 9) + 9 × 9) 4 Ï 2025 := (1 + 1)11 − (1 + (11 + 11)) Ï 2030 := (1 + 1)11 − (1 + 1) × (11 − 1 − 1) Ï 2035 := (1 + 1)11 − 1 − 1 − 11 := (2 × 22 + 2/2)2 := 2 + ((222/2 − 22) + 2) := 222/2 − (22/2 + 2) := 3 × (3 × (3 + 3)3 + 33 ) := 33 + ((3 + 3) × 333 − 3/3) := 3/3 + ((3 + 3) × (333 + 3 + 3)) := (44 + 4/4) := 4 + ((4 + 4) − 44)/((4 + 4)/4) := 4 + ((4 × 444 − 4/4) + 44 ) := 5 × (5 × (5 × 5 + 55) + 5) := 5 + ((55 × (5 − 5 × 5)) + 55 ) := 55 × (((5 + 5)/5)5 + 5) := 6 × 6 × 6 × 6 + ((6 × 6/(6 + 6))6 ) := (6 × 6 − 6/6) × (((6 + 6)/6)6 − 6) := (6 − 6/6) × (6 × 66 + (66/6)) := (7/7 + 7 + 7) × (((7 + 7)/7)7 + 7) := 7 × (7 × (7 × 7 − 7) + 7) − 77 := 7/7 + ((((7 + 7)/7)77/7 ) − (7 + 7)) := 8/8 + (88 × ((8 − 8/8 + 8) + 8)) := ((8 + 8)/8) × (8 × 8 × (8 + 8) − (8/8 + 8)) := 88/8 + (88 × ((8 − 8/8 + 8) + 8)) := 9 × ((9 + 9) × (9 + 9) − 99) := (((9 + 9)/9)99/9 ) − (9 + 9) := 9 + (((9 + 9) × (99 + 9) + 9 × 9) + 9/9) 4 (4+4)/4 Ï 2036 := (1 + 1)11 − 1 − 11 Ï 2026 := (1 + 1)11 − 11 − 11 Ï 2031 := 1 + ((1 + 1)11 − (1 + 1) × (11 − 1 − 1)) := 222/2 − 22 := 2 + (((2 × 22 + 2/2)2 + 2) + 2) := 222/2 − (2 × (2 + 2 + 2)) := 33 + ((3 + 3) × 333 + 3/3) := 33 + (3 + 3) × 333 := (3/3 + 3) × ((3 − 3/3)3×3 − 3) := (((4 + 4)4 ) − 44)/((4 + 4)/4) := 44 + (4 × 444 − 4/4) := 4 + (4 × 444 + 44 ) := 5 × 5 + ((((5 + 5)5−5/5 ) + 5)/5) := 5 + (((55 × (5 − 5 × 5)) + 5/5) + 55 ) := 5/5 + (55 × (((5 + 5)/5)5 + 5)) := 6 + ((6 − 6/6) × ((((6 + 6)/6) + 6 × 66) + 6)) := ((6 × 666) + 66)/((6 + 6)/6) := (((6 + 6)/6)66/6 ) − 6 − 6 := ((7 + 7 + 7)/7) − ((77 + 77) + 7) := 7/7 + (7 × (7 × (7 × 7 − 7) + 7) − 77) := 7 × 7 × (7 × 7 − 7) − (7/7 + 7 + 7 + 7) := (8 + 8)/8 + (88 × ((8 − 8/8 + 8) + 8)) := (8 × (8 + 8) × (8 + 8)) − (8/8 + 8 + 8) := (8 × (8 + 8) × (8 + 8)) − (88 + 8)/8 7 := 9/9 + ((9 + 9) × (99 + 9) + 9 × 9) Ï 2027 := 1 + ((1 + 1)11 − (11 + 11)) 99/9 := 9/9 + ((((9 + 9)/9) ) − (9 + 9)) Ï 2032 := (1 + 1)11 − (1 + 1)1+1+1+1 := 9 × 9 + ((9 + 9) × (99 + 9) + (99/9)) Ï 2037 := (1 + 1)11 − 11 := 222/2 − 22/2 := 2 + (2 × 22 + 2/2)2 := 222/2 − 22+2 := 33+3 + ((33/3)3 − 33) := 3/3 + ((3 + 3) × 333 + 33) := 3 + (3 + 3) × (333 + 3 + 3) := 44/4 + (4 + 4) × (4 − 4) := 4 × ((4 − 4) + 4 ) := 44 × (4 + 4) − 44/4 := 5 × 5 + (((((5 + 5)5−5/5 ) + 5) + 5)/5) := ((5 + 5)/5)5 + (5 × 5 × (5 × 5 + 55)) := (((5 + 5)/5)55/5 ) − 55/5 := 6 × 6 + (66 × (6 × 6 − 6) + (66/6)) := 6/6 + (((6 × 666) + 66)/((6 + 6)/6)) := (((6 + 6)/6)66/6 ) − 66/6 := (((7 + 7)/7)77/7 ) − (7 + 7 + 7) := 7 + ((7/7 + 7 + 7) × (((7 + 7)/7)7 + 7)) := (7 + 7 + 7) × (7 × (7 + 7) − 7/7) := 88/8 + (8 × ((8 × 8 × 8 − 8)/((8 + 8)/8))) := (8 + 8) × (8 × (8 + 8) − 8/8) := (8 × (8 + 8) × (8 + 8)) − 88/8 := 9 + (((9 + 9)/9) × ((999 + 9/9) + 9)) := 9 + ((((9 + 9)/9)9/9+9 ) + 999) := (((9 + 9)/9)99/9 ) − 99/9 4 4 4 145 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2038 := 1 + ((1 + 1)11 − 11) Ï 2043 := (1 + 1)11 − 1 − 1 − 1 − 1 − 1 Ï 2048 := (1 + 1)11 := ((2 − 22)/2) + 222/2 := 222/2 − (2/2 + 2 + 2) := 222/2 := 3 + (3 + 3) × (333 + 3 + 3) + 3/3 := 3 × (3 × (3 + 3)3 + 33) := (3 − 3/3)33/3 := (4 − 44)/4 + 44 × (4 + 4) := 44 × (4 + 4) − (4/4 + 4) := 44 × (4 + 4) := (5 + 5)/5 × ((5 − 5/5)5 − 5) := (((5 + 5)/5)55/5 ) − 5 := ((5 + 5)/5)55/5 := (6 − 66)/6 + (((6 + 6)/6)66/6 ) := 6/6 + ((((6 + 6)/6)66/6 ) − 6) := ((6 + 6)/6)66/6 := 7/7 + ((7 + 7 + 7) × (7 × (7 + 7) − 7/7)) := 7 × 7 × (7 × 7 − 7) − (7/7 + 7 + 7) := ((7 + 7)/7)77/7 := (8 − 88)/8 + (8 × (8 + 8) × (8 + 8)) := 88/8 + ((8 + 8) × (8 × (8 + 8) − 8/8)) := 8 × (8 + 8) × (8 + 8) := (((9 + 9)/9)99/9 ) − 9/9 − 9 := 99 + (9 + 9) × (99 + 9) := ((9 + 9)/9)99/9 Ï 2039 := 1 + (1 + (1 + 1)11 − 11) := 2 + (2 22/2 Ï 2044 := (1 + 1)11 − 1 − 1 − 1 − 1 − 22/2) 33/3 := (3 − 3/3) := 2 22/2 := 2/2 + 222/2 −2−2 3 −3×3 := 3/3 + (3 × (3 × (3 + 3) + 33)) 4 4 := 4 × (4 + 4) − (4/4 + 4 + 4) Ï 2049 := 1 + (1 + 1)11 := 3/3 + (3 − 3/3)33/3 := 4 × (4 + 4) − 4 := 4/4 + 44 × (4 + 4) := 5 × 5 + (5 − 5555/5) := 5/5 + ((((5 + 5)/5)55/5 ) − 5) := 5/5 + (((5 + 5)/5)55/5 ) := 66 + (66 × (6 × 6 − 6) − (6/6 + 6)) := ((6 + 6)/6)6 + 66 × (6 × 6 − 6) := 7 × 7 × (7 × 7 − 7) − ((77 + 7)/7 + 7) := 6/6 + (((6 + 6)/6)66/6 ) := 7 × 7 × (7 × 7 − 7) − (7 + 7) := (8 × (8 + 8) × (8 + 8)) − (8/8 + 8) := 7/7 + (((7 + 7)/7)77/7 ) := ((8 × 8 × 8 × 8) − 8)/((8 + 8)/8) := (((9 + 9)/9)99/9 ) − 9 := 8/8 + (8 × (8 + 8) × (8 + 8)) := 9/9 + ((9 + 9) × (99 + 9) + 99) := 9/9 + (((9 + 9)/9)99/9 ) 5 Ï 2040 := 1 + (1 + (1 + (1 + 1)11 − 11)) := 2 22/2 Ï 2045 := (1 + 1)11 − 1 − 1 − 1 − 2 × (2 + 2) := 2 3 := (3 + 3) × ((((3/3 + 3) + 3) ) − 3) 4 22/2 Ï 2050 := 1 + (1 + (1 + 1)11 ) − 2/2 − 2 33/3 := (3 − 3/3) := 2 + 222/2 −3 := 3 + ((3 − 3/3)33/3 − 3/3) 4 := (4 + 4) × (4 − 4/4) := 4/4 + (4 × (4 + 4) − 4) 5 5 := (4 + 4)/4 + 44 × (4 + 4) := 5 + (55 × (((5 + 5)/5) + 5)) := 5 + ((55 × (((5 + 5)/5) + 5)) + 5) := 5 × ((5 × (5 × 5 + 55) + 5) + 5) := 66 + (66 × (6 × 6 − 6) − 6) := 66 + (66 × (6 × 6 − 6) − 6/6) := (6 + 6)/6 + (((6 + 6)/6)66/6 ) := 7 × 7 × (7 × 7 − 7) − (77/7 + 7) := 7/7 + (7 × 7 × (7 × 7 − 7) − (7 + 7)) := (8 × (8 + 8) × (8 + 8)) − 8 := 8 + ((8 × (8 + 8) × (8 + 8)) − (88/8)) := 9/9 + ((((9 + 9)/9)99/9 ) − 9) := 99 + ((9 + 9) × (99 + 9) + ((9 + 9)/9)) Ï 2041 := 1 + (1 + (1 + (1 + (1 + 1)11 − 11))) := 2 + ((2 22/2 − 22/2) + 2) Ï 2046 := (1 + 1)11 − 1 − 1 := 2 3 := 3/3 + (3 + 3) × ((3/3 + 3 + 3) − 3) 4 22/2 −2 3 := 3 + (3 × (3 × (3 + 3) + 33)) := 44 × (4 + 4) − (4 + 4)/4 := 55 − (((5 − 5/5)5 + 55) + 5) := 55 − ((5 − 5/5)5 + 55) := (((6 + 6)/6)66/6 ) − 6/6 − 6 := 66 + 66 × (6 × 6 − 6) := (((7 + 7)/7)77/7 ) − 7 := (7 − 7/7) × (7 × 7 × 7 − ((7 + 7)/7)) := 8/8 + ((8 × (8 + 8) × (8 + 8)) − 8) := (8 × (8 + 8) × (8 + 8)) − (8 + 8)/8 := 99 + ((9 + 9) × (99 + 9) − ((9 + 9)/9)) := (((9 + 9)/9)99/9 ) − (9 + 9)/9 := 2 22/2 := 2 − (2 + 2 + 2) 33/3 := (3 − 3/3) := (3 − 3/3) −3−3 := 4 × (4 + 4) − ((4 + 4)/4 + 4) := (((5 + 5)/5) 66/6 := (((6 + 6)/6) ) − (5/5 + 5) 77/7 := 7/7 + ((((7 + 7)/7) ) − 7) := (8 + 8)/8 + ((8 × (8 + 8) × (8 + 8)) − 8) := 99 + ((9 + 9) × (99 + 9) − 9/9) := 2 + (222/2 + 2/2) := 3 + (3 − 3/3)33/3 := 4 + (44 × (4 + 4) − 4/4) := 5 + (55 − ((5 − 5/5)5 + 55)) := ((((6 + 6)/6)6+6 ) + 6)/((6 + 6)/6) := 7 × 7 × (7 × 7 − 7) − 7 := 88/8 + ((8 × (8 + 8) × (8 + 8)) − 8) := (((9 + 9)/9)9 ) + (9 × (9 × (9 + 9) + 9)) := 2 + 222/2 + 2 − 3/3 4 := 4 × (4 + 4) − 4/4 := (3 + 3) × (333 + 3 × 3) := 4 + 44 × (4 + 4) 55/5 ) − 5/5 := 5 + ((((5 + 5)/5)55/5 ) − 5/5) 66/6 ) − 6/6 := 6 + (66 × (6 × 6 − 6) + 66) := (((5 + 5)/5) := (((6 + 6)/6) )−6 := (9 + 9)/9 + (((9 + 9)/9)99/9 ) Ï 2052 := 1 + (1 + (1 + (1 + (1 + 1)11 ))) − 2/2 33/3 4 55/5 Ï 2047 := (1 + 1)11 − 1 22/2 := (8 + 8)/8 + (8 × (8 + 8) × (8 + 8)) Ï 2051 := 1 + (1 + (1 + (1 + 1)11 )) := 4 + (4 × (4 + 4) − 44/4) Ï 2042 := (1 + 1)11 − ((1 + 1) × (1 + 1 + 1)) := 7 × 7 × (7 × 7 − 7) − (7/7 + 7) := 7 × 7 × (7 × 7 − 7) − 77/7 := 7/7 + (7 × 7 × (7 × 7 − 7) − 7) := (8 × (8 + 8) × (8 + 8)) − 8/8 := ((8 × 8 × 8 × 8) + 8)/((8 + 8)/8) 99/9 := (((9 + 9)/9) ) − 9/9 146 := (99 + 9) × (9/9 + 9 + 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2053 := 1 + (1 + (1 + (1 + (1 + (1 + 1)11 )))) Ï 2058 := 11 + ((1 + 1)11 − 1) Ï 2063 := 1 + (1 + (1 + (1 + (11 + (1 + 1)11 )))) := 2 + ((222/2 + 2/2) + 2) := 2 + (222/2 + 2 × (2 + 2)) := 2 + ((222/2 + 22/2) + 2) := 3/3 + ((3 + 3) × (333 + 3 × 3)) := (3 + 3) × (((3/3 + 3) + 3)3 ) := 3 + ((33/3)3 + 33+3 ) := 4 + (44 × (4 + 4) + 4/4) := 44 × (4 + 4) + (44 − 4)/4 := 4 + (44 × (4 + 4) + 44/4) := 5 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + 5) := 5 + (((((5 + 5)/5)55/5 ) + 5) + 5) := 6 + ((((6 + 6)/6)66/6 ) − 6/6) := 6 × ((6/6 + 6)6×6/(6+6) ) := 6 + (((6 + 6)/6)6+6 + 6)/((6 + 6)/6) + 6 := (7 + 7)/7 + (7 × 7 × (7 × 7 − 7) − 7) := 7 × 7 × (7 × 7 − 7) := 7 + (7 × 7 × (7 × 7 − 7) − ((7 + 7)/7)) := 8 + (((8 × (8 + 8) × (8 + 8)) − (88/8)) + 8) := 8 + ((8 × (8 + 8) × (8 + 8)) + ((8 + 8)/8)) := 8 + (((8 × (8 + 8) × (8 + 8)) − 8/8) + 8) := 9/9 + ((99 + 9) × (9/9 + 9 + 9)) Ï 2054 := (1 + 1)11 + ((1 + 1) × (1 + 1 + 1)) 99/9 := 9 + ((((9 + 9)/9) ) + 9/9) := 99/9 + ((99 + 9) × (9/9 + 9 + 9)) Ï 2064 := (1 + 1)11 + (1 + 1)1+1+1+1 Ï 2059 := 11 + (1 + 1)11 := 2 + ((222/2 + 2) + 2) := 22/2 + 222/2 := 22+2 + 222/2 := 3 + ((3 − 3/3)33/3 + 3) := 3/3 + (3 + 3) × (3/3 + 3 + 3)3 := 3 + ((3 × 3 + 3)3 + 333) := 4 + (44 × (4 + 4) + (4 + 4)/4) := 44/4 + 44 × (4 + 4) := 4 × ((44 + 44 ) + 4) := 5 + ((((5 + 5)/5)55/5 ) + 5/5) := 55/5 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + (55/5)) := 6 + (((6 + 6)/6)66/6 ) := 66/6 + (((6 + 6)/6)66/6 ) := 6 + (6 × ((6/6 + 6)6×6/(6+6) )) := 7 + (7 × 7 × (7 × 7 − 7) − (77/7)) := 7/7 + 7 × 7 × (7 × 7 − 7) := 7 + 7 × 7 × (7 × 7 − 7) − 7/7 := 8 + ((8 × (8 + 8) × (8 + 8)) − ((8 + 8)/8)) := 88/8 + (8 × (8 + 8) × (8 + 8)) := 8 + ((8 × (8 + 8) × (8 + 8)) + 8) := 99 + ((9 + 9) × (99 + 9) + (99/9)) := 99/9 + (((9 + 9)/9)99/9 ) := 9 + ((9 + 9) × (99 + 9) + 999/9) Ï 2055 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + 1 + 1))) Ï 2065 := 1 + ((1 + 1)11 + (1 + 1)1+1+1+1 ) Ï 2060 := 1 + (11 + (1 + 1)11 ) := 2 + (((222/2 + 2/2) + 2) + 2) := 222/2 + (2 × (2 + 2 + 2)) := 2/2 + (222/2 + 22+2 ) := 3 + ((3 + 3) × (333 + 3 × 3)) := 33+3 + (33/3)3 := 3 + (((3 × 3 + 3)3 + 333) + 3/3) := 4 + ((4 × (4 + 4) − 4/4) + 4) := 4 + ((44 × (4 + 4) + 4) + 4) := 4 × 4 + (44 × (4 + 4) + 4/4) := 55 + (5 × 5 × (5 × 5 + 55)) := 5 + ((5 × 5 × (5 × 5 + 55)) + 55) := 55 + ((5 + 5) × (5 − 555/5)) := 6 + ((6 + 6)/6)66/6 + 6 := (6 × 6 − 6/6) × (66 − (6/6 + 6)) := (7 + 7)/7 + 7 × 7 × (7 × 7 − 7) := 7 + 7 × 7 × (7 × 7 − 7) := 8 + ((8 × (8 + 8) × (8 + 8)) − 8/8) := 8 + (((8 × 8 × 8 × 8) + 8)/((8 + 8)/8)) := 8 + (((8 × (8 + 8) × (8 + 8)) + 8/8) + 8) := 999/9 + (9 + 9) × (99 + 9) := 9 + ((9 × (9 × (9 + 9) + 9)) + (((9 + 9)/9)9 )) := 9 + (((((9 + 9)/9)99/9 ) − 9/9) + 9) 4 66/6 := 6 + ((((6 + 6)/6) 77/7 := 7 + (((7 + 7)/7) ) + 6/6) ) Ï 2056 := 11 + ((1 + 1)11 − (1 + 1 + 1)) Ï 2061 := 1 + (1 + (11 + (1 + 1)11 )) Ï 2066 := (1 + 1)11 + (1 + 1) × (11 − 1 − 1) := 2 × (2 + 2) + 222/2 := 2 + (222/2 + 22/2) := 2 + (222/2 + 22+2 ) := (((3 × (3 + 3))3 + 333) + 3)/3 := 333 + (3 × 3 + 3)3 := 3 + (((33/3)3 + 33+3 ) + 3) := 4 + (44 × (4 + 4) + 4) := 4 + (((44 × (4 + 4) + 4/4) + 4) + 4) := 4 × 4 + (44 × (4 + 4) + (4 + 4)/4) := 55 + ((((5 + 5)5−5/5 ) + 5)/5) := 5 + (((((5 + 5)5−5/5 ) + 5)/5) + 55) := 55 + ((((5 + 5)5−5/5 ) + 55)/5) := 6 + ((((6 + 6)/6)66/6 ) + ((6 + 6)/6)) := 6 + ((6 + 6)/6)66/6 + 6 + 6/6 := 6 + (((((6 + 6)/6)66/6 ) + 6) + 6) := 7 × 7 × (7 × 7 − 7) − (7 + 7)/7 := (7 + 7 + 7)/7 + 7 × 7 × (7 × 7 − 7) := 7 + (7 × 7 × (7 × 7 − 7) + 7/7) := 8 + (8 × (8 + 8) × (8 + 8)) := (8 × (8 + 8) × (8 + 8)) + (88 + 8 + 8)/8 := 8 + (((8 × (8 + 8) × (8 + 8)) + ((8 + 8)/8)) + 8) := 9 + ((99 + 9) × (9/9 + 9 + 9)) := 9 + ((((9 + 9)/9)99/9 ) + 9) 99/9 := 9 + ((((9 + 9)/9) ) − 9/9) Ï 2057 := 11 + ((1 + 1)11 − (1 + 1)) Ï 2062 := 1 + (1 + (1 + (11 + (1 + 1)11 ))) Ï 2067 := (1 + 1)11 + (((1 + 1) × (11 − 1)) − 1) := 22/2 + 222/2 − 2 := 22+2 + 222/2 − 2 := 22 + (222/2 − (2/2 + 2)) := 3 × 3 + (3 − 3/3)33/3 := 3/3 + ((3 × 3 + 3)3 + 333) := 3 + (((3 × 3 + 3)3 + 333) + 3) := 4 + ((44 × (4 + 4) + 4/4) + 4) := 4 + (44 × (4 + 4) + (44 − 4)/4) := 4 + ((44 × (4 + 4) + 44/4) + 4) := (((5 + 5) × ((5 − 5/5)5 + 5)) − 5)/5 := 5 + ((((5 + 5) × ((5 − 5/5)5 + 5)) − 5)/5) := ((55 + 5/5) × (((5 + 5)/5)5 + 5)) − 5 := 6 + (((((6 + 6)/6)6+6 ) + 6)/((6 + 6)/6)) := 6 + ((6 + 6)/6)66/6 + 6 + (6 + 6)/6 := 66 + (((6 × 666) + 6)/((6 + 6)/6)) 77/7 := 7 × 7 × (7 × 7 − 7) − 7/7 := 7 + ((((7 + 7)/7) := 8 + ((8 × (8 + 8) × (8 + 8)) + 8/8) := 8 + (((8 × (8 + 8) × (8 + 8)) − ((8 + 8)/8)) + 8) := 8 + ((8 × (8 + 8) × (8 + 8)) + (88/8)) := 9 + (((99 + 9) × (9/9 + 9 + 9)) + 9/9) := 9 + (((((9 + 9)/9)99/9 ) + 9/9) + 9) 99/9 := 9 + (((9 + 9)/9) ) ) + 7) 147 := 7 + (7 × 7 × (7 × 7 − 7) + ((7 + 7)/7)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2068 := (1 + 1)11 + ((1 + 1) × (11 − 1)) Ï 2073 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + 11))) Ï 2078 := (1 + 1)11 + ((11 − 1) × (1 + 1 + 1)) := 22 + 222/2 − 2 := 2 + 222/2 + 22 + 2/2 := 22 + 222/2 + 2 × (2 + 2) := 33/3 × ((3 + 3)3 − (33 + 3/3)) := (3 × (33+3 − 33 )) − 33 := 3 + ((3 − 3/3)33/3 + 33 ) := 4 + (44 × (4 + 4) + 4 × 4) := 4 + ((4 + 4) × (44 + 4) − 44/4) := (4 + 4) × (44 + 4) − (4 + 4)/4 := 5 × 5 + ((((5 + 5)/5)55/5 ) − 5) := 5 × 5 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + 5 × 5) := 66/6 × ((6 × (6 × 6 − 6) + ((6 + 6)/6)) + 6) := 6 + ((((6 × 666) + 6)/((6 + 6)/6)) + 66) := 6 × 6 + ((((6 + 6)/6)66/6 ) − 6) := 77/7 × (777/7 + 77) := 7 + ((7 × 7 × (7 × 7 − 7) + 7/7) + 7) := 7 + ((7 × 7 × (7 × 7 − 7) − 7/7 + 7) + 7) := 8 + ((((8 × 8 × 8 × 8) + 8)/((8 + 8)/8)) + 8) := 8 + ((((8 × (8 + 8) × (8 + 8)) + 8/8) + 8) + 8) := 8 + ((88 + 88)/8 + (8 × (8 + 8) × (8 + 8))) := 9 + ((((9 + 9)/9)99/9 ) + (99/9)) := 9 + (((9 + 9) × (99 + 9) + 999/9) + 9) := (99 × (((99 + 9)/9) + 9)) − 9/9 Ï 2074 := (1 + 1)11 + ((1 + 1) × (1 + 1 + 11)) Ï 2069 := 11 + (11 + ((1 + 1)11 − 1)) := 22 + (222/2 − 2/2) := 2 + 2 22/2 Ï 2079 := 1 + ((1 + 1)11 + ((11 − 1) × (1 + 1 + 1))) := 2 × 222 + 2222/2 + 22 + 2 3 := 3 × 3 + ((33/3)3 + 33+3 ) := (3/3 + 33) × (((3/3 + 3) ) − 3) := 3 × (33 × ((3 × (3 + 3)) + 3)) := (4 + 4) × (44 + 4) − 44/4 := 4 + ((4 + 4)4 + 44)/((4 + 4)/4) := (4 + 4) × (44 + 4) − 4/4 := 55 + (55 − 5555/5) := 5 + ((55 − 5555/5) + 55 ) := ((5 + 5) × ((55 − 5)/(5 + 5 + 5))) − 5/5 := 66/6 + (6 × ((6/6 + 6)6×6/(6+6) )) := (66/6 + 6) × ((666 + 66)/6) := 6 × 6 + (((((6 + 6)/6)66/6 ) − 6) + 6/6) := 77/7 + 7 × 7 × (7 × 7 − 7) := 7 + ((7 × 7 × (7 × 7 − 7) + ((7 + 7)/7)) + 7) := 7 + ((7 × 7 × (7 × 7 − 7) + 7) + 7) := (8/8 + 8 + 8) × ((888 + 88)/8) := (88/8 − 8) × (8 × 88 − (88/8)) := (9 × (99 + 9)) + (9999/9 − 9) := 99 × (((99 + 9)/9) + 9) := 8 + ((8 × (8 + 8) × (8 + 8)) + (88 + 8 + 8)/8) 9 := 99 + (9 × 9 × (9 + 9) + (((9 + 9)/9) )) Ï 2070 := 11 + (11 + (1 + 1)11 ) Ï 2075 := (1 + 1)11 + (1 + 1 + 1)1+1+1 Ï 2080 := (1 + 1)11 + ((11 × (1 + 1 + 1)) − 1) := 22 + 222/2 := 2 + 222/2 + 22 + 2/2 + 2 := 222/2 + 2 × 22+2 := 3 × ((3 × ((3 + 3)3 + 3)) + 33) := 33 + (3 − 3/3)33/3 := 3/3 + (3 × (33 × ((3 × (3 + 3)) + 3))) := (((4 + 4)4 ) + 44)/((4 + 4)/4) := (4 + 4) × (4 + 4) − (4/4 + 4) := (4 + 4) × (44 + 4) := (5 × (5 × (5 × 5 + 55 + 5))) − 55 := 5 × (((5 × (5 × 5 + 55) + 5) + 5) + 5) := (5 + 5) × ((55 − 5)/(5 + 5 + 5)) := 6 × ((666 × 6/(6 + 6) + 6) + 6) := 66 + (((6 − 6/6) × (6 × 66 + 6)) − 6/6) := (6/6 − 66) × (6 − ((6 + 6)/6 + 6 × 6)) := (7 − 7/7) × (7 × 7 × 7 + ((7 + 7)/7)) := 7 + (7 × 7 × (7 × 7 − 7) + ((77 − 7)/7)) := 7 + (((7 × 7 × (7 × 7 − 7) + 7/7) + 7) + 7) := ((8 + 8)/8) × (8 × 8 × (8 + 8) + (88/8)) := 8 + (((8 × (8 + 8) × (8 + 8)) + (88/8)) + 8) := 8 × ((8 × 8 × 8 + 8)/((8 + 8)/8)) 99/9 := 9/9 + (99 × (((99 + 9)/9) + 9)) := (9/9 + 9) × (99 + 99 + 9) Ï 2071 := 1 + (11 + (11 + (1 + 1)11 )) 4 := 9 + (((((9 + 9)/9) ) + 9) + 9) Ï 2076 := 1 + ((1 + 1)11 + (1 + 1 + 1)1+1+1 ) Ï 2081 := (1 + 1)11 + (11 × (1 + 1 + 1)) := 22 + 222/2 + 2/2 := 2 + 222/2 + 22 + 2 + 2 := 22 + (222/2 + 22/2) := (3 × 3 + 3)3 + (((3/3 + 3) + 3)3 ) := (3 + 3) × ((((3/3 + 3) + 3)3 ) + 3) := 33 + (3 − 3/3)33/3 := (4 + 4) × (44 + 4) − (4/4 + 4 + 4) := (4 + 4) × (44 + 4) − 4 := 4/4 + (4 + 4) × (44 + 4) := 55 − (((5 − 5/5)5 + 5 × 5) + 5) := 55 − ((5 − 5/5)5 + 5 × 5) := 5 + (55 − ((5 − 5/5)5 + 5 × 5)) := 6 + ((6 × 6 − 6/6) × (66 − (6/6 + 6))) := 66 + ((6 − 6/6) × (6 × 66 + 6)) := (6 × (6 × (((6 + 6)/6)6 − 6))) − 6/6 − 6 := 7 + (7 × 7 × (7 × 7 − 7) − 7/7 + 7) := 7 + 7 × 7 × (7 × 7 − 7) + 77/7 := 7 + (((7 × 7 × (7 × 7 − 7) + ((7 + 7)/7)) + 7) + 7) := 8 + ((((8 × (8 + 8) × (8 + 8)) − 8/8) + 8) + 8) := ((8 × (8 × 8 × 8 + 8)) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 × 8 × 8 + 8)/((8 + 8)/8))) := (9/9 + 9 + 9) × (9/9 + 99 + 9) := 9 × 9 × (9 + 9 + 9) − 999/9 := 9 × 9 + (((9 + 9)/9) × (999 + 9/9)) Ï 2072 := (1 + 1)11 + ((1 + 1) × (1 + 11)) Ï 2077 := (1 + 1)11 + (((11 − 1) × (1 + 1 + 1)) − 1) Ï 2082 := 1 + ((1 + 1)11 + (11 × (1 + 1 + 1))) := 2 + 222/2 + 22 := 2 × 222 + 2222/2 − 2 := ((2 × (22 + 2))2 ) − 222 := 33 + ((3 − 3/3)33/3 − 3) := 3 × 33+3 + ((3 − 333)/3) := 3 + (3 × (33 × ((3 × (3 + 3)) + 3))) := (4 + 4) × ((4 − 4/4) + 4) := 4/4 + ((4 + 4) × (4 + 4) − 4) := (4 + 4)/4 + (4 + 4) × (44 + 4) := (55 + 5/5) × (((5 + 5)/5)5 + 5) := 5 + ((55 + 5/5) × (((5 + 5)/5)5 + 5)) := 5 + (((55 + 5/5) × (((5 + 5)/5)5 + 5)) + 5) := 6 + ((((((6 + 6)/6)66/6 ) + 6) + 6) + 6) := (66 + 6/6) × ((6 × 6 − 6) + 6/6) := (6 × (6 × (((6 + 6)/6)6 − 6))) − 6 := 7 + (7 × 7 × (7 × 7 − 7) + 7) := 7 + 7 × 7 × (7 × 7 − 7) + (77 + 7)/7 := ((7 + 7 + 7)/7)7 − (7 × (7 + 7) + 7) := 8 + (((8 × (8 + 8) × (8 + 8)) + 8) + 8) := ((8 + 8 + 8) × (88 − 8/8)) − 88/8 := ((88/8 + 8) × (888 − 8)/8) − 8 := 9 + (((99 + 9) × (9/9 + 9 + 9)) + (99/9)) := 9 × 9 + (((9 + 9)/9) × (999 − 9/9)) := (9 × (99 + 9)) + ((9999 − 9)/9) 4 4 148 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2083 := 1 + (1 + ((1 + 1)11 + (11 × (1 + 1 + 1)))) Ï 2088 := (1 + 1)11 + ((1 + 1) × ((1 + 1) × (11 − 1))) Ï 2093 := 1 + ((1 + 1)11 + ((1 + 1) × (11 + 11))) := 2 + ((222/2 + 22/2) + 22) := 222/2 + 2 × (22 − 2) := 2/2 + (222/2 + 2 × 22) := 3 + 3 × 33 × (3 × (3 + 3) + 3) + 3/3 := 3 × (33+3 − 33) := 33 + ((33/3)3 + 33+3 ) := 4 + ((4 + 4) × (44 + 4) − 4/4) := 4 + ((4 + 4) × (44 + 4) + 4) := 44 + (44 × (4 + 4) + 4/4) := 5 + (((((5 + 5)/5)55/5 ) + 5 × 5) + 5) := (5 + 5)/5 × (((5 − 5/5)5 − 5) + 5 × 5) := 55 + ((5 + 5)/5 × ((5 − 5/5)5 − 5)) := 6 + ((66 + 6/6) × ((6 × 6 − 6) + 6/6)) := 6 × (6 × (((6 + 6)/6)6 − 6)) := 6 × 6 × (66 − 6) − (66 + 6/6) := 7 + (7 × 7 × (7 × 7 − 7) + 77/7 + 7) := (7 − 7/7) × ((7 × 7 × 7 − ((7 + 7)/7)) + 7) := 7 × (7 × (7 × 7 − 7) + 7) − (7 + 7) := 8 + ((((8 × (8 + 8) × (8 + 8)) + (88/8)) + 8) + 8) := (8 + 8 + 8) × (88 − 8/8) := (88 × (8 + 8 + 8)) − (88/8 + 8) := (9 × (99 + 9)) + 9999/9 := 9 × 9 × (9 + 9 + 9) − 99 := ((99 + 9 + 9)/9) × (9 × (9 + 9) − 9/9) Ï 2084 := (1 + 1)11 + ((1 + 1 + 1) × (1 + 11)) Ï 2089 := ((1 + 1) × (1111 − 11)) − 111 Ï 2094 := (1 + 1)11 + ((1 + 1) × (1 + (11 + 11))) := 222 + (2 × (22 − 2))2 := 2/2 + (222/2 + 2 × (22 − 2)) := (2 × 22 + 2)2 − 22 := 3 + ((3 − 3/3)33/3 + 33) := 3/3 + (3 × (33+3 − 33)) := 3 + ((3 × (33+3 − 33)) + 3) := 4 + (4 + 4) × (44 + 4) := 4 + (((4 + 4) × (44 + 4) + 4/4) + 4) := 44 + (44 × (4 + 4) + (4 + 4)/4) := (5 − 5/5) × ((55 + 5/5)/(5/5 + 5)) := 55 − ((5 − 5/5)5 + ((55 + 5)/5)) := 55 − (((5 − 5/5)5 + ((5 + 5)/5)) + 5) := 6 × 6 + (((6 + 6)/6)66/6 ) := 6/6 + (6 × (6 × (((6 + 6)/6)6 − 6))) := 6 × 6 × (66 − 6) − 66 := 7 + (7 × 7 × (7 × 7 − 7) + (77 + 7)/7 + 7) := ((7 + 7 + 7)/7)7 − 7 × (7 + 7) := (7 − 7/7) × ((7 × 7 × 7 − 7/7) + 7) := ((8 × (8 × 8 × 8 + 8)) + 8)/((8 + 8)/8) := 8/8 + ((8 + 8 + 8) × (88 − 8/8)) := ((8 + 8)/8) × (8888/8 − 8 × 8) := 9/9 + (9 × 9 × (9 + 9 + 9) − 99) := (9 × (9 × (9 + 9 + 9) − 9)) − (99 + 9)/9 99/9 := 9 + ((((((9 + 9)/9) ) + 9) + 9) + 9) Ï 2085 := (1 + 1)11 + (111/(1 + 1 + 1)) Ï 2090 := (111 − 1) × (((1 + 1) × (11 − 1)) − 1) Ï 2095 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + (11 + 11)))) := 2/2 + ((2 × (22 − 2))2 + 222 ) := 2 × 22 + 222/2 − 2 := 2/2 + (2 × 22 + 2)2 − 22 := (3 × (33+3 − 33)) − 3 := 3 + ((3 × (33+3 − 33)) − 3/3) := (3 × (33+3 − 33 )) − 33/3 := 4 + ((4 + 4) × (44 + 4) + 4/4) := 44 + (44 × (4 + 4) − (4 + 4)/4) := 4 + ((44 × (4 + 4) − 4/4) + 44) := 5 + ((5 + 5) × ((55 − 5)/(5 + 5 + 5))) := 55 + (55 × (((5 + 5)/5)5 + 5)) := ((55 + 5) × ((5 × 5 + 5) + 5)) − 5 := 6 + ((((6 + 6)/6)66/6 ) + 6 × 6) := 6/6 + (6 × 6 × (66 − 6) − 66) 66/6 := 6 × 6 + ((((6 + 6)/6) ) + 6/6) := 77 + (7 × (7 × (7 × 7 − 7) − 7) − 7/7) := 7 × 7 + ((((7 + 7)/7)77/7 ) − 7) := (88/8 − 8) × (8 × 88 − (8/8 + 8)) := (88/8 + 8) × (888 − 8)/8 := 9 + (9 × 9 × (9 + 9 + 9) − 999/9) Ï 2086 := ((1 + 1 + 11)1+1+1 ) − 111 := (9/9 + 9 + 9) × (99/9 + 99) Ï 2091 := 1 + ((111 − 1) × (((1 + 1) × (11 − 1)) − 1)) := 7 × (7 × (7 × 7 − 7) + 7) − (77 + 7)/7 := (88 × (8 + 8 + 8)) − (8/8 + 8 + 8) := (9 × (9 × (9 + 9 + 9) − 9)) − 99/9 Ï 2096 := (1 + 1)11 + ((1 + 1) × ((1 + 1) × (1 + 11))) := 2 + (2 × 22 + 2)2 − 22 := 2 + ((2 × (22 − 2))2 + 222 ) := 2 × 22 + (222/2 − 2/2) := 3/3 + 3 × (33+3 − 33) − 3 := 3 + (3 × (33+3 − 33)) := 4 + ((4 + 4) × (44 + 4) + (4 + 4)/4) := 44 + (44 × (4 + 4) − 4/4) := 55 − ((((5 − 5/5)5 + 5) + 5) + 5) := 55 − (((5 − 5/5)5 + 5) + 5) := (6 × (6 × (((6 + 6)/6)6 − 6))) − (6 + 6)/6 := 666/6 + 66 × (6 × 6 − 6) := 77 + 7 × (7 × (7 × 7 − 7) − 7) := (7 + 7) × (77 − 7) + 7777/7 := 7 + (((7 + 7 + 7)/7)7 − 7 × (7 + 7)) := ((8 + 8 + 8) × (88 − 8/8)) − (8 + 8)/8 := (88/8 − 8) × ((8 × 88 − 8) + 8/8) := (88 × (8 + 8 + 8)) − 8 − 8 := 999 + (((99 × 99) − (9 + 9))/9) := 999/9 + (99 × (99/9 + 9)) := (9 × (9 × (9 + 9 + 9) − 9)) − 9/9 − 9 Ï 2087 := 1 + (((1 + 1 + 11)1+1+1 ) − 111) := 2 22/2 + (2 × (22 − 2) − 2/2) Ï 2092 := (1 + 1)11 + ((1 + 1) × (11 + 11)) := 2 × 22 + 2 := ((33/3 + 3)3 ) − 3 × (3 + 3)3 := 4 + (44 × (4 + 4) + 44) := 55 − ((5 − 5/5)5 + 5) := 6 × 6 × (66 − 6) − ((6 + 6)/6)6 Ï 2097 := (11 − 1 − 1) × (11 + (1 + 1) × 111) := 2 + (2 × 22 + 2)2 − 22 + 2/2 22/2 := (3 × (33+3 − 33)) − 3/3 := 3 + ((3 × (33+3 − 33)) + 3/3) := 3 × ((33+3 − 33) + 3) := 4 + (((4 + 4) × (44 + 4) − 4/4) + 4) := 44 + 44 × (4 + 4) := 4 + ((44 × (4 + 4) + 44) + 4/4) := 55 + (5/5 − ((((5 − 5/5)5 + 5) + 5) + 5)) := 55 + (5/5 − (((5 − 5/5)5 + 5) + 5)) := 55 + (5/5 − ((5 − 5/5)5 + 5)) := (6 × (6 × (((6 + 6)/6)6 − 6))) − 6/6 := 66 × (6 × 6 − 6) + (666 + 6)/6 := 6 + (66 × (6 × 6 − 6) + 666/6) := 7/7 + (7 × (7 × (7 × 7 − 7) − 7) + 77) := 7 × 77 + ((((7 + 7) × 777) − 7)/7) := 7 × 7 + (((7 + 7)/7)77/7 ) := ((8 + 8 + 8) × (88 − 8/8)) − 8/8 := ((8 × 8 × 8 × 8) + 88)/((8 + 8)/8) := 8/8 + ((88 × (8 + 8 + 8)) − (8 + 8)) := 999 + (((99 × 99) − 9)/9) := 9 + (9999/9 + (9 × (99 + 9))) := (9 × (9 × (9 + 9 + 9) − 9)) − 9 149 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2098 := (1 + 1)11 + ((11 − 1)1+1 /(1 + 1)) 2 Ï 2103 := (1 + 1)11 + (111 − 1)/(1 + 1) 2 Ï 2108 := (111 × (((1 + 1) × (11 − 1)) − 1)) − 1 := 2 × (2 × (((22 + 2/2)2 ) − 2)) := 2 + (2 × 22 + 2) − 22 + 2 := 2 + 2222 − (22/2) := 3/3 + (3 × ((33+3 − 33) + 3)) := (3 × (33+3 − 33 )) − 3 := 3 + ((3 × (33+3 − 33 )) − 3/3) := 4 + ((44 × (4 + 4) + (4 + 4)/4) + 44) := 44 + (44 × (4 + 4) + 44/4) := 44 × (44 + 4) − 4 := 55 + ((((5 + 5)/5)55/5 ) − 5) := 55 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + 55) := ((6 − 66) × (6/6 − 6 × 6)) − (6 + 6)/6 := ((6 × (666 + 6 × 6)) − 6)/((6 + 6)/6) := 66 + ((((6 + 6)/6)66/6 ) − 6) := 7/7 + ((((7 + 7)/7)77/7 ) + 7 × 7) := ((7 + 7 + 7)/7)7 − 77 − 7 := 7/7 + 7 × (7 × (7 × 7 − 7) + 7) := 8 + ((88/8 + 8) × (888 − 8)/8) := (88 × (8 + 8 + 8)) − (8/8 + 8) := (88 × (8 + 8 + 8)) − (8/((8 + 8)/8)) := 9/9 + ((9 × (9 × (9 + 9 + 9) − 9)) − 9) := (9 × (9 × (9 + 9 + 9) − 9)) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 × (9 × (9 + 9 + 9) − 9)) Ï 2099 := ((1 + 1) × (1111 − 1)) − 111+1 2 := 2 × (2 × (22 × (22 + 2) − 2)) := 2222 − (22/2) − 2 := 33/3 + (3 × (3 3+3 Ï 2104 := (1 + 1)11 + (1 + 111)/(1 + 1) − 33)) := 3/3 + ((3 × (3 3+3 3 − 3 )) − 3) Ï 2109 := 111 × (((1 + 1) × (11 − 1)) − 1) := 2222 − (222/2 + 2) := 3 + (3 × (33+3 − 33 )) := 4 + (((44 × (4 + 4) − 4/4) + 44) + 4) := 44 × (44 + 4) − 4 − 4 := 4/4 + (44 × (44 + 4) − 4) := 55 − ((5 − 5/5)5 + ((5 + 5)/5)) := 5 + (55 − ((5 − 5/5)5 + ((5 + 5)/5))) := 555/5 × (5 × 5 − (5/5 + 5)) := ((6 − 66) × (6/6 − 6 × 6)) − 6/6 := 6 + (((6 − 66) × (6/6 − 6 × 6)) − ((6 + 6)/6)) := 666/6 × ((6/6 + 6 + 6) + 6) 77/7 := 7 + ((((7 + 7)/7) := ((88/8 − 8)8−8/8 ) − 88 := (88 × (8 + 8 + 8)) − 8 := (88/8 + 8) × 888/8 := 9 + ((9/9 + 9 + 9) × (99/9 + 99)) := (9 × (9 × (9 + 9 + 9) − 9)) − (9 + 9)/9 := (9/9 + 9 + 9) × 999/9 Ï 2100 := (11 + (11 − 1)) × (11 − 1)1+1 ) + 7 × 7) := (7 + 7)/7 + 7 × (7 × (7 × 7 − 7) + 7) := 7 × (7 × (7 × 7 − 7) + 7) − (7/7 + 7) Ï 2105 := 1 + ((1 + 1)11 + (1 + 111)/(1 + 1)) Ï 2110 := 1 + (111 × (((1 + 1) × (11 − 1)) − 1)) := (2 × 22 + 2)2 − 22+2 := (2 × 22 + 2)2 − 22/2 := (2 × 22 + 2)2 − (2 + 2 + 2) := 3 + (3 × ((33+3 − 33) + 3)) := (3 × (33+3 − 33 )) − 3/3 := 3 + ((3 × (33+3 − 33 )) + 3/3) := 4 + ((44 × (4 + 4) + 44) + 4) := 4 + (44 × (44 + 4) − 44/4) := 44 × (44 + 4) − (4 + 4)/4 := (55 + 5) × ((5 × 5 + 5) + 5) := 5 + ((55 + 5) × ((5 × 5 + 5) + 5)) := 5 + (((55 + 5) × ((5 × 5 + 5) + 5)) + 5) := (6 − 66) × (6/6 − 6 × 6) := 6 + (((6 − 66) × (6/6 − 6 × 6)) − 6/6) := ((66 − 6)/6) × (6 × 6 × 6 − 6 + 6/6) := (7 − 7/7) × (7 × 7 × 7 + 7) := 7 × (7 × (7 × 7 − 7) + 7) − (7 + 7)/7 := ((7 + 7 + 7)/7)7 − 77 := (88 × (8 + 8 + 8)) − (88 + 8)/8 := 8/8 + ((88 × (8 + 8 + 8)) − 8) := (88 × (8 + 8 + 8)) − (8 + 8)/8 := (9/9 + 9) × (999/9 + 99) := (9 × (9 × (9 + 9 + 9) − 9)) − 9/9 := 999 + 9999/9 Ï 2106 := 1 + (1 + ((1 + 1)11 + (1 + 111)/(1 + 1))) Ï 2111 := ((1 + 1) × 1111) − 111 Ï 2101 := ((1 + 1) × 1111) − 111+1 := 2222 − (22/2) 2 := 2 + (2 × (2 × ((22 × (22 + 2)) − 2))) 3 3+3 3 := 2222 − 222/2 := (33 × ((3/3 + 3)3 )) − 3/3 := (33 × ((3/3 + 3) )) − 33/3 := 3 × (3 −3 ) := 44 × (44 + 4) − 44/4 := 44 × (44 + 4) − ((4 + 4)/4 + 4) 5 5 := 44 × (44 + 4) − 4/4 := 55 − (5 − 5/5)5 := 5 + (5 − (5 − 5/5) ) := 5 + ((55 − (5 − 5/5)5 ) + 5) := 6/6 + ((6 − 66) × (6/6 − 6 × 6)) := 6 + ((6 − 66) × (6/6 − 6 × 6)) := 66/6 + ((6 − 66) × (6/6 − 6 × 6)) := 7/7 + ((7 − 7/7) × (7 × 7 × 7 + 7)) := 7 × (7 × (7 × 7 − 7) + 7) − 7/7 := 7/7 + (((7 + 7 + 7)/7)7 − 77) := (88 × (8 + 8 + 8)) − 88/8 := (8 + 8)/8 + ((88 × (8 + 8 + 8)) − 8) := (88 × (8 + 8 + 8)) − 8/8 := 999 + (9999/9 − 9) := 9 × (9 × (9 + 9 + 9) − 9) := 999 + (9999 + 9)/9 Ï 2102 := 1 + (((1 + 1) × 1111) − 111+1 ) 2 := 2 + (2 × 22 + 2) − 2 := (3 × (3 3+3 2+2 3 − 3 )) − (3/3 + 3) := (4 − 44)/4 + 44 × (44 + 4) 5 5 Ï 2107 := ((1 + 1) × (1111 − (1 + 1))) − 111 := 2 + ((2 × 22 + 2)2 − 22/2) := 3/3 + (3 × (3 3+3 := 2 × (2 × (22 × (22 + 2))) 3 := 33 × ((3/3 + 3)3 ) − 3 )) := 44 × (44 + 4) − (4/4 + 4) 5 Ï 2112 := 1 + (((1 + 1) × 1111) − 111) := 44 × (44 + 4) 5 := 5 + ((5/5 − (5 − 5/5) ) + 5 ) := 55 + (55/5 − (5 − 5/5)5 ) := 6 + (6 × 6 × (66 − 6) − ((6 + 6)/6)6 ) := 6 + (((6 − 66) × (6/6 − 6 × 6)) + 6/6) := 66 × (((6 + 6)/6 − 6) + 6 × 6) := (7 + 7)/7 + ((7 − 7/7) × (7 × 7 × 7 + 7)) := 7 × (7 × (7 × 7 − 7) + 7) := 5 + (5/5 − (5 − 5/5) ) 8−8/8 := (8 − 88)/8 + (88 × (8 + 8 + 8)) := 8 + (((88/8 − 8) := 999 + ((9999 + 9)/9 − 9) := 9/9 + (9 × (9 × (9 + 9 + 9) − 9)) ) − 88) 150 := 7 + (7 × (7 × (7 × 7 − 7) + 7) − ((7 + 7)/7)) := 88 × (8 + 8 + 8) := 99/9 × (999/9 + 9 × 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2113 := ((1 + 1) × (1 + 1111)) − 111 2 Ï 2118 := 1 + (1 + (((1 + 1) × (1 + (11 + 11)))1+1 )) 2 Ï 2123 := 1 + (11 + (((1 + 1) × 1111) − 111)) := 2 + (2 × 22 + 2)2 + 2/2 + 2 + 2 := (2 × 22 + 2) − 2/2 − 2 := 2 + (2 × 22 + 2) := 3/3 + (33 × ((3/3 + 3)3 )) := 3 + ((33 × ((3/3 + 3)3 )) + 3) := 3 × 33+3 − ((3/3 + 3)3 ) := 4/4 + 44 × (44 + 4) := 4 + (44 × (44 + 4) + (4 + 4)/4) := 44/4 + 44 × (44 + 4) := 5 + (((((5 + 5)/5)55/5 ) + 55) + 5) := 555 + ((55 + 5/5)/((5 + 5)/5)) := (5 × (5 + 5 + 5)) + (((5 + 5)/5)55/5 ) := (6 × (6 × (66 − 6) − 6)) − 66/6 := (6 × (6 × (66 − 6) − 6)) − 6 := (6 × (6 × (66 − 6) − 6)) − 6/6 77/7 := 7 + ((7 × 7 − ((7 + 7 + 7)/7))(7+7)/7 ) := 7 + (7 × (7 × (7 × 7 − 7) + 7) − 7/7) := 77 + ((((7 + 7)/7) := 8/8 + (88 × (8 + 8 + 8)) := 8 + ((88 × (8 + 8 + 8)) − ((8 + 8)/8)) := 88/8 + (88 × (8 + 8 + 8)) := 9 + ((9 × (9 × (9 + 9 + 9) − 9)) − ((9 + 9)/9)) := 9 + ((9/9 + 9 + 9) × 999/9) := 9 + (((9 × (9 × (9 + 9 + 9) − 9)) − 9/9) + 9) Ï 2114 := 1 + (((1 + 1) × (1 + 1111)) − 111) ) − 7) Ï 2119 := 1 + (1 + (1 + (((1 + 1) × (1 + (11 + 11)))1+1 ))) Ï 2124 := 1111 + (1 + 1)11−1 − 11 := (2 × 22 + 2)2 − 2 := 2 + (2 × 22 + 2)2 + 2/2 := 2 × 2 × ((22 + 2/2)2 + 2) := 3 + ((33 × ((3/3 + 3)3 )) − 3/3) := 3 + (((33 × ((3/3 + 3)3 )) + 3/3) + 3) := 3 × (((33+3 − 33 ) + 3) + 3) := (4 + 4)/4 + 44 × (44 + 4) := 4 + ((44 × (44 + 4) − 4/4) + 4) := 44 + (4 + 4) × (44 + 4) := 5 + (555/5 × (5 × 5 − (5/5 + 5))) := (5 − 5/5)5 + (55 × (5 × 5 − 5) − 5) := (5 − 5/5)5 + 55 × (5 × 5 − 5) := 6/6 + ((6 × (6 × (66 − 6) − 6)) − 6) := 6 × (6 × (66 − 6) − 6) := 7 + 7 × (7 × (7 × 7 − 7) + 7) := (77 + 7)/7 + 7 × (7 × (7 × 7 − 7) + 7) := 7 + ((((7 + 7 + 7)/7)7 − 77) + 7) := (8 + 8)/8 + (88 × (8 + 8 + 8)) := 8 + ((88 × (8 + 8 + 8)) − 8/8) := ((88 + 8)/8) + (88 × (8 + 8 + 8)) := 9 + ((9 × (9 × (9 + 9 + 9) − 9)) − 9/9) := 9 + (9999/9 + 999) := 9 + ((9 × (9 × (9 + 9 + 9) − 9)) + 9) 66/6 := 66 + (((6 + 6)/6) ) Ï 2115 := (((1 + 1) × (1 + (11 + 11)))1+1 ) − 1 Ï 2120 := 11 + (111 × (((1 + 1) × (11 − 1)) − 1)) Ï 2125 := 1 + (1111 + (1 + 1)11−1 − 11) := (2 × 22 + 2)2 − 2/2 := 2 + (2 × 22 + 2)2 + 2 := 22/2 + (2 × 22 + 2)2 − 2 := 3 + (33 × ((3/3 + 3)3 )) := 3 × 33+3 − (((3/3 + 3)3 ) + 3) := 3/3 + (3 × (((33+3 − 33 ) + 3) + 3)) := 4 + (44 × (44 + 4) − 4/4) := 4 + (44 × (44 + 4) + 4) := 44 + ((4 + 4) × (44 + 4) + 4/4) := (5 − 5/5) × (555 − 5 × 5) := 5 × (5 × (5 × 5 + 55 + 5)) 5 := 555 + (5 × (5 − 5)/(5 + 5)) 66/6 := 6 + (666/6 × ((6/6 + 6 + 6) + 6)) := 6 + ((((6 + 6)/6) := 7 + (7 × (7 × (7 × 7 − 7) + 7) + 7/7) := 7 + ((7 × (7 × (7 × 7 − 7) + 7) − 7/7) + 7) := 88/8 + ((88 × (8 + 8 + 8)) − 8) := 8 + (88 × (8 + 8 + 8)) := 8 + (((88/8 + 8) × 888/8) + 8) := 9 + (9 × (9 × (9 + 9 + 9) − 9)) := 9 × 9 + ((((9 + 9)/9)99/9 ) − 9) := 9 + (((9 × (9 × (9 + 9 + 9) − 9)) + 9/9) + 9) Ï 2116 := ((1 + 1) × (1 + (11 + 11)))1+1 := (2 × 22 + 2) 2 ) + 66) := 6/6 + (6 × (6 × (66 − 6) − 6)) Ï 2121 := (11 + (11 − 1)) × (1 + (11 − 1)1+1 ) := 77 + (((7 + 7)/7)77/7 ) Ï 2126 := 11 + ((((1 + 1) × (1 + (11 + 11)))1+1 ) − 1) := 2 + (2 × 22 + 2)2 + 2/2 + 2 := 2 + ((2 × 22 + 2)2 + 2 × (2 + 2)) := 3 + ((33 × ((3/3 + 3) )) + 3/3) := 3 × 3 + (33 × ((3/3 + 3)3 )) := 3 + (3 × 33+3 − ((3/3 + 3)3 )) := 4 + 44 × (44 + 4) := 4 + ((44 × (44 + 4) + 4/4) + 4) := 4 + (44 × (44 + 4) + (44 − 4)/4) := 5 × 5 + (55 − ((5 − 5/5)5 + 5)) := 5 × 5 + (55 − (5 − 5/5)5 ) := ((6 × 6/(6 + 6))6/6+6) − 66 := (6 + 6)/6 + (6 × (6 × (66 − 6) − 6)) := (7 × 7 − ((7 + 7 + 7)/7)) := 7 + (7 × (7 × (7 × 7 − 7) + 7) + 7) := 7/7 + ((((7 + 7)/7)77/7 ) + 77) := (8/((8 + 8)/8)) + (88 × (8 + 8 + 8)) := 8 + ((88 × (8 + 8 + 8)) + 8/8) := 8 + (((88 × (8 + 8 + 8)) − ((8 + 8)/8)) + 8) := 9 + ((9 × (9 × (9 + 9 + 9) − 9)) + 9/9) := 9 + ((99/9) × (999/9 + 9 × 9)) := 9 + ((9 × (9 × (9 + 9 + 9) − 9)) + (99/9)) 3 5 5 := 5 + (((5 − (5 − 5/5) ) + 5) + 5) := (((66 − 6)/6) + 6 × 6) (6+6)/6 (7+7)/7 Ï 2117 := 1 + (((1 + 1) × (1 + (11 + 11)))1+1 ) Ï 2122 := 11 + (((1 + 1) × 1111) − 111) Ï 2127 := 11 + (((1 + 1) × (1 + (11 + 11)))1+1 ) := 2/2 + (2 × 22 + 2)2 := 2 + (2 × 22 + 2)2 + 2 + 2 := 22/2 + (2 × 22 + 2)2 := 33/3 + (3 × (33+3 − 33 )) := 3 × 3 + ((33 × ((3/3 + 3)3 )) + 3/3) := 3 × 33+3 − (33 + 33) := (44 − 4)/4 + 44 × (44 + 4) := 4 + (44 × (44 + 4) + 44/4) := 4 + (44 × (44 + 4) + 4/4) 5 5 := 5 + ((55/5 − (5 − 5/5) ) + 5 ) := 5 + (((55/5 − (5 − 5/5) ) + 5 ) + 5) := 5 × 5 + ((5/5 − (5 − 5/5)5 ) + 55 ) := (6 × (6 × (66 − 6) − 6)) − 6/6 − 6 := (6 × (6 × (66 − 6) − 6)) − (6 + 6)/6 := 6 + (((6 × 6/(6 + 6))6/6+6) − 66) := 7 + (((7 + 7 + 7)/7)7 − 77) := 7 + ((7 × (7 × (7 × 7 − 7) + 7) + 7/7) + 7) := 77 + (7 × 7 × (7 × 7 − 7) − (7/7 + 7)) := 8 + ((88/8 + 8) × 888/8) := 8 + ((88 × (8 + 8 + 8)) + ((8 + 8)/8)) := 8 + (((88 × (8 + 8 + 8)) − 8/8) + 8) := 99/9 + (9 × (9 × (9 + 9 + 9) − 9)) := 9 + (((9 × (9 × (9 + 9 + 9) − 9)) − ((9 + 9)/9)) + 9) := 9 + (((9/9 + 9 + 9) × 999/9) + 9) 5 151 5 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2128 := (1 + 111) × (((1 + 1) × (11 − 1)) − 1) := 2 × ((2 × (((22 + 2/2)2 ) + 2)) + 2) := 3/3 + (3 × 33+3 − (33 + 33)) Ï 2133 := 1111 + ((1 + 1)11−1 − (1 + 1)) := 22 + (2 × 22 + 2)2 := 22 + (2222 − 222/2) := 3 × (3 3+3 := 33 + ((33 × ((3/3 + 3)3 )) − 3/3) − (3 × (3 + 3))) 4 Ï 2138 := (1 + 1)11 + (11 − 1) × (11 − 1 − 1) 4 := 4 × ((44 × ((4 + 4) + 4)) + 4) := 4 + ((4 − 4/4) + 4 × (4 + 4)) := 4 + ((4444 − 4)/4 + 4 × 44 ) := 5 × 5 + ((((5 + 5)/5)55/5 ) + 55) := 55 + (((5 + 5)/5)5 − (5 − 5/5)5 ) := 5 × 555 − ((55 + 55 + 5)/5) := 6 + ((6 × (6 × (66 − 6) − 6)) − ((6 + 6)/6)) := 6 + ((((6 × 6/(6 + 6))6/6+6) − 66) + 6) := 6 × 6 × (66 − 6) − ((66 + 66)/6) := 77 + (7 × 7 × (7 × 7 − 7) − 7) := 77 + (7 × 7 × (7 × 7 − 7) − ((7 + 7)/7)) := ((7 + 7 + 7)/7)7 − 7 × 7 := 8 + ((88 × (8 + 8 + 8)) + 8) := (88/8 − 8) × ((8 × 88 − 8/8) + 8) := 88 + ((8 × (8 + 8) × (8 + 8)) + ((8 + 8)/8)) := (9/9 + 9 + 9) × ((999 + 9)/9) := (9 + 9 + 9) × (9 × 9 − ((9 + 9)/9)) := 9 + ((((9 + 9)/9)99/9 ) + 9 × 9) Ï 2129 := (1 + 1)11 + (11 − 1 − 1)1+1 Ï 2134 := 1111 + ((1 + 1)11−1 − 1) 2 := 2 + ((2 × 22 + 2) + 22/2) 3 := 2222 − 2 × 2 × 22 33/3 := 3 × 3 + (3 − 3/3) 4 Ï 2139 := 1 + ((1 + 1)11 + (11 − 1) × (11 − 1 − 1)) := 3/3 + (3 × (3 4 3+3 := 22 + ((2 × 22 + 2)2 + 2/2) − (3 × (3 + 3)))) 4 := (4 − 4/4) + 4 × (4 + 4) := 4 × 4 + (4444 − 4)/4 5 := 33 + (33 × ((3/3 + 3)3 )) := 4 + (4444/4 + 4 × 44 ) 5 := 5 + ((5 × (5 × (55 + 5))) + (5 − 5)/5) := 555 + ((5 − 5/5) + 555) := 5 × 555 − ((55 + 55 )/5) := 6 + ((6 × (6 × (66 − 6) − 6)) − 6/6) := ((66 − 6)/6) + (6 × (6 × (66 − 6) − 6)) := ((66 × 66 − 6)/((6 + 6)/6)) − 6 × 6 := 7/7 + ((7 × 7 × (7 × 7 − 7) − 7) + 77) := 77 + 7 × 7 × (7 × 7 − 7) − 7/7 := 7/7 + (((7 + 7 + 7)/7)7 − 7 × 7) := 88 + ((8 × (8 + 8) × (8 + 8)) − ((8 + 8)/8)) := 8 + (((88 × (8 + 8 + 8)) + (88/8)) + 8) := 9/9 + ((9 + 9 + 9) × (9 × 9 − ((9 + 9)/9))) := ((99/9 + 9) × 999/9) − 9 × 9 := 8 + (((88 × (8 + 8 + 8)) + 8/8) + 8) 99/9 := 9 × 9 + (((9 + 9)/9) ) Ï 2130 := 1 + ((1 + 1)11 + (11 − 1 − 1)1+1 ) Ï 2135 := 1111 + (1 + 1)11−1 Ï 2140 := 11 + ((1 + 1)11 + (11 − 1 − 1)1+1 ) := 22+2 + ((2 × 22 + 2)2 − 2) := (222/2 + 2222)/2 := 2 + ((2 × 22 + 2)2 + 22) := (33 + 3) × (((3 + 3)3 − 3)/3) := 3 + ((33 − 3/3) × (3 × 33 + 3/3)) := 33 + ((33 × ((3/3 + 3)3 )) + 3/3) := 4 × 4 + (44 × (44 + 4) + (4 + 4)/4) := 4 × 44 + 4444/4 := 4 + ((4 + 4) × (44/4 + 44 )) := 5 + (5 × (5 × (5 × 5 + 55 + 5))) := 5 + ((5 × (5 × (5 × 5 + 55 + 5))) + 5) := (5 − 5/5) × ((555 − 5 × 5) + 5) := 6 + (6 × (6 × (66 − 6) − 6)) := 66/6 + (6 × (6 × (66 − 6) − 6)) := ((66 − 6)/6) × (6 × 6 × 6 − (6 + 6)/6) := (7 − 7/7) × ((77 + 7)/7 + 7 × 7 × 7) := 77 + 7 × 7 × (7 × 7 − 7) := 8 + (((88 × (8 + 8 + 8)) + ((8 + 8)/8)) + 8) := (7 + 7)/7 + (((7 + 7 + 7)/7)7 − 7 × 7) := 88 + ((8 × (8 + 8) × (8 + 8)) − 8/8) := 88 + (((8 × 8 × 8 × 8) + 8)/((8 + 8)/8)) := 9 + (((9 × (9 × (9 + 9 + 9) − 9)) + (99/9)) + 9) := (99/9 + 9) × ((99 − 9/9) + 9) 99/9 := 9/9 + ((((9 + 9)/9) ) + 9 × 9) Ï 2131 := 1 + (1 + ((1 + 1)11 + (11 − 1 − 1)1+1 )) 2 := 2 + (((2 × 22 + 2) + 22/2) + 2) 3 3 := (((3 + 3) × ((3 + 3) − 3)) + 3)/3 4 4 := 4 + ((4 − 4/4) × (4/4 + 4) ) 5 5 Ï 2136 := 1 + (1111 + (1 + 1)11−1 ) Ï 2141 := (1 + 1)11 + (((1 + 1)11−1 − 1)/11) 2 := 2222 − (2/2 + 2)2+2 := 22 + ((2 × 22 + 2) − 2) := 3 + (3 × (3 3+3 − (3 × (3 + 3)))) 4 := (33/3)3 + (33 × (33 + 3)) := (4 − 4/4 + 4)4 − 44 − 4 := (4 + 4) × (44/4 + 4 ) 5 5 := 5 + ((5 × 5 − (5 − 5/5) ) + 5 ) := 5 + (((5 × 5 − (5 − 5/5) ) + 5 ) + 5) := 6 + ((6 × (6 × (66 − 6) − 6)) + 6/6) := 6 + ((6 × (6 × (66 − 6) − 6)) + 6) := 6 + ((6 × (6 × (66 − 6) − 6)) + (66/6)) := 7/7 + (7 × 7 × (7 × 7 − 7) + 77) := 7 + (7 × 7 × (7 × 7 − 7) − 7/7 + 77) := 8 + ((88 × (8 + 8 + 8)) + (88/8)) := 88 + (8 × (8 + 8) × (8 + 8)) := 8 + ((88/8 − 8) × ((8 × 88 − 8/8) + 8)) := ((99/9 + 9) × ((99 − 9/9) + 9)) − 9 := 9 + ((((9/9 + 9 + 9) × 999/9) + 9) + 9) := 9 + ((9 × (99 + 9 × 9)) + (((9 + 9)/9)9 )) 7 := ((7 + 7 + 7)/7) − (7 × 7 + 7) Ï 2132 := 1111 + ((1 + 1)11−1 − 1 − 1 − 1) Ï 2137 := 1 + (1 + (1111 + (1 + 1)11−1 )) := ((5 − 55 )/5) + (5 × 555 − (5 + 5)) Ï 2142 := (1 + 1) × ((11 − 1 − 1) × (111+1 − (1 + 1))) := 22+2 + (2 × 22 + 2)2 := 22 + ((2 × 22 + 2)2 − 2/2) := 2 + (((2 × 22 + 2)2 + 22) + 2) := (33 − 3/3) × (3 × 33 + 3/3) := 3 + ((3 × (33+3 − (3 × (3 + 3)))) + 3/3) := 3 × ((33+3 − (3 × (3 + 3))) + 3) := 4 + (44 × (44 + 4) + 4 × 4) := 4/4 + ((4 + 4) × (44/4 + 44 )) := 4/4 + (4 − 4/4 + 4)4 − 44 − 4 (5+5)/5+5 := ((5 − (5 + 5)/5) ) − 55 := 6 + ((6 × (6 × (66 − 6) − 6)) + ((6 + 6)/6)) 77/7 := 7 + ((((7 + 7)/7) ) + 77) := 8 + ((88 × (8 + 8 + 8)) + ((88 + 8)/8)) 9 := (((9 + 9)/9) ) + (9 × (99 + 9 × 9)) (5+5)/5+5 := 5 + (((5 − (5 + 5)/5) ) − 55) := 6 + (((6 × (6 × (66 − 6) − 6)) + 6/6) + 6) 7 := (5 − 5/5 + 5) × (((5 − (5 + 5)/5)5 ) − 5) := 6 × (66 × 66/(6 + 6) − 6) := ((7 + 7 + 7)/7) − (7/7 + 7 × 7) := 7 + (7 × 7 × (7 × 7 − 7) + 77) := 8/8 + ((8 × (8 + 8) × (8 + 8)) + 88) := (8/8 + 8 + 8) × (8 × (8 + 8) − ((8 + 8)/8)) := 9 + ((9/9 + 9 + 9) × ((999 + 9)/9)) := (9 + 9) × ((99/9 + 99) + 9) 152 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2143 := 11 × ((1 + 1 + 1 + 11)1+1 − 1) − 1 − 1 Ï 2148 := 111 + ((1 + 1)11 − 11) Ï 2153 := 111 + ((1 + 1)11 − ((1 + 1) × (1 + 1 + 1))) := 2 + (2222 − (2/2 + 2)2+2 ) := 2 × ((2 + 2 + 2)2+2 − 222) := ((22/2 + 2)2/2+2 ) − (2 × 22) := 3 × 33+3 − (33/3 + 33) := 3 + ((3 × (33+3 − 3)) − 33) := 3 × 33+3 − 3/3 − 33 := (44 − 4)/4 + (4 + 4) × (44 + 4) := 4 + ((4 + 4) × ((44 + 4 + 4) + 4)) := 4 + (((((4 − 4/4) + 4)4 ) − 44 ) + 4) := 5 × 555 − ((55 + 5 + 5)/5 + 5) := 5 × 555 − (55 + 5 + 5)/5 := 5 + (5 × 555 − (55 + 5 + 5)/5) := 6 × 6 × (66 − 6) − (66/6 + 6) := 6 × 6 × (66 − 6) − 6 − 6 := 6 × 6 × (66 − 6) − 6/6 − 6 := 7 + ((7 × 7 × (7 × 7 − 7) + 77) + 7/7) := 77 × (7 + 7 + 7 + 7) − (7/7 + 7) := 7 + ((((7 + 7)/7)77/7 ) + 7 × (7 + 7)) := 8 + (((8 × (8 + 8) × (8 + 8)) − 8/8) + 88) := 8 + ((((8 × 8 × 8 × 8) + 8)/((8 + 8)/8)) + 88) := 8 + ((((8 × (8 + 8) × (8 + 8)) + 88) + 8/8) + 8) := 9/9 + ((9 + 9) × ((99/9 + 99) + 9)) := 9/9 + ((((9 + 9)/9)99/9 ) + 99) := (9 + 9)/9 + (((9 + 9) × (999/9 + 9)) − 9) Ï 2144 := 11 × ((1 + 1 + 1 + 11)1+1 − 1) − 1 := 2 2+2 × (22 × (2 + 2 + 2) + 2) 3 := (33 − 3/3) × (((3/3 + 3) ) + 3) 4 := (4 + 4) × ((4 + 4 + 4) + 4) 5 := 5 × 555 − ((5 + 5)/5 + 5) Ï 2149 := 1 + (111 + ((1 + 1)11 − 11)) Ï 2154 := (11 × (1 + 1 + 1 + 11)1+1 ) − 1 − 1 := 22 + ((2 × 22 + 2)2 + 22/2) := 222 + (2 × (2 × 222 − 2)) := 3 × 33+3 − (33/3 + 33 ) := 3 × 33+3 − 33 := 4 + ((((4 − 4/4) + 4)4 ) − 44 ) := 44 + (44 × (44 + 4) − (4 + 4)/4) := 5 × 555 − (5 + 5)/5 := 5 + (5 × 555 − (55 + 5)/5) := (6 − 66)/6 + (6 × 6 × (66 − 6) − 6) := 6 × 6 × (66 − 6) − 66/6 := 6 × 6 × (66 − 6) − 6 := 7 + (((7 + 7 + 7)/7)7 − (7/7 + 7 × 7)) := 77 × (7 + 7 + 7 + 7) − 7 := ((7 + 7)/7) × (77 × (7 + 7) − 7/7) := 8 + ((8 × (8 + 8) × (8 + 8)) + 88) := (88 × (8 + 8 + 8)) + 888/(8 + 8 + 8) := 8 × 8 + ((88/8 + 8) × (888 − 8)/8) := (9 + 9)/9 + ((9 + 9) × ((99/9 + 99) + 9)) := 9 + ((99/9 + 9) × ((99 − 9/9) + 9)) := ((9 + 9 + 9)/9) × (9 × 9 × 9 − (99/9)) 5 Ï 2145 := 11 × ((1 + 1 + 1 + 11)1+1 − 1) := 22/2 × (((2 2+2 2 − 2) ) − 2/2) Ï 2150 := 1 + (1 + (111 + ((1 + 1)11 − 11))) Ï 2155 := (11 × (1 + 1 + 1 + 11)1+1 ) − 1 := 222 + (2 × (2 × (222 − 2))) := ((22 × ((22+2 − 2)2 )) − 2)/2 := (3 × 3 + 3/3) × ((3 + 3)3 − 3/3) := 3/3 + (3 × 33+3 − 33) := 4 + (4 − 4/4 + 4)4 − 44 + 4/4 := 44 + (44 × (44 + 4) − 4/4) := 55 × (55 − (55/5 + 5)) := 5 × (555 − 5 × 5 × 5) := 5 + 5 × (555 − 5 × 5 × 5) := (66 − 6/6) × (66 × 6/(6 + 6)) := (6 − 66)/6 + 6 × 6 × (66 − 6) := 6/6 + (6 × 6 × (66 − 6) − 6) := 7 + (((7 + 7 + 7)/7)7 − 7 × 7) := 7/7 + (77 × (7 + 7 + 7 + 7) − 7) := 77 × (7 + 7 + 7 + 7) − 7/7 := 8 + (((8 × (8 + 8) × (8 + 8)) + 88) + 8/8) := (8/8 + 8 + 8 + 8) × (88 − ((8 + 8)/8)) := 8 + (((8 × (8 + 8) × (8 + 8)) + (88/8)) + 88) := (9/9 + 9) × (((9 + 9) × (99 + 9) − 9)/9) := 9 + (((((9 + 9)/9)99/9 ) − 9/9) + 99) := (3 × (3 3+3 − 3)) − 33 4 := (((4 − 4/4) + 4) ) − 4 4 99/9 := 99 + ((((9 + 9)/9) ) − ((9 + 9)/9)) Ï 2146 := 1 + 11 × ((1 + 1 + 1 + 11)1+1 − 1) := 2 + (2 × 2 × (22 + 2) + 2 := 3/3 + ((3 × (3 3+3 22/2 ) − 3)) − 33) 4 4 := 4/4 + ((((4 − 4/4) + 4) ) − 4 ) Ï 2151 := 1 + (1 + (1 + (111 + ((1 + 1)11 − 11)))) 2 2 Ï 2156 := 11 × (1 + 1 + 1 + 11)1+1 := (2/2 + 2) × ((22 − 2)/2 − 2) := 22 × (2 × 2 × (22 + 2) + 2) := 3 × (33+3 − (3 × 3 + 3)) := 3 + (3 × 33+3 − (3/3 + 33)) 4 := 4 × (4 + 4) + 4444/4 := 44 + 44 × (44 + 4) := ((5 − 5 )/5) + (5 × 555 − 5) := ((5 − 55 )/5) + 5 × 555 := 55 + (55 − (5 − 5/5)5 ) := (6 × 6 + 6/6) × (((6 + 6)/6)6 − 6) := ((6 × 6/(6 + 6))6/6+6) − 6 × 6 := (6 + 6)/6 + (6 × 6 × (66 − 6) − 6) := (7 + 7)/7 + (77 × (7 + 7 + 7 + 7) − 7) := 77 × ((7 + 7 + 7) + 7) := (8/8 + 8) × (888/8 + 8 × (8 + 8)) := (8 − 8/8) × ((88 × (8 × 8 − 8))/(8 + 8)) := ((9 + 9) × (999/9 + 9)) − 9 := 9 + ((((9 + 9)/9)99/9 ) + 99) 5 77/7 := 7 × (7 + 7) + (((7 + 7)/7) ) := 8 + (((8 × (8 + 8) × (8 + 8)) + ((8 + 8)/8)) + 88) 99/9 := 99 + ((((9 + 9)/9) ) − 9/9) Ï 2147 := 111 + ((1 + 1)11 − (1 + 11)) Ï 2152 := 1 + (1 + (1 + (1 + (111 + ((1 + 1)11 − 11))))) Ï 2157 := 111 + (1 + 1)11 − (1 + 1) := 222 + ((2 × 22)2 − 22/2) := (2 + 2 + 2)2 + (2 × 22 + 2)2 := 222 + ((2 × 22)2 − 2/2) := 3 × 33 + (3 − 3/3)33/3 := 3/3 + (3 × (33+3 − (3 × 3 + 3))) := 3 + (3 × 33+3 − 33) := 44 + (44 × (44 + 4) − 4) := 44 + (44 × (44 + 4) + 4/4) 4 4 := 4 + (4 + 4) × (4 + 4) + (4 − 4)/4 5 5 := 5 × 555 + ((((5 − 5 ) + 5)/5) − 5) := 5 × 555 + (((5 − 5 ) + 5)/5) := 5 + ((((5 − 55 ) + 5)/5) + 5 × 555) := 6 × 6 × (66 − 6) − (6/6 + 6 + 6) := 6 × 6 × (66 − 6) − ((6 + 6)/6 + 6) := 6 × 6 × (66 − 6) − 6 × 6/(6 + 6) := 77 × (7 + 7 + 7 + 7) − ((7 + 7)/7 + 7) := 88 + ((8 × (8 + 8) × (8 + 8)) + (88/8)) 99/9 := 99 + (((9 + 9)/9) ) 7 := 7 + ((((7 + 7 + 7)/7) − 7 × 7) + 7) := 7/7 + 77 × (7 + 7 + 7 + 7) := 8 + (((8 × (8 + 8) × (8 + 8)) + 88) + 8) := ((8 + 8) × (8 × (8 + 8) + 8)) − (88/8 + 8) := 9/9 + (((9 + 9) × (999/9 + 9)) − 9) := ((9 + 9 + 9)/9) × (9 × 9 × 9 − (9/9 + 9)) 153 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2158 := 111 + (1 + 1)11 − 1 Ï 2163 := 1 + (1 + (1 + (1 + (111 + (1 + 1)11 )))) Ï 2168 := 111+1 + ((1 + 1)11 − 1) := 222 + (2 × 22)2 := 2 + ((222/2 + 222/2 ) + 2) := 2 + ((2 × (2 × (222 + 2))) + 222) := 3 + ((3 × 33+3 − 33) + 3/3) := 3 + (3 × (33+3 − 3 × 3)) := (3 × (33+3 − (3 + 3))) − 3/3 := 44 × (4 + 4) + (444 − 4)/4 := 4 + (444/4 + 44 × (4 + 4)) := (4 + 4) × ((44/4 + 44 ) + 4) := (5 + 5)/5 × ((5 − 5/5)5 + 55) := 5 + ((5 + 5)/5 × ((5 − 5/5)5 + 55)) := 5 × 5 × 5 + ((((5 + 5)/5)55/5 ) − 5) := 6 × 6 × (66 − 6) − (6 + 6)/6 := (6 × 6/(6 + 6)) + 6 × 6 × (66 − 6) := 6 + (6 × 6 × (66 − 6) + ((6 + 6)/6)) := (7 + 7)/7 + 77 × (7 + 7 + 7 + 7) := 7 + 77 × (7 + 7 + 7 + 7) := ((7 + 7)/7) × ((77 × (7 + 7) − 7/7) + 7) := (888 − 8)/8 + (8 × (8 + 8) × (8 + 8)) := ((88/8 − 8)8−8/8 ) − 8 − 8 − 8 := ((8 + 8) × (8 × (8 + 8) + 8)) − 8 := ((9 + 9)/9) × ((999 − 9/9) + 9 × 9) := ((9 + 9 + 9)/9) × ((9 × 9 × 9 − 9) + 9/9) := 9 × 9 × (9 + 9 + 9) − (9/9 + 9 + 9) Ï 2159 := 111 + (1 + 1)11 := 222/2 + 2 := 3 × 3 3+3 Ï 2164 := 1 + (1 + (1 + (1 + (1 + (111 + (1 + 1)11 ))))) 22/2 3 − (3 + 3/3) 4 := (22 − 2)2 + (2 × 22 − 2)2 := (22/2)2 + 222/2 := (((3 × 3 + 3/3) + 3)3 ) − 33 := 3 × (33+3 − (3 + 3)) := 4 + (((4 + 4)4 ) − 44 × 44) := 444/4 + 4 × (4 + 4) 5 Ï 2169 := 111+1 + (1 + 1)11 5 (5+5)/5 := 4 + ((4/4 + 4) × (444 − 44/4)) := 5 + ((5 × 555 − (5 + 5)/5) + 5) := 5 − (((5 × 5 + 5/5) + 5) := 6 × 6 × (66 − 6) − 6/6 := 6 + (6 × 6 × (66 − 6) − ((6 + 6)/6)) ) := 5 × 555 − ((55 × 55 + 5)/5) := ((66 × 66 − 6)/((6 + 6)/6)) − 6 := 7 + (77 × (7 + 7 + 7 + 7) + 7/7) := 777/7 + 7 × 7 × (7 × 7 − 7) := 888/8 + (8 × (8 + 8) × (8 + 8)) := ((8 + 8) × (8 × (8 + 8) + 8)) − (88 + 8)/8 := 8/8 + (((8 + 8) × (8 × (8 + 8) + 8)) − 8) := ((9 + 9) × (999/9 + 9)) − 9/9 := 9999/9 + (9 × (99 + 9 + 9)) := 9 × 9 × (9 + 9 + 9) − (9 + 9) 7 := 7 × 7 + (((7 + 7 + 7)/7) − 77) Ï 2160 := 1 + (111 + (1 + 1)11 ) Ï 2165 := 111 + ((1 + 1)11 + ((1 + 1) × (1 + 1 + 1))) Ï 2170 := 1 + (111+1 + (1 + 1)11 ) := 2 + ((2 × 22)2 + 222) := 222 + ((2 × (22 − 2) + 2/2)2 ) := 2 × ((22/2 + 22)2 − (2 + 2)) := 3 × (33+3 − 3 × 3) := 33/3 + (3 × 33+3 − 33) := 3/3 + (3 × (33+3 − (3 + 3))) := ((4 + 4)4 ) − 44 × 44 := (4/4 + 4) × (444 − 44/4) := (4/4 + 4) × ((4 − 44)/4 + 444) := (55 + 5) × (55/5 + 5 × 5) := ((5 − 5/5) × 555) − 55 := 5 + (((5 − 5/5) × 555) − 55) := 6 × 6 × (66 − 6) := 6 + (6 × 6 × (66 − 6) − 6/6) := ((66 − 6)/6) + 6 × 6 × (66 − 6) := (77/7 − 7) × (7 × 77 + 7/7) := 7 + (77 × (7 + 7 + 7 + 7) + ((7 + 7)/7)) := 7 + (77 × (7 + 7 + 7 + 7) + 7) := (8 + 8) × ((8 × (8 + 8) − 8/8) + 8) := ((8 + 8) × (8 × (8 + 8) + 8)) − 88/8 := (8 + 8)/8 + (((8 + 8) × (8 × (8 + 8) + 8)) − 8) := (9 + 9) × (999/9 + 9) Ï 2161 := 1 + (1 + (111 + (1 + 1)11 )) 99/9 := 9 + (((((9 + 9)/9) ) + 99) + 9) Ï 2166 := 111+1 + ((1 + 1)11 − (1 + 1 + 1)) := 9/9 + (9 × 9 × (9 + 9 + 9) − (9 + 9)) Ï 2171 := 1 + (1 + (111+1 + (1 + 1)11 )) := 2 + (222/2 + 222/2 ) := 222 + (2 × (2 × (222 + 2))) := 2 + ((22/2)2 + 222/2 ) := 3/3 + (3 × (33+3 − 3 × 3)) := (3 × (33+3 − (3 + 3))) − 3 := 3 + ((3 × (33+3 − (3 + 3))) − 3/3) := 4 × 4 + ((((4 − 4/4) + 4)4 ) − 44 ) := (4 − 44)/4 + (4 + 4) × (4 × 4 + 44 ) := (4 + 4) × (4 × 4 + 44 ) − (4/4 + 4) := 5 + ((55 − (5 − 5/5)5 ) + 55 ) := 5 + (((55 − (5 − 5/5)5 ) + 55 ) + 5) := ((5 − 55 )/5) + ((5 × (555 + 5)) − 5) := 6/6 + 6 × 6 × (66 − 6) := 6 + 6 × 6 × (66 − 6) := 66/6 + 6 × 6 × (66 − 6) := 7 + (((7 + 7)/7) × (77 × (7 + 7) − 7/7)) := ((7 + 7 + 7)/7)7 − (7 + 7 + 7) := 7 + ((77 × (7 + 7 + 7 + 7) + 7/7) + 7) := 8/8 + ((8 + 8) × ((8 × (8 + 8) − 8/8) + 8)) := (8 − 88)/8 + ((8 + 8) × (8 × (8 + 8) + 8)) := ((88/8 − 8)8−8/8 ) − 8 − 8 := 9/9 + ((9 + 9) × (999/9 + 9)) := 9 × 9 × (9 + 9 + 9) − (((99 + 9)/9) + 9) := (9 + 9)/9 + (9 × 9 × (9 + 9 + 9) − (9 + 9)) Ï 2162 := 1 + (1 + (1 + (111 + (1 + 1)11 ))) := 2 + (((2 × 22)2 + 222) + 2) Ï 2167 := 11 × (1 + (1 + 1 + 1 + 11)1+1 ) Ï 2172 := 1 + (1 + (1 + (111+1 + (1 + 1)11 ))) := (22/2)2 + 222/2 − 2 := 2222 − ((2 × (22 + 2)) + 2) := (3 × (33+3 − 3)) − 33/3 := 3 + (3 × (33+3 − (3 + 3))) := 4 + ((444 − 4)/4 + 44 × (4 + 4)) := 4 + ((444/4 + 44 × (4 + 4)) + 4) := (4 + 4) × (4 × 4 + 44 ) − 4 := 5 × 555 + (((55 − 55 ) + 5)/5) := ((5 + 5)/5 × 5555/5) − 55 := (5 + 5)/5 × (5555/5 − 5 × 5) := (6 + 6)/6 + 6 × 6 × (66 − 6) := 6 + (6 × 6 × (66 − 6) + 6/6) := 6 + (6 × 6 × (66 − 6) + 6) := 7 + (77 × (7 + 7 + 7 + 7) − 7/7) := 77/7 + 77 × (7 + 7 + 7 + 7) := ((7 + 7 + 7)/7)7 − (7/7 + 7 + 7) := (8 + 8)/8 + ((8 + 8) × ((8 × (8 + 8) − 8/8) + 8)) := ((8 + 8) × (8 × (8 + 8) + 8)) − (8/8 + 8) := ((8 + 8) × (8 × (8 + 8) + 8)) − (8/((8 + 8)/8)) := (9 + 9)/9 + ((9 + 9) × (999/9 + 9)) := 99/9 × ((99 − 9/9) + 99) := ((99 + 9)/9) × ((9/9 + 99) + 9 × 9) := 3 + (3 × 3 3+3 3 − (3 + 3/3)) 154 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2173 := 1 + (1 + (1 + (1 + (111+1 + (1 + 1)11 )))) Ï 2178 := (1 + 1) × (11 × (1 + 1 + 1))1+1 Ï 2183 := 1 + (1 + (1 + ((1 + 1)11 + (11 × (1 + 11))))) := 2 + (((22/2)2 + 222/2 ) + 2) := 2 × (22/2 + 22)2 := ((2 × (22 + 2))2 ) − (22/2)2 := 3 × 33+3 − (33/3 + 3) := 3 × (33+3 − 3) := 3 × 33+3 − (3/3 + 3) := 4/4 + ((4 + 4) × (4 × 4 + 44 ) − 4) := (4 + 4)/4 + (4 + 4) × (4 × 4 + 44 ) := ((4 − 4/4)4+4−4/4 ) − 4 := 5 × 5 × 5 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + 5 × 5 × 5) := (((5 + 5)/5)5 + 5) × (55 − 5/5 + 5) := 6 + ((6 × 6 × (66 − 6) + 6/6) + 6) := 6 × 66 × 66/(6 + 6) := (6 × 6 + 6/6) × (66 − (6/6 + 6)) 7 := (77/7 + 7) × (((7 + 7)/7) − 7) := 7 + (((7 + 7 + 7)/7)7 − (77/7)) := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) − (88/8)) := (8 + 8)/8 + ((8 + 8) × (8 × (8 + 8) + 8)) := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) − 8/8) := 9 + (9999/9 + (9 × (99 + 9 + 9))) := 9 × 9 × (9 + 9 + 9) − 9 := ((9 − 9 × 9)/(9 + 9)) + 9 × 9 × (9 + 9 + 9) 7 := ((7 + 7 + 7)/7) − (7 + 7) Ï 2174 := (1 + 1) × (1111 − ((1 + 1) × (1 + 11))) := 2 × ((22/2 + 22)2 − 2) Ï 2179 := 1 + ((1 + 1) × (11 × (1 + 1 + 1))1+1 ) := (((22+2+2 + 2)2 ) + 2)/2 3+3 Ï 2184 := (1 + 1 + 1) × ((11 − 1 − 1)1+1+1 − 1) := 2 + (2222 + (2 × (2 − 22))) := 3 × 33+3 − 3 := (3 × (33+3 − 3)) − (3/3 + 3) := 3/3 + (3 × (3 := ((((4 + 4)4 ) − 4) + 44 )/((4 + 4)/4) := 4 + ((4 + 4) × (4 × 4 + 44 ) − 4/4) := 4 + ((4 + 4) × (4 × 4 + 44 ) + 4) := (5 × (555 + 5)) − (55 + 5)/5 := 5 + ((5 × (555 + 5)) − (55 + 5)/5) := ((5 + 5)/5 + 5) × (55 − 5)/(5 + 5) := 6 + ((6 × 6 × (66 − 6) + ((6 + 6)/6)) + 6) := 6/6 + (6 × 66 × 66/(6 + 6)) := 6 + (6 × 66 × 66/(6 + 6)) − 3)) 7 := 7/7 + (((7 + 7 + 7)/7)7 − (7 + 7)) := ((7 + 7 + 7)/7) − (7/7 + 7) := 77 + 7 × (7 × (7 × 7 − 7) + 7) := ((8 + 8) × (8 × (8 + 8) + 8)) − (8 + 8)/8 := ((88/8 − 8)8−8/8 ) − 8 := 8 + ((8 + 8) × (8 × (8 + 8) + 8)) := ((9 + 9)/9) × (((99 × 99) − (9 + 9))/9) := 9/9 + (9 × 9 × (9 + 9 + 9) − 9) := ((9 + 9 + 9)/9) × (9 × 9 × 9 − 9/9) Ï 2175 := ((1 + 1 + 11)1+1+1 ) − 11 − 11 Ï 2180 := (1 + 1)11 + (11 × (1 + 11)) Ï 2185 := ((1 + 1 + 11)1+1+1 ) − 1 − 11 := ((22/2 + 2)2/2+2 ) − 22 := 2 + (2 × (22/2 + 22)2 ) := ((2/2 + 2)2/2+2+2+2 ) − 2 := (3 × (33+3 − 3)) − 3 := 3 + ((3 × (33+3 − 3)) − 3/3) := 3/3 + (3 × 33+3 − 3) := (4 + 4) × (4 × 4 + 44 ) − 4/4 := 4 + (4 + 4) × (4 × 4 + 44 ) := 4 + (((4 + 4) × (4 × 4 + 44 ) + 4/4) + 4) := 5 × ((555 − 5 × 5 × 5) + 5) := (5 − 5/5) × (555 − 5 − 5) := 5 + ((5 − 5/5) × (555 − 5 − 5)) := (66 × 66 − 6)/((6 + 6)/6) := 66 + ((((6 + 6)/6)66/6 ) + 66) := 6 × (6 × (66 − 6) + 6) − 66/6 := ((7 + 7 + 7)/7)7 − (77 + 7)/7 := ((7 + 7 + 7)/7)7 − 7 := ((8 + 8) × (8 × (8 + 8) + 8)) − 8/8 := 8/8 + (((88/8 − 8)8−8/8 ) − 8) := 9 × 9 × (9 + 9 + 9) − (99 + 9)/9 := (9 + 9)/9 + (9 × 9 × (9 + 9 + 9) − 9) Ï 2176 := (1 + 1) × ((11 × (1 + 1 + 1))1+1 − 1) Ï 2181 := 1 + ((1 + 1)11 + (11 × (1 + 11))) := ((7 + 7 + 7)/7)7 − (7 + 7)/7 := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) + 8/8) := 9 × 9 × (9 + 9 + 9) − (9 + 9)/9 Ï 2186 := ((1 + 1 + 11)1+1+1 ) − 11 := 2222 − (2 + 2 + 2)2 := 2222 − ((2 × 22) + 2) := 2 + ((((22+2+2 + 2)2 ) + 2)/2) := 3 × 33+3 − 33/3 := 3 + (3 × (33+3 − 3)) := (4 + 4) × (4 × 4 + 44 ) := 4 + ((4 + 4) × (4 × 4 + 44 ) + 4/4) := (5 − 5/5) × (555 − (55/5)) := 5 + ((5 × (555 + 5)) + ((5 − 55 )/5)) := ((6 + 6)/6)6 × (6 × 6 − ((6 + 6)/6)) := (66 × 66 + 6)/((6 + 6)/6) := ((7 + 7 + 7)/7)7 − 77/7 := 7/7 + (((7 + 7 + 7)/7)7 − 7) := (8 + 8) × (8 × (8 + 8) + 8) := (88/8 × (888/8 + 88)) − 8 := ((88/8 − 8)8−8/8 ) − 8/8 := 9 × 9 × (9 + 9 + 9) − 99/9 := ((9 + 9 + 9)/9) + (9 × 9 × (9 + 9 + 9) − 9) := 9 × 9 × (9 + 9 + 9) − 9/9 Ï 2177 := ((1 + 1) × (11 × (1 + 1 + 1))1+1 ) − 1 Ï 2182 := 1 + (1 + ((1 + 1)11 + (11 × (1 + 11)))) := 3 × 33+3 − 3/3 := ((4 − 4/4)4+4−4/4 ) − 4/4 := (55 + 5)/5 + (5 × (55 − 5)/(5 + 5)) := ((6 × 6/(6 + 6))6/6+6) − 6/6 := ((7 + 7 + 7)/7)7 − 7/7 Ï 2187 := (1 + 1 + 1)1+(1+1)×(1+1+1) := (((22+2+2 + 2)2 ) − 2)/2 := 2 × ((22/2 + 22)2 + 2) := (2/2 + 2)2/2+2+2+2 := (3 × (33+3 − 3)) − 3/3 := 3 + ((3 × (33+3 − 3)) + 3/3) := 3 × 33+3 := 4/4 + (4 + 4) × (4 × 4 + 44 ) := 4 + ((4 + 4) × (4 × 4 + 44 ) + (4 + 4)/4) := (4 − 4/4)4+4−4/4 := (((5 − 55 ) + 5)/5) + (5 × (555 + 5)) := ((5 − (5 + 5)/5)(5+5)/5+5 ) − 5 := (5 − (5 + 5)/5)(5+5)/5+5 := 6 + (6 × 6 × (66 − 6) + (66/6)) := 6 + (((6 + 6)/6)6 × (6 × 6 − ((6 + 6)/6))) := (6 × 6/(6 + 6))6+6/6 := 7 + ((77 × (7 + 7 + 7 + 7) + 7) + 7) := (7 + 7)/7 + (((7 + 7 + 7)/7)7 − 7) := ((7 + 7 + 7)/7)7 := 8/8 + ((8 + 8) × (8 × (8 + 8) + 8)) := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) − ((8 + 8)/8)) := (88/8 − 8)8−8/8 := 9 × 9 × (9 + 9 + 9) − 9/9 − 9 := ((9 + 9)/9) × ((((99 × 99) + 9) + 9)/9) := 9 × 9 × (9 + 9 + 9) 155 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2188 := 1 + ((1 + 1 + 1)1+(1+1)×(1+1+1) ) Ï 2193 := 1 + ((1 + 1)11 + (1 + 11)1+1 ) Ï 2198 := 1 + ((1 + 1 + 11)1+1+1 ) := 2 + (2222 − (2 + 2 + 2)2 ) := ((2 × (22 + 2))2 ) − 222/2 := 2222 − (22 + 2) := 3/3 + 3 × 33+3 := 3 + (3 × 33+3 + 3) := 33/3 + 3 × 33+3 := 44 + (44 × 44 − 4) := 4/4 + (44 × 44 + 44 ) := 4 + ((44 × 44 + (4 + 4)/4) + 44 ) := 55 + (((5 − 55 )/(5 + 5)) − 55 /5) := 5 + ((((5 − 55 )/(5 + 5)) − 55 /5) + 55 ) := (5 + 5)/5 × (55 × (5 × 5 − 5) − 5/5) := 6/6 + ((6 × 6/(6 + 6))6/6+6) := 6 + ((6 × 6/(6 + 6))6/6+6) := 6 × (6 × (66 − 6) + 6) + (6 + 6)/6 := 7/7 + ((7 + 7 + 7)/7)7 := 7 + (((7 + 7 + 7)/7)7 − 7/7) := 77/7 + ((7 + 7 + 7)/7)7 := 8/8 + ((88/8 − 8)8−8/8 ) := (8/8 + 8 + 8) × (8 × (8 + 8) + 8/8) := 88 + ((88 × (8 + 8 + 8)) − ((8 + 8)/8)) := 9/9 + 9 × 9 × (9 + 9 + 9) := 9 + (((9 + 9 + 9)/9) × (9 × 9 × 9 − 9/9)) := 99/9 + 9 × 9 × (9 + 9 + 9) Ï 2189 := 11 × (((1 + 1) × (11 − 1)1+1 ) − 1) Ï 2194 := ((1 + 1 + 11)1+1+1 ) − 1 − 1 − 1 Ï 2199 := 1 + (1 + ((1 + 1 + 11)1+1+1 )) := 2 + ((2/2 + 2)2/2+2+2+2 ) := 2 + ((2 × 22)2 + 22×(2+2) ) := 2 + ((22/2 + 2)2/2+2 ) := 3 + (3 × 33+3 − 3/3) := (((3 × 3 + 3/3) + 3)3 ) − 3 := 3 + (3 × (33+3 + 3)) := 44 + ((((4 − 4/4) + 4)4 ) − 44 ) := 44 + (44 × 44 + (4 + 4)/4) := ((4/4 + 4) × (444 − 4)) − 4/4 := 5 + (((5 + 5)/5 + 5) × (55 − 5)/(5 + 5)) := (5 × (5 + 5) × 55) − (555 + 5/5) := ((5 + 5) × (55 × (5 − 5/5))) − 5/5 := 6 × 6 × (66 − 6 + 6) − 6/6 − 6 := 6 × (6 × (66 − 6) + 6) − (6 + 6)/6 := 6 + (((6 × 6/(6 + 6))6/6+6) + 6) := (7 + 7)/7 + ((7 + 7 + 7)/7)7 := 7 + ((7 + 7 + 7)/7)7 := (77 + 7)/7 + ((7 + 7 + 7)/7)7 := 88/8 × (888/8 + 88) := 8 + (((88/8 − 8)8−8/8 ) − 8/8) := 88 + ((88 × (8 + 8 + 8)) − 8/8) := 9 + (9 × 9 × (9 + 9 + 9) − ((9 + 9)/9)) := ((99 + 9)/9) + 9 × 9 × (9 + 9 + 9) := (9 + 9)/9 + 9 × 9 × (9 + 9 + 9) Ï 2190 := (11 − 1) × (((1 + 1) × (111 − 1)) − 1) := 2222 − (2 × 2 := 3 + 3 × 3 2+2 Ï 2195 := ((1 + 1 + 11)1+1+1 ) − 1 − 1 := ((22/2 + 2) ) 3+3 := (3 × (3 3+3 2/2+2 )−2 + 3)) − 3/3 Ï 2200 := (1 + 1) × (1111 − 11) := 2222 − 22 := 3 + (((3 × 3 + 3/3) + 3)3 ) := 4 + (((4 − 4/4)4+4−4/4 ) + 4) := (4/4 + 4) × (444 − 4) := 5 × ((5 + 5)/(5 + 5) + 5 × 5 × 5) := (5 × (5 + 5) × 55) − 555 := (5 + 5) × (55 × (5 − 5/5)) := 6 × (6 × (66 − 6) + 6) − 6 := 6 × (6 × (66 − 6) + 6) − 6/6 := 6 + 6 × (6 × (66 − 6) + 6) − (6 + 6)/6 := (7 + 7 + 7)/7 + ((7 + 7 + 7)/7)7 := 7 + (((7 + 7 + 7)/7)7 + 7/7) := 7 + ((((7 + 7 + 7)/7)7 − 7/7) + 7) := ((8 + 8)/8) × (8888/8 − (8 + 8)) := 8 + ((88/8 − 8)8−8/8 ) := 88 + (88 × (8 + 8 + 8)) := ((9 + 9 + 9)/9) + 9 × 9 × (9 + 9 + 9) := 9 + (9 × 9 × (9 + 9 + 9) − 9/9) := (99/9 + 9) × (99/9 + 99) := 44 + (44 × 44 − (4 + 4)/4) 5 Ï 2191 := (1 + 1)11 + (11 × (1 + 1 + 11)) := 2 + (((2/2 + 2)2/2+2+2+2 ) + 2) Ï 2196 := ((1 + 1 + 11)1+1+1 ) − 1 := 2/2 + (2222 − 22) := 2222 − 22 − 2 − 2 3+3 Ï 2201 := 1 + ((1 + 1) × (1111 − 11)) := 3 + (3 × 33+3 + 33/3) := 3 + (3 × 33+3 + 3/3) := 3 × (3 := 4 + ((4 − 4/4)4+4−4/4 ) := 4 + (44 × 44 + 44 ) := 4 + (((4/4 + 4 + 4) + 4)4−4/4 ) := ((5 + 5)/5 + 5) × (55 + 5)/(5 + 5) := (5 − 5/5) × (555 − (5/5 + 5)) := 5/5 + ((5 + 5) × (55 × (5 − 5/5))) := 6 × (6 × (66 − 6) + 6) − 6 + 6/6 := 6 × (6 × (66 − 6) + 6) := 6 + 6 × (6 × (66 − 6) + 6) − 6/6 := 7 + (7 × (7 × (7 × 7 − 7) + 7) + 77) := 7 + (((7 + 7 + 7)/7)7 + ((7 + 7)/7)) := 7 + (((7 + 7 + 7)/7)7 + 7) := 8 + ((((8 + 8) × (8 × (8 + 8) + 8)) − 8/8) + 8) := 8 + (((88/8 − 8)8−8/8 ) + 8/8) := 8/8 + ((88 × (8 + 8 + 8)) + 88) := 9 × 9 + (9999/9 + 999) := 9 + 9 × 9 × (9 + 9 + 9) := 9 × (9 + 9) + ((((9 + 9)/9)99/9 ) − 9) Ï 2192 := (1 + 1)11 + (1 + 11)1+1 2 := (2 × 22) + 2 := 3 + ((3 × 3 2×(2+2) 3+3 − 3/3) + 3) + 3) Ï 2197 := (1 + 1 + 11)1+1+1 := (22/2 + 2) Ï 2202 := (1 + 1) × (1 + (1111 − 11)) 2/2+2 := 2 + (2222 − 22) := ((3 × 3 + 3/3) + 3) 3 := 3 + ((3 × (33+3 + 3)) + 3) := 44 + 44 × 44 := ((4/4 + 4 + 4) + 4)4−4/4 := 44 + (44 × 44 + (44 − 4)/4) := 5 + ((5 − (5 + 5)/5)(5+5)/5+5 ) := ((55 + 5 + 5)/5)5−(5+5)/5 := 5 + ((55 + 5 + 5)/5)5−(5+5)/5 := 6 + (((6 × 6/(6 + 6))6/6+6) − 6/6) := 6 × (6 × (66 − 6) + 6) + 6/6 := 6 + 6 × (6 × (66 − 6) + 6) 7 (7+7+7)/7 := 7 + ((((7 + 7 + 7)/7)7 + 7/7) + 7) := 7 + (((7 + 7 + 7)/7) − ((7 + 7)/7)) := (7 − 7/7 + 7) := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) + 8) := ((88 + 8 + 8)/8)88/8−8 := 88 + ((88 × (8 + 8 + 8)) + ((8 + 8)/8)) := 9 + (9 × 9 × (9 + 9 + 9) + 9/9) := ((9 + 9)/9) × (((9999 − 9)/9) − 9) := 9 × 9 × (9 + 9 + 9) + ((9 × 9 + 9)/(9 + 9)) 156 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2203 := 1 + ((1 + 1) × (1 + (1111 − 11))) := 2 + ((2222 − 22) + 2/2) Ï 2208 := 11 + ((1 + 1 + 11)1+1+1 ) := 2 + (2222 − 2 3 2+2 Ï 2213 := ((1 + 1) × (1 + 1111)) − 11 := 2 + (2222 − 22/2) ) := 3 + ((((3 × 3 + 3/3) + 3) ) + 3) := 3 + (3 × ((33+3 + 3) + 3)) := 33 + (3 × 33+3 − 3/3) := 4 × 4 + ((4 − 4/4)4+4−4/4 ) := (4 + 4) × ((4 × 4 + 44 ) + 4) := 4 + ((44 − 4/4 + 4)(4+4)/4 ) := 5 + ((((5 + 5)/5)55/5 ) + 5 × (5 × 5 + 5)) := (5 − 5/5) × (((5 + 5)/5 − 5) + 555) := ((5 − 5/5) × 555) − ((5 + 5)/5 + 5) := 6 + 6 × (6 × (66 − 6) + 6) + 6/6 := 6 × (6 × (66 − 6) + 6) + 6 + 6 := 6 + (6 × 6 × (66 − 6 + 6) + (66/6)) := 7 + ((((7 + 7 + 7)/7) + ((7 + 7)/7)) + 7) := 7 + ((7 + 7 + 7)/7) + 7 + 7 := 7 + ((7 × (7 × (7 × 7 + 7) − 77)) + 7/7) := 8 + (((88/8 − 8)8−8/8 ) + 8) := 8 + ((88 × (8 + 8 + 8)) + 88) := ((88 + 8 + 8)/8)88/8−8 + 8 + 8 := 9 + ((9 × 9 × (9 + 9 + 9) − ((9 + 9)/9)) + 9) := 9 + (9 × 9 × (9 + 9 + 9) + ((99 + 9)/9)) := (9 + 9 + 9) × (9/9 + 9 × 9) − 9/9 7 Ï 2204 := (1 + 1) × (1 + (1 + (1111 − 11))) 7 Ï 2209 := ((1 + 1) × (1111 − 1)) − 11 := ((2 × 22 + 2/2) + 2) := 2 + ((2222 − 22) + 2) 3+3 2 := (3 × ((33+3 + 3) + 3)) − 3/3 := 3 + ((3 × ((3 := 4 + ((4/4 + 4) × (444 − 4)) := (44 − 4/4 + 4)(4+4)/4 := (5 − 5/5) × ((5 + 5) × 55 + 5/5) := ((5 − 5/5) × 555) − 55/5 := 6 + (6 × 6 × (66 − 6 + 6) + ((6 + 6)/6)) := (66/6 + 6 × 6) + 3) + 3)) + 3/3) (6+6)/6 Ï 2214 := 1 + (((1 + 1) × (1 + 1111)) − 11) := 2222 − 2 × (2 + 2) := 3 × (33+3 + 3 × 3) := (4 + 4)/4 × (4444/4 − 4) := ((5 − 5/5) × 555) − (5/5 + 5) := 6 × (66 × 66/(6 + 6) + 6) := (7 × 7 − (7 + 7)/7)(7+7)/7 := 7 + ((((((7 + 7 + 7)/7)7 − 7/7) + 7) + 7) + 7) := ((8 + 8)/8) × ((8888 − 8)/8 − 8) := (8 × 8 − (8/8 + 8 + 8))(8+8)/8 := (((8 + 8)/8) × 8888/8) − 8 := 9 + ((9 × 9 × (9 + 9 + 9) − 9/9) + 9) := 9 + ((99/9 + 9) × (99/9 + 99)) := 7 + ((7 − 7/7 + 7) (7+7+7)/7 ) Ï 2205 := 1 + ((1 + 1) × (1 + (1 + (1111 − 11)))) 2 := (2/2 + 2 + 2) × ((22 − 2/2) ) Ï 2210 := (11 − 1) × ((1 + 1) × 111 − 1) := 2222 − (2 × (2 + 2 + 2)) := (9 + 9 + 9) × (9/9 + 9 × 9) Ï 2215 := ((1 + 1) × (1 + (1 + 1111))) − 11 := 2 + ((2222 − 22/2) + 2) := 3 + ((3 × (33+3 + 3)) + 33/3) := 33 + (3 × 33+3 + 3/3) := (4/4 + 4) × ((444 − 4) + 4/4) := (4/4 + 4) × (444 − (4 + 4)/4) := (4/4 + 4) × (444 − 4/4) := 5 + ((5 + 5) × (55 × (5 − 5/5))) := ((5 − 5/5) × 555) − 5 − 5 := ((5 − 5/5) × 555) − 5 := 6 + ((((6 × 6/(6 + 6))6/6+6 ) + 6) + 6) := ((6 + 6)/6) × ((6666/6) − 6) := 6 + ((66/6 + 6 × 6)(6+6)/6 ) := 7 × (7 × (7 × 7 + 7) − 77) := 7/7 + (7 × 7 − (7 + 7)/7)(7+7)/7 := 7 + (((((7 + 7 + 7)/7)7 + 7) + 7) + 7) := 8 + ((88 + 8 + 8)/8)88/8−8 := (8/8 + 8 + 8) × (8 × (8 + 8) + ((8 + 8)/8)) := 888/8 + ((88 × (8 + 8 + 8)) − 8) := 9 + (9 × 9 × (9 + 9 + 9) + 9) := 9 × (9 + 9) + (((9 + 9)/9)99/9 ) := 9/9 + (9 + 9 + 9) × (9/9 + 9 × 9) := 3 × ((3 3+3 + 3) + 3) Ï 2206 := 11 + (((1 + 1 + 11)1+1+1 ) − (1 + 1)) Ï 2211 := ((1 + 1) × 1111) − 11 Ï 2216 := (1 + 1) × (1111 − (1 + 1 + 1)) := 2222 − 22/2 := 2222 − (2 + 2 + 2) := 3 × 3 + (((3 × 3 + 3/3) + 3)3 ) := 33 + (3 × 33+3 − 3) := 3 + ((3 × 33+3 − 3/3) + 33 ) := 4 × 4444/(4 + 4) − 4 × 4 := ((4/4 + 4) × (444 − 4/4)) − 4 := (4/4 + 4) × 444 − 4 := 5 + (((5 + 5) × (55 × (5 − 5/5))) + 5/5) := ((5 − 5/5) × (555 − 5/5)) − 5 := (5 − 5/5) × (555 − 5/5) := 6 × (6 × (66 − 6) + 6) + (66 − 6)/6 := (66 + 6/6) × (66 × 6/(6 + 6)) := (((6 + 6)/6) × (6666/6)) − 6 := 7/7 + (7 × (7 × (7 × 7 + 7) − 77)) := 7 + (((7 − 7/7 + 7)(7+7+7)/7 ) + 7) := 7 + ((7 × 7 − (7 + 7)/7)(7+7)/7 ) := ((8 + 8)/8) × (8888/8 − 8) := 8 + ((((88/8 − 8)8−8/8 ) + 8) + 8) := ((88 + 8) × (8 + 8 + 8)) − 88 := 9 + ((9 × 9 × (9 + 9 + 9) + 9/9) + 9) := ((99/9 + 9) × 999/9) − 9 := 9 + ((9 × 9 × (9 + 9 + 9) + (99/9)) + 9) := 2222 − 2 2+2 Ï 2207 := 11 + (((1 + 1 + 11)1+1+1 ) − 1) 2 Ï 2212 := 1 + (((1 + 1) × 1111) − 11) Ï 2217 := ((1 + 1) × (1111 − (1 + 1))) − 1 := ((2 − 22)/2) + 2222 := 2222 − (2/2 + 2 + 2) := 33 + ((3 × 33+3 − 3) + 3/3) := 3 + (3 × 33+3 + 33 ) := ((4 + 4) × ((4 × 4 + 44 ) + 4)) − 4/4 := 4 + ((4 + 4) × ((4 × 4 + 44 ) + 4)) := 4/4 + ((4/4 + 4) × 444 − 4) := ((5 + 5)/5 × (5555/5 − 5)) − 5 := (5 + 5)/5 × (5555/5 − 5) := ((5 + 5)/5 × 5555/5) − 5 := 6 × (6 × (66 − 6) + 6) + 66/6 := ((6 + 6)/6) × ((6666 + 6)/6 − 6) := 6 + ((66 + 6/6) × (66 × 6/(6 + 6))) := 7 + (((((7 + 7 + 7)/7)7 − 7/7) + 7) + 7) := 7 + (7 × (7 × (7 × 7 + 7) − 77)) := 7 × (7 × 7 × 7 − 7) − (((7 + 7)/7)7 + 7) := 8 + (((88 × (8 + 8 + 8)) − 8/8) + 88) := (((8 + 8)/8) × (8888 − 8)/8) − 8 := 8 + ((8 × 8 − (8/8 + 8 + 8))(8+8)/8 ) := 9 + (9 × 9 × (9 + 9 + 9) + (99/9)) := ((9/9 + 9 + 9) + 9) × (9 × 9 − ((9 + 9)/9)) := 999/9 + (9 × (9 × (9 + 9 + 9) − 9)) := (((2 × 22 + 2/2) + 2) ) − 2 := 33/3 + (3 × (3 3+3 + 3)) 157 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2218 := (1 + 1) × (1111 − (1 + 1)) := 3 + ((3 × 3 Ï 2228 := (1 + 1) × (1 + (1 + (1 + 1111))) Ï 2223 := 1 + ((1 + 1) × 1111) := 2 + ((2222 + 2) + 2) := 2/2 + 2222 := 2222 − 2 − 2 3+3 3 + 3 ) + 3/3) := 3 + (3 × 3 3+3 := 33 + ((3 × (33+3 + 3)) − 3/3) + 33) := 4 × 4444/(4 + 4) − 4 := 4 + ((4/4 + 4) × 444 − 4/4) := 4 + ((4/4 + 4) × 444 + 4) := ((5 − 5/5) × 555) − (5 + 5)/5 := 5 + (((5 − 5/5) × 555) − ((5 + 5)/5)) := (5 − 5/5) × (555 + (5 + 5)/5) := ((6 + 6)/6) × ((6666 − (6 + 6))/6) := 6 × 6 + ((6 × 6/(6 + 6)) 6/6+6) := 6 + (((6 + 6)/6) × (6666/6)) := 7 × 7 + (((7 + 7 + 7)/7)7 − (7/7 + 7)) := (7 + 7)/7 × (7777 − 7 − 7)/7 := 7 + (((7 × 7 − (7 + 7)/7) := ((8 + 8)/8) × ((8888 − (8 + 8))/8) := 888/8 + (88 × (8 + 8 + 8)) := 8 + (((8 + 8)/8) × (8888 − 8)/8) := ((9 + 9)/9) × ((9999 − (9 + 9))/9) := 9 + (9 + 9 + 9) × (9/9 + 9 × 9) := 99 + ((((9 + 9)/9)99/9 ) + 9 × 9) Ï 2219 := ((1 + 1) × (1111 − 1)) − 1 := 2222 − 2/2 − 2 (7+7)/7 ) + 7) Ï 2229 := 1 + ((1 + 1) × (1 + (1 + (1 + 1111)))) Ï 2224 := (1 + 1) × (1 + 1111) := 2 + 2222 := 2 + (((2222 + 2/2) + 2) + 2) := 33 + (((3 × 3 + 3/3) + 3)3 ) := 33 + (3 × (33+3 + 3)) := (4/4 + 4) × 444 − 4/4 := 4 + (4/4 + 4) × 444 := 4 + ((4/4 + 4) × (444 + 4/4)) := 33 + (3 × 3 3+3 − 3/3) := ((5 − 5/5) × 555) − 5/5 := (5 − 5/5) × (555 + 5/5) := 5 + ((5 − 5/5) × (555 + 5/5)) := ((66 − 6) × (6 × 6 + 6/6)) − 6/6 := ((6 + 6)/6) × (6666 + 6)/6 := 6 × (6 × 66 − 6) − 666/6 := 7 + ((7 × (7 × (7 × 7 + 7) − 77)) + 7) := ((7 + 7)/7) × (7777 + 7)/7 := 7 × 7 + (((7 + 7 + 7)/7)7 − 7) ) := (8 + 8) × (8 × (8 + 8) + (88/8)) := (8 × (8 × (8 + 8 + 8) + 88)) − 88/8 ) + 9 × (9 + 9)) := ((9 + 9)/9) × (9999 + 9)/9 := 9 + ((99/9 + 9) × 999/9) := 888 + ((88/8) 88/8−8 99/9 := 9 + ((((9 + 9)/9) Ï 2220 := (1 + 1) × (1111 − 1) Ï 2230 := (11 − 1) × (1 + (1 + 1) × 111) := 2 + (2222 + 2/2) := 2222 − 2 := 33 + 3 × 3 Ï 2225 := 1 + ((1 + 1) × (1 + 1111)) 3 := 2 × (2 + 2) + 2222 3 := 33 + (((3 × 3 + 3/3) + 3)3 ) := 3 + ((33 × 3 ) + (33/3) ) 3+3 := (4/4 + 4) × 444 := (4/4 + 4) × (444 + 4/4) := 4 + (4 × 4444/(4 + 4) + 4) := (5 − 5/5) × 555 := 5 + ((5 − 5/5) × 555) := 5 + (((5 − 5/5) × 555) + 5) := (66 − 6) × (6 × 6 + 6/6) := 66 + (6 × 6 × (66 − 6) − 6/6) := 6 + (6 × 6 × (66 − 6) + ((6 + 6)/6)6 ) := ((7 + 7)/7) × (7777 − 7)/7 := 7 × 7 + (((7 + 7 + 7)/7)7 − (77/7)) := 7/7 + ((((7 + 7 + 7)/7)7 − 7) + 7 × 7) := ((8 + 8)/8) × (8888 − 8)/8 := (8/8 + 88) × (8/8 + 8 + 8 + 8) := 8 + (((8 + 8)/8) × 8888/8) := (99/9 + 9) × 999/9 := 99/9 + (9 + 9 + 9) × (9/9 + 9 × 9) := 9 + (((99/9 + 9) × 999/9) + 9/9) Ï 2221 := ((1 + 1) × 1111) − 1 Ï 2231 := 11 + ((1 + 1) × (1111 − 1)) := 2 + (2222 + 2) := 2222 − 2/2 := 3/3 + (3 × 3 Ï 2226 := (1 + 1) × (1 + (1 + 1111)) 3+3 + 33) := 3 + ((3 × 3 3+3 := 22/2 + (2222 − 2) := 33 + (3 × 33+3 + 33/3) + 33) + 3) := 4/4 + (4/4 + 4) × 444 := 4 + 4 × 4444/(4 + 4) := 44 + ((4 − 4/4)4+4−4/4 ) := 5/5 + ((5 − 5/5) × 555) := 5 + (((5 − 5/5) × 555) + 5/5) := 55/5 + ((5 − 5/5) × 555) := 6/6 + ((66 − 6) × (6 × 6 + 6/6)) := 66 + 6 × 6 × (66 − 6) := (6 × ((6 × (66 − 6) + 6) + 6)) − 6/6 := (((7 + 7)/7) × 7777/7) − 7/7 := 7 × (7 × 7 × 7 − 7 − 7) − 77 := 7 + (((7 + 7)/7) × (7777 + 7)/7) := (((8 + 8)/8) × 8888/8) − 8/8 := ((8 + 8)/8) × (((8888 + 8) + 8)/8) := 8 + ((88 × (8 + 8 + 8)) + 888/8) := 9/9 + ((99/9 + 9) × 999/9) := ((9 + 9)/9) × (((9999 + 9) + 9)/9) := 9 + (((9 + 9)/9) × 9999/9) Ï 2222 := (1 + 1) × 1111 Ï 2227 := 1 + ((1 + 1) × (1 + (1 + 1111))) := 2222 := 2 + ((2222 + 2/2) + 2) Ï 2232 := 11 + (((1 + 1) × 1111) − 1) := 2 + (2222 + 2 × (2 + 2)) 3 3 := (3 − 3/3) × 3333/3 := 3 + ((((3 × 3 + 3/3) + 3) ) + 3 ) := 3 + ((3 × (33+3 + 3)) + 33) := 4 × 4444/(4 + 4) := 4 + (((4/4 + 4) × 444 − 4/4) + 4) := (4/4 + 4 + 4) × (44 − 4 − 4) := (5 + 5)/5 × 5555/5 := 5 + ((5 + 5)/5 × 5555/5) := (5 + 5)/5 × (5555/5 + 5) := ((6 + 6)/6) × (6666/6) := 66 + (6 × 6 × (66 − 6) + 6/6) := 6 × ((6 × (66 − 6) + 6) + 6) := ((7 + 7)/7) × 7777/7 := ((7 × 7 − 7/7)(7+7)/7 ) − 77 := 77 + (77 × (7 + 7 + 7 + 7) − 7/7) := ((8 + 8)/8) × 8888/8 := 8 + (((88/8)88/8−8 ) + 888) := (8/8 + 8) × ((8 + 8) × (8 + 8) − 8) := ((9 + 9)/9) × 9999/9 := 9 + (((9 + 9)/9) × ((9999 − (9 + 9))/9)) := 9 + ((9 + 9 + 9) × (9/9 + 9 × 9) + 9) 158 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2238 := (1 + 1) × (((11 − 1) × (1 + 111)) − 1) Ï 2233 := 11 + ((1 + 1) × 1111) := 22/2 + 2222 := 2 2+2 Ï 2243 := ((1 + 1) × (11 + 1111)) − 1 := 22 + (2222 − 2/2) + 2222 := 3 + ((((3 × 3 + 3/3) + 3) ) + 33) := 33 + (3 × ((33+3 + 3) + 3)) := 3 + (((3 − 3/3)3×3 ) + (3 × 3 + 3)3 ) := 4 + (((4/4 + 4) × (444 + 4/4)) + 4) := 4 × 4 + 4 × 4444/(4 + 4) := (4 × (4/4 + 4)4 ) − (4/4 + 44 ) := 5 + ((5 − 5/5) × (555 + (5 + 5)/5)) := ((5 − 5/5) × (555 + 5)) − (5 + 5)/5 := 5 + (((5 − 5/5) × (555 + 5)) − ((5 + 5)/5)) := 6/6 + (6 × ((6 × (66 − 6) + 6) + 6)) := 6 + (6 × ((6 × (66 − 6) + 6) + 6)) := (66 × (6 × 6 − ((6 + 6)/6))) − 6/6 3 := 77 + 77 × (7 + 7 + 7 + 7) := 7 × 7 + (((7 + 7 + 7)/7) + ((7 + 7)/7)) := 7 + (((7 + 7 + 7)/7)7 + 7 × 7) := 8 + ((8/8 + 88) × (8/8 + 8 + 8 + 8)) := ((8 + 8)/8) × (8888/8 + 8) := 8 × 8 + (((88/8 − 8)8−8/8 ) − 8) := 9 + (((9 + 9)/9) × (9999 + 9)/9) := 9 + (((99/9 + 9) × 999/9) + 9) := (9 + 9)/9 + ((9 + 9 + 9) × (((9 + 9)/9) + 9 × 9)) 7 Ï 2234 := 1 + (11 + ((1 + 1) × 1111)) := 2222 + (2 × (2 + 2 + 2)) Ï 2239 := ((1 + 1) × ((11 − 1) × (1 + 111))) − 1 Ï 2244 := (1 + 1) × (11 + 1111) := 2/2 + (2222 + 22+2 ) := 22 + 2222 := 3 × 3 + ((((3 × 3 + 3/3) + 3)3 ) + 33) := 3 + (3 × (33+3 + (3 × (3 + 3)))) := 4 + ((4 × 4444/(4 + 4) + 4) + 4) := ((4/4 + 4) × (444 + 4)) − 4/4 := (4 × (4/4 + 4)4 ) − 44 := 5 + (((5 − 5/5) × (555 + 5/5)) + 5) := ((5 − 5/5) × (555 + 5)) − 5/5 := (5 − 5/5) × ((555 + 5/5) + 5) := ((6 + 6)/6) × ((6666/6) + 6) := 6 + ((6 × ((6 × (66 − 6) + 6) + 6)) + 6/6) := 66 × (6 × 6 − ((6 + 6)/6)) := ((7 + 7) × (777/7 + 7 × 7)) − 7/7 := 7 + ((((7 + 7 + 7)/7)7 + 7 × 7) + 7/7) := 8 + (((8 + 8)/8) × (((8888 + 8) + 8)/8)) := (8 × (8 × (8 + 8 + 8) + 88)) − 8/8 := ((8 + 8)/8) × ((8888 + 88)/8) := 9 + ((9 + 9 + 9) × (9/9 + 9 × 9) + (99/9)) := 99 + ((99/9 + 9) × ((99 − 9/9) + 9)) := ((9 + 9)/9) × ((9999 + 99)/9) := 3 + ((3 × 3 3+3 + 33/3) + 33) := 7 + (((7 × 7 − 7/7)(7+7)/7 ) − 77) Ï 2235 := 11 + ((1 + 1) × (1 + 1111)) := 2 + (2222 + 22/2) Ï 2240 := (1 + 1) × ((11 − 1) × (1 + 111)) := 2 + (2222 + 2 2+2 := 22 + (2222 + 2/2) ) := (3 × (33+3 + 33 )) − 33 := (3 × 3 + 3) + ((3 − 3/3) := (4/4 + 4) × ((444 − 4/4) + 4) := (4/4 + 4) × (444 + 4) := ((5 − 5/5) × (555 + 5)) − 5 := (5 − 5/5) × (555 + 5) 3 := 6 + (6 × (6 × 66 − 6) − 666/6) Ï 2245 := 1 + ((1 + 1) × (11 + 1111)) 3×3 := 3 + ((3 × (33+3 + (3 × (3 + 3)))) + 3/3) ) := 4/4 + ((4 × (4/4 + 4)4 ) − 44 ) := 5 + ((5 − 5/5) × (555 + 5)) 6 := (6 × 6 − 6/6) × ((6 + 6)/6) := 6/6 + (66 × (6 × 6 − ((6 + 6)/6))) := 7 + ((((7 + 7 + 7)/7)7 + ((7 + 7)/7)) + 7 × 7) := 8 × 8 + (((88/8 − 8)8−8/8 ) − (8 + 8)) := (7 + 7) × (777/7 + 7 × 7) := 8 × (8 × (8 + 8 + 8) + 88) := 8 × 8 × (8 + 8) + 88/8 × 888/8 := 9 + (((9 + 9)/9) × (((9999 + 9) + 9)/9)) := ((9 + 9)/9) × (9999/9 + 9) := 9999/9 + (9 × ((99 + 9 + 9) + 9)) := 7 × 7 + (((7 + 7 + 7)/7)7 − 7/7) Ï 2236 := 1 + (11 + ((1 + 1) × (1 + 1111))) 2+2 Ï 2241 := 1 + ((1 + 1) × ((11 − 1) × (1 + 111))) Ï 2246 := (1 + 1) × (1 + (11 + 1111)) := 22 + (2222 − (2/2 + 2)) := 2 + (2222 + 22) := 3 + (((((3 × 3 + 3/3) + 3) ) + 33) + 3) := 3 × (33+3 + (3 × (3 + 3))) := 33 + ((3 × 33+3 − 3/3) + 33) := 4 × 4 + (4/4 + 4) × 444 := 4/4 + ((4/4 + 4) × (444 + 4)) := (4 + 4)/4 + ((4 × (4/4 + 4)4 ) − 44 ) := (5 − 5/5) × (555 − 5/5 + 5) := 5/5 + ((5 − 5/5) × (555 + 5)) := 5 + (((5 − 5/5) × (555 + 5)) + 5/5) := ((6 + 6)/6) × ((6666 + 6)/6 + 6) := 66 + ((66 × 66 − 6)/((6 + 6)/6)) := 6 + ((6 × 6 − 6/6) × ((6 + 6)/6)6 ) := 7 × 7 + ((7 + 7 + 7)/7)7 := 7 × (7 × 7 × 7 − 7) − 777/7 := 7 × 7 + ((7 − 7/7 + 7)(7+7+7)/7 ) := ((8 + 8)/8) × ((8888 − 8)/8 + 8) := 8/8 + (8 × (8 × (8 + 8 + 8) + 88)) := 8 + (((8 + 8)/8) × (8888/8 + 8)) := ((9 + 9)/9) × (((9999 − (9 + 9))/9) + 9) := (9 + 9 + 9) × (((9 + 9)/9) + 9 × 9) := 99 + ((((9 + 9)/9)99/9 ) + 99) := 2 + (2222 − 2) 3 Ï 2237 := 11 + ((1 + 1) × (1 + (1 + 1111))) := 2 + ((2222 + 22/2) + 2) := 33 + ((3 × ((3 3+3 + 3) + 3)) − 3/3) := 4 × 4 + ((4/4 + 4) × 444 + 4/4) Ï 2242 := (1 + 1) × (11 + (1111 − 1)) Ï 2247 := 1 + ((1 + 1) × (1 + (11 + 1111))) := 22 + (2222 − 2) := 3/3 + (3 × (3 3+3 := 2 + ((2222 + 22) + 2/2) + (3 × (3 + 3)))) := 4 + (4 × 4444/(4 + 4) + 4 × 4) (5+5)/5+5 := 5 + ((5 + 5)/5 × (5555/5 + 5)) := 55 + ((5 − (5 + 5)/5) := 6 + ((6 × ((6 × (66 − 6) + 6) + 6)) − 6/6) := ((6 + 6)/6 + 6 × 6) × (66 − (6/6 + 6)) ) := 33 + (3 × 33+3 + 33) := 4 + ((4 × (4/4 + 4)4 ) − (4/4 + 44 )) := 5 × 5 + ((5 + 5)/5 × 5555/5) := 66 + ((66 × 66 + 6)/((6 + 6)/6)) := 7/7 + (((7 + 7 + 7)/7)7 + 7 × 7) := 7 + ((((7 + 7 + 7)/7) − 7/7) + 7 × 7) := 8 + ((8 × (8 × (8 + 8 + 8) + 88)) − (88/8)) := (8 + 8)/8 + (8 × (8 × (8 + 8 + 8) + 88)) := 8 + ((8 × (8 × (8 + 8 + 8) + 88)) − 8/8) := 9 + (((((9 + 9)/9)99/9 ) + 99) + 9 × 9) := 9/9 + ((9 + 9 + 9) × (((9 + 9)/9) + 9 × 9)) := (((99 + 9)/9) + 9) × ((99 − 9/9) + 9) 7 159 := 7 × 7 × 7 × 7 − 77 − 77 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2248 := (1 + 1) × (1 + (1 + (11 + 1111))) 3 Ï 2253 := 11 + ((1 + 1) × (11 + (1111 − 1))) 3+3 3+3 Ï 2258 := (1 + 1) × (((11 − 1) × (1 + 1 + 111)) − 1) := (2 + 2 + 2)2 + 2222 := 22 + ((2222 − 2) + 22/2) := 2 + ((2222 + 22) + 2) := 3 × 33+3 + (((3 + 3)3 − 3)/3) − 3) := 33 + (3 × 3 4 := 4 + ((4 × (4/4 + 4) ) − 4 ) := 44 + ((44 − 4/4 + 4)(4+4)/4 ) := 4 + (4 × 4444/(4 + 4) + 4 × (4 + 4)) := (5 − 5/5) × ((555 + (5 + 5)/5) + 5) := 5 + ((5 − 5/5) × ((555 + (5 + 5)/5) + 5)) := 55 + (((5 − 55 )/(5 + 5)) − 555) := ((3/3 + 3) ) + (3 × 3 4 6/6+6) + 33) 6/6+6) := 6 × 6 + (((6 + 6)/6) × (6666/6)) := 6 × 6 × 66 − (((6 + 6)/6) := 66 + ((6 × 6/(6 + 6)) := 7 + (7 × (7 × 7 × 7 − 7) − 777/7) := (7 × (7 × 7 × 7 − 7 − 7 − 7)) − 7/7 := 7/7 + ((((7 + 7 + 7)/7)7 − 7) + 77) := 8 + (8 × (8 × (8 + 8 + 8) + 88)) := ((88/8 + 8) × (888/8 + 8)) − 8 := 8 + ((8/8 + 8 + 8 + 8) × ((8 + 8)/8 + 88)) := (9 × (9 × (9 + 9 + 9) + 9)) − (99/9 + 9) := 9 + (((9 + 9)/9) × ((9999 + 99)/9)) := (9 × (9 × (9 + 9 + 9) + 9)) − 9/9 − 9 Ï 2249 := 1 + ((1 + 1) × (1 + (1 + (11 + 1111)))) Ï 2254 := 11 + (((1 + 1) × (11 + 1111)) − 1) Ï 2259 := (1 + 1)11 + ((1 + 1) × 111 − 11) := 2 + (((2222 + 22) + 2/2) + 2) := 2222 + 2 × 22+2 := 2/2 + ((2 + 2 + 2)2 + 2222) := 33 + ((33 × 33 ) + (33/3)3 ) := 3 + (((3/3 + 3)3 ) + 3 × 33+3 ) := 3 × ((33+3 − 3) + 33 ) := 4 + (((4 × (4/4 + 4)4 ) − 44 ) + 4/4) := 4 × (4 + 4) + 4 × 4444/(4 + 4) := (4/4 + 4 + 4) × (44 − 4/4 − 4) := (5 × ((5 + 5) × (55 − 5 − 5))) − 5/5 := 5 + ((5 × ((5 + 5) × (55 − 5 − 5))) − 5/5) := (5 − 5/5 + 5) × (5 × 5 × (5 + 5) + 5/5) := 6 + ((66 × (6 × 6 − ((6 + 6)/6))) − 6/6) := 6 × 6 × 66 − ((666 + 66)/6) := 6 × 6 × 66 − (666/6 + 6) := (7 × 7 − 7/7) × (7 × 7 − (7 + 7)/7) − 7 := 7 × (7 × 7 × 7 − 7 − 7 − 7) := 7 × 7 × 7 × 7 − ((((7 + 7)/7)7 + 7) + 7) := 8 + ((8 × (8 × (8 + 8 + 8) + 88)) + 8/8) := ((8 + 8)/8) × ((8888/8 + 8) + 8) := 8 + (((88/8 − 8)8−8/8 ) + 8 × 8) := 9 + (((9 + 9)/9) × (9999/9 + 9)) := (99 − 9/9) × ((99 + 99 + 9)/9) := (9 × (9 × (9 + 9 + 9) + 9)) − 9 Ï 2250 := (11 − 1) × (1 + ((1 + 1) × (1 + 111))) Ï 2255 := 11 + ((1 + 1) × (11 + 1111)) Ï 2260 := (1 + 1) × ((11 − 1) × (1 + 1 + 111)) := 2 + (((2222 + 22) + 2) + 2) := 22 + (2222 + 22/2) := 3 × ((33+3 + (3 × (3 + 3))) + 3) := 33/3 × ((3 + 3)3 − 33/3) := 2 × ((2 × ((22 + 2)2 )) − 22) 4 := 3/3 + (3 × ((33+3 − 3) + 33 )) 4 := (4/4 + 4) × ((444 + (4 + 4)/4) + 4) := 4 + (44 × 44 + ((4 − 4)/4)) := 5 × ((5 + 5) × (55 − 5 − 5)) := 5 + (5 × ((5 + 5) × (55 − 5 − 5))) := 6 + (66 × (6 × 6 − ((6 + 6)/6))) := 66/6 × (6 × 6 × 6 − (66/6)) := 7 + ((((7 + 7 + 7)/7)7 + 7 × 7) + 7) := 7/7 + (7 × (7 × 7 × 7 − 7 − 7 − 7)) := (8/8 + 8 + 8 + 8) × ((8 + 8)/8 + 88) := 8 + (((8 × (8 × (8 + 8 + 8) + 88)) − 8/8) + 8) := (9 × (9 × (9 + 9 + 9) + 9)) − (9 + 9) := 9 + (((((9 + 9)/9)99/9 ) + 99) + 99) Ï 2251 := 1 + ((11 − 1) × (1 + ((1 + 1) × (1 + 111)))) := (((22 − 2) × (222 + 2)) + 22)/2 3 := ((3/3 + 3) ) + 3 × 3 3+3 Ï 2256 := 1 + (11 + ((1 + 1) × (11 + 1111))) := 4 × 4 × 4 + ((4 − 4/4) ) := (5 − 5/5) × (555 + 5 + 5) := 6 × 6 × 66 + (((6 − 666)/6) − 6) := 7 + ((7 × (7 × 7 × 7 − 7 − 7 − 7)) − 7/7) := ((8 × 8 × (8 × 8 + 8)) − 88)/((8 + 8)/8) := 9/9 + ((9 × (9 × (9 + 9 + 9) + 9)) − 9) Ï 2261 := 1 + ((1 + 1) × ((11 − 1) × (1 + 1 + 111))) := 2 + (2222 + 2 × 22+2 ) := 2/2 + (2 × ((2 × ((22 + 2)2 )) − 22)) 3+3 := 3 + ((((3 + 3)3 − 3)/3) + 3 × 33+3 ) := (3 × ((3 4+4−4/4 := 44 + (44 × (4 + 4) − 44) 3 − 3) + 3 )) − 3 := 4 × (4 × (44 − 4) − 444) := 4/4 + ((44 × (4 + 4) − 44) + 44 ) := 5/5 + (5 × ((5 + 5) × (55 − 5 − 5))) := 5 + ((5 × ((5 + 5) × (55 − 5 − 5))) + 5/5) := 6 + ((66 × (6 × 6 − ((6 + 6)/6))) + 6/6) := 55 + ((55/5 + 5) × (5/5 − 55)) := 6 + ((66 × (6 × 6 − ((6 + 6)/6))) + 6) := 7 + (((((7 + 7 + 7)/7)7 + 7 × 7) + 7/7) + 7) := 6 + ((66/6) × (6 × 6 × 6 − (66/6))) := (7 × 7 − 7/7) × (7 × 7 − (7 + 7)/7) := 8 × 8 + ((88/8 − 8)8−8/8 ) := 7 + (7 × (7 × 7 × 7 − 7 − 7 − 7)) := 8 + ((8 × (8 × (8 + 8 + 8) + 88)) + 8) := (88/8 + 8) × (888/8 + 8) := 9/9 + ((9 × (9 × (9 + 9 + 9) + 9)) − (9 + 9)) := (9 × (9 × (9 + 9 + 9) + 9)) − (99 + 9)/9 := (9 + 9)/9 + ((9 × (9 × (9 + 9 + 9) + 9)) − 9) Ï 2252 := 1 + (1 + ((11 − 1) × (1 + ((1 + 1) × (1 + 111))))) 2 := 2 × ((2 × (((22 + 2) ) − 2)) − 22) 3 := 3/3 + (((3/3 + 3) ) + 3 × 3 4 3+3 ) 4 := 4 + (((4 × (4/4 + 4) ) − 4 ) + 4) Ï 2257 := 11 + ((1 + 1) × (1 + (11 + 1111))) := 2 + ((2222 + 22/2) + 22) := (3 × (3 3+3 := 2222 + 2 × (22 − 2) 3 + 3 )) − 33/3 := 3 + (3 × ((33+3 − 3) + 33 )) 4 := 4/4 + ((4 + 4) × (4 + 4) + 4 × 44) 5 5 Ï 2262 := (1 + 1) × (1 + ((11 − 1) × (1 + 1 + 111))) 5 := 44 + (4 × 4444/(4 + 4) − 4) := (5 + 5)/5 + (5 × ((5 + 5) × (55 − 5 − 5))) := 5 − (((5 − (5 + 5)/5) ) + 5 /5) := (5 × 5 + 5/5) × (((5 + 5)/5)5 + 55) := 6 + (((6 × 6 − 6/6) × ((6 + 6)/6)6 ) + 6) := (6 × 6 + 6/6) × (66 − 6 + 6/6) := 66 + 6 × 6 × (66 − 6 + 6) 7 := 77 + (((7 + 7 + 7)/7) − 7) := 7 + ((7 × (7 × 7 × 7 − 7 − 7 − 7)) + 7/7) := 8 + (((8 + 8)/8) × ((8888 + 88)/8)) := 8 + (((8 × (8 × (8 + 8 + 8) + 88)) + 8/8) + 8) := (8/8 − 88) × ((8 − 88)/8 − (8 + 8)) := (9 + 9)/9 + ((9 × (9 × (9 + 9 + 9) + 9)) − (9 + 9)) := (9 × (9 × (9 + 9 + 9) + 9)) − 99/9 := ((9 + 9)/9) × (((9999 + 99)/9) + 9) := (7 × (7 × 7 × 7 − 7 − 7 − 7)) − (7 + 7)/7 160 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2263 := 1 + ((1 + 1) × (1 + ((11 − 1) × (1 + 1 + 111)))) := 2/2 + (2222 + 2 × (22 − 2)) := 3 + ((3 × ((3 3+3 Ï 2268 := (1 + 1)11 + ((1 + 1) × (111 − 1)) := 2 + ((222/2 + 222) + 2/2) := 2 + (2222 + 2 × 22) 3 − 3) + 3 )) + 3/3) 4 := 3 × (3 3+3 Ï 2273 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + 111))) 3 := 3 + (((3 × (33+3 + 33 )) − 3/3) + 3) +3 ) 4 := 4 + ((4/4 + 4 + 4) × (4 − 4/4 − 4)) := (4 − 4) × (4/4 + 4 + 4) := 4/4 + ((4 + 4) × (44 − 4) + 44 ) := 5 + ((((5 − 55 )/(5 + 5)) − 555) + 55 ) := (5 − 5/5) × (((55 + 5)/5) + 555) := (5 − 5/5)5 + ((55 − 5 + 55 )/5) := 6 + ((6 × 6 + 6/6) × (66 − 6 + 6/6)) := 6 × (6 × 66 − (6 + 6 + 6)) := 6 × (6 × 66 − 6) − (66 + 6/6) := 77 + (((7 + 7 + 7)/7) − 7/7) := 7 × ((77/7 + 7)(7+7)/7 ) := 7 × 7 × 7 × 7 − ((7 + 7)/7)7 := 88 + (((8 + 8) × (8 × (8 + 8) + 8)) − 8/8) := (8/8 + 8) × ((8 × 8 × 8 − 8)/((8 + 8)/8)) := ((8 − 8/8)8×8/(8+8) ) − 8 × (8 + 8) := 9 + ((99 − 9/9) × ((99 + 99 + 9)/9)) := 9 × (9 × (9 + 9 + 9) + 9) := ((9 × 9 + 9)/(9 + 9)) + (9 × (9 × (9 + 9 + 9) + 9)) 7 Ï 2269 := (1 + 1)11 + ((1 + 1) × 111 − 1) Ï 2264 := (1 + 1) × (11 + (11 + (1111 − 1))) := 222 + (2 := 2 × 22 + (2222 − 2) 3 33/3 22/2 − 2/2) := 3/3 + (3 × (3 := (3 + 3) + (3 − 3/3) 3+3 3 + 3 )) 4 := 44 + (4/4 + 4) × 444 := (5 − 5/5) × (555 + (55/5)) 66/6 := 6 × 6 × 6 + (((6 + 6)/6) := 2 + ((222/2 + 222) + 2) := 3 + ((3 × (33+3 + 33 )) + 3) := 4/4 + (4 − 4) × (4/4 + 4 + 4) := 4 + ((444 + ((4 + 4)4 ))/((4 + 4)/4)) := 5 + ((5 − 5/5) × (555 + (55/5))) := (5 − 5/5)5 + 5 × 5 × 5 × (5 + 5) := 6/6 + (6 × (6 × 66 − (6 + 6 + 6))) ) Ï 2274 := (1 + 1)11 + ((1 + 1) × (1 + 1 + 111)) := 6 × (6 × 66 − 6) − 66 := 77 + ((7 + 7 + 7)/7) := 7/7 + (7 × ((77/7 + 7)(7+7)/7 )) := 88 + ((8 + 8) × (8 × (8 + 8) + 8)) := 8 + ((88/8 + 8) × (888/8 + 8)) := 8 + ((888/8 − 8) × (88 + 88)/8) := ((9 − 9 × 9)/(9 + 9)) + (9 × (9 × (9 + 9 + 9) + 9)) := 9/9 + (9 × (9 × (9 + 9 + 9) + 9)) := 9 + ((9 × (9 × (9 + 9 + 9) + 9)) − ((9 + 9 + 9)/9)) 7 Ï 2270 := (1 + 1)11 + (1 + 1) × 111 Ï 2265 := ((1 + 1) × (11 + (11 + 1111))) − 1 := 222 + 2 := 2 × 22 + (2222 − 2/2) := (3 × (3 3+3 3 22/2 := 3 + ((3 × (3 + 3 )) − 3 3+3 := 7 × (7 × 7 × 7 − 7) − 7/7 − 77 Ï 2275 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + 1 + 111))) := 2 + (((222/2 + 222) + 2/2) + 2) 3 + 3 )) − 3/3) 4 := (3 × (33+3 + 33)) − 33/3 := 44 + ((4/4 + 4) × 444 + 4/4) := (444 + ((4 + 4) ))/((4 + 4)/4) := (4/4 + 4) × (444 + 44/4) := 5 + ((5 − 5/5) × (555 + 5 + 5)) := 55 + (((5 − 5/5) × 555) − 5) := 5 × (((5 + 5) × (55 − 5 − 5)) + 5) := 6 × 6 × 66 − 666/6 := 6 + ((((6 + 6)/6)66/6 ) + 6 × 6 × 6) := (6 × 6 − 6/6) × (66 − 6/6) 7 7 := 7/7 + (((7 + 7 + 7)/7) + 77) := 7 + ((((7 + 7 + 7)/7) − 7/7) + 77) := 7 × (7 × 7 × 7 − 7) − 77 := 8/8 + (((8 + 8) × (8 × (8 + 8) + 8)) + 88) := 8 + ((8/8 − 88) × ((8 − 88)/8 − (8 + 8))) := 88 + ((88/8 − 8)8−8/8 ) := (9 × (9 × (9 + 9 + 9) + 9)) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 × (9 × (9 + 9 + 9) + 9)) := 9 + ((9 × (9 × (9 + 9 + 9) + 9)) − ((9 + 9)/9)) Ï 2271 := 1 + ((1 + 1)11 + (1 + 1) × 111) Ï 2266 := (1 + 1) × (11 + (11 + 1111)) Ï 2276 := (1 + 1) × (1111 + (1 + 1 + 1)1+1+1 ) := 2/2 + (222/2 + 222) := 2 + (((222/2 + 222) + 2) + 2) := 3 + (3 × (33+3 + 33 )) := 333 + (((3 × (3 + 3))3 − 3)/3) := 44 + ((4 + 4) × (44 − 4) − 4/4) := 4 + ((4 + 4) × (44 − 4) + 44 ) := 5 + (((55/5 + 5) × (5/5 − 55)) + 5 ) := 55 + ((5 − 5/5) × (555 − 5/5)) := 6 × 6 × 66 + ((6 − 666)/6) := (5 − 5/5) × ((55 − 5)/5 − 55) := 6 + (6 × 6 × 66 − 666/6) := 6 × (6 × 66 − 6) − ((6 + 6)/6)6 := 2 × 22 + 2222 := 3/3 + ((3 × (3 3+3 3 + 3 )) − 3) := 44 + 4 × 4444/(4 + 4) 5 7 7 := 7 × 7 × 7 × 7 − (((7 + 7)/7) + 7) := 7 + (((7 + 7 + 7)/7) + 77) := (888/8 − 8) × (88 + 88)/8 := 7/7 + (7 × (7 × 7 × 7 − 7) − 77) := 8 + ((((8 + 8) × (8 × (8 + 8) + 8)) − 8/8) + 88) := (9 × (9 × (9 + 9 + 9) + 9)) − (9 + 9)/9 := ((8 × (8 × (8 × 8 + 8) − 8)) + 8)/((8 + 8)/8) := ((9 + 9 + 9)/9) + (9 × (9 × (9 + 9 + 9) + 9)) := 9 + ((9 × (9 × (9 + 9 + 9) + 9)) − 9/9) Ï 2267 := 1 + ((1 + 1) × (11 + (11 + 1111))) := 2/2 + (2222 + 2 × 22) := (3 × (3 3+3 Ï 2272 := (1 + 1)11 + ((1 + 1) × (1 + 111)) := 2 + (2 3 22/2 + 222) := 3 + ((3 × (33+3 + 33 )) + 3/3) + 3 )) − 3/3 4 4 := (4 − 4) × (4/4 + 4 + 4) − 4/4 4 := 4 + (4 + 4) × (4 − 4) 5 Ï 2277 := 11 × (11 + (1 + 1 + 1 + 11)1+1 ) := 22/2 + (2222 + 2 × 22) := 3 × ((33+3 + 33 ) + 3) := (4/4 + 4 + 4) × ((4/4 − 4) + 44 ) := 5 + ((5 × 5 + 5/5) × (((5 + 5)/5) + 55)) := (5 + 5)/5 × (5555/5 + 5 × 5) := 55 + ((5 + 5)/5 × 5555/5) := (6 × (6 × 66 − (6 + 6 + 6))) − 6/6 := 6 + (((6 − 666)/6) + 6 × 6 × 66) := 6 + ((6 × 6 × 66 − 666/6) + 6) := 777/7 + 77 × (7 + 7 + 7 + 7) := 7 + ((((7 + 7 + 7)/7)7 + 77) + 7/7) := (7 + 7)/7 + (7 × (7 × 7 × 7 − 7) − 77) := 8 + (((8 + 8) × (8 × (8 + 8) + 8)) + 88) := 88/8 × ((888/8 + 88) + 8) := 999 + (9999/9 + 9 × (9 + 9)) := 9 + (9 × (9 × (9 + 9 + 9) + 9)) := 88 + (((88/8 − 8) 8−8/8 ) − 8) := (9 × (9 × (9 + 9 + 9) + 9)) − 9/9 161 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2278 := 1 + (11 × (11 + (1 + 1 + 1 + 11)1+1 )) 2 Ï 2283 := 11 + ((1 + 1)11 + ((1 + 1) × (1 + 111))) 2 Ï 2288 := (1 + 1) × (1111 + (11 × (1 + 1 + 1))) := ((2 × (22 + 2)) ) − 22 − 2 − 2 := 2/2 + (((2 × (22 + 2)) ) − 22) := 2 × (2 × (22 × (22 + 2 + 2))) := 3/3 + (3 × ((33+3 + 33 ) + 3)) := (3 × (33+3 + 33)) − 3 := 3 + ((3 × (33+3 + 33)) − 3/3) := (4 − 44)/4 + 44 × (44 + 4 + 4) := 44 × (44 + 4 + 4) − (4/4 + 4) := 44 × (44 + 4 + 4) := 5 + (((55 − 5 + 55 )/5) + (5 − 5/5)5 ) := (55/5 × ((55 − 5)/(5 + 5 + 5))) − 5 := 55/5 × ((55 − 5)/(5 + 5 + 5)) := (66 + 6/6) × (6 × 6 − ((6 + 6)/6)) := 6 + (((6 × 6 × 66 − 666/6) + 6) + 6) := 66 + (((6 + 6)/6) × (6666/6)) := 7 × 7 × 7 × 7 − (777/7 + 7) := (7/7 + 7) × (7 × (7 × 7 − 7) − (7/7 + 7)) 7 := 7 + ((((7 + 7 + 7)/7) + 77) + 7) 8−8/8 := 8 × 8 + ((((8 + 8)/8) × 8888/8) − 8) := 8 + (((88/8 − 8) := 9 + ((9 × (9 × (9 + 9 + 9) + 9)) + 9/9) := 99 + (((9 + 9 + 9)/9) × (9 × 9 × 9 − 9/9)) Ï 2279 := (1 + 1)11 + (11 × (11 + (11 − 1))) ) + 88) Ï 2284 := 1 + (11 + ((1 + 1)11 + ((1 + 1) × (1 + 111)))) := 88 × (((((8 + 8)/8) + 8) + 8) + 8) := 9 + ((9 × (9 × (9 + 9 + 9) + 9)) + (99/9)) Ï 2289 := (11 + (11 − 1)) × (111 − 1 − 1) := 2 + (((2 × (22 + 2)) ) − 22) := 222/2 + (222 − 2)/2 := 33/3 + (3 × (33+3 + 33 )) := 3/3 + ((3 × (33+3 + 33)) − 3) := 3 + (3 × (33+3 + 33)) := (44 − 4/4) × (44 − 44)/4 := 44 × (44 + 4 + 4) − 4 := 4/4 + 44 × (44 + 4 + 4) := 5 + (5 × 5 × 5 × (5 + 5) + (5 − 5/5)5 ) := (5 − 5/5) × ((55 + 5)/5 − 55) := 5 + ((5 − 5/5) × ((55 + 5)/5 − 55)) := 6 + (6 × (6 × 66 − 6) − (66 + 6/6)) := 6 + ((66 + 6/6) × (6 × 6 − ((6 + 6)/6))) := (6/6 + 6) × (666/6 + 6 × 6 × 6) := 7 × 7 × 7 × 7 − (777 + 77)/7 := 7 × (7 + 7) + (((7 + 7 + 7)/7)7 − 7/7) := 7 × (7 × 7 × 7 − 7 − 7) − (7 + 7) := ((8 + 8 + 8) × (88 − 8/8 + 8)) − 8/8 := 8 + (((8 × (8 × (8 × 8 + 8) − 8)) + 8)/((8 + 8)/8)) := 8/8 + ((88 × (8 + 8) − 8) + 888) := 99/9 + (9 × (9 × (9 + 9 + 9) + 9)) := 99 + (9 × 9 × (9 + 9 + 9) − ((9 + 9)/9)) := 9 + ((9/9 + 9 + 9) × (999/9 + 9)) := 2 22/2 2 + ((22 − 22)/2) Ï 2280 := (1 + 1) × ((11 − 1) × (1 + 1 + 1 + 111)) 2 Ï 2285 := 11 + ((1 + 1)11 + ((1 + 1) × (1 + 1 + 111))) Ï 2290 := (1 + 1)11 + ((1 + 1) × 111+1 ) := ((2 × (22 + 2))2 ) − (22 + 2) := 2 + ((((2 × (22 + 2))2 ) − 22) + 2/2) := 222/2 + 222 /2 := 3 + (3 × ((33+3 + 33 ) + 3)) := (3 × (33+3 + 33)) − 3/3 := 3 + ((3 × (33+3 + 33)) + 3/3) := 44 × (44 + 4 + 4) − 4 − 4 := 4/4 + (44 × (44 + 4 + 4) − 4) := (4 + 4)/4 + 44 × (44 + 4 + 4) := (5 − 5/5) × (55 /5 − 55) := 5 + ((5 − 5/5) × (55 /5 − 55)) := 55 − (((55 × (5 + 5 + 5)) + 5) + 5) := 6 + (6 × (6 × 66 − 6) − 66) := 66/6 + (6 × (6 × 66 − 6) − 66) := 6 + (((66 + 6/6) × (6 × 6 − ((6 + 6)/6))) + 6) := 7 + (7 × 7 × 7 × 7 − ((7 + 7)/7)7 ) := 7 × (7 + 7) + ((7 + 7 + 7)/7)7 := 7 × 7 × 7 × 7 − 777/7 := (8 + 8 + 8) × (88 − 8/8 + 8) := 888 + (88 × (8 + 8) − (88/8)) := (9/9 + 9 + 9) × (999/9 + 9) := 99 + (9 × 9 × (9 + 9 + 9) − 9/9) Ï 2281 := 11 + ((1 + 1)11 + (1 + 1) × 111) Ï 2286 := (1 + 1) × (1111 + ((11 × (1 + 1 + 1)) − 1)) := ((2 × (22 + 2))2 ) − (22 + 2/2) := 22+2+2 + 2222 := 3 + ((3 × ((33+3 + 33 ) + 3)) + 3/3) := 3 × (33+3 + 33) := 44 + ((44 + 4/4)(4+4)/4 ) := (4/4 + 4 + 4) × (44 − (4 + 4)/4) := 5 + ((55 × (5 × 5 + 5)) + (55 + 5)/5) := ((55 + 55 )/5) + (55 × (5 × 5 + 5)) := 6 + ((6 × 6 − 6/6) × (66 − 6/6)) := 6 + ((6 × (6 × 66 − 6) − 66) + 6) := 7 + (7 × (7 × 7 × 7 − 7) − (7/7 + 77)) := 7/7 + (((7 + 7 + 7)/7)7 + 7 × (7 + 7)) := 8/8 + ((8 + 8 + 8) × (88 − 8/8 + 8)) := 8 × 8 + (((8 + 8)/8) × 8888/8) := 9/9 + ((9/9 + 9 + 9) × (999/9 + 9)) := 99 + 9 × 9 × (9 + 9 + 9) Ï 2282 := 1 + (11 + ((1 + 1)11 + (1 + 1) × 111)) := 888 + ((88 × (8 + 8) − 8) + ((8 + 8)/8)) := (9/9 + 9) × (((99/9) × (99/9 + 9)) + 9) Ï 2291 := 1 + ((1 + 1)11 + ((1 + 1) × 111+1 )) := 222/2 + (222 + 2)/2 := 3 + (((3 × (33+3 + 33)) − 3/3) + 3) Ï 2287 := (1 + 1)11 + (((1 + 1) × (111+1 − 1)) − 1) := 4 + (44 × (44 + 4 + 4) − 4/4) := 555 + (5555 + 55 )/5 := (6 × (6 × ((6 + 6)/6)6 )) − (6/6 + 6 + 6) := 7 × 7 × 7 × 7 + ((7 − 777)/7) := 8 + ((((88/8 − 8)8−8/8 ) + 88) + 8) := 9 × (9 + 9 + 9) + (((9 + 9)/9)99/9 ) Ï 2292 := (1 + 1)11 + ((1 + 1) × (1 + 111+1 )) := ((2 × (22 + 2))2 ) − 22 := 2/2 + (22+2+2 + 2222) := 2 × ((2 × (((22 + 2)2 ) − 2)) − 2) := (3 × (33+3 + 33)) − (3/3 + 3) := 3/3 + (3 × (33+3 + 33)) := 3 + ((3 × (33+3 + 33)) + 3) := 44 + ((((4 + 4)4 ) − 44)/((4 + 4)/4)) := 44 × (44 + 4 + 4) − 4/4 := 4 + 44 × (44 + 4 + 4) := 5 + (((5 + 5)/5 × 5555/5) + 55) := 55 + ((5 + 5)/5 × (5555/5 + 5)) := 55 + (((5 − 55 )/(5 + 5 + 5)) − 55 /5) := 6 + (6 × (6 × 66 − 6) − ((6 + 6)/6)6 ) := 6 + (((6 × 6 − 6/6) × (66 − 6/6)) + 6) := (6 × (6 × ((6 + 6)/6)6 )) − 6 − 6 := 7 + (7 × (7 × 7 × 7 − 7) − 77) := 7 + ((7 × 7 × 7 × 7 − ((7 + 7)/7)7 ) + 7) := 7 + (((7 + 7 + 7)/7)7 + 7 × (7 + 7)) := (8 + 8)/8 + ((8 + 8 + 8) × (88 − 8/8 + 8)) := 888 + (88 × (8 + 8) − (8/8 + 8)) := ((88 + 8)/8) × (8 × (8 + 8 + 8) − 8/8) := (9 + 9) × 99 + (((9 × 999) + 9)/(9 + 9)) := 9/9 + (9 × 9 × (9 + 9 + 9) + 99) := 9 × 9 + (((99/9 + 9) × 999/9) − 9) 162 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2293 := (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) − 11 Ï 2298 := (11 × (11 × (((1 + 1) × (11 − 1)) − 1))) − 1 Ï 2303 := (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) − 1 := ((2 × (22 + 2))2 ) − 22/2 := 2 + (2 × (2 × (((22 + 2)2 ) − 2))) := ((2 × (22 + 2))2 ) − 2/2 := 3 + (((3 × (33+3 + 33)) + 3/3) + 3) := 3 + (3 × ((33+3 + 33) + 3)) := (33/3)3 + (33 × (33 + 3)) := 4 + (44 × (44 + 4 + 4) + 4/4) := 44 + (44 × (4 + 4) − ((4 + 4)/4 + 4)) := 44 + (44 × (4 + 4) − 4/4) := 5 + (55/5 × ((55 − 5)/(5 + 5 + 5))) := 55 − ((55 × (5 + 5 + 5)) + ((5 + 5)/5)) := 5 + ((((5 + 5)/5)55/5 ) + 5 × 5 × (5 + 5)) := (6 × (6 × ((6 + 6)/6)6 )) − 66/6 := (6 × (6 × ((6 + 6)/6)6 )) − 6 := (6 × (6 × ((6 + 6)/6)6 )) − 6/6 := ((7 − 77)/7) + 7 × (7 × 7 × 7 − 7 − 7) := 777/7 + ((7 + 7 + 7)/7)7 := 7 × (7 × 7 × 7 − 7 − 7) := ((88 + 8) × (8 + 8 + 8)) − 88/8 := 888 + (88 × (8 + 8) + ((8 + 8)/8)) := ((88 + 8) × (8 + 8 + 8)) − 8/8 := (9 + 9) × 99 + ((((9 + 9)/9)9 ) − 9/9) := 999/9 + 9 × 9 × (9 + 9 + 9) := 9 + ((9 + 9) × 99 + (((9 + 9)/9)9 )) Ï 2294 := 1 + ((((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) − 11) Ï 2299 := 11 × (11 × (((1 + 1) × (11 − 1)) − 1)) Ï 2304 := ((1 + 1) × ((1 + 1) × (1 + 11)))1+1 := (2 × (2 × (((22 + 2)2 ) − 2))) − 2 := (22/2)2 × (22 − (2/2 + 2)) := (2 × (22 + 2))2 := (3 × ((33+3 + 33) + 3)) − 3/3 := 3 × 33+3 + ((333 + 3)/3) := (33 − 3) × (3 × 33 − 3) := 4 + (44 × (44 + 4 + 4) + (4 + 4)/4) := 4 + ((4/4 + 4 + 4) × (44 − 4/4)) := 44 + 44 × (4 + 4) := 55 − (((55 × (5 + 5 + 5)) + 5/5) + 5) := 55 − ((55 × (5 + 5 + 5)) + 5/5) := (55 − ((5 + 5)/5 + 5))(5+5)/5 := ((6 + 6)/6) × ((6666/6) + 6 × 6) := 6/6 + ((6 × (6 × ((6 + 6)/6)6 )) − 6) := 6 × (6 × ((6 + 6)/6)6 ) := 7 × (7 × 7 × 7 − 7 − 7) − ((7 + 7)/7 + 7) := 7 + ((((7 + 7 + 7)/7)7 + 7 × (7 + 7)) + 7) := (7 × 7 − 7/7)(7+7)/7 := 888 + (88 × (8 + 8) − ((8 + 8)/8)) := 88/8 × (88/8 × (88/8 + 8)) := (88 + 8) × (8 + 8 + 8) := 99/9 × ((99/9 + 99) + 99) := 9 × (((9 + 9)/9)9−9/9 ) 9 := (9 + 9) × 99 + (((9 + 9)/9) ) Ï 2295 := (11 − 1 − 1) × (111 + (1 + 11)1+1 ) Ï 2305 := 1 + (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) Ï 2300 := (1 + (11 + 11)) × (11 − 1)1+1 := 2 + (((2 × (22 + 2))2 ) − 22/2) := 2 × ((2 × ((22 + 2)2 )) − 2) := 2/2 + ((2 × (22 + 2))2 ) := 3 × ((33+3 + 33) + 3) := (3/3 + 3) × (((3 × 3 + 3)3 − 3)/3) := 3/3 + ((33 − 3) × (3 × 33 − 3)) := (4/4 + 4 + 4) × (44 − 4/4) := 44 + (44 × (4 + 4) − 4) := 4/4 + (44 × (4 + 4) + 44 ) := 55 − ((55 × (5 + 5 + 5)) + 5) := 55 − (55 × (5 + 5 + 5)) := 5 + (55 − (55 × (5 + 5 + 5))) := 6 × (6 × 66 + 6) − (666/6 + 6) := (6 + 6)/6 + ((6 × (6 × ((6 + 6)/6)6 )) − 6) := 6/6 + (6 × (6 × ((6 + 6)/6)6 )) := 7 × (7 × 7 × 7 − 7 − 7) − (7/7 + 7) := (7/7 + 7 × 7) × (7 × 7 − ((7 + 7 + 7)/7)) := 7/7 + ((7 × 7 − 7/7)(7+7)/7 ) := 888 + (88 × (8 + 8) − 8/8) := ((8 × 8 × (8 × 8 + 8)) − 8)/((8 + 8)/8) := 8/8 + ((88 + 8) × (8 + 8 + 8)) := 9 + (9 × 9 × (9 + 9 + 9) + 99) := (9/9 + 99) × ((99 + 99 + 9)/9) := 9/9 + (9 × (((9 + 9)/9)9−9/9 )) Ï 2296 := (1 + 1) × (1111 + (111/(1 + 1 + 1))) Ï 2301 := 1 + ((1 + (11 + 11)) × (11 − 1)1+1 ) Ï 2306 := 1 + (1 + (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 )) 2 := ((2 × (22 + 2))2 ) − 2/2 − 2 := 2 + ((2 × (22 + 2))2 ) + 33) + 3)) := 33 + (3 × (33+3 + 33 )) := 3 + ((33 × (33 + 3)) + (33/3)3 ) := 4/4 + ((44 × (4 + 4) − 4) + 44 ) := 44 + (44 × (4 + 4) + (4 + 4)/4) := 55 + (5/5 − (55 × (5 + 5 + 5))) := 5 + ((5/5 − (55 × (5 + 5 + 5))) + 55 ) := (6 × (6 × ((6 + 6)/6) )) − ((6 + 6)/6 + 6) := 6 × (6 × 66 + 6) − 666/6 := (6 + 6)/6 + (6 × (6 × ((6 + 6)/6)6 )) := 7 × (7 × 7 × 7 − 7 − 7) − 7 := 7 × (7 × 7 × 7 − 7 − 7) − (7 + 7)/7 := 77 + ((((7 + 7 + 7)/7)7 − 7) + 7 × 7) := 888 + 88 × (8 + 8) := 8 + (((88 + 8) × (8 + 8 + 8)) − (88/8)) := (8 + 8)/8 + ((88 + 8) × (8 + 8 + 8)) := (9/9 + 9 × 9) × ((9/9 + 9 + 9) + 9) := 9 × 9 + ((99/9 + 9) × 999/9) := (9 + 9)/9 + (9 × (((9 + 9)/9)9−9/9 )) := 2 × (2 × (((22 + 2) ) − 2)) := 3/3 + (3 × ((3 3+3 := 4 + (44 × (44 + 4 + 4) + 4) 5 := 5 + (5/5 − ((55 × (5 + 5 + 5)) + 5)) 6 Ï 2297 := 111 + (((1 + 1 + 11)1+1+1 ) − 11) 2 := 2/2 + (2 × (2 × (((22 + 2) ) − 2))) := 33/3 + (3 × (3 3+3 + 33)) := 4 + ((44 × (44 + 4 + 4) + 4/4) + 4) 5 := 5 + ((5 + 5)/5 − ((55 × (5 + 5 + 5)) + 5)) 6 := (6 × (6 × ((6 + 6)/6) )) − 6/6 − 6 (7+7)/7 := ((7 × 7 − 7/7) )−7 := 8/8 + (88 × (8 + 8) + 888) := 99 + (9 × 9 × (9 + 9 + 9) + (99/9)) Ï 2302 := (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) − 1 − 1 2 := ((2 × (22 + 2)) ) − 2 := 2 + (((2 × (22 + 2))2 ) + 2/2) := 3 + (((333 + 3)/3) + 3 × 3 4 Ï 2307 := 111 + (((1 + 1 + 11)1+1+1 ) − 1) 3+3 ) 4 := 4 + (4 × (4 + 4) − (4 + 4)/4) 5 := 5 + ((5 + 5)/5 − (55 × (5 + 5 + 5))) 6 := 3 + ((33 − 3) × (3 × 33 − 3)) := 4 + ((44 × (4 + 4) − 4/4) + 44 ) := 5 + (((5 + 5)/5 − (55 × (5 + 5 + 5))) + 55 ) := (6 × (6 × ((6 + 6)/6) )) − (6 + 6)/6 := 6 + (6 × (6 × 66 + 6) − 666/6) := 7 × (7 × 7 × 7 − 7 − 7) − 7/7 := 77/7 + (7 × (7 × 7 × 7 − 7 − 7) − 7) := ((88 + 8) × (8 + 8 + 8)) − (8 + 8)/8 := 888 + (88 × (8 + 8) + 88/8) 9−9/9 := (9 × (((9 + 9)/9) )) − (9 + 9)/9 163 := 9 + (9 × 9 × (9 + 9 + 9) + 999/9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2308 := 111 + ((1 + 1 + 11)1+1+1 ) Ï 2313 := 1 + ((1 + 1) × ((1 + 11 × (1 + 1 + 1))1+1 )) Ï 2318 := 111+1 + ((1 + 1 + 11)1+1+1 ) := 2 + (((2 × (22 + 2))2 ) + 2) := 2/2 + (2 × (2 × (((22 + 2)2 ) + 2))) := 2 + (2 × ((2 × (((22 + 2)2 ) + 2)) + 2)) := (3/3 + 3) × (((3 × 3 + 3)3 + 3)/3) := 3 × ((33+3 + 33) + 3 × 3) := 33 + ((3 × (33+3 + 33)) − 3/3) := 4 + (44 × (4 + 4) + 44 ) := (4/4 + 4 + 4) × (4/4 + 44 ) := ((4 + 4)4 ) − (4 × 444 + (4 + 4)/4) := (5 + 5)/5 × (((5 − 5/5)5 + 5 × 5 × 5) + 5) := 5 × 5 + (55/5 × ((55 − 5)/(5 + 5 + 5))) := 5 × 55 + ((((5 + 5)/5)55/5 ) − 5) := 6 × 6 × 66 − (((6 + 6)/6) + 66) := 6/6 + (6 × 6 × 66 − ((6 + 6)/6)6 ) := 6 + (6 × 6 × 66 − ((6 + 6)/6)6 ) := 7 + (7 × (7 × 7 × 7 − 7 − 7) − ((7 + 7)/7)) := 77 + (((7 + 7 + 7)/7)7 + 7 × 7) := 7 + (((7 × 7 − 7/7)(7+7)/7 ) + 7) := ((8 × 8 × (8 × 8 + 8)) + 8)/((8 + 8)/8) := 8 + (((88 + 8) × (8 + 8 + 8)) + 8/8) := (88/8 + 8) × ((888 + 88)/8) := 9 + (9 × 9 × (9 + 9 + 9) + ((999 + 9)/9)) Ï 2309 := ((111 − 1) × (11 + (11 − 1))) − 1 := 2 + ((((2 × (22 + 2)) ) + 2/2) + 2) 3 := ((33 × ((3 + 3) − (3 + 3))) − 3)/3 4 := 4 + ((4 × (4 + 4) + 4 ) + 4/4) := 5 + ((55 − ((5 + 5)/5 + 5)) (5+5)/5 ) := 6 × 6 × 66 − (66 + 6/6) := 7 + (7 × (7 × 7 × 7 − 7 − 7) − 7/7) := 8 + ((((88 + 8) × (8 + 8 + 8)) − (88/8)) + 8) := 9 + ((9/9 + 99) × ((99 + 99 + 9)/9)) Ï 2310 := (111 − 1) × (11 + (11 − 1)) := (9/9 + 9 + 9) × (999 + 99)/9 )) := 33 × ((((3/3 + 3)3 ) + 3) + 3) := 4 + ((44 × (4 + 4) + (4 + 4)/4) + 44 ) 5 := 55 × ((((5 + 5)/5) + 5) + 5) := 66 × (6 × 6 − 6/6) := 7 + 7 × (7 × 7 × 7 − 7 − 7) := 2 + ((((2 × (22 + 2))2 ) + 22/2) + 2) := 3 + (((33 × ((3 + 3)3 − (3 + 3))) + 3)/3) := 33 + (3 × (33+3 + 33)) := 4/4 + ((4/4 + 4 + 4) × (4/4 + 44 )) := ((4 + 4)4 ) − (4 × 444 + 4/4) := 5 + (55 − (5 + 5)/5 + 5)(5+5)/5 + 5 := 5555 − (555/5 + 55 ) := 6 + (6 × 6 × 66 − (((6 + 6)/6) + 66)) := 6 + ((6 × 6 × 66 − ((6 + 6)/6)6 ) + 6/6) := 77/7 + 7 × (7 × 7 × 7 − 7 − 7) := (7 + 7)/7 + (7 × 7 × 7 × 7 − (77 + 7)) := 8 + (((88 + 8) × (8 + 8 + 8)) + ((8 + 8)/8)) := 8 + ((((88 + 8) × (8 + 8 + 8)) − 8/8) + 8) 9−9/9 := 9 + ((9 × (((9 + 9)/9) )) + 9/9) := 99/9 × (999/9 + 99) := 3 + (((3 − 3/3 + 3)3 ) + 3 × 33+3 ) := 3/3 + ((3 × (33+3 + 33)) + 33) := 44 + (44 × (4 + 4) + 44/4) := 4 × (4 × 44 − 444) := 5 + (55 × ((((5 + 5)/5)5 + 5) + 5)) := (5 − 5/5) × (555 + 5 × 5) := 6 + (6 × 6 × 66 − (66 + 6/6)) := 6 × 6 × 66 + (((66 − 6)/6) − 66) 7 := ((7 + 7)/7) + ((7 + 7 + 7)/7) := 88/8 + ((88 + 8) × (8 + 8 + 8)) := 99/9 + (9 × (((9 + 9)/9) := (2 × (2 × (((22 + 2)2 ) + 2))) − 2/2 := ((33 × ((3 + 3)3 − (3 + 3))) + 3)/3 4 4 := 4 + (((4 × (4 + 4) − 4/4) + 4 ) + 4) 5 := 5 + (55/5 − (55 × (5 + 5 + 5))) := 6/6 + (66 × (6 × 6 − 6/6)) := 7 + ((7 × 7 − 7/7)(7+7)/7 ) := 8 + (((88 + 8) × (8 + 8 + 8)) − 8/8) := ((9 × 9 − 9/9) × (99/9 + 9 + 9)) − 9 Ï 2312 := (1 + 1) × ((1 + 11 × (1 + 1 + 1))1+1 ) := 2 × (2 × (((22 + 2)2 ) + 2)) := 3 × 33+3 + ((3 − 3/3 + 3)3 ) := 4 + ((44 × (4 + 4) + 44 ) + 4) 5 := 5 + (((55 + 5)/5) − (55 × (5 + 5 + 5))) 6 := 6 × 6 × 66 − ((6 + 6)/6) (7+7)/7 ) + 7/7) := 8 + ((88 + 8) × (8 + 8 + 8)) 9 := 9 + (((9 + 9) × 99 + (((9 + 9)/9) )) + 9) Ï 2320 := (11 − 1) × (111 + 111+1 ) := 2 × (2 × ((((22 + 2)2 ) + 2) + 2)) 9−9/9 Ï 2311 := 1 + ((111 − 1) × (11 + (11 − 1))) := 9 + ((99/9) × (999/9 + 99)) := 22/2 + ((2 × (22 + 2))2 ) 7 := 8 + (((88 + 8) × (8 + 8 + 8)) − ((8 + 8)/8)) Ï 2319 := (111 × (11 + (11 − 1))) − 1 − 11 := 2 + (2 × (2 × (((22 + 2) ) + 2))) 2 Ï 2315 := 11 + (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 ) := 2 + ((((2 × (22 + 2))2 ) + 2) + 2) := 7 + (((7 × 7 − 7/7) := 9 + (9 × (((9 + 9)/9) Ï 2314 := (1 + 1) × (1 + ((1 + 11 × (1 + 1 + 1))1+1 )) 2 4 9−9/9 )) Ï 2316 := 1 + (11 + (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 )) := 7 + ((((7 + 7 + 7)/7)7 + 77) + 7 × 7) := 8 + (((88 + 8) × (8 + 8 + 8)) + 8) := (9 × 9 − 9/9) × (99/9 + 9 + 9) Ï 2321 := 11 × ((1 + 1) × 111 − 11) := 2 × ((2 × (((22 + 2) ) + 2)) + 2) := 22/2 × (222 − 22/2) := 3 + ((3 × (33+3 + 33)) + 33 ) := (33/3)3 + (3 × (333 − 3)) := ((4 + 4)4 ) − (4 × 444 + 4) := 4/4 + (4 × (4 × 44 − 444)) := (5 − 5/5) × ((555 − 5/5) + 5 × 5) := 5/5 + ((5 − 5/5) × (555 + 5 × 5)) := 6 + (66 × (6 × 6 − 6/6)) := 66/6 + (66 × (6 × 6 − 6/6)) 2 := 7 × 7 × 7 × 7 − (7/7 + 77 + 7) := 7 + (7 × (7 × 7 × 7 − 7 − 7) + (77/7)) := 8 + (((8 × 8 × (8 × 8 + 8)) + 8)/((8 + 8)/8)) := 8 + ((((88 + 8) × (8 + 8 + 8)) + 8/8) + 8) := 9 + ((9 × 9 × (9 + 9 + 9) + 999/9) + 9) := 99 + (((9 + 9)/9) × 9999/9) Ï 2317 := 111+1 + (((1 + 1 + 11)1+1+1 ) − 1) Ï 2322 := 1 + (11 × ((1 + 1) × 111 − 11)) := 2 + (((2 × (22 + 2))2 ) + 22/2) := 2 + (((2 × (22 + 2))2 ) + 22+2 ) := ((3/3 + 3) + 3) × ((333 − 3) + 3/3) := 3 + ((3 × (33+3 + 33)) + 33) := 4 + ((4/4 + 4 + 4) × (4/4 + 44 )) := (4/4 + 4 + 4) × ((4 + 4)/4 + 44 ) := ((5 + 5)/5 + 5) × ((5 × 55 + 55) + 5/5) := (55 − 5/5) × (55 − ((55 + 5)/5)) := 6 + ((66 × (6 × 6 − 6/6)) + 6/6) := 6 + ((66 × (6 × 6 − 6/6)) + 6) := 7 × 7 × 7 × 7 − 77 − 7 := 7 × 7 × 7 × 7 − ((7 + 7)/7 + 77) := (88 + 8 + 8)/8 + ((88 + 8) × (8 + 8 + 8)) := (8/8 + 8) × ((8 + 8) × (8 + 8) + ((8 + 8)/8)) := 9 + ((9 × 9 × (9 + 9 + 9) + ((999 + 9)/9)) + 9) := (9 + 9) × ((999/9 + 9) + 9) 164 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2323 := 1 + (1 + (11 × ((1 + 1) × 111 − 11))) Ï 2328 := (111 × (11 + (11 − 1))) − 1 − 1 − 1 2 Ï 2333 := 111 + ((1 + 1) × 1111) := 2 + (((2 × (22 + 2)) ) + 22) := 222/2 + 2222 := (333 × ((3/3 + 3) + 3)) − 3 := 3 + (3 × 333 + (33/3)3 ) := (4 × ((4/4 + 4)4 − 44)) − 4/4 := 4 + (4 × ((4/4 + 4)4 − 44)) := ((44 × (44 − 44)) + 4)/4 := 5 × 55 + (((5 + 5)/5)55/5 ) := 5 + ((((5 + 5)/5)55/5 ) + 5 × 55) := 5 + (((((5 + 5)/5)55/5 ) + 5 × 55) + 5) := 6 × (6 × 66 − 6) − (66/6 + 6) := 6 × (6 × 66 − 6) − 6 − 6 := 6 × (6 × 66 − 6) − 6/6 − 6 := 7 × 7 × 7 × 7 − 7/7 − 77 := ((7 + 7 + 7)/7) × (777 − 7/7) := 7 + ((7 × 7 × 7 × 7 − 77) + ((7 + 7)/7)) := 8 + (((88 + 8) × (8 + 8 + 8)) + (88/8)) := (8 + 8 + 8) × ((8/8 + 88) + 8) := ((8 + 8) × (8 × 8 + 88)) − (88/8 + 88) := 9/9 + ((9 + 9) × ((999/9 + 9) + 9)) := 9 + (((99/9) × (999/9 + 99)) + 9) := 9 + (((9/9 + 9 + 9) + 9) × (((9 + 9)/9) + 9 × 9)) := 2 + (22/2 × (222 − 22/2)) := 3 + (((3 × (3 3+3 + 33)) + 33) + 3/3) Ï 2324 := 1 + (1 + (1 + (11 × ((1 + 1) × 111 − 11)))) 2 Ï 2329 := (111 × (11 + (11 − 1))) − 1 − 1 Ï 2334 := 1 + (111 + ((1 + 1) × 1111)) := 22 + (((2 × (22 + 2)) ) − 2) := (222/2 × (22 − 2/2)) − 2 := 22 + (2 × (2 × (((22 + 2)2 ) + 2))) := ((3/3 + 3) + 3) × (333 − 3/3) := 3/3 + ((333 × ((3/3 + 3) + 3)) − 3) := 3 + (333 × ((3/3 + 3) + 3)) 4 4 := 4 × ((4/4 + 4) − 44) := (((44 × (4 − 44)) + 4)/4) − 4 := (((44 × (44 − 44)) + 4) + 4)/4 := 55 − ((5 × (5 × ((5 + 5)/5)5 )) + 5/5) := 5 + (((5 + 5) × (5 × 5 × 5 + 5)) + (5 − 5/5)5 ) := 55 − ((555 + 55 )/5 + 55) := 6 + ((6 × 6 × 66 − ((6 + 6)/6)6 ) + 6) := 6 × (6 × 66 − 6) − 66/6 := 6 × (6 × 66 − 6) − 6 := 7 × 7 × 7 × 7 − 77 := 7 + (7 × 7 × 7 × 7 − ((7 + 7)/7 + 77)) := 7 × (7 + 7 + 7) + ((7 + 7 + 7)/7)7 := 8 + ((((8 × 8 × (8 × 8 + 8)) + 8)/((8 + 8)/8)) + 8) := 8/8 + ((8 + 8 + 8) × ((8/8 + 88) + 8)) := ((8 + 8)/8) × ((8888/8 − 8) + 8 × 8) := ((9/9 + 9 + 9) + 9) × (((9 + 9)/9) + 9 × 9) := 9 + ((9 × 9 − 9/9) × (99/9 + 9 + 9)) := (9999/((9 + 9 + 9)/9)) − 999 Ï 2325 := 1 + (1 + (1 + (1 + (11 × ((1 + 1) × 111 − 11))))) 2 Ï 2330 := (111 × (11 + (11 − 1))) − 1 2 := 22 + (((2 × (22 + 2)) ) − 2/2) := 2 + ((((2 × (22 + 2)) ) + 22) + 2) := 3333 − (3 × (333 + 3)) := 3 × 333 + (33/3) 4 3 Ï 2335 := 111 + ((1 + 1) × (1 + 1111)) := 2 + (222/2 + 2222) := 3 + ((333 × ((3/3 + 3) + 3)) + 3/3) := 4/4 + (4 × ((4/4 + 4) − 44)) := ((44 × (4 − 44)) − (4 + 4))/4 := 4 + (((44 × (44 − 44)) − 4)/4) := 55 − (5 × (5 × ((5 + 5)/5)5 )) := 5 + (55 − (5 × (5 × ((5 + 5)/5)5 ))) := 5 + ((55 − (5 × (5 × ((5 + 5)/5)5 ))) + 5) := ((6/6 + 6) × 666 × 6/(6 + 6)) − 6 := (6 − 66)/6 + 6 × (6 × 66 − 6) := 6/6 + (6 × (6 × 66 − 6) − 6) := 7/7 + (7 × 7 × 7 × 7 − 77) := 7 + (7 × 7 × 7 × 7 − (7/7 + 77)) := 77/7 + (7 × 7 × 7 × 7 − 77) := 8 × 8 + ((88/8 + 8) × (888/8 + 8)) := 8 + ((8/8 + 8) × ((8 + 8) × (8 + 8) + ((8 + 8)/8))) := 8 + (8888 − ((88/8 − 8)8 )) := 999/9 + (9 + 9 + 9) × (9/9 + 9 × 9) := 999 + (99/9)(9+9+9)/9 := 9 + ((((99 × 99) − 9)/(9 + 9)) + (9 + 9) × 99) 4 Ï 2326 := 11 + (11 + (((1 + 1) × ((1 + 1) × (1 + 11)))1+1 )) := 22 + ((2 × (22 + 2))2 ) 3 := 3 + (((333 + 3)/3) + 3 × 3 3+3 ) 4 := 4 + ((4/4 + 4 + 4) × ((4 + 4)/4 + 4 )) 5 5 := 5 + (5/5 − (5 × (5 × ((5 + 5)/5) ))) Ï 2331 := 111 × (11 + (11 − 1)) Ï 2336 := 1 + (111 + ((1 + 1) × (1 + 1111))) := 222/2 × (22 − 2/2) := (2 × 22)2 + (22 − 2)2 := 333 × ((3/3 + 3) + 3) := (33 − 3/3) × (((3 + 3)3 + 3)/3) := ((44 × (44 − 44)) − 4)/4 := 44 + (4 + 4) × (44 + 4) := 555/5 × ((55/5 + 5) + 5) := 5 + (555/5 × ((55/5 + 5) + 5)) := 6 × (6 × 66 − 6) − ((6 + 6)/6 + 6 + 6) := (6/6 + 6) × 666 × 6/(6 + 6) := (6 + 6)/6 + (6 × (6 × 66 − 6) − 6) := (7 + 7)/7 + (7 × 7 × 7 × 7 − 77) := 7 + (7 × 7 × 7 × 7 − 77) := (7/7 + 7) × (7 × (7 × 7 − 7) − ((7 + 7)/7)) := 8 + ((88/8 + 8) × ((888 + 88)/8)) := (8 × 8 − 8/8) × 888/(8 + 8 + 8) := 8 + ((8 + 8 + 8) × ((8/8 + 88) + 8)) := (9 + 9) × 99 + (((99 × 99) − 9)/(9 + 9)) := 9 × (9 × (9 + 9) + 99) − (9 + 9) := 9 × (9 × (9 + 9) + 99) − ((99 + 9 + 9)/9) Ï 2327 := 111 + ((1 + 1) × (1111 − (1 + 1 + 1))) 2 := 22 + (((2 × (22 + 2)) ) + 2/2) Ï 2332 := 1 + (111 × (11 + (11 − 1))) Ï 2337 := 111 + ((1 + 1) × (1 + (1 + 1111))) := 22 × ((2 × 2 × (22 + 2 + 2)) + 2) := 2 + 222/2 + 2222 + 2 := 3 × 333 + ((33/3) − 3) := 3/3 + (333 × ((3/3 + 3) + 3)) := ((33 + 3) × (3 × 33 − 3)) − 3 := (((44 × (44 − 44)) − 4)/4) − 4 := 44 × (44 − 44)/4 := (((4 − 4/4) + 4)4 ) − 4 × 4 × 4 := 55 − (((5 − (5 + 5)/5)5 ) + 555) := (5 + 5)/5 × (5555/5 + 55) := 5 + ((5 + 5)/5 × (5555/5 + 55)) := 6 × (6 × 66 − 6) − (6/6 + 6 + 6) := 6 × (6 × 66 − 6) − ((6 + 6)/6 + 6) := 6 × (6 × 66 − 6) − 6 × 6/(6 + 6) := 7 × 7 × 7 × 7 + (((7 + 7 + 7)/7) − 77) := 7 + (7 × 7 × 7 × 7 − 77 + 7/7) := 7 × (7 × 7 × 7 − 7) − (7/7 + 7 + 7) := 8888 − ((88/8 − 8)8 ) := (88/((8 + 8)/8)) × (8 × 8 − 88/8) := ((8 − 8/8)8×8/(8+8) ) − 8 × 8 := 9 + ((9/9 + 9 + 9) × (999 + 99)/9) := 9/9 + (9 × (9 × (9 + 9) + 99) − (9 + 9)) := 9 × (9 × (9 + 9) + 99) − (99 + 9)/9 3 165 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2338 := 1 + (111 + ((1 + 1) × (1 + (1 + 1111)))) := 222 + (2 × 22 + 2)2 Ï 2343 := 11 × (((1 + 1) × (1 + 111)) − 11) Ï 2348 := (1 + 1)11 + ((1 + 1 + 1) × (11 − 1)1+1 ) := (22/2)2 + 2222 := 2 × ((2 × ((22 + 2)2 )) + 22) := 33 × (((3 + 3)3 − 3)/3) := (33 × (3 × 33 + 3 + 3)) − 3/3 := ((4 − 4 )/4) + (((4 − 4/4) + 4) ) := 44/4 × ((4/4 − 44) + 44 ) := 44 + (44 × (4 + 4) + 44 ) := (5 + 5)/5 × (((55 − 55)/5) + 555) := 55/5 × (((55 − 5)/(5 + 5 + 5)) + 5) := 55 − (((5 + 5)/5 + 5) × 555/5) := 6 × (6 × 66 − 6) − (6 + 6)/6 := (6 × 6/(6 + 6)) + 6 × (6 × 66 − 6) := 6 + (6 × (6 × 66 − 6) + ((6 + 6)/6)) := 7 × (7 × 7 × 7 − 7) − (7 + 7) := 7 × (7 × 7 × 7 − 7) − ((7 + 7)/7 + 7) := 7 + (7 × (7 × 7 × 7 − 7) − (77/7)) := ((8 + 8) × (8 × 8 + 88)) − (8/8 + 88) := ((8 × 8 × (8 × 8 + 8)) + 88)/((8 + 8)/8) := 99/9 × ((9 + 9) × (9 + 9) − 999/9) := 9 × (9 × (9 + 9) + 99) − 9/9 := ((3/3 + 3) + 3) × (333 + 3/3) 4 4 8×8/(8+8) := 8/8 + (((8 − 8/8) ) − 8 × 8) := 9 × (9 × (9 + 9) + 99) − 99/9 Ï 2339 := 111 + ((1 + 1) × (1 + (1 + (1 + 1111)))) Ï 2344 := 1 + (11 × (((1 + 1) × (1 + 111)) − 11)) 2 2 Ï 2349 := ((1 + 111) × (11 + (11 − 1))) − 1 − 1 − 1 := 2/2 + ((2 × 22 + 2) + 222) := 2 × (((2 × ((22 + 2) )) − 2) + 22) := 2/2 + (((2 × (22 + 2))2 ) + 2 × 22) := (33/3)3 + (3 × (333 + 3)) := ((33 × ((3 + 3)3 − 3)) + 3)/3 := 33 × (3 × 33 + 3 + 3) := (44 + 4) × (4/4 + 4 + 4) − 4/4 := 4 + (44 + 4) × (4/4 + 4 + 4) := (4/4 + 4 + 4) × ((4/4 + 44 ) + 4) 5 5 := 55 + (((55 − 5/5)/(5/5 − 5)) − 5) := 5 + ((5 − 5/5)/(5/5 − 5)) := 5 + (((55 − 5/5)/(5/5 − 5)) + 55 ) := 6 × (6 × 66 − 6) − 6/6 := 6 + (6 × (6 × 66 − 6) − ((6 + 6)/6)) := 6 + (6 × (6 × 66 − 6) + (6 × 6/(6 + 6))) := 7/7 + (7 × (7 × 7 × 7 − 7) − (7 + 7)) := 7 × (7 × 7 × 7 − 7) − (7/7 + 7) := 7 × (7 × 7 × 7 − 7) − (7 + 7 + 7)/7 := 8 + ((8 × 8 − 8/8) × 888/(8 + 8 + 8)) := ((8 + 8) × (8 × 8 + 88)) − 88 := (88 − 8/8) × (88/8 + 8 + 8) := 9 × (9 × (9 + 9) + 99) − 9/9 − 9 := ((9 − 99)/(9 + 9)) + 9 × (9 × (9 + 9) + 99) := 9 × (9 × (9 + 9) + 99) Ï 2340 := (11 − 1) × (1 + (11 + (1 + 1) × 111)) Ï 2345 := 111+1 + ((1 + 1) × (1 + 1111)) 2 2 Ï 2350 := (11 − 1) × (11 + ((1 + 1) × (1 + 111))) := 2 + ((2 × 22 + 2) + 222) := 2 + ((22/2) + 2222) := 2 + (((2 × (22 + 2))2 ) + 2 × 22) := (33 + 3) × (3 × 33 − 3) := 3 + (((33 × ((3 + 3)3 − 3)) − 3)/3) := 3/3 + (33 × (3 × 33 + 3 + 3)) := (44 + 4) × (4/4 + 4 + 4) := 4 + (((((4 − 4/4) + 4)4 ) − 4 × 4 × 4) + 4) := (4444 + 44 )/((4 + 4)/4) := 55 + (((55 − 5)/(5/5 − 5)) − 5) := 5 × ((5 − 5/5)5 − 555) := 5 × ((5 × (5 × (5 × 5 − 5) − 5)) − 5) := 6 × (6 × 66 − 6) := 6 + (6 × (6 × 66 − 6) − 6/6) := ((66 − 6)/6) + 6 × (6 × 66 − 6) := 7 × (7 × 7 × 7 − 7) − (77 + 7)/7 := 7 × (7 × 7 × 7 − 7) − 7 := 7 × (7 × 7 × 7 − 7) − (7 + 7)/7 8×8/(8+8) := (8/8 + 8) × ((8 × 8 × 8 + 8)/((8 + 8)/8)) := 8 + (((8 − 8/8) := 9 × (9 × (9 + 9) + 99) − 9 := (9 − ((9 + 9)/9)) × ((9 + 9) × (9 + 9) + (99/9)) Ï 2341 := 11 + ((111 × (11 + (11 − 1))) − 1) ) − 8 × 8) Ï 2346 := 1 + (111+1 + ((1 + 1) × (1 + 1111))) := ((8 + 8)/8) × (8888/8 + 8 × 8) := 9/9 + 9 × (9 × (9 + 9) + 99) Ï 2351 := ((1 + 111) × (11 + (11 − 1))) − 1 := (22/2)2 + (2222 − 2) := 2 × 22 + (((2 × (22 + 2))2 ) − 2) := 2222 + ((22×(2+2) + 2)/2) := 3/3 + ((33 + 3) × (3 × 33 − 3)) := 3 + (33 × (((3 + 3)3 − 3)/3)) := (((3 × 33 + 3)3−3/3 ) − 3)/3 := 4 + ((((4 − 4/4) + 4)4 ) − 4 × 4 × 4) := (((4 − 4/4) + 4)4 ) − 44/4 − 44 := 44/4 + (44 + 4) × (4/4 + 4 + 4) := 55 + ((55/5 + 55 )/(5/5 − 5)) := (((5 + 5)/5 + 5)5−5/5 ) − 55 := 5 + ((((5 + 5)/5 + 5)5−5/5 ) − 55) := 6/6 + 6 × (6 × 66 − 6) := 6 + 6 × (6 × 66 − 6) := 66/6 + 6 × (6 × 66 − 6) := 7 × (7 × 7 × 7 − 7) − 77/7 := 7/7 + (7 × (7 × 7 × 7 − 7) − 7) := 7 × (7 × 7 × 7 − 7) − 7/7 := ((88 − 8/8) × (88/8 + 8 + 8)) − 8 := (8 + 8)/8 + (((8 + 8) × (8 × 8 + 88)) − 88) := 8 + (((8 + 8) × (8 × 8 + 88)) − (8/8 + 88)) := 9/9 + (9 × (9 × (9 + 9) + 99) − 9) := 9 × (9 × (9 + 9) + 99) − (9 + 9 + 9)/9 := (9 + 9)/9 + 9 × (9 × (9 + 9) + 99) Ï 2347 := 111+1 + ((1 + 1) × (1 + (1 + 1111))) Ï 2342 := 11 + (111 × (11 + (11 − 1))) 2 2 := 2 × (((2 × ((22 + 2)2 )) + 22) + 2) := 2 + (((2 × 22 + 2) + 222) + 2) := 2 + (((22/2) + 2222) + 2) := ((33 × ((3 + 3)3 − 3)) − 3)/3 := 3 + (((33 × ((3 + 3)3 − 3)) + 3)/3) 4 4 Ï 2352 := (1 + 111) × (11 + (11 − 1)) 4 := 3 + (33 × (3 × 33 + 3 + 3)) := 4 + (44/4 × ((4/4 − 44) + 4 )) := ((4 + 4) + 4) × ((4 × (44 + 4)) + 4) := 5 + ((((5 + 5)/5 + 5 ) + 5)/(5/5 − 5)) := 55 + (((55 − 5)/(5/5 − 5)) + ((5 + 5)/5)) := (55 + 5/5) × ((((5 + 5)/5)5 + 5) + 5) := (6 + 6)/6 + 6 × (6 × 66 − 6) := 6 + (6 × (6 × 66 − 6) + 6/6) := 6 + (6 × (6 × 66 − 6) + 6) := ((7 − 77)/7) + 7 × (7 × 7 × 7 − 7) := (7 + 7)/7 + (7 × (7 × 7 × 7 − 7) − 7) := 7 × (7 × 7 × 7 − 7) := 4 + ((((4 − 4/4) + 4) ) + ((4 − 4 )/4)) 5 5 := ((8 + 8) × (8 × 8 + 88)) − ((8 + 8)/8 + 88) := ((8 × (8 − 888)) − 8/8)/(8 − 88/8) := 8 + (((8 + 8) × (8 × 8 + 88)) − 88) := (9 + 9)/9 + (9 × (9 × (9 + 9) + 99) − 9) := 9 × (9 × (9 + 9) + 99) − (9 + 9)/9 := ((9 + 9 + 9)/9) + 9 × (9 × (9 + 9) + 99) 166 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2353 := 1 + ((1 + 111) × (11 + (11 − 1))) := 22 + (222/2 × (22 − 2/2)) 3 3−3/3 Ï 2358 := (1 + 1) × ((11 − 1 − 1) × ((11 × (1 + 11)) − 1)) 2 := 22 /2 + (2 × 22 + 2) 2 Ï 2363 := 11 + ((1 + 111) × (11 + (11 − 1))) := 22 + ((2222 − 2) + (22/2)2 ) := 3 × ((33 × (33 − 3)) − (3 + 3)) := 33 + (3 × 333 + (33/3)3 ) := (((4 − 4/4) + 4)4 ) − (44 + 4) := 4/4 + ((((4 − 4/4) + 4)4 ) − 44) := 44 + (44 × (44 + 4) − (4/4 + 4)) := 5 + ((((5 + 5)/5)55/5 ) + (5 × (55 + 5))) := (5 + 5)/5 × ((55 − 5)/5 + 555) := 5 + ((5 + 5)/5 × ((55 − 5)/5 + 555)) := 6 + ((6 × (6 × 66 − 6) + 6/6) + 6) := 6 × 6 × 66 − 6 − 6 − 6 := 6 × 6 × 66 − (6/6 + 6 + 6) := 7/7 + 7 × (7 × 7 × 7 − 7) := 7 + (7 × (7 × 7 × 7 − 7) − 7/7) := 77/7 + 7 × (7 × 7 × 7 − 7) := 8 + (((8 + 8)/8) × (8888/8 + 8 × 8)) := (8/8 + 8 + 8) × (8 × (8 + 8) + (88/8)) := 9 + 9 × (9 × (9 + 9) + 99) := 9 + (((99 − 9/9) + 9) × ((99 + 99)/9)) := (((3 × 3 + 3) ) + 3)/3 8×8/(8+8) := 8 + ((((8 − 8/8) ) − 8 × 8) + 8) := ((9 × 9 − 9)/(9 + 9)) + 9 × (9 × (9 + 9) + 99) Ï 2354 := 1 + (1 + ((1 + 111) × (11 + (11 − 1)))) Ï 2359 := 1 + ((1 + 1) × ((11 − 1 − 1) × ((11 × (1 + 11)) − 1))) Ï 2364 := (1 + 11) × (1 + (1 + 1 + 1 + 11)1+1 ) := 22 × (222/2 − (2 + 2)) := (222 + 2)/2 + (2 × 22 + 2)2 := 2 × ((2 × ((((22 + 2)2 ) + 2) + 2)) + 22) := 33/3 × (((3 + 3)3 − 3) + 3/3) := 3/3 + (3 × ((33 × (33 − 3)) − (3 + 3))) := (3 × ((33 × (33 − 3)) − 3)) − 3 := 4 + ((4444 + 44 )/((4 + 4)/4)) := 4 + (((44/4)4−4/4 ) + 4 × 44 ) := 44 + (44 × (44 + 4) − 4) := 5 + ((((55 − 5/5)/(5/5 − 5)) + 55 ) + 5) := 55 + ((55 − ((5 + 5)/5 + 5))(5+5)/5 ) := 55 − ((555 + 55 )/5 + 5 × 5) := 66/6 × (6 × 6 × 6 − (6 + 6)/6) := 6 × 6 × 66 − (66/6 + 6) := 6 × 6 × 66 − 6 − 6 := (7 + 7)/7 + 7 × (7 × 7 × 7 − 7) := 7 + 7 × (7 × 7 × 7 − 7) := (77 + 7)/7 + 7 × (7 × 7 × 7 − 7) := 88/8 × ((8 × (8 + 8) − ((8 + 8)/8)) + 88) := 8 × 8 + ((88 × (8 + 8) − 8/8) + 888) := 8 × 8 + (((8 × 8 × (8 × 8 + 8)) − 8)/((8 + 8)/8)) := ((99 − 9/9) + 9) × ((99 + 99)/9) := 9 + (9 × (9 × (9 + 9) + 99) + 9/9) := ((99 + 9)/9) × ((99 − 9/9) + 99) Ï 2360 := (1 + 1) × ((11 − 1) × (111+1 − (1 + 1 + 1))) Ï 2355 := 111+1+1 + (1 + 1)11−1 2 2 Ï 2365 := 11 × (((1 + 1) × (1 + 1 + 111)) − 11) := 22 + (222/2 + 2222) := 2 + ((2 × 22 + 2) + 22 /2) := 22 + ((22/2)2 + 2222) := 3 + ((33 × (3 × 33 + 3 + 3)) + 3) := 33/3 + (33 × (3 × 33 + 3 + 3)) := 33/3 × ((3 + 3)3 − 3/3) := 4 × 44 + ((44/4)4−4/4 ) := (44 − 4) × (((44 − 4)/4) − 4) := 4 + (((((4 − 4/4) + 4)4 ) − 44) + 4) := 5 + (5 × ((5 × (5 × (5 × 5 − 5) − 5)) − 5)) := (5 + 5) × (555/5 + 5 × 5 × 5) := 55 × (55 − ((55 + 5)/5)) := 6 × 6 × 66 + ((6 − (66 + 66))/6) := (6 − 66)/6 + (6 × 6 × 66 − 6) := 6 × 6 × 66 − 66/6 := (7 + 7 + 7)/7 + 7 × (7 × 7 × 7 − 7) := 7 + (7 × (7 × 7 × 7 − 7) + 7/7) := 7 + ((7 × (7 × 7 × 7 − 7) − 7/7) + 7) := 88/8 + (((8 + 8) × (8 × 8 + 88)) − 88) := 8 × 8 + (88 × (8 + 8) + 888) := 88/8 × ((8 × (8 + 8) − 8/8) + 88) := 9 + (9 × (9 × (9 + 9) + 99) − ((9 + 9 + 9)/9)) := 99/9 + 9 × (9 × (9 + 9) + 99) := 99/9 × (((9 + 9) × (99 + 9) − 9)/9) Ï 2356 := 1 + (111+1+1 + (1 + 1)11−1 ) := 2 + (22 × (222/2 − (2 + 2))) 3 := 3 + ((((3 × 3 + 3) 3−3/3 ) + 3)/3) 4 := ((4 + 4) × (44 + 4 )) − 44 5 Ï 2361 := 1 + ((1 + 1) × ((11 − 1) × (111+1 − (1 + 1 + 1)))) 2 2 Ï 2366 := (1 + 11)1+1 + ((1 + 1) × 1111) := 2 + ((22 + 2)/2 + (2 × 22 + 2) ) := 2222 + ((2 × (2 + 2 + 2))2 ) := 3 + (3 × ((33 × (33 − 3)) − (3 + 3))) := (3 × ((33 × (33 − 3)) − 3)) − 3/3 := 4 + ((((4 − 4/4) + 4)4 ) − 44) := 44 + (44 × (44 + 4) − (4 + 4)/4) := 55 /5 + (5555 + 55 )/5 := 5/5 + (55 × (55 − ((55 + 5)/5))) := 6 + (6 × (6 × 66 − 6) + ((66 − 6)/6)) := 6 × 6 × 66 + (6 − 6 × 6)/((6 + 6)/6) := (6 − 66)/6 + 6 × 6 × 66 := 77/7 + (7 × (7 × 7 × 7 − 7) − 7) := 7 + (7 × (7 × 7 × 7 − 7) + ((7 + 7)/7)) := 7 + 7 × (7 × 7 × 7 − 7) + 7 := 8 + (((8 × 8 × (8 × 8 + 8)) + 88)/((8 + 8)/8)) := 8/8 + ((88 × (8 + 8) + 888) + 8 × 8) := 8 × 8 + (((88 + 8) × (8 + 8 + 8)) − ((8 + 8)/8)) := 9 + (9 × (9 × (9 + 9) + 99) − ((9 + 9)/9)) := ((99 + 9)/9) + 9 × (9 × (9 + 9) + 99) := 9 + ((9 × (9 × (9 + 9) + 99) − 9/9) + 9) := (5 − 5/5) × (((5 − 55)/5) − 5 × 5) Ï 2357 := 1 + (1 + (111+1+1 + (1 + 1)11−1 )) Ï 2362 := 11 + (((1 + 111) × (11 + (11 − 1))) − 1) Ï 2367 := 1 + ((1 + 11)1+1 + ((1 + 1) × 1111)) := (222 − 2)/2 + (2 × 22 + 2)2 := 2 + (2 × 22 + 2)2 + 222 /2 + 2 := 2 + (((22/2)2 + 2222) + 22) := 3 + (33/3 × (((3 + 3)3 − 3) + 3/3)) := (33/3 × ((3 + 3)3 − 3/3)) − 3 := 3 × ((33 × (33 − 3)) − 3) := (((4 − 4/4) + 4)4 ) − 44 := 4 + (((((4 − 4/4) + 4)4 ) − 44) + 4/4) := 44 + (44 × (44 + 4) − 4/4) := 55 + (((5 + 5)/5)5 × (5/5 − 5 × 5)) := (5 + 5)/5 × ((55 + 5)/5 + 555) := 5 + ((5 + 5)/5 × ((55 + 5)/5 + 555)) := 6 + (6 × (6 × 66 − 6) + (66/6)) := 6 × 6 × 66 − ((6 + 6)/6 + 6 + 6) := 6 × 6 × 66 + (((6 − 66) + 6)/6) := 7 + (7 × (7 × 7 × 7 − 7) − ((7 + 7)/7)) := ((77 − 7)/7) + 7 × (7 × 7 × 7 − 7) := 7 + ((7 × (7 × 7 × 7 − 7) + 7/7) + 7) := 8 + ((88 − 8/8) × (88/8 + 8 + 8)) := 8 + (88/8 × ((8 × (8 + 8) − ((8 + 8)/8)) + 88)) := 8 × 8 + (((88 + 8) × (8 + 8 + 8)) − 8/8) := 9 + (9 × (9 × (9 + 9) + 99) − 9/9) := ((99 + 9 + 9)/9) + 9 × (9 × (9 + 9) + 99) := 9 + (9 × (9 × (9 + 9) + 99) + 9) 167 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2368 := ((1 + 1)1+11 ) − ((1 + 11)1+1+1 ) 2 := 2 × (2 × (((22 + 2) ) + 2 2+2 )) Ï 2373 := (11 + (11 − 1)) × (1 + 1 + 111) := (22 − 2/2) × (222/2 + 2) := 2 + 22 × ((222 − 2)/2 − 2) := 3 + (33/3 × ((3 + 3)3 − 3/3)) := (3 × (33 × (3 − 3))) − 3 := 3 + (((33 × (3 + 3)3 ) − 3)/3) := 44 + 44 × (44 + 4) := 4 + ((((4 − 4/4) + 4)4 ) − 4 × (4 + 4)) := 444 + (44 × 44 − (4 + 4)/4) := ((5 + 5)/5)5 × ((5 × (5 + 5 + 5)) − 5/5) := 55 − (5 × 5 × (5 × 5 + 5) + ((5 + 5)/5)) := 55 − (((555 + 55) + 55 )/5) := (6 × 6 + 6/6) × ((6 + 6)/6)6 := 6 × 6 × 66 − 6 × 6/(6 + 6) := (6 + 6)/6 + 6 × 6 × 66 := 7 + ((7 × (7 × 7 × 7 − 7) + ((7 + 7)/7)) + 7) := 7 × (7 × 7 × 7 + 7) − 77 := 7 × 7 × 7 × 7 − ((((7 + 7)/7 + 7) + 7) + 7) := 8 × (8 × 888/(8 + 8 + 8)) := 8 + (88/8 × ((8 × (8 + 8) − 8/8) + 88)) := (8 + 8)/8 + (88 × (88/8 + 8 + 8)) := 9 + ((9 × (9 × (9 + 9) + 99) + 9/9) + 9) := ((99 × (9 × 9 − 9)) − 9)/((9 + 9 + 9)/9) := (9/9 + 9 × 9) × (99/9 + 9 + 9) Ï 2369 := 1 + (((1 + 1)1+11 ) − ((1 + 11)1+1+1 )) 3 Ï 2378 := (1 + 1) × (1 + (11 × (111 − 1 − 1 − 1))) Ï 2374 := 1 + ((11 + (11 − 1)) × (1 + 1 + 111)) Ï 2379 := 1 + ((1 + 1) × (1 + (11 × (111 − 1 − 1 − 1)))) := 2/2 + (((2 × (22 + 2))2 ) + 22+2+2 ) := 22 × ((222 − 2)/2 − 2) − 2 := (((2/2 + 2 + 2) + 2)2+2 ) − 22 := (((33 × (3 + 3)3 ) − 3)/3) − 3 − 3 := (((33 × (3 + 3)3 ) + 3)/3) − 3 := 3 + (3 × (33 × (33 − 3))) := (((4 − 4/4) + 4)4 ) − 4 × (4 + 4) := (((4 − 4/4) + 4)4 ) − (44/4 + 4 × 4) := 444 + (44 × 44 − 4/4) := 55 − ((5 × 5 × (5 × 5 + 5) + 5/5) + 5) := 5 − (5 × 5 × (5 × 5 + 5) + 5/5) := 5 + ((5 × (5 × 55 − 5)) + (5 − 5/5)5 ) := 6 × 6 × 66 − 6/6 − 6 := 6 × 6 × 66 − (6 + 6)/6 := 6 × 6 × 66 + (6 × 6/(6 + 6)) := 7 + (7 × (7 × 7 × 7 − 7) + ((77 − 7)/7)) := 7/7 + (7 × (7 × 7 × 7 + 7) − 77) := 7 × 7 × 7 × 7 − (7/7 + 7 + 7 + 7) := 8/8 + (((88 + 8) × (8 + 8 + 8)) + 8 × 8) := (88 × (88/8 + 8 + 8)) − (8 + 8)/8 := 8 × 8 + (((88 + 8) × (8 + 8 + 8)) + (88/8)) := 9 + (9 × (9 × (9 + 9) + 99) + (99/9)) := ((9 + 9)/9) × (((99 × (99 + 9)) − 9)/9) := 999/9 + (9 × (9 × (9 + 9 + 9) + 9)) Ï 2370 := (11 − 1) × (11 + ((1 + 1) × (1 + 1 + 111))) 5 Ï 2375 := ((1 + 1) × (11 × (111 − 1 − 1 − 1))) − 1 Ï 2380 := (1 + 1) × ((11 − 1) × (111+1 − (1 + 1))) := (2 × (2 + 2 + 2)2+2 ) − 222 := 2 + ((22 − 2/2) × (222/2 + 2)) := 2 × (2 × 222 + 222) := 3 + (3 × ((33 × (33 − 3)) − 3)) := ((33 × (3 + 3)3 ) − 3)/3 := 3 + (((33 × (3 + 3)3 ) + 3)/3) := 4/4 + ((((4 − 4/4) + 4)4 ) − 4 × (4 + 4)) := ((44 × (44 − 44 + 4)) − 4)/4 := 444 + 44 × 44 := 55 − (5 × 5 × (5 × 5 + 5) + 5) := 5 × (5 × (5 × (5 × 5 − 5) − 5)) := 5 + (5 × (5 × (5 × (5 × 5 − 5) − 5))) := 6 × 6 × 66 − 6 := 6 × 6 × 66 − 6/6 := 6 + (6 × 6 × 66 − ((6 + 6)/6)) := 7 + (7 × (7 × 7 × 7 − 7) + (77/7)) := (7 + 7)/7 + (7 × (7 × 7 × 7 + 7) − 77) := 7 × 7 × 7 × 7 − (7 + 7 + 7) := 8 × 8 + (((88 + 8) × (8 + 8 + 8)) + ((8 + 8)/8)) := (88 × (88/8 + 8 + 8)) − 8/8 := ((88 + 8)/8 + 8) × (888/8 + 8) := 9 + (9 × (9 × (9 + 9) + 99) + ((99 + 9)/9)) := 9 × 9 + ((9 + 9) × 99 + (((9 + 9)/9)9 )) := (99/9 + 9) × ((99/9 + 99) + 9) Ï 2371 := ((11 + (11 − 1)) × (1 + 1 + 111)) − 1 − 1 Ï 2376 := (1 + 1) × (11 × (111 − 1 − 1 − 1)) Ï 2381 := (1 + 1)11 + (1 + 1 + 1) × 111 := ((22 − 2/2) × (222/2 + 2)) − 2 := 22 × ((222 − 2)/2 − 2) := 2 + ((((2/2 + 2 + 2) + 2)2+2 ) − 22) := (((33 × (3 + 3)3 ) + 3)/3) − 3 − 3 := 3 × (33 × (33 − 3)) := 3 + ((((33 × (3 + 3)3 ) − 3)/3) + 3) := 4 + ((44 × (44 + 4) − 4/4) + 44 ) := 44 × ((44 − 4)/4 + 44) := (((4 − 4/4) + 4)4 ) − 4 × 4 − 4 := 55 + (5/5 − (5 × 5 × (5 × 5 + 5) + 5)) := 55 + (5/5 − 5 × 5 × (5 × 5 + 5)) := 5 + ((5/5 − 5 × 5 × (5 × 5 + 5)) + 55 ) := 6/6 + (6 × 6 × 66 − 6) := 6 × 6 × 66 := 6 + (6 × 6 × 66 − 6/6) := 7 + (7 × (7 × 7 × 7 − 7) + (77 + 7)/7) := 7 × 7 × 7 × 7 − (77/7 + 7 + 7) := 7/7 + (7 × 7 × 7 × 7 − (7 + 7 + 7)) := 8 + ((8/8 + 8 + 8) × (8 × (8 + 8) + (88/8))) := 88 × (88/8 + 8 + 8) := 88 + (((88 + 8) × (8 + 8 + 8)) − (88/8)) := ((99 + 99)/9) + 9 × (9 × (9 + 9) + 99) := 999 + 9 × (9 × (9 + 9) − 9) := 9 + ((((9 + 9)/9)99/9 ) + (9 + 9) × (9 + 9)) Ï 2372 := ((11 + (11 − 1)) × (1 + 1 + 111)) − 1 Ï 2377 := 1 + ((1 + 1) × (11 × (111 − 1 − 1 − 1))) Ï 2382 := 1 + ((1 + 1)11 + (1 + 1 + 1) × 111) := 2 × ((2 × (222 − 2)) + 222) := (2 × 22)2 + ((22 − 2/2)2 ) := 2 + ((2 × 22)2 + 2 × 222) := (((33 × (3 + 3)3 ) − 3)/3) − 3 := ((33 × (3 + 3)3 ) + 3)/3 := 3 + ((3 × (33 × (33 − 3))) + 3) := 4 + (44 × (44 + 4) + 44 ) := (((4 − 4/4) + 4)4 ) − ((4 × 4 + 4) + 4) := 4/4 + ((((4 − 4/4) + 4)4 ) − (4 × 4 + 4)) := (5 − 5/5) × (55 /5 − ((5 + 5)/5)5 ) := 55 + ((5 + 5)/5 − 5 × 5 × (5 × 5 + 5)) := 5 + (((5 + 5)/5 − 5 × 5 × (5 × 5 + 5)) + 55 ) := (6 + 6)/6 + (6 × 6 × 66 − 6) := 6/6 + 6 × 6 × 66 := 6 + 6 × 6 × 66 := 7 × 7 × 7 × 7 − ((77 + 7)/7 + 7) := 7 × (7 × 7 × 7 + 7) − 7/7 − 77 := 7 + ((7 × (7 × 7 × 7 − 7) + (77/7)) + 7) := ((8 × 8 × 88) − 888)/((8 + 8)/8) := 8/8 + (88 × (88/8 + 8 + 8)) := 8 + ((88 × (88/8 + 8 + 8)) − ((8 + 8)/8)) := (9 + 9) × (9 + 9) + (((9 + 9)/9)99/9 ) := 9/9 + (9 × (9 × (9 + 9) − 9) + 999) := 9 + (((99 × (9 × 9 − 9)) − 9)/((9 + 9 + 9)/9)) 168 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2383 := 1 + (1 + ((1 + 1)11 + (1 + 1 + 1) × 111)) Ï 2388 := 1 + (11 × ((1 + 1) × (111 − 1 − 1) − 1)) Ï 2393 := ((1 + 1) × ((11 × (111 − 1 − 1)) − (1 + 1))) − 1 := (2 + 2 + 2) × ((22 − 2) − 2) := 2 + (((22/2 + 2)2 ) + 2222) := 3 + ((((33 × (3 + 3)3 ) + 3)/3) + 3) := 3 + (3 × ((33 × (33 − 3)) + 3)) := 3 + ((33/3 × ((3 + 3)3 + 3/3)) + 3) := 4 + ((44 × 44 − 4/4) + 444) := 4 + ((44 × 44 + 444) + 4) := (((4 − 4/4) + 4)4 ) − 4 − 4 := 55 − ((((555 + 55 ) + 5)/5) + 5) := 55 − (((555 + 55 ) + 5)/5) := 5 + (55 − (((555 + 55 ) + 5)/5)) := 6 + (6 × 6 × 66 + 6/6) := 6 + (6 × 6 × 66 + 6) := 6 + (6 × 6 × 66 + (66/6)) := 7 × 7 × 7 × 7 − (77/7 + 7) := 7/7 + (7 × 7 × 7 × 7 − (7 + 7)) := 7 × 7 × 7 × 7 − (7/7 + 7) := 8 + ((88 × (88/8 + 8 + 8)) − 8/8) := ((88 + 8)/8) × (888/8 + 88) := ((8 − 8/8)8×8/(8+8) ) − 8 := 9 + (((9 + 9)/9) × (((99 × (99 + 9)) − 9)/9)) := ((99 + 9)/9) × ((9/9 + 99) + 99) := 99 + ((9 + 9) × 99 + (((9 + 9)/9)9 )) := 2 + (((((2/2 + 2 + 2) + 2) 2+2 ) − 22) + 2) 2 Ï 2384 := (1 + 1)11 + ((1 + 1 + 1) × (1 + 111)) Ï 2389 := 1 + (1 + (11 × ((1 + 1) × (111 − 1 − 1) − 1))) 2 := 2/2 + ((2 + 2 + 2) × ((22 − 2)2 − 2)) := 2 × ((2 × 22 + 222) + 2) 3 := 3 × 3 + (((33 × (3 + 3) ) − 3)/3) := 3 + ((3 × ((33 × (3 − 3)) + 3)) + 3/3) 4 := 4 + (44 × 44 + 444) 5 3 := 4 + ((((4 − 4/4) + 4) ) − 4 × 4) 5 := 5 − ((555 + 5 )/5 + 5) 5 5 Ï 2394 := (1 + 1) × ((11 × (111 − 1 − 1)) − (1 + 1)) := 2 + (2 × (2 × (((22 + 2)2 ) + 22))) := 3 × (((33 × (33 − 3)) + 3) + 3) := 4 + ((((4 − 4/4) + 4)4 ) − 44/4) := 5 − (555 + 5 )/5 := 5 + (55 − (555 + 55 )/5) := 6 + (6 × 6 × 66 + ((6 + 6)/6)) := 6 + (6 × 6 × 66 + 6/6 + 6) := 6 + ((6 × 6 × 66 + 6) + 6) := ((7 − 77)/7) + (7 × 7 × 7 × 7 − 7) := 7 × 7 × 7 × 7 − (77 + 7)/7 := 7 × 7 × 7 × 7 − 7 8×8/(8+8) := 8 + (88 × (88/8 + 8 + 8)) := ((8 − 8/8) := (9 − 9/9) × ((99 × (9 + 9 + 9) + 9)/9) := 9 + ((99/9 + 9) × ((99/9 + 99) + 9)) Ï 2385 := 1 + ((1 + 1)11 + ((1 + 1 + 1) × (1 + 111))) ) − (88 + 8)/8 Ï 2390 := (11 − 1) × (((1 + 1) × (111+1 − 1)) − 1) := (2/2 + 2)2+2 + ((2 × (22 + 2))2 ) := 2 + ((2 + 2 + 2) × ((22 − 2)2 − 2)) := 3 × ((33 × (33 − 3)) + 3) := 3 + (33/3 × ((3 + 3)3 + 3/3)) := (((4 − 4/4) + 4)4 ) − 4 × 4 := 5 + ((5 × (5 × (5 × (5 × 5 − 5) − 5))) + 5) 4 := (((4 − 4/4) + 4) ) − 44/4 5 5 := 8/8 + (((8 − 8/8)8×8/(8+8) ) − 8) := 9 + (9 × ((((9 + 9)/9)9−9/9 ) + 9)) Ï 2395 := ((1 + 1) × ((11 × (111 − 1 − 1)) − 1)) − 1 := 22 × (222/2 − 2) − 2/2 − 2 := (((3/3 + 3) + 3)3/3+3 ) − 3 − 3 := (((4 − 4/4) + 4)4 ) − ((4 + 4)/4 + 4) := 5 + ((5 − (555 + 5 ))/5) := 6 + (6 × 6 × 66 + (6 × 6/(6 + 6))) := 55 × 55 − (55 /5 + 5) := 6 + ((6 × 6 × 66 + ((6 + 6)/6)) + 6) := 7 × 7 × 7 × 7 − (((7 + 7)/7 + 7) + 7) := 7 × 7 × 7 × 7 − 77/7 := ((6/6 + 6)6−(6+6)/6 ) − 6 := ((8 − 8/8)8×8/(8+8) ) − 8 − 8 := ((8 − 8/8)8×8/(8+8) ) − 88/8 := 9 × ((((9 + 9)/9)9−9/9 ) + 9) := ((8/8 + 88) × (88/8 + 8 + 8)) − 8 := 9 + (((((9 + 9)/9)99/9 ) + (9 + 9) × (9 + 9)) + 9) := 9 × (9 + 9) × (9 + 9) − ((((9 + 9)/9)9 ) + 9) Ï 2386 := (11 × ((1 + 1) × (111 − 1 − 1) − 1)) − 1 2 := ((2 + 2 + 2) × ((22 − 2) − 2)) − 2 3 Ï 2391 := 1 + ((11 − 1) × (((1 + 1) × (111+1 − 1)) − 1)) := 2222 + ((22/2 + 2)2 ) 3 := 7/7 + (7 × 7 × 7 × 7 − 7) Ï 2396 := (1 + 1) × ((11 × (111 − 1 − 1)) − 1) := 22 × (222/2 − 2) − 2 := 3 × 3 + (((33 × (3 + 3) ) + 3)/3) := 3 + ((3 × ((33 × (3 − 3)) + 3)) + 3) := 3 × 3 + (33/3 × ((3 + 3)3 + 3/3)) := 4/4 + ((((4 − 4/4) + 4)4 ) − 4 × 4) := (4 − 44)/4 + (((4 − 4/4) + 4)4 ) := ((4 + 4) × (44 + 44 )) − 4 := 55 + (55/5 − 5 × 5 × (5 × 5 + 5)) := (((5 + 5)/5 + 5)5−5/5 ) − 5 − 5 := (((5 + 5)/5 + 5)5−5/5 ) − 5 := 6 × 6 × 66 + (66 − 6)/6 := 6 + ((6 × 6 × 66 + (6 × 6/(6 + 6))) + 6) := 6 + (((6 × 6 × 66 + ((6 + 6)/6)) + 6) + 6) := 7 × 7 × 7 × 7 − (7/7 + 7 + 7) := ((7 − 77)/7) + 7 × 7 × 7 × 7 := (7 + 7)/7 + (7 × 7 × 7 × 7 − 7) := 8 + ((88 × (88/8 + 8 + 8)) + ((8 + 8)/8)) := 88 + (((88 + 8) × (8 + 8 + 8)) − 8/8) := ((8 × (8 × 8 × 8 + 88)) − 8)/((8 + 8)/8) := 9/9 + (9 × ((((9 + 9)/9)9−9/9 ) + 9)) := ((99/9 + 9) × (999/9 + 9)) − 9 := 9 + (((9/9 + 9 × 9) × (99/9 + 9 + 9)) + 9) Ï 2387 := 11 × ((1 + 1) × (111 − 1 − 1) − 1) := 22/2 × (222 − (2/2 + 2 + 2)) 3 Ï 2392 := 11 + ((1 + 1)11 + (1 + 1 + 1) × 111) := 2 × (2 × (((22 + 2)2 ) + 22)) 3/3+3 Ï 2397 := ((1 + 1) × (11 × (111 − 1 − 1))) − 1 := 22 × (222/2 − 2) − 2/2 := (3 × (33 × (33 + 3))) − 33 := 33/3 × ((3 + 3) + 3/3) := (((3/3 + 3) + 3) := (4 + 4)/4 + ((((4 − 4/4) + 4)4 ) − 4 × 4) := (4 + 4) × ((44 − 4/4) + 44 ) := (((4 − 4/4) + 4)4 ) − 4 := 55 − ((((555 + 55 ) + 5) + 5)/5) := (5 − 5/5) × ((55 − 5 − 5)/5 − 5 × 5) := 5/5 + ((((5 + 5)/5 + 5)5−5/5 ) − 5) := 66/6 + 6 × 6 × 66 := 6 + (6 × 6 × 66 + ((66 − 6)/6)) := 6 × 6 × 66 + ((6 × 6 + 6)/((6 + 6)/6)) := 7 × 7 × 7 × 7 − (7 + 7) := 7 × 7 × 7 × 7 − ((7 + 7)/7 + 7) := 7 + (7 × 7 × 7 × 7 − (77/7)) := 88/8 + (88 × (88/8 + 8 + 8)) := 88 + ((88 + 8) × (8 + 8 + 8)) := (88/8 − 8) × (888 − (8/8 + 88)) := 9 + ((9/9 + 9 × 9) × (99/9 + 9 + 9)) := (((9 − 9/9) + 9) + 9) × ((99/9) + 9 × 9) := 9 + (((99 + 9)/9) × ((9/9 + 99) + 99)) )−3×3 169 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2398 := (1 + 1) × (11 × (111 − 1 − 1)) := 22 × (222/2 − 2) Ï 2403 := 1 + (1 + ((1 + ((1 + 1) × (1 + 1 + 1)))1+1+1+1 )) := 2 + (((2/2 + 2 + 2) + 2) 3/3+3 2+2 Ï 2408 := (11 × (((1 + 1) × (111 − 1)) − 1)) − 1 := ((2/2 + 2 + 2) × (222 − 2)) − 2 ) := (3 + 3)3 + 3 × 33+3 := ((33 × ((3 + 3)3 + 3)) − 3)/3 := 4/4 + ((((4 − 4/4) + 4)4 ) − 4) := (4 + 4)/4 + (((4 − 4/4) + 4)4 ) := 4 + (((4 + 4) × (44 + 44 )) + 4) := 55 × 55 − (55 + 5 + 5)/5 := 5 + (55 × 55 − (55 + 5 + 5)/5) := (5 − 5/5) × ((55 + 5 + 5)/5 − 5 × 5) := 66/6 × (6 × 6 × 6 + (6 + 6)/6) := 6 × 6 × 6 + ((6 × 6/(6 + 6))6/6+6) := (6 + 6)/6 + (6 × (6 × 66 + 6) − 6) := 7 × 7 × 7 × 7 − (7 + 7 + 7)/7 := (7 + 7)/7 + 7 × 7 × 7 × 7 := 7 + 7 × 7 × 7 × 7 := ((8 + 8)/8) × (8888/8 + 88) := (8/8 + 88) × (88/8 + 8 + 8) := 8 + ((88 + 8) × (8/8 + 8 + 8 + 8)) := (9/9 + 99 + 9) × ((99 + 99)/9) := (9 + 9 + 9) × ((9 × 9 − 9/9) + 9) := ((9 + 9) × (9 × 9 − 9)) + (9999 + 9)/9 := (((3/3 + 3) + 3) )−3 Ï 2399 := 1 + ((1 + 1) × (11 × (111 − 1 − 1))) := (((2/2 + 2 + 2) + 2)2+2 ) − 2 3 3 Ï 2404 := (1 + 1) × (1 + (1 + (1 + (11 × (111 − 1 − 1))))) 2 := 2 + (((2 + 2 + 2) × (22 − 2) ) + 2) Ï 2409 := 11 × (((1 + 1) × (111 − 1)) − 1) := 22/2 × (222 − (2/2 + 2)) := 33 × (((3 + 3)3 + 3)/3) := 3 + ((((33 × (3 + 3) ) − 3)/3) − 3) := 3 + (((3/3 + 3) + 3) := (((4 − 4/4) + 4)4 ) − (4 + 4)/4 := 4 + ((4 + 4) × (44 + 44 )) := 4 + ((((4 − 4/4) + 4)4 ) + 4) := 5 × 5 × 55 + (5 − 5/5)5 := 5 + (5 × 5 × 55 + (5 − 5/5)5 ) := 5 + ((5 × 5 × 55 + (5 − 5/5)5 ) + 5) := 6 + ((6 × 6 × 66 + (66/6)) + 6) := ((6 + 6)/6)6 + 6 × (6 × 66 − 6) := 6 × 6 × 66 + (66 × 6/(6 + 6)) := 7 × 7 × 7 × 7 − (7 + 7)/7 3/3+3 ) := 7 × 7 × 7 × 7 + (7 + 7 + 7)/7 := 7 + (7 × 7 × 7 × 7 + 7/7) := ((8 − 8/8)8×8/(8+8) ) − (8 + 8)/8 := ((8 × (8 × 8 × 8 + 88)) + 8)/((8 + 8)/8) := 8 + ((8 − 8/8)8×8/(8+8) ) := ((99/9 + 9) × (999/9 + 9)) − 9/9 := 9 × (9 + 9) × (9 + 9) − (((9 + 9)/9)9 ) := 9 + ((99/9 + 9) × (999/9 + 9)) Ï 2400 := (1 + 1) × (1 + (11 × (111 − 1 − 1))) := (2 + 2 + 2) × (22 − 2)2 3 := (3 + 3) + (3 × 3 3+3 Ï 2405 := ((1 + 1) × ((11 × (111 − 1)) − (1 + 1))) − 11 := 2 + ((((2/2 + 2 + 2) + 2) − 3) 2+2 ) + 2) Ï 2410 := 1 + (11 × (((1 + 1) × (111 − 1)) − 1)) := (2/2 + 2 + 2) × (222 − 2) := (((33 × ((3 + 3)3 + 3)) − 3)/3) − 3 := ((33 × ((3 + 3)3 + 3)) + 3)/3 := (4 + 4) × (44 + 4 ) := 4 + (((4 − 4/4) + 4)4 ) := 4 + (((((4 − 4/4) + 4)4 ) + 4/4) + 4) := (5 × 5 − 5) × (5 × 5 × 5 − 5) 4 := 5 + ((5 × 5 − 5) × (5 × 5 × 5 − 5)) := 5 + (((5 × 5 − 5) × (5 × 5 × 5 − 5)) + 5) := 6 × (6 × 66 + 6) − 6 − 6 := (6 × 6 + 6/6) × (66 − 6/6) := 6 × (6 × 66 + 6) − (6 + 6)/6 := 7 × 7 × 7 × 7 − 7/7 := 77/7 + (7 × 7 × 7 × 7 − 7) := 7 + (7 × 7 × 7 × 7 + ((7 + 7)/7)) := (88 + 8) × (8/8 + 8 + 8 + 8) := (8/8 + 8 × 8) × 888/(8 + 8 + 8) := 8 + (((8 − 8/8)8×8/(8+8) ) + 8/8) := (99/9 + 9) × (999/9 + 9) := 9/9 + (9 × (9 + 9) × (9 + 9) − (((9 + 9)/9)9 )) := 9 + ((9 − ((9 + 9)/9))(9×9−9)/(9+9) ) Ï 2401 := (1 + ((1 + 1) × (1 + 1 + 1)))1+1+1+1 := ((2/2 + 2 + 2) + 2)2+2 := (2/2 + 2) × (2 × (22 − 2)2 + 2) := ((3/3 + 3) + 3)3/3+3 := ((4 − 4/4) + 4) 4 := ((5 + 5)/5 + 5) 5−5/5 Ï 2406 := (11 × (((1 + 1) × (111 − 1)) − 1)) − 1 − 1 − 1 := 3 + (3 × 3 3+3 Ï 2411 := 1 + (1 + (11 × (((1 + 1) × (111 − 1)) − 1))) := 2 + (22/2 × (222 − (2/2 + 2))) := ((33/3 + 3)3 ) − 333 3 + (3 + 3) ) := 4 + ((((4 − 4/4) + 4)4 ) + 4/4) := 44/4 + ((4 + 4) × (44 + 44 )) := (6/6 + 6)6−(6+6)/6 := 5 + (((5 + 5)/5 + 5)5−5/5 ) := 5 + ((((5 + 5)/5 + 5)5−5/5 ) + 5) := 6 × (6 × 66 + 6) − 6 := 6 × (6 × 66 + 6) − 6/6 := 7 × 7 × 7 × 7 := (8 − 8/8)8×8/(8+8) := 7 + (7 × 7 × 7 × 7 − ((7 + 7)/7)) := 7 × 7 × 7 × 7 + (77 − 7)/7 := 8 + (((8 + 8)/8) × (8888/8 + 88)) := 8 + ((8/8 + 88) × (88/8 + 8 + 8)) := (9 − ((9 + 9)/9))(9×9−9)/(9+9) := ((9 + 9 + 9)/9) × ((9 × (9 × 9 + 9) − 9) + 9/9) := (9 × 9 + 9) × (9 + 9 + 9) − (9/9 + 9 + 9) Ï 2402 := 1 + ((1 + ((1 + 1) × (1 + 1 + 1)))1+1+1+1 ) 2 := 2 + ((2 + 2 + 2) × (22 − 2) ) 3 3 Ï 2407 := (11 × (((1 + 1) × (111 − 1)) − 1)) − 1 − 1 := 2 + (((((2/2 + 2 + 2) + 2) 2+2 ) + 2) + 2) Ï 2412 := (1 + 11) × (1 + ((1 + 1) × (11 − 1)1+1 )) := (2 + 2 + 2) × ((22 − 2)2 + 2) := 3 + ((((3/3 + 3) + 3)3/3+3 ) + 3) := 3 + (33 × (((3 + 3)3 + 3)/3)) := 4/4 + (((4 − 4/4) + 4) ) := 4 + ((((4 − 4/4) + 4)4 ) + (4 + 4)/4) := 44/4 + (((4 − 4/4) + 4)4 ) := 5/5 + (((5 + 5)/5 + 5)5−5/5 ) := 5 + ((((5 + 5)/5 + 5)5−5/5 ) + 5/5) := 55/5 + (((5 + 5)/5 + 5)5−5/5 ) := 6/6 + ((6/6 + 6)6−(6+6)/6 ) := 6 + ((6/6 + 6)6−(6+6)/6 ) := 6 × (6 × 66 + 6) := 7/7 + 7 × 7 × 7 × 7 := 7 + (7 × 7 × 7 × 7 − 7/7) := 77/7 + 7 × 7 × 7 × 7 := 3 + (((33 × (3 + 3) ) − 3)/3) 4 8×8/(8+8) := 8/8 + ((8 − 8/8) ) := 999 + ((((9 + 9)/9)9 ) + 9 × 99) 8×8/(8+8) := 8 + (((8 − 8/8) ) − ((8 + 8)/8)) := ((9 + 9) × (9 × 9 − 9)) + 9999/9 170 := 88/8 + ((8 − 8/8)8×8/(8+8) ) := (9 × 9 + 9) × (9 + 9 + 9) − (9 + 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2413 := 1 + ((1 + 11) × (1 + ((1 + 1) × (11 − 1)1+1 ))) 2 Ï 2418 := (1 + 1) × ((11 × (111 − 1)) − 1) 2 2 Ï 2423 := 1 + ((1 + 1) × (1 + (11 × (111 − 1)))) := 2/2 + ((2 + 2 + 2) × ((22 − 2) + 2)) := 22 + ((2 × 22) − 2) := 2 + (((22 × (222 − 2)) + 2)/2) := 3 + (((33 × ((3 + 3)3 + 3)) + 3)/3) := (3 × ((33 × (33 + 3)) − 3)) − 3 := 3 + (33 × 33 + (33/3)3 ) := 4 + (((((4 − 4/4) + 4)4 ) + 4) + 4) := 4 × 4 + ((((4 − 4/4) + 4)4 ) + 4/4) := 4 + ((4 × (4/4 + 4)4 ) − (4 − 4/4)4 ) := 5 + ((5 − 5/5) × ((55 + 5 + 5)/5 − 5 × 5)) := 5555 − (((55 + 5)/5) + 55 ) := 5555 − (((5 + 5)/5 + 55 ) + 5) := 6/6 + 6 × (6 × 66 + 6) := 6 + 6 × (6 × 66 + 6) := 66/6 + 6 × (6 × 66 + 6) := 7 × 7 × 7 × 7 + (77 + 7)/7 := 7 + (7 × 7 × 7 × 7 + ((77 − 7)/7)) := 7 + (((7 × 7 × 7 × 7 + 7/7) + 7) + 7) := 8 + ((((8 − 8/8)8×8/(8+8) ) + 8/8) + 8) := ((8 + 8) × (8 × 8 + 88)) − (8/8 + 8) := (9 × 9 + 9) × (9 + 9 + 9) − (99 + 9)/9 := (9 + 9)/9 + ((9 × 9 + 9) × (9 + 9 + 9) − 9) := (88/8 + 8) × (8 × (8 + 8) − 8/8) 9 := 9 + (9 × (9 + 9) × (9 + 9) − (((9 + 9)/9) )) Ï 2414 := (1 + 1) × ((11 × (111 − 1)) − (1 + 1 + 1)) Ï 2419 := ((1 + 1) × (11 × (111 − 1))) − 1 Ï 2424 := (1 + 1) × (1 + (1 + (11 × (111 − 1)))) := 2 + ((2 + 2 + 2) × ((22 − 2)2 + 2)) := ((22 × (222 − 2)) − 2)/2 := 2 + (((2 × 22)2 + 222 ) + 2) := 3 + (((33/3 + 3)3 ) − 333) := (3 × (33 × (33 + 3))) − 33/3 := 3 + (3 × ((33 × (33 + 3)) − 3)) := 4 + ((((((4 − 4/4) + 4)4 ) + 4/4) + 4) + 4) := (4 × (4/4 + 4)4 ) − (4 − 4/4)4 := 4 + 44 × (44/4 + 44) := 5 × 5 + (55 − (555 + 55 )/5) := 5555 − (55/5 + 55 ) := (5 − 5/5) × ((55 × 55 + 5)/5) := (6 + 6)/6 + 6 × (6 × 66 + 6) := 6 + (6 × (6 × 66 + 6) + 6/6) := 7 + ((7 × 7 × 7 × 7 − 7/7) + 7) := 7 + (7 × 7 × 7 × 7 + (77/7)) := 8/8 + ((88/8 + 8) × (8 × (8 + 8) − 8/8)) := 8 + (((8/8 + 88) × (88/8 + 8 + 8)) + 8) := (9 + 9)/9 + ((9 × 9 + 9) × (9 + 9 + 9) − (9 + 9)) := (9 × 9 + 9) × (9 + 9 + 9) − 99/9 Ï 2415 := ((1 + 1) × ((11 × (111 − 1)) − (1 + 1))) − 1 Ï 2420 := (1 + 1) × (11 × (111 − 1)) := 6 + (6 × (6 × 66 + 6) + 6) := 7 + (((7 × 7 × 7 × 7 + ((7 + 7)/7)) + 7) + 7) := ((8 + 8) × (8 × 8 + 88)) − 8 := ((9 + 9)/9) × (((99/9) × 999/9) − 9) Ï 2425 := 1 + ((1 + 1) × (1 + (1 + (11 × (111 − 1))))) := (22/2)2 + ((2 × (22 + 2))2 ) := 222/2 + ((2 × (22 + 2))2 ) := 22 × (222 − 2)/2 := 3 + ((33 × (((3 + 3)3 + 3)/3)) + 3) := 33 × 33 + (33/3)3 := (4/4 + 4) × ((44 × 44 − 4)/4) := 44 × (44/4 + 44) := 4 + (((((4 − 4/4) + 4)4 ) + 4 × 4) + 4) := (55 × (55 − (55/5))) − 5 := 55 × (55 − (55/5)) := 5555 − (55 + 5) := (6 × 6/(6 + 6)) + 6 × (6 × 66 + 6) := 6 + (6 × (6 × 66 + 6) + ((6 + 6)/6)) := 6 + ((6 × (6 × 66 + 6) + 6/6) + 6) := 7 + (7 × 7 × 7 × 7 + 7) := 7 + (7 × 7 × 7 × 7 + (77 + 7)/7) := 7 + ((7 × 7 × 7 × 7 + ((77 − 7)/7)) + 7) := (88/((8 + 8)/8)) × (8 × 8 − (8/8 + 8)) := 8/8 + (((8 + 8) × (8 × 8 + 88)) − 8) := (9/9 + 9) × (9 × (9 + 9 + 9) − 9/9) := ((9 − 99)/(9 + 9)) + (9 × 9 + 9) × (9 + 9 + 9) := 888/8 + ((88 + 8) × (8 + 8 + 8)) 9−9/9 := 999/9 + (9 × (((9 + 9)/9) )) Ï 2416 := (1 + 1) × ((11 × (111 − 1)) − (1 + 1)) := 3 + ((3 × ((33 × (33 + 3)) − 3)) + 3/3) Ï 2421 := 1 + ((1 + 1) × (11 × (111 − 1))) Ï 2426 := (1 + 1) × (1 + (1 + (1 + (11 × (111 − 1))))) 2 := 22 + (2 × (2 × 22 − 2)) := ((22 × (222 − 2)) + 2)/2 := (22 × 222/2) − 22+2 := 3 + ((((33 × ((3 + 3)3 + 3)) + 3)/3) + 3) := 3 × ((33 × (33 + 3)) − 3) := (3 × (33 × (33 + 3))) − (3/3 + 3) := 4 × (((4 + 4) × 44 − 4) + 44 ) := 4 + ((((4 − 4/4) + 4)4 ) + 4 × 4) := (((4/4 + 4) × (44 × 44 + 4)) + 4)/4 := (5 − 5/5) × ((55 × 55 − 5)/5) := 5/5 + (55 × (55 − (55/5))) := 5 × 5 + (((5 + 5)/5 + 5)5−5/5 ) := 6 + (6 × (6 × 66 + 6) − ((6 + 6)/6)) := 6 + (6 × (6 × 66 + 6) + (6 × 6/(6 + 6))) := 6 + ((6 × (6 × 66 + 6) + ((6 + 6)/6)) + 6) := 7 + ((7 × 7 × 7 × 7 + 7/7) + 7) := 7 + (((7 × 7 × 7 × 7 − 7/7) + 7) + 7) := 7 + ((7 × 7 × 7 × 7 + (77/7)) + 7) := (8 + 8) × ((88 − 8/8) + 8 × 8) := ((8 + 8) × (8 × 8 + 88)) − 88/8 := (8 + 8)/8 + (((8 + 8) × (8 × 8 + 88)) − 8) := 9 + (((9 + 9) × (9 × 9 − 9)) + 9999/9) := (9 × 9 + 9) × (9 + 9 + 9) − 9 := ((9 − 9 × 9)/(9 + 9)) + (9 × 9 + 9) × (9 + 9 + 9) 2 Ï 2417 := ((1 + 1) × ((11 × (111 − 1)) − 1)) − 1 := (((22 × (222 − 2)) − 2)/2) − 2 Ï 2422 := (1 + 1) × (1 + (11 × (111 − 1))) Ï 2427 := ((1 + 1) × (11 × 111 − (1 + 1))) − 11 := 2 + ((2 × 22) + 22 ) := 2 + (((2 × (22 + 2))2 ) + (22/2)2 ) := 3/3 + (3 × ((33 × (33 + 3)) − 3)) := (3 × (33 × (33 + 3))) − 3 := 4 × 4 + (((4 − 4/4) + 4) ) := 4 + (((((4 − 4/4) + 4)4 ) + 4 × 4) + 4/4) := (4 × ((4 + 4) × 44 + 44 )) − (4/4 + 4) := 5 + ((((5 + 5)/5 + 5)5−5/5 ) + (55/5)) := (5 + 5)/5 + (55 × (55 − (55/5))) := (5 + 5)/5 + (5555 − (55 + 5)) := 6 + (6 × (6 × 66 + 6) − 6/6) 3 := 33 × 33 + ((33/3) − 3) 4 2 2 := ((66 − 6)/6) + 6 × (6 × 66 + 6) := 6 + ((6 × (6 × 66 + 6) + (6 × 6/(6 + 6))) + 6) := 7 + ((7 × 7 × 7 × 7 + ((7 + 7)/7)) + 7) := 7 + ((7 × 7 × 7 × 7 + 7) + 7) := 7 + ((7 × 7 × 7 × 7 + (77 + 7)/7) + 7) := 8 + (((8 − 8/8)8×8/(8+8) ) + 8) := (8 − 88)/8 + ((8 + 8) × (8 × 8 + 88)) := 88/8 + ((8 + 8) × ((88 − 8/8) + 8 × 8)) := 99 × (9 + 9 + 9) − (((9 + 9)/9)9−9/9 ) := 9/9 + ((9 × 9 + 9) × (9 + 9 + 9) − 9) := ((9 + 9 + 9)/9) × (9 × (9 × 9 + 9) − 9/9) 171 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2428 := (11 × ((1 + 1) × 111 − 1)) − 1 − 1 − 1 2 2 Ï 2433 := 1 + (1 + (11 × ((1 + 1) × 111 − 1))) Ï 2438 := (1 + 1) × (11 × 111 − (1 + 1)) := (22 × 222/2) − 2 − 2 := 22 + (2 × (2 × (22 + 2))) := 2 + (22/2 × (222 − 2/2)) := 33 + (((3/3 + 3) + 3)3/3+3 ) 3 := 3 + (3 × (3 × (3 + 3))) := (3 × ((33 × (33 + 3)) + 3)) − 3/3 := (4 × ((4 + 4) × 44 + 44 )) − 4 := 4 × (4 + 4) + (((4 − 4/4) + 4)4 ) := (4 + 4)/4 + (4 × ((4/4 + 4)4 − 4 × 4)) := 5555 − ((5 + 5)/5 + 55 ) := 5 + (5555 − ((5 + 5)/5 + 55 )) := 55 + ((5 − 5 × 5 × 5 × 55)/(5 + 5)) := 6 + (6 × (6 × 66 + 6) + ((66 − 6)/6)) := 66 + ((((6 − 66) + 6)/6) + 6 × 6 × 66) := 6 + (((6 + 6)/6)6 × ((6 + 6)/6 + 6 × 6)) := 77 + (7 × (7 × 7 × 7 − 7) − 7/7) := 7 + (((7 × 7 × 7 × 7 + (77/7)) + 7) + 7) := 7 × (7 × 7 × 7 + 7) − (77 + 7)/7 := ((8 + 8) × (8 × 8 + 88)) − (8/((8 + 8)/8)) := 8/8 + ((8 + 8) × (8 × 8 + 88)) := 8 + (((8 + 8) × (8 × 8 + 88)) − ((8 + 8)/8)) := (9 × 9 + 9) × (9 + 9 + 9) − (9 + 9)/9 := ((9 + 9 + 9)/9) + (9 × 9 + 9) × (9 + 9 + 9) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) − 9/9) Ï 2429 := (11 × ((1 + 1) × 111 − 1)) − 1 − 1 := (22/2 × (222 − 2/2)) − 2 3 3 3 Ï 2434 := 1 + (1 + (1 + (11 × ((1 + 1) × 111 − 1)))) Ï 2439 := ((1 + 1) × (11 × 111 − 1)) − 1 := (22 × 222/2) − 2 × (2 + 2) := (((22 × 222) − 2)/2) − 2 3 3 := (3 × (3 × (3 + 3))) − 3/3 := 3 + ((3 × (3 × (3 + 3))) + 3/3) := 3 × ((33 × (33 + 3)) + 3) := 44 + ((((4 − 4/4) + 4)4 ) − 4 × 4) := 44 + ((((4 − 4/4) + 4)4 ) − 44/4) := 4 + ((4 × (4/4 + 4)4 ) − (44 + 4)/4) := 5555 − (55 + 5/5) := 5 + (5555 − (55 + 5/5)) := 55 − (((55 + 5)/5 + 55) + 5) 6 := 6 + (6 × (6 × 66 + 6) + (66/6)) := 6 × 6 × 66 + (((6 + 6)/6) − 6) := 66 + (6 × 6 × 66 − (6 × 6/(6 + 6))) := 77 + 7 × (7 × 7 × 7 − 7) := 7 × (7 × 7 × 7 + 7) − (((7 + 7)/7 + 7) + 7) := 7 × (7 × 7 × 7 + 7) − 77/7 := 8 + (((8 + 8) × (8 × 8 + 88)) − (88/8)) := (8 + 8)/8 + ((8 + 8) × (8 × 8 + 88)) := 8 + (((8 + 8) × (8 × 8 + 88)) − 8/8) := (9 × 9 + 9) × (9 + 9 + 9) − 9/9 := ((9 × 9 − 9)/(9 + 9)) + (9 × 9 + 9) × (9 + 9 + 9) := 9 + (9 × 9 + 9) × (9 + 9 + 9) Ï 2430 := (11 × ((1 + 1) × 111 − 1)) − 1 2 := (2/2 + 2 + 2) × (22 + 2) 3 Ï 2435 := ((1 + 1) × (1 + (1 + 11 × 111))) − 11 := 2 + ((22/2 × (222 − 2/2)) + 2) 3 3 3 Ï 2440 := (1 + 1) × (11 × 111 − 1) := (22 × 222/2) − 2 := 3 × (3 × (3 + 3)) := 3 + (((3 × (3 × (3 + 3))) − 3/3) + 3) := 3/3 + (3 × ((33 × (33 + 3)) + 3)) := (4/4 + 4) × (((44 × 44 + 4) + 4)/4) := (4 × (4/4 + 4)4 ) − (44 + 4)/4 := 4 + (4 × ((4/4 + 4)4 − 4 × 4)) := 5555 − 55 := 5 + (5555 − 55 ) := 5 + (5555 − 55 + 5) := 6 + ((6 × (6 × 66 + 6) + 6) + 6) := 66 + (6 × 6 × 66 − (6/6 + 6)) := 6 × 6 × 66 + ((6 + 6)/6)6 := 7/7 + (7 × (7 × 7 × 7 − 7) + 77) := 7 × (7 × 7 × 7 + 7) − (7/7 + 7 + 7) := ((7 − 77)/7) + 7 × (7 × 7 × 7 + 7) := ((8 + 8) × (8 × 8 + 88)) − (8 + 8)/8 := 88/8 + (((8 + 8) × (8 × 8 + 88)) − 8) := 8 + ((8 + 8) × (8 × 8 + 88)) := (9 × 9 + 9) × (9 + 9 + 9) := ((9 × 9 + 9)/(9 + 9)) + (9 × 9 + 9) × (9 + 9 + 9) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) + 9/9) Ï 2431 := 11 × ((1 + 1) × 111 − 1) Ï 2436 := (1 + 1) × (11 × 111 − (1 + 1 + 1)) Ï 2441 := ((1 + 1) × 11 × 111) − 1 := 22/2 × (222 − 2/2) := (22 × 222/2) − (2 + 2 + 2) := 3/3 + (3 × (33 × (33 + 3))) := ((22 × 222) − 2)/2 := 3 + ((3 × (33 × (33 + 3))) + 3) := 33/3 + (3 × (33 × (33 + 3))) 4 := (4 × ((4 + 4) × 44 + 4 )) − 4/4 5 4 := 4 × ((4/4 + 4) − 4 × 4) := 44 + ((((4 − 4/4) + 4)4 ) − 4) 5 := 5/5 + (5555 − 5 ) := 5 + ((5555 − 5 ) + 5/5) := 66 + (6 × 6 × 66 − (66/6)) := 55 + (((5 − 55 )/5) − (55 + 5)) := 66 + (6 × 6 × 66 − 6) := 77 + (7 × (7 × 7 × 7 − 7) + ((7 + 7)/7)) := 66 + (6 × 6 × 66 − 6/6) := 7 × (7 × 7 × 7 + 7) − (7 + 7) := ((8 + 8) × (8 × 8 + 88)) − 8/8 := 7 × (7 × 7 × 7 + 7) − ((7 + 7)/7 + 7) := (8 − 8/8) × ((8 × 88 − 8)/((8 + 8)/8)) := 9/9 + (9 × 9 + 9) × (9 + 9 + 9) := 8 + (((8 + 8) × (8 × 8 + 88)) + 8/8) := 9 + (((9 + 9 + 9)/9) × (9 × (9 × 9 + 9) − 9/9)) := 99/9 + (9 × 9 + 9) × (9 + 9 + 9) Ï 2432 := 1 + (11 × ((1 + 1) × 111 − 1)) Ï 2437 := ((1 + 1) × (11 × 111 − (1 + 1))) − 1 := 2 + ((2/2 + 2 + 2) × (222 + 2)) := (((22 × 222) − 2)/2) − 2 − 2 := 3 + ((3 × (33 × (33 + 3))) − 3/3) := 3 + (((3 × (33 × (33 + 3))) + 3/3) + 3) 4 := 4 × ((4 + 4) × 44 + 4 ) 5 := (5 + 5)/5 + (5555 − 5 ) 6 := ((6 + 6)/6) × ((6 + 6)/6 + 6 × 6) 7 4 Ï 2442 := (1 + 1) × 11 × 111 := 22 × 222/2 := 3 + (3 × ((33 × (33 + 3)) + 3)) := 4 + ((((4 − 4/4) + 4) ) + 4 × (4 + 4)) := 44/4 × (444/((4 + 4)/4)) := 5 + ((5555 − 55 ) + ((5 + 5)/5)) := 555/5 × (55 + 55)/5 := 6 × 6 + ((6/6 + 6) 6−(6+6)/6 ) := 66 + 6 × 6 × 66 := 7/7 + (7 × (7 × 7 × 7 + 7) − (7 + 7)) := 7 × (7 × 7 × 7 + 7) − (7/7 + 7) := (8 + 8) × (8 × 8 + 88) := 8 + ((((8 + 8) × (8 × 8 + 88)) − (88/8)) + 8) := 888/8 × (88 + 88)/8 := (9 + 9)/9 + (9 × 9 + 9) × (9 + 9 + 9) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) − ((9 + 9)/9)) := 999/9 × ((99 + 99)/9) := ((7 + 7)/7) × ((77 + 7)/7 + 7) 172 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2443 := 1 + ((1 + 1) × 11 × 111) := ((22 × 222) + 2)/2 Ï 2448 := (1 + 1) × (1 + (1 + (1 + 11 × 111))) := 2 22/2 + (22 − 2) 2 Ï 2453 := 11 × (1 + (1 + 1) × 111) := 22/2 × (222 + 2/2) := ((33 × (((3 + 3) + 3) + 3)) + 3)/3 := (33 − 3) × (3 × 33 + 3) := 33 + (33 × 33 + (33/3)3 ) := 44 + ((4 − 4/4)4+4−4/4 ) := 4 × (((4 + 4) × 44 + 44 ) + 4) := 4 + (((((4 − 4/4) + 4)4 ) + 44) + 4) := 55 − ((55 + 5 + 5)/5 + 55) := 5 + (55 − ((55 + 5 + 5)/5 + 55)) := 55 − ((5/5 + 5) × (555 + 5)/5) := 66 + (6 × 6 × 66 + 6/6) := 6 × (6 × 66 + 6 + 6) := 6 + ((6 × (6 × 66 + 6 + 6)) − 6/6) := 7 × (7 × 7 × 7 + 7) − 7 := 7 × (7 × 7 × 7 + 7) − (7 + 7)/7 := (7 + 7 + 7)/7 + 7 × (7 × 7 × 7 + 7) := 88/8 + ((8 + 8) × (8 × 8 + 88)) := 8 + (((8 + 8) × (8 × 8 + 88)) + 8) := 88/8 × (((8 × (8 + 8) − 8/8) + 88) + 8) := 9/9 + (999/9 × ((99 + 99)/9)) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) + 9) := 99/9 × (9 × (9 + 9 + 9) − (99/9 + 9)) 3 Ï 2444 := (1 + 1) × (1 + 11 × 111) Ï 2449 := 1 + ((1 + 1) × (1 + (1 + (1 + 11 × 111)))) Ï 2454 := 1 + (11 × (1 + (1 + 1) × 111)) := 2 + (22 × 222/2) := ((((2 × (22 + 2)) + 22) ) − 2)/2 := 2 × ((((22/2 + 22) + 2)2 ) + 2) := 3 + ((3 × (33 × (33 + 3))) + 33/3) := 3/3 + ((33 − 3) × (3 × 33 + 3)) := 33+3 + ((3 × 3 + 3)3 − 3) := 44 + ((4 + 4) × (44 + 44 )) := 4 + ((((4 − 4/4) + 4)4 ) + 44) := 4 + ((44 − 4)/4 × (44 − 44/4)) := 55 − ((55 + 5)/5 + 55) := 5 + (55 − ((55 + 5)/5 + 55)) := 5 + ((55 − ((55 + 5)/5 + 55)) + 5) := 66 + (6 × 6 × 66 + ((6 + 6)/6)) := 6/6 + (6 × (6 × 66 + 6 + 6)) := 6 + (6 × (6 × 66 + 6 + 6)) 2 := 7/7 + (7 × (7 × 7 × 7 + 7) − 7) := 7 × (7 × 7 × 7 + 7) − 7/7 := 77/7 + (7 × (7 × 7 × 7 + 7) − 7) := ((88 + 8)/8) + ((8 + 8) × (8 × 8 + 88)) := 8 + ((((8 + 8) × (8 × 8 + 88)) + 8/8) + 8) := ((8 + 8)/8) × (8 × (8 × 8 + 88) + (88/8)) := ((9 + 9)/9) × (((99 × 999/9) + 9)/9) := 9 + (((9 × 9 + 9) × (9 + 9 + 9) + 9/9) + 9) := 999 + (9 × 9 × (9 + 9) − ((9 + 9 + 9)/9)) Ï 2445 := 1 + ((1 + 1) × (1 + 11 × 111)) := 2 + (((22 × 222) + 2)/2) 3 Ï 2450 := 11 + (((1 + 1) × (11 × 111 − 1)) − 1) 2 Ï 2455 := 1 + (1 + (11 × (1 + (1 + 1) × 111))) := 2 + (22/2 × (222 + 2/2)) := 2 × (((22/2 + 22) + 2) ) := ((3 − 3) × (3 × 33 + 3)) − 3 := 3 + (((33/3 + 3) ) − 3 × 3 × 33) := 3/3 + (((3 × 3 + 3)3 − 3) + 33+3 ) := 44 + (((4 − 4/4) + 4)4 ) := (44 − 4)/4 × (44 − 44/4) := (4 × (4/4 + 4)4 ) − (44 + 4/4) := 55 − (55 /5 + 55) := (5 + 5) × (5 × 5 × (5 + 5) − 5) := 5 + ((5 + 5) × (5 × 5 × (5 + 5) − 5)) := 66 + (6 × 6 × 66 + (6 × 6/(6 + 6))) := (6 + 6)/6 + (6 × (6 × 66 + 6 + 6)) := 6 + ((6 × (6 × 66 + 6 + 6)) + 6/6) := (7 + 7)/7 + (7 × (7 × 7 × 7 + 7) − 7) := 7 × (7 × 7 × 7 + 7) := 7 + (7 × (7 × 7 × 7 + 7) − ((7 + 7)/7)) := (88/8 − 8) × (888/8 + 8 × 88) := 8 + (888/8 × (88 + 88)/8) := 8 + (((((8 + 8) × (8 × 8 + 88)) − 8/8) + 8) + 8) := 999 + (9 × 9 × (9 + 9) − ((99 + 9)/9)) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) + (99/9)) := 999 + (9 × 9 × (9 + 9) − ((9 + 9)/9)) Ï 2446 := (1 + 1) × (1 + (1 + 11 × 111)) 3 Ï 2451 := 11 + ((1 + 1) × (11 × 111 − 1)) Ï 2456 := 1 + (1 + (1 + (11 × (1 + (1 + 1) × 111)))) := 2 + ((22 × 222/2) + 2) := (22/2 × (222 + 2/2)) − 2 := (2 × (22 + 2) + 2)2 − (2 × 22) := 3 + (((33 × (((3 + 3)3 + 3) + 3)) + 3)/3) := 3 + ((33 − 3) × (3 × 33 + 3)) := 33+3 + ((3 × 3 + 3)3 − 3/3) := 44 + ((((4 − 4/4) + 4)4 ) + 4/4) := 4 + ((44 × ((4 + 4) + 4)) − (4/4 + 4)4 ) := (4 × (4/4 + 4)4 ) − 44 := 55 + (((5 − 55 )/5) − 55) := 5 + ((((5 − 55 )/5) − 55) + 55 ) := (5 − 5/5) × ((55 − 55)/5) := 6 + (6 × 6 × 66 + ((6 + 6)/6)6 ) := 666/6 + 6 × (6 × 66 − 6) := 6 + ((6 × (6 × 66 + 6 + 6)) + ((6 + 6)/6)) := 7 + (7 × (7 × 7 × 7 + 7) − (77/7)) := 7/7 + 7 × (7 × 7 × 7 + 7) := 7 + (7 × (7 × 7 × 7 + 7) − 7/7) := 8 + ((((8 + 8) × (8 × 8 + 88)) − ((8 + 8)/8)) + 8) := (88/8 + 8) × (8 × (8 + 8) + 8/8) := 8 + ((((8 + 8) × (8 × 8 + 88)) + 8) + 8) := 999 + (9 × 9 × (9 + 9) − (99/9)) := 9 + (999/9 × ((99 + 99)/9)) := 999 + (9 × 9 × (9 + 9) − 9/9) Ï 2447 := 1 + ((1 + 1) × (1 + (1 + 11 × 111))) := 2 + ((((22 × 222) + 2)/2) + 2) Ï 2452 := (11 × (1 + (1 + 1) × 111)) − 1 2 := 2 + (2 × (((22/2 + 22) + 2) )) Ï 2457 := 11 + ((1 + 1) × (1 + (1 + 11 × 111))) := 2 + ((22/2 × (222 + 2/2)) + 2) := ((33/3 + 3) ) − 3 × 3 × 33 := 3 + (((3 − 3) × (3 × 33 + 3)) + 3/3) := 33+3 + (3 × 3 + 3)3 := (44 × ((4 + 4) + 4)) − (4/4 + 4)4 := 4 × (((4/4 + 4)4 − 4 × 4) + 4) := 4/4 + ((4 × (4/4 + 4)4 ) − 44) := 55 + ((((5 − 55 ) + 5)/5) − 55) := (5 − 5/5) × ((55 − (55 + 5))/5) := 5 + ((5 − 5/5) × ((55 − (55 + 5))/5)) := (6 × (6 × 66 + 6 + 6)) − 6/6 := 6 + ((6 × 6 × 66 + ((6 + 6)/6)6 ) + 6) := 6 + (6 × (6 × 66 − 6) + 666/6) := 7 × (7 × 7 × 7 + 7) − (7 + 7 + 7)/7 := (7 + 7)/7 + 7 × (7 × 7 × 7 + 7) := 7 + 7 × (7 × 7 × 7 + 7) := 8 + ((((8 + 8) × (8 × 8 + 88)) − 8/8) + 8) := (((88 × (8 × 8 − 8)) − 8)/((8 + 8)/8)) − 8 := 8 × 8 + (((8 − 8/8)8×8/(8+8) ) − 8) := 9 + (((9 × 9 + 9) × (9 + 9 + 9) − 9/9) + 9) := ((99 + 99)/9) + (9 × 9 + 9) × (9 + 9 + 9) := 999 + 9 × 9 × (9 + 9) 3 3 173 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2458 := (1 + 1) × ((11 × (1 + 111)) − (1 + 1 + 1)) := 2 2+2 Ï 2463 := ((1 + 1) × (11 × (1 + 111))) − 1 + (22 × 222/2) Ï 2468 := (1 + 1) × (1 + (1 + (11 × (1 + 111)))) := 2 + 22 × (222 + 2)/2 + 2 := ((22 × (222 + 2)) − 2)/2 := 3/3 + ((3 × 3 + 3)3 + 33+3 ) := 33 + (3 × (3 × (3 + 3))) := 33+3 + ((3 × 3 + 3)3 + 33/3) := (4 + 4)/4 + ((4 × (4/4 + 4)4 ) − 44) := (44 × (44 + 4 + 4 + 4)) − 4/4 := 4 × ((4/4 + 4)4 − (4 + 4)) := 55 − ((555 + 5)/5 + 555) := 5 × 555 + ((5 − 55 )/(5 + 5)) := 55 − (((5 + 5)/5)5 + 55 /5) := ((66 − 6)/6) + (6 × (6 × 66 + 6 + 6)) := 6 + ((6 × (6 × 66 − 6) + 666/6) + 6) := 6 × 6 + (((6 + 6)/6)6 × ((6 + 6)/6 + 6 × 6)) := 7 + (7 × (7 × 7 × 7 + 7) + 7/7) := 7 + ((7 × (7 × 7 × 7 + 7) − 7/7) + 7) := 7 + (7 × (7 × 7 × 7 + 7) + (77/7)) := 8 + ((888/8 × (88 + 88)/8) + 8) := (8 × ((88 × (8 × 8 − 8))/(8 + 8))) − 8/8 := ((88 × (8 × 8 − 8)) + 8)/((8 + 8)/8) := 9/9 + (9 × 9 × (9 + 9) + 999) := ((9 + 9 + 9)/9) × (9 × (9 × 9 + 9) + (99/9)) := 99/9 + (9 × 9 × (9 + 9) + 999) Ï 2459 := ((1 + 1) × ((11 × (1 + 111)) − (1 + 1))) − 1 := 2 2+2 + (((22 × 222) + 2)/2) 3 3 Ï 2464 := (1 + 1) × (11 × (1 + 111)) Ï 2469 := 1 + ((1 + 1) × (1 + (1 + (11 × (1 + 111))))) := 22 × (222 + 2)/2 := 2 + ((22 × (222 + 2) + 2)/2 + 2) 3 3 := 3 + (((3 × 3 + 3)3 − 3/3) + 33+3 ) := 3/3 + ((3 × (3 × (3 + 3))) + 33) := (33 × ((3 × (33 − 3)) + 3)) − 3 − 3 := 4 + (4 × (4/4 + 4)4 ) − (44 + 4/4) := 44 × (44 + 4 + 4 + 4) := 4 + ((((4 − 4/4) + 4)4 ) + 4 × 4 × 4) := 55 − (555/5 + 555) := 5 − (((55 + 5 )/5) + 5 × 5) := 55 − (((55 + 5)/5 + 5 × 5) + 5) := 66/6 × ((6 × 6 × 6 + (6 + 6)/6) + 6) := 666/6 + (6 × 6 × 66 − (6 + 6 + 6)) := 7 + 7 × (7 × 7 × 7 + 7) + 7 := 7 + (7 × (7 × 7 × 7 + 7) + (77 + 7)/7) := 66/6 + (6 × (6 × 66 + 6 + 6)) := 7 + (7 × (7 × 7 × 7 + 7) + ((7 + 7)/7)) := 8 + ((88/8 + 8) × (8 × (8 + 8) + 8/8)) := (9 + 9)/9 + (9 × 9 × (9 + 9) + 999) Ï 2460 := (1 + 1) × ((11 × (1 + 111)) − (1 + 1)) 2 := (22 − 2) × ((22/2) + 2) 3 := 3 + ((3 × 3 + 3) + 3 3+3 ) 5 5 := 8 × ((88 × (8 × 8 − 8))/(8 + 8)) := 8/8 + (((88 × (8 × 8 − 8)) + 8)/((8 + 8)/8)) := ((9/9 + 9 + 9) + 9) × (99 − (99/9)) := 9 + (9 × (9 × (9 + 9) + 99) + 999/9) Ï 2465 := 1 + ((1 + 1) × (11 × (1 + 111))) := ((22 × (222 + 2)) + 2)/2 Ï 2470 := (1 + 1) × (1 + (1 + (1 + (11 × (1 + 111))))) := 2 + (22 × (222 + 2)/2 + 2 + 2) := (33/3)3 + (33 × (3 × 3 + 33)) 4 := (3 × 3 + 3/3) × (((33+3 + 3)/3) + 3) := 4 + ((4 × (4/4 + 4)4 ) − 44) := 4 × 4 × 4 + (((4 − 4/4) + 4) ) := (5 − 5/5) × (55 /5 − (5 + 5)) := 5 − (55 × ((55 + 5)/5)) := 55 × 55 − 555 := 6 + ((6 × (6 × 66 + 6 + 6)) + (66/6)) := (66 − 6/6) × ((6 + 6)/6 + 6 × 6) := 7 + ((7 × (7 × 7 × 7 + 7) + 7/7) + 7) := 77 + (7 × 7 × 7 × 7 − (7/7 + 7)) := 6 + ((6 × (6 × 66 + 6 + 6)) + 6) := ((77 − 7)/7) + 7 × (7 × 7 × 7 + 7) 5 8×8/(8+8) := ((88 × (8 × 8 − 8)) − 8)/((8 + 8)/8) := 8 × 8 + ((8 − 8/8) := 999/9 + 9 × (9 × (9 + 9) + 99) := 9 + ((9 × 9 × (9 + 9) − 9/9) + 999) Ï 2461 := ((1 + 1) × ((11 × (1 + 111)) − 1)) − 1 ) Ï 2466 := (1 + 1) × (1 + (11 × (1 + 111))) := 4 + ((((4 − 4/4) + 4)4 ) + (44 + 4)/4) := (88/8 + 8) × (8 × (8 + 8) + ((8 + 8)/8)) := (9/9 + 9) × ((((9 + 9)/9)9−9/9 ) − 9) Ï 2471 := 1 + ((1 + 1) × (1 + (1 + (1 + (11 × (1 + 111)))))) := 2 + (22 × (222 + 2)/2) := (2 × (2 + 2 + 2)2+2 ) − (22/2)2 := 3 + ((3 × (33 × (33 + 3))) + 33) := (33 × ((3 × (33 − 3)) + 3)) − (3/3 + 3) := 4 × 4 + ((((4 − 4/4) + 4)4 ) + 44) := (44 + 4)/4 + (((4 − 4/4) + 4)4 ) := 4 + ((4 × ((4/4 + 4)4 − (4 + 4))) − 4/4) := 5 + ((5 − 5/5) × ((55 − 55)/5)) := 5 + ((5 − (55 × (55 + 5)))/5) := 55 + (((5 − 55 )/5) − (5 × 5 + 5)) := 6 + (((6 × (6 × 66 + 6 + 6)) + 6/6) + 6) := 6 + (((6 × (6 × 66 + 6 + 6)) + 6) + 6) := 66 + ((6 × 6 + 6/6) × (66 − 6/6)) := 77/7 + 7 × (7 × 7 × 7 + 7) := 7 + ((7 × (7 × 7 × 7 + 7) + ((7 + 7)/7)) + 7) := 77 + (7 × 7 × 7 × 7 − 7) := (((22 × (222 + 2)) − 2)/2) − 2 := 3 + (((3 × 3 + 3)3 + 33+3 ) + 3/3) 5 8×8/(8+8) := 8/8 + (((88 × (8 × 8 − 8)) − 8)/((8 + 8)/8)) := 8/8 + (((8 − 8/8) := ((999 + 9)/9) + 9 × (9 × (9 + 9) + 99) := 9 + (9 × 9 × (9 + 9) + 999) Ï 2462 := (1 + 1) × ((11 × (1 + 111)) − 1) ) + 8 × 8) Ï 2467 := 1 + ((1 + 1) × (1 + (11 × (1 + 111)))) := ((8 + 8 + 8) × (888/8 − 8)) − 8/8 := ((9 × 9 − 9/9) × (((99 + 99)/9) + 9)) − 9 Ï 2472 := 11 + (((1 + 1) × ((11 × (1 + 111)) − 1)) − 1) := (22 × (222 + 2)/2) − 2 := 2 + (22 × (222 + 2) + 2)/2 := 2 × (2 × ((2 × (22 × (22+2 − 2))) + 2)) := 33 + ((3 × (33 × (33 + 3))) − 3/3) := 3 + (((3 × (33 × (33 + 3))) + 33) + 3/3) := (33 × ((3 × (33 − 3)) + 3)) − 3 := (44 + 4)/4 + ((((4 − 4/4) + 4)4 ) − 4) := (4 × ((4/4 + 4)4 − (4 + 4))) − 4/4 := 4 + (4 × ((4/4 + 4)4 − (4 + 4))) := 5 × 555 − (55 + 5)/(5 + 5) := 5 + (5 × 555 − (55 + 5)/(5 + 5)) := (5 − 5/5) × ((55 − 5 − 5)/5 − 5) := 6 + (((6 × (6 × 66 + 6 + 6)) + ((6 + 6)/6)) + 6) := 66 + ((6/6 + 6)6−(6+6)/6 ) := 66 + (6 × (6 × 66 + 6) − 6) := (77 + 7)/7 + 7 × (7 × 7 × 7 + 7) := 77 + (7 × 7 × 7 × 7 − (77/7)) := 7/7 + ((7 × 7 × 7 × 7 − 7) + 77) := (8 × ((88 × (8 × 8 − 8))/(8 + 8))) − (8 + 8)/8 := 8 + (((88/8 + 8) × (8 × (8 + 8) + 8/8)) + 8) := (8 + 8 + 8) × (888/8 − 8) := 9 + ((99/9) × (9 × (9 + 9 + 9) − (99/9 + 9))) := 9 + ((9 × 9 × (9 + 9) + 999) + 9/9) := (9 − 9/9) × ((999/9 + 99) + 99) 174 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2473 := 11 + ((1 + 1) × ((11 × (1 + 111)) − 1)) 2 2 Ï 2478 := 1 + (1 + (1 + (11 × (1 + ((1 + 1) × (1 + 111)))))) 2×(2+2) Ï 2483 := ((1 + 1) × ((11 × (1 + 1 + 111)) − 1)) − 1 := 22 × (222/2 + 2) − 2/2 − 2 := ((22/2 + 2) ) + ((2 × (22 + 2)) ) := 2222 + 2 := 3/3 + ((33 × ((3 × (33 − 3)) + 3)) − 3) := 3 + (33 × ((3 × (33 − 3)) + 3)) := (3 × (3 × 33 + 33+3 )) − 3/3 := (4 × ((4/4 + 4)4 − 4)) − 44/4 := 44 + 4 × 4444/(4 + 4) := (4 × ((4/4 + 4)4 − 4)) − 4/4 := 55 − ((55 + 5 + 5)/5 + 5 × 5) := 55 − (((55 + 55) + 55 )/5) := 55 − (((55 + 55 + 5)/5) + 5) := ((6 × 6 + 6/6) × (66 + 6/6)) − 6 := 66 + 6 × (6 × 66 + 6) := (6 × ((6 × 66 + 6 + 6) + 6)) − 6/6 := 77 + ((7 × 7 × 7 × 7 − 7) + ((7 + 7)/7)) := 77 + 7 × 7 × 7 × 7 := 7 + ((7 × 7 × 7 × 7 − ((7 + 7)/7)) + 77) := 8 + (((8 − 8/8)8×8/(8+8) ) + 8 × 8) := 8 + ((88/8 + 8) × (8 × (8 + 8) + ((8 + 8)/8))) := 8 + (88/8 × ((8 − 8/8 + 8)(8+8)/8 )) := 9 + (((9/9 + 9 + 9) + 9) × (99 − (99/9))) := (9 − ((9 + 9 + 9)/9)) × ((((9 + 9)/9)9 ) − 99) := ((9 + 9 + 9) × ((99/9) + 9 × 9)) − 9/9 Ï 2474 := (11 × (1 + ((1 + 1) × (1 + 111)))) − 1 Ï 2479 := 11 + ((1 + 1) × (1 + (1 + (11 × (1 + 111))))) Ï 2484 := (1 + 1) × ((11 × (1 + 1 + 111)) − 1) := 2/2 + (2222 + 22×(2+2) ) := 22 × (222/2 + 2) − 2 := (33 × ((3 × (33 − 3)) + 3)) − 3/3 := 3 + ((33 × ((3 × (33 − 3)) + 3)) + 3/3) := 3 × (3 × 33 + 33+3 ) := 44 + (4 × 4444/(4 + 4) − 4) := (4 × ((4/4 + 4)4 − 4)) − (4/4 + 4) := 4 × ((4/4 + 4)4 − 4) := 55 − ((55 + 5)/5 + 5 × 5) := 5 + (55 − ((55 + 5)/5 + 5 × 5)) := 55 − (((55 + 55 )/5) + 5) := 66 + ((6 × (6 × 66 + 6) − 6) + ((6 + 6)/6)) := (6 × 6 + 6/6) × (66 + 6/6) := 6 × ((6 × 66 + 6 + 6) + 6) := 7 + ((7 × 7 × 7 × 7 − (77/7)) + 77) := 7/7 + (7 × 7 × 7 × 7 + 77) := 7 + ((7 × 7 × 7 × 7 − 7/7) + 77) := (8 + 8)/8 + ((8 + 8 + 8) × (888/8 − 8)) := 8 + (((8 + 8 + 8) × (888/8 − 8)) − 8/8) := 2222 + (2 2×(2+2) − (2 + 2)) := (99 × (((9 − ((9 + 9)/9)) + 9) + 9)) − 9/9 Ï 2475 := 11 × (1 + ((1 + 1) × (1 + 111))) := 22/2 × ((222 + 2/2) + 2) 9−9/9 := 9 + ((9/9 + 9) × ((((9 + 9)/9) ) − 9)) Ï 2480 := (1 + 1) × ((11 − 1) × (1 + (1 + (1 + 111+1 )))) := 2 + (2222 + 2 2×(2+2) := 8 + ((((88 × (8 × 8 − 8)) + 8)/((8 + 8)/8)) + 8) := (9 + 9 + 9) × ((99/9) + 9 × 9) Ï 2485 := ((1 + 1) × (11 × (1 + 1 + 111))) − 1 := 22 × (222/2 + 2) − 2/2 ) := 33 × ((3 × (3 − 3)) + 3) := ((3 + 3/3) + 3) × (3 × 3 − 3/3) := 3/3 + (3 × (3 × 33 + 33+3 )) := (44 + 4/4) × (44/4 + 44) := 4 × (444 + 4 × 44) := 4/4 + (4 × ((4/4 + 4)4 − 4)) := 55 × (55 − 5 − 5) 3 3 3 := 5 + (55 × (55 − 5 − 5)) := 5 + ((55 × (55 − 5 − 5)) + 5) := 666/6 + (6 × 6 × 66 − (6 + 6)) := 66 + (6 × (6 × 66 + 6) + ((6 + 6)/6)) := 6 + ((6 × 6 + 6/6) × (66 + 6/6)) := 7 + ((7 × (7 × 7 × 7 + 7) + (77/7)) + 7) := 77 + (7 × 7 × 7 × 7 + ((7 + 7)/7)) := 7 + (7 × 7 × 7 × 7 + 77) := 8 + ((8 + 8 + 8) × (888/8 − 8)) := ((8 + 8 + 8) × (88 + 8 + 8)) − 88/8 := (9 × 9 − 9/9) × (((99 + 99)/9) + 9) := 9/9 + ((9 + 9 + 9) × ((99/9) + 9 × 9)) := 88/8 × ((8 − 8/8 + 8) (8+8)/8 ) := 99 × (((9 − ((9 + 9)/9)) + 9) + 9) Ï 2476 := 1 + (11 × (1 + ((1 + 1) × (1 + 111)))) := 2222 + (2 2×(2+2) − 2) Ï 2481 := (1 + 1 + 1) × ((1 + 1)11 − 11 × 111) := (2 × (2 + 2 + 2)2+2 ) − 222/2 3+3 Ï 2486 := (1 + 1) × (11 × (1 + 1 + 111)) := 22 × (222/2 + 2) := 3 + ((3 × (3 × 33 + 33+3 )) − 3/3) := 3/3 + (33 × ((3 × (33 − 3)) + 3)) := (3 × (3 × 33 + 3 )) − 3 := 44 + (4/4 + 4) × 444 := 4/4 + (4 × (444 + 4 × 44)) := 55 + (((5 − 55 )/5) − 5 × 5) := 5 + ((((5 − 5 )/5) − 5 × 5) + 5 ) := 55 + (((5 − 55 )/5) − (5 + 5 + 5)) := ((6 + 6)/6)6 + 6 × (6 × 66 + 6) := 666/6 + (6 × 6 × 66 − 6) := 6 × 6 × 66 + (666 − 6)/6 := 77 + (7 × 7 × 7 × 7 − ((7 + 7)/7)) := 7 × (7 × 7 − 7) + ((7 + 7 + 7)/7) 5 := (4 + 4)/4 + (4 × ((4/4 + 4)4 − 4)) 5 7 8×8/(8+8) := 8 + (((88 × (8 × 8 − 8)) + 8)/((8 + 8)/8)) := 88 + (((8 − 8/8) := 9/9 + (99 × (((9 − ((9 + 9)/9)) + 9) + 9)) := 9 × 9 + ((99/9 + 9) × (999/9 + 9)) Ï 2477 := 1 + (1 + (11 × (1 + ((1 + 1) × (1 + 111))))) := 2 + (22/2 × ((222 + 2/2) + 2)) ) − 8) Ï 2482 := (1 + 1) × ((11 × (1 + 1 + 111)) − (1 + 1)) 2 := (2 × (22 + 2 + 2)) − 222 := 7 + ((7 × 7 × 7 × 7 + 77) + 7/7) := (8 − 88)/8 + ((8 + 8 + 8) × (88 + 8 + 8)) := (9 + 9)/9 + ((9 + 9 + 9) × ((99/9) + 9 × 9)) Ï 2487 := 1 + ((1 + 1) × (11 × (1 + 1 + 111))) := 2/2 + 22 × (222/2 + 2) 3 := 3 + ((33 × ((3 × (3 − 3)) + 3)) − 3/3) := (3/3 + 33) × (((3 + 3) + 3)/3) := 3 + (3 × (3 × 33 + 33+3 )) := 4 + ((4 × ((4/4 + 4)4 − 4)) − 44/4) := (4 − 4/4)4 + (((4 − 4/4) + 4)4 ) := 4 + ((4 × ((4/4 + 4)4 − 4)) − 4/4) := 55 + ((((5 − 55 ) + 5)/5) − 5 × 5) := 5 + (((((5 − 55 ) + 5)/5) − 5 × 5) + 55 ) := 55 − (((55 + 55 + 5) + 5)/5) := 66 + (6 × (6 × 66 + 6) − 6/6) := 6 + (6 × (6 × 66 + 6) + ((6 + 6)/6)6 ) := 666/6 + 6 × 6 × 66 := 77 + (7 × 7 × 7 × 7 − 7/7) := 77 + ((7 × 7 × 7 × 7 − 7) + (77/7)) := 7 + ((7 × 7 × 7 × 7 + ((7 + 7)/7)) + 77) := 8 × 8 + ((88/8 + 8) × (8 × (8 + 8) − 8/8)) := 8 × 88 + (((8 + 8)/8) × (888 + 8/8)) 3 := 9 + ((9 × 9 × (9 + 9) + 999) + (99/9)) 9 := ((9 + 9)/9) × ((((9 + 9)/9) ) + 9 × 9 × 9) 175 := ((8 + 8 + 8) × (88 + 8 + 8)) − (8/8 + 8) := ((9 + 9 + 9)/9) × ((9 × 9 × 9 + 99) + 9/9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2488 := (1 + 1) × (1 + (11 × (1 + 1 + 111))) := 2 + 22 × (222/2 + 2) Ï 2493 := 1 + ((1 + 1)11 + ((1 + 1) × (1 + 1) × 111)) := 2/2 + (2 3+3 22/2 + 2 × 222) Ï 2498 := 1 + (11 × (1 + ((1 + 1) × (1 + 1 + 111)))) := (2 × (22 + 2) + 2)2 − 2 := 3 × ((3 × 33 + 33+3 ) + 3) := (3 × (3 + 3))3 − (3333 + 3/3) := 4 + (4 × ((4/4 + 4) − 4)) := 4 + ((4 × (4/4 + 4)4 ) − 44/4) := (4 × (4/4 + 4)4 ) − (4 + 4)/4 := 55 − ((55 + 55 + 5)/5) := 55 − ((55 + 5 + 5)/5 + 5) := 55 − (55 + 5 + 5)/5 := 6 × 6 × 66 + (666 + 6)/6 := 6 + (666/6 + 6 × 6 × 66) := 6 × 6 × 66 + ((666 + 66)/6) := 3 + ((3 × (3 × 33 + 3 )) + 3/3) 4 := (7 × (7 × 7 × 7 + 7 + 7)) − 77/7 := ((7/7 + 7 × 7) := ((8 + 8 + 8) × (88 + 8 + 8)) − 8 := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) − (88/8)) := (8 + 8)/8 + ((8 + 8 + 8) × (88 + 8 + 8)) := 9 × (9 × (9 + 9) − 9) + 9999/9 := 9 + ((9 + 9 + 9) × ((99/9) + 9 × 9)) := 9 + (((9 × 9 − 9/9) × (((99 + 99)/9) + 9)) + 9) Ï 2489 := 1 + ((1 + 1) × (1 + (11 × (1 + 1 + 111)))) (7+7)/7 )−7 Ï 2494 := (1 + 1)11 + ((1 + 1) × (1 + (1 + 1) × 111)) := (7 × (7 × 7 × 7 + 7 + 7)) − 7/7 Ï 2499 := (((11 − 1)1+1 /(1 + 1))1+1 ) − 1 := 222/2 + ((22 − 2/2)2 ) := 2 + (222/2 + 2 × 222) := (2 × (22 + 2) + 2)2 − 2/2 := (((33 + 3) × ((3 + 3)3 + 33)) − 3)/3 := 3/3 + (3 × ((3 × 33 + 33+3 ) + 3)) := (3 × (3 + 3))3 − 3333 := (4 × (4/4 + 4)4 ) − 44/4 := (4 × (4/4 + 4)4 ) − ((4 + 4)/4 + 4) := (4 × (4/4 + 4)4 ) − 4/4 := 55 − ((55 + 55 )/5) := 55 − ((55 + 5)/5 + 5) := 55 − (55 + 5)/5 := 6 + ((6 × ((6 × 66 + 6 + 6) + 6)) − 6/6) := 6 + ((666 + 6)/6 + 6 × 6 × 66) := 6 + ((666/6 + 6 × 6 × 66) + 6) := 7/7 + (((7/7 + 7 × 7)(7+7)/7 ) − 7) := 7 × (7 × 7 × 7 + 7 + 7) := 77 + (7 × 7 × 7 × 7 + (77/7)) 8×8/(8+8) := 88 + ((8 − 8/8) ) := ((8 + 8 + 8) × (88 + 8 + 8)) − (8 + 8)/8 := 9 + ((9 × 9 − 9/9) × (((99 + 99)/9) + 9)) Ï 2490 := (1 + 1) × (1 + (1 + (11 × (1 + 1 + 111)))) := 2 + (22 × (222/2 + 2) + 2) := 3 + ((3 × (3 × 33 + 33+3 )) + 3) := (4 − 44)/4 + (4 × (4/4 + 4)4 ) := 9 + (((9 + 9 + 9) × ((99/9) + 9 × 9)) + 9/9) Ï 2495 := 11 + ((1 + 1) × ((11 × (1 + 1 + 111)) − 1)) := (2 × (22 + 2) + 2)2 − (2/2 + 2 + 2) := 33/3 + (3 × (3 × 33 + 33+3 )) := (4 × (4/4 + 4)4 ) − (4/4 + 4) := 55 − (55 /5 + 5 + 5) := 6 + (6 × ((6 × 66 + 6 + 6) + 6)) := 55 − (55 /5 + 5) := 66/6 + (6 × ((6 × 66 + 6 + 6) + 6)) := 88/8 + (((8 + 8 + 8) × (88 + 8 + 8)) − 8) := 99 + ((99/9 + 9) × (999/9 + 9)) Ï 2500 := ((11 − 1)1+1 /(1 + 1))1+1 := (2 × (22 + 2) + 2)2 := 3 + (33/3 × ((3 + 3)3 + 33/3)) := 4 × (4/4 + 4)4 := 55 − 55 /5 := ((6 + 6)/6 + 6 × 6 + 6 + 6)(6+6)/6 := (7/7 + 7 × 7)(7+7)/7 := 8/8 + (((8 − 8/8)8×8/(8+8) ) + 88) := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) − (77/7)) := ((8 + 8 + 8) × (88 + 8 + 8)) − 8/8 := ((((8 + 8)/8) − (8 + 8)) + 8 × 8)(8+8)/8 := (((9 + 9)/9) + 9 × 9) × ((((99 + 9)/9) + 9) + 9) := 99/9 + ((9 + 9 + 9) × ((99/9) + 9 × 9)) := ((9 × 99 + 9)/(9 + 9))(9+9)/9 := 77 + (7 × 7 × 7 × 7 + (77 + 7)/7) Ï 2491 := 1 + ((1 + 1) × (1 + (1 + (11 × (1 + 1 + 111))))) := 2 + (((22 − 2/2)2 ) + 222/2 ) Ï 2496 := (11 × (1 + ((1 + 1) × (1 + 1 + 111)))) − 1 Ï 2501 := 1 + (((11 − 1)1+1 /(1 + 1))1+1 ) := (2 × (22 + 2) + 2)2 − 2 − 2 := 2/2 + (2 × (22 + 2) + 2)2 := (33 − 3/3) × (3 × 33 − 3) := ((33/3 + 3)3 ) − 3 × 3 × 33 := (4 × (4/4 + 4)4 ) − 4 := 4/4 + (4 × (4/4 + 4)4 ) := 5 + (((5 − 5 )/5) − (5 + 5)) := 55 + (((5 − 55 )/5) − 5) := 55 + ((5 − 55 )/5) := 6 + (((6 × 6 + 6/6) × (66 + 6/6)) + 6) := 6 + ((6 × ((6 × 66 + 6 + 6) + 6)) + 6) := (6 × 6 − 6/6 + 6) × (66 − 6 + 6/6) := (7 × (7 × 7 × 7 + 7 + 7)) − (7/7 + 7) := 7 + ((7 × 7 × 7 × 7 + (77/7)) + 77) := 7/7 + ((7/7 + 7 × 7)(7+7)/7 ) := 88 + ((8/8 + 88) × (88/8 + 8 + 8)) := (8 + 8 + 8) × (88 + 8 + 8) := 88 + ((88/8 + 8) × (8 × (8 + 8) − 8/8)) := (9 − 9/9) × ((9 + 9) × (9 + 9) − ((99 + 9)/9)) := 9 × 9 × 9 + ((9 + 9) × 99 − (9/9 + 9)) 3 3 := (((3 + 3) × ((3 + 3) + 33)) + 3)/3 4 := 444 + (4 × (4 + 4) − 4/4) 5 5 := (((9 × 99 + 9)/(9 + 9)) (9+9)/9 )−9 Ï 2492 := (1 + 1)11 + ((1 + 1) × (1 + 1) × 111) Ï 2497 := 11 × (1 + ((1 + 1) × (1 + 1 + 111))) Ï 2502 := 1 + (1 + (((11 − 1)1+1 /(1 + 1))1+1 )) := 222/2 + 2 × 222 := (2 × (22 + 2) + 2)2 − 2/2 − 2 := 2 + (2 × (22 + 2) + 2)2 := (33 + 3/3) × ((3 × (33 + 3)) − 3/3) := 33/3 × ((3 + 3)3 + 33/3) := 3 + ((3 × (3 + 3))3 − 3333) := 444 + 44 × (4 + 4) := 4/4 + ((4 × (4/4 + 4)4 ) − 4) := (4 + 4)/4 + (4 × (4/4 + 4)4 ) := (5 − 5/5) × (55 − 5 − 5)/5 := 55 + ((((5 − 55 ) + 5)/5) − 5) := 55 + (((5 − 55 ) + 5)/5) := 6 + (((666 − 6)/6) + 6 × 6 × 66) := 66/6 × (6 × 6 × 6 + 66/6) := (66 × ((6 + 6)/6 + 6 × 6)) − 6 := (7 × (7 × 7 × 7 + 7 + 7)) − 7 := (7 × (7 × 7 × 7 + 7 + 7)) − (7 + 7)/7 := (7 + 7)/7 + ((7/7 + 7 × 7)(7+7)/7 ) := (8 − 8/8) × ((8 × 88 + 8)/((8 + 8)/8)) := 8/8 + ((8 + 8 + 8) × (88 + 8 + 8)) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) − ((8 + 8)/8)) := 9 + (9 × (9 × (9 + 9) − 9) + 9999/9) := 9 × 9 × 9 + ((9 + 9) × 99 − 9) 9 := (((9 + 9)/9) ) + (99 × (99/9 + 9)) 176 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2503 := ((11 × (1 + 1)11 ) − 1)/(11 − 1 − 1) Ï 2508 := (1 + 1) × (11 × (1 + 1 + 1 + 111)) := 2 + (2 × (22 + 2) + 2)2 + 2/2 := 2 + ((2 × (22 + 2) + 2)2 + 22/2) := 22 × ((222 + 2)/2 + 2) 3 := 3 + ((33/3 × ((3 + 3)3 + 33/3)) + 3) Ï 2513 := 1 + (1 + (11 + (((11 − 1)1+1 /(1 + 1))1+1 ))) := 3 + ((33 × ((3 × (33 + 3)) + 3)) − 3/3) := 33 × ((((3 + 3) + 3)/3) + 3) 4 := 4 + ((4 × (4/4 + 4)4 ) − 4/4) := 4 + ((4 × (4/4 + 4) ) + 4) := 4/4 + ((4 × ((4/4 + 4)4 + 4)) − 4) := 5 + (55 − (55 + 5 + 5)/5) := (5 − 5/5) × (55 + 5 + 5)/5 := 5 + ((5 − 5/5) × (55 + 5 + 5)/5) := 6 + 66/6 × (6 × 6 × 6 + 66/6) := 66 × ((6 + 6)/6 + 6 × 6) := (6/6 + 6) × (6 × (66 − 6) − 6/6) := 77/7 + ((7 × (7 × 7 × 7 + 7 + 7)) − 7) := 7 + (((7/7 + 7 × 7)(7+7)/7 ) + 7/7) := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) + 7) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) − 8/8) := (88/((8 + 8)/8)) × ((8/8 − 8) + 8 × 8) := 8 + ((((8 + 8 + 8) × (88 + 8 + 8)) + 8/8) + 8) := 9/9 + (((9 + 9) × 99 − 9) + 9 × 9 × 9) := 9 × 9 × 9 + ((9 + 9) × 99 − ((9 + 9 + 9)/9)) := 9 × 9 × 9 + ((9 + 9) × 99 + ((9 + 9)/9)) Ï 2504 := 1 + (((11 × (1 + 1)11 ) − 1)/(11 − 1 − 1)) Ï 2509 := 1 + ((1 + 1) × (11 × (1 + 1 + 1 + 111))) Ï 2514 := 11 + (((11 × (1 + 1)11 ) − 1)/(11 − 1 − 1)) := 2 + (2 × (22 + 2) + 2)2 + 2 := 222 + (2 × 22 + 2/2)2 := 2 + ((2 × 22)2 + ((22 + 2)2 )) := 3 + (((33/3 + 3)3 ) − 3 × 3 × 33 ) := 3/3 + (33 × ((((3 + 3)3 + 3)/3) + 3)) := 3 + (33 × ((3 × (33 + 3)) + 3)) := 4 + (4 × (4/4 + 4)4 ) := 4 + (((4 × (4/4 + 4)4 ) + 4/4) + 4) := (4 × ((4/4 + 4)4 + 4)) − (4 + 4)/4 := 5 + (55 − (55 + 5)/5) := 5 + ((55 − (55 + 5)/5) + 5) := 5 + (((55 − (55 + 5)/5) + 5) + 5) := 6 × 6 × 66 + (((6 + 6)/6)6/6+6) := 6/6 + (66 × ((6 + 6)/6 + 6 × 6)) := ((6 + 6) × (6 × 6 × 6 − 6)) − 6 := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) − ((7 + 7)/7)) := ((77 − 7)/7) + (7 × (7 × 7 × 7 + 7 + 7)) := 7 + (((7/7 + 7 × 7)(7+7)/7 ) + 7) := 8 + ((8 + 8 + 8) × (88 + 8 + 8)) := 88 + (((8 + 8) × (8 × 8 + 88)) − (88/8)) := 8 + ((((8 + 8 + 8) × (88 + 8 + 8)) + ((8 + 8)/8)) + 8) := (9 − 9/9) × ((9 + 9) × (9 + 9) − (99/9)) Ï 2505 := ((1 + (11 + 11)) × (111 − 1 − 1)) − 1 − 1 := 9 + (((9 × 99 + 9)/(9 + 9)) (9+9)/9 ) Ï 2510 := (1 + 1) × (1 + (11 × (1 + 1 + 1 + 111))) := 9 × 9 × 9 + ((9 + 9) × 99 + ((9 + 9 + 9)/9)) Ï 2515 := 1 + (11 + (((11 × (1 + 1)11 ) − 1)/(11 − 1 − 1))) := 2 + (2 × (22 + 2) + 2)2 + 2/2 + 2 := 2 + 22 × ((222 + 2)/2 + 2) := 2 + (((2 × (22 + 2) + 2)2 + 22/2) + 2) := (33 × ((3 × (33 + 3)) + 3)) − 3 − 3 := (33 × ((3 × (33 + 3)) + 3)) − 3/3 := 3 + ((33 × ((3 × (33 + 3)) + 3)) + 3/3) := 4 + ((4 × (4/4 + 4)4 ) + 4/4) := (44 − 4)/4 + (4 × (4/4 + 4)4 ) := (4 × ((4/4 + 4)4 + 4)) − 4/4 := 5 + (55 − 55 /5) := 5 + ((55 − 55 /5) + 5) := 55 − (555 + 55) := 6 + (((666/6 + 6 × 6 × 66) + 6) + 6) := (6 + 6)/6 + (66 × ((6 + 6)/6 + 6 × 6)) := 6/6 + (((6 + 6) × (6 × 6 × 6 − 6)) − 6) := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) − 7/7) := 77/7 + (7 × (7 × 7 × 7 + 7 + 7)) := 7 × 7 × 7 × 7 + (((7 + 7)/7)7 − (7 + 7)) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) + 8/8) := 88 × (8 + 8) + ((8888 − 8)/8 − 8) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) + (88/8)) := 9 + ((9 − 9/9) × ((9 + 9) × (9 + 9) − ((99 + 9)/9))) := 9 × 9 × 9 + ((9 + 9) × 99 − 9/9) := ((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9)9 ) − 9) Ï 2506 := (1 + 1) × ((11 × (1 + 1 + 1 + 111)) − 1) := 2 + (2 × (22 + 2) + 2)2 + 2 + 2 Ï 2511 := 11 + (((11 − 1)1+1 /(1 + 1))1+1 ) := 22/2 + (2 × (22 + 2) + 2)2 3 3 := 3 × 3 + (33/3 × ((3 + 3) + 33/3)) 3 Ï 2516 := (1 + 1) × (11 × 111 + (111/(1 + 1 + 1))) := 22+2 + (2 × (22 + 2) + 2)2 := 3 × ((3 × (3 + 3)) + 3) := 333 + (3 × 33+3 − (3/3 + 3)) := 44/4 + (4 × (4/4 + 4)4 ) := 4 × ((4/4 + 4)4 + 4) := 5 + (((5 − 5 )/5) + 5 ) := 55 + ((55 − 55 )/5) := 5 + (((55 − 55 )/5) + 55 ) := 66 + (6 × 6 × 66 + ((6 + 6)/6)6 ) := (66 × 66 + 666)/((6 + 6)/6) := (6 × 6 + 6/6) × (((6 + 6)/6) + 66) := 7 + (7 × (7 × 7 × 7 + 7 + 7)) := 7 × 7 × 7 × 7 + (777 − 7)/7 := 77 + (7 × (7 × 7 × 7 + 7) − (77/7)) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) + ((8 + 8)/8)) := 88 × (8 + 8) + (8888/8 − 8) := ((8 × 8 × (88 − 8)) − 88)/((8 + 8)/8) := 9 × ((99 + 99) + 9 × 9) := 9 + ((9/9 + 99 + 9) × ((99 + 99 + 9)/9)) 4 := 4 + ((4 × (4/4 + 4) ) + (4 + 4)/4) 5 5 9 := (((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9) ) − 9)) − 9 Ï 2507 := (1 + (11 + 11)) × (111 − 1 − 1) Ï 2512 := 1 + (11 + (((11 − 1)1+1 /(1 + 1))1+1 )) 2 2 Ï 2517 := 11 + ((1 + 1) × ((11 × (1 + 1 + 1 + 111)) − 1)) := (22 + 2/2) × (222/2 − 2) := (2 × 22) + ((22 + 2) ) := 2/2 + ((2 × (22 + 2) + 2)2 + 22+2 ) := (33 × ((3 × (33 + 3)) + 3)) − (3/3 + 3) := 3/3 + (33 × ((3 × (33 + 3)) + 3)) := 333 + (3 × 33+3 − 3) := 4 + (((4 × (4/4 + 4)4 ) − 4/4) + 4) := (4 × ((4/4 + 4)4 + 4)) − 4 := 4/4 + (4 × ((4/4 + 4)4 + 4)) := 5 + ((((5 − 55 ) + 5)/5) + 55 ) := 55 + (((55 − 55 ) + 5)/5) := 5 + ((((55 − 55 ) + 5)/5) + 55 ) := (66 × ((6 + 6)/6 + 6 × 6)) − 6/6 6 := ((6 + 6)/6) + (6 × (6 × 66 + 6 + 6)) := 666/6 + (6 × (6 × 66 + 6) − 6) := 777/7 + 7 × 7 × 7 × 7 := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) + (77/7)) := 88/8 + ((8 + 8 + 8) × (88 + 8 + 8)) := 8 + (((8 + 8 + 8) × (88 + 8 + 8)) + 8) := 88 × (8 + 8) + ((8888 − (8 + 8))/8) := (9/9 + 99 + 9) × ((99 + 99 + 9)/9) := 9/9 + ((9 + 9) × 99 + 9 × 9 × 9) := 9 + (((9 + 9) × 99 − ((9 + 9 + 9)/9)) + 9 × 9 × 9) := 7 + ((7/7 + 7 × 7) (7+7)/7 ) 177 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2518 := 11 + ((1 + (11 + 11)) × (111 − 1 − 1)) 2 := 2 + (((2 × (22 + 2))2 ) + 222) := 3/3 + ((3 × 33+3 − 3) + 333) := 3 + (3 × 33+3 + 333) := ((33/3 + 3)3 ) − (3 + 3)3 := (4 + 4)/4 + (4 × ((4/4 + 4)4 + 4)) := 4 + (((44 − 4) × (44 − 4) − 4)/4) := 4 × ((4 × (4 × (44 − 4))) − (4 + 4)) := 55 − (((55 × 55 + 5) + 5)/5) := 5 × 5 + (55 − (55 + 5 + 5)/5) := (5 − 5/5) × ((55 + 5 + 5)/5 + 5) := ((6 + 6) × (6 × 6 × 6 − 6)) − (6 + 6)/6 := 666/6 + 6 × (6 × 66 + 6) := (6 × (6 × (66 + 6))) − ((6 + 6)/6)6 := 7 + ((777 − 7)/7 + 7 × 7 × 7 × 7) := 7 × 7 × 7 + (((7 + 7 + 7)/7)7 − 7) := 7/7 + (7 × (7 × 7 × 7 + 7) + 77) := 88 × (8 + 8) + (8888 − 8)/8 := (8/8 − 88) × (8 − 888/(8 + 8 + 8)) := 8 + (((8 + 8) × (8 × 8 + 88)) + 88) := 9 × 9 + (999/9 × ((99 + 99)/9)) := 99 + ((9 × 9 + 9) × (9 + 9 + 9) − 9/9) := 9 + ((((9 × 99 + 9)/(9 + 9)) 2 Ï 2528 := ((111 − 1) × (1 + (11 + 11))) − 1 − 1 := 22 + ((2 × (22 + 2) + 2) + 2/2) := 2 + ((2 × (22 + 2) + 2) + 2 2+2 Ï 2523 := (1 + 1 + 1) × ((((11 − 1) × (1 + 1 + 1)) − 1)1+1 ) ) (9+9)/9 ) + 9) Ï 2519 := 11 × (1 + ((1 + 1) × (1 + 1 + 1 + 111))) Ï 2524 := 1 + ((1 + 1 + 1) × ((((11 − 1) × (1 + 1 + 1)) − 1)1+1 )) Ï 2529 := ((111 − 1) × (1 + (11 + 11))) − 1 := 22/2 × (((222 − 22)/2) − 2) := 2 + ((2 × (22 + 2) + 2)2 + 22) := 222 + 222/2 − 2/2 − 2 := 333 + (3 × 33+3 − 3/3) := 3 + ((3 × 33+3 + 333) + 3/3) := 3 × ((33 × (33 + 3)) + 33) := ((44 − 4) × (44 − 4) − 4)/4 := 4 + ((4 × ((4/4 + 4)4 + 4)) + 4) := 4 × 4 × (4 + 4) + (((4 − 4/4) + 4)4 ) := 55 − ((55 × 55 + 5)/5) := 5 × 5 + (55 − (55 + 5)/5) := 5 + ((5 × 5 − (55 + 5)/5) + 55 ) := ((6 + 6) × (6 × 6 × 6 − 6)) − 6/6 := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) − ((6 + 6)/6)) := 6 + (6 × (6 × 66 + 6) + 666/6) := 7 + (777/7 + 7 × 7 × 7 × 7) := (((7 + 7)/7 + 7 × 7)(7+7)/7 ) − 77 := 7 × 7 × 7 × 7 + ((7 + 7)/7)7 := 88 × (8 + 8) + 8888/8 := ((8 × (8 × (88 − 8) − 8)) − 8)/((8 + 8)/8) := 8 × (8 + 8) + ((8 − 8/8)8×8/(8+8) ) := 9 + (((9 + 9) × 99 − 9/9) + 9 × 9 × 9) := 9 + (((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9)9 ) − 9)) := 99 + (9 × 9 + 9) × (9 + 9 + 9) Ï 2520 := (11 + (11 − 1)) × (111+1 − 1) 2 := 22 + ((2 × (22 + 2) + 2) − 2) Ï 2525 := (1 + ((1 + 1) × (1 + 11))) × (1 + (11 − 1)1+1 ) Ï 2530 := (111 − 1) × (1 + (11 + 11)) := 222 + (((2 × (22 + 2))2 ) − 2/2) := 22 × (222/2 + 2 + 2) := ((33/3 + 3)3 ) − ((3 + 3)3 + 3) := 333 + (((3 × 3 + 3/3) + 3)3 ) := 4 + (4 × ((4/4 + 4)4 + 4)) := 4 + (((44 − 4) × (44 − 4) + 4)/4) := (44 − 4)/4 × ((4/4 − 4) + 44 ) := 55 − (55 × (55/5)) := 5 × ((5 × 5 × (5 × 5 − 5)) + 5) := 5 + ((5 × (5 − 5 × 5 × 5)) + 55 ) := (6 + 6) × (6 × 6 × 6 − 6) := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) − 6/6) := ((66 − 6)/6) + ((6 + 6) × (6 × 6 × 6 − 6)) := 77 + (7 × (7 × 7 × 7 + 7) − 7) := 77 + (7 × (7 × 7 × 7 + 7) − ((7 + 7)/7)) := 7 × 7 × 7 + ((7 + 7 + 7)/7)7 := 88 + ((8 + 8) × (8 × 8 + 88)) := ((8 − 88/8) + 8) × ((8 × 8 × 8 − 8) + 8/8) := ((8 − 8/8 + 8) + 8) × (888 − 8)/8 := ((9 + 9)/9 + 99) × (((9 − ((9 + 9)/9)) + 9) + 9) := 9/9 + ((9 × 9 + 9) × (9 + 9 + 9) + 99) := 333 + 3 × 3 3+3 := 9 + ((9 + 9) × 99 + 9 × 9 × 9) Ï 2521 := 1 + ((11 + (11 − 1)) × (111+1 − 1)) 2 Ï 2526 := 1 + ((1 + ((1 + 1) × (1 + 11))) × (1 + (11 − 1)1+1 )) Ï 2531 := 1 + ((111 − 1) × (1 + (11 + 11))) := 222 + ((2 × (22 + 2))2 ) := 222 + (222/2 − 2/2) := 3 + ((3 × 33+3 + 333) + 3) := 3 + (((33/3 + 3)3 ) − (3 + 3)3 ) := 4 + ((((44 − 4) × (44 − 4) + 4) + 4)/4) := (4 × (((4/4 + 4)4 + 4) + 4)) − 4/4 := 5 + ((5 − 55 × 55)/5) := 5 × 5 + (((5 − 55 )/5) + 55 ) := 5 + ((((5 − 55 )/5) + 5 × 5) + 55 ) := 6/6 + ((6 + 6) × (6 × 6 × 6 − 6)) := 6 + ((6 + 6) × (6 × 6 × 6 − 6)) := 66/6 + ((6 + 6) × (6 × 6 × 6 − 6)) := 7 + ((((7/7 + 7 × 7)(7+7)/7 ) + 7) + 7) := 77 + (7 × (7 × 7 × 7 + 7) − 7/7) := 7/7 + (((7 + 7 + 7)/7)7 + 7 × 7 × 7) := 8/8 + (((8 + 8) × (8 × 8 + 88)) + 88) := 8 + ((8888 − 8)/8 + 88 × (8 + 8)) := 88 + (((8 + 8) × (8 × 8 + 88)) + (88/8)) := 9 + (((9 + 9) × 99 + 9 × 9 × 9) + 9/9) := 99 + (((9 + 9 + 9)/9) × (9 × (9 × 9 + 9) − 9/9)) := 9 + (((9 + 9) × 99 + (99/9)) + 9 × 9 × 9) := 22 + ((2 × (22 + 2) + 2) − 2/2) := 3/3 + (3 × 3 3+3 + 333) 4 := ((44 − 4) × (4 − 4) + 4)/4 5 Ï 2522 := 1 + (1 + ((11 + (11 − 1)) × (111+1 − 1))) 2 Ï 2527 := (1 + (11 × (1 + 11))) × (((1 + 1) × (11 − 1)) − 1) 2 Ï 2532 := (1 + 11) × ((1 + 1) × 111 − 11) := 2/2 + (((2 × (22 + 2)) ) + 222) := 222 + 222/2 := 3 + ((3 × 33+3 − 3/3) + 333) := 333 + ((((3 × 3 + 3/3) + 3)3 ) − 3) := 3 + ((3 × (33+3 + 3)) + 333) := (((44 − 4) × (44 − 4) + 4) + 4)/4 := 44/4 + (4 × ((4/4 + 4)4 + 4)) := 4 × (((4/4 + 4)4 + 4) + 4) := 5 + (((5 − 55 × 55) + 5)/5) := 5 × 5 + ((((5 − 55 ) + 5)/5) + 55 ) := 55 + (((5 + 5)/5)5 − 55 /5) := (6 + 6)/6 + ((6 + 6) × (6 × 6 × 6 − 6)) := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) + 6/6) := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) + 6) := 7 × 7 × 7 × 7 + (((7 + 7)/7) − 7) := 77 + 7 × (7 × 7 × 7 + 7) := 7 + ((7 × (7 × 7 × 7 + 7) − ((7 + 7)/7)) + 77) := 88 + (((8 + 8) × (8 × 8 + 88)) + ((8 + 8)/8)) := 8 + (8888/8 + 88 × (8 + 8)) := ((8 × (8 × (88 − 8) − 8)) + 8)/((8 + 8)/8) := 9 × 9 × 9 + ((9 + 9) × 99 + (99/9)) := 99 + ((9 × 9 + 9) × (9 + 9 + 9) − ((9 + 9)/9)) := 999/9 + ((9 × 9 + 9) × (9 + 9 + 9) − 9) := 22 + (2 × (22 + 2) + 2) 5 7 178 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2533 := 1 + ((1 + 11) × ((1 + 1) × 111 − 11)) := 2/2 + (2 22/2 Ï 2538 := (11 × (11 × (11 + (11 − 1)))) − 1 − 1 − 1 2 + 22 ) := 2 + (((2 22/2 Ï 2543 := 1 + (1 + (11 × (11 × (11 + (11 − 1))))) := 2 + ((22/2)2 × (22 − 2/2)) 2 + 22 ) + 2) + 2) := 3 + ((((3 × 3 + 3/3) + 3)3 ) + 333) := (3 × 33 × 33) − 33+3 := ((33/3 + 3)3 ) − (33 × (3 + 3) + 3) := 4/4 + (4 × (((4/4 + 4)4 + 4) + 4)) := ((44 × (4 × 4 + 4)) − 44)/((4 + 4)/4) := 44 + ((4 × (4/4 + 4)4 ) − 4/4) := 5 + ((5 − 5/5) × ((55 + 5 + 5)/5 + 5)) := 55 − (((5 + 5)/5)5 + 555) := 5 + (55 − (((5 + 5)/5)5 + 555)) := 6 + ((((6 + 6) × (6 × 6 × 6 − 6)) + 6/6) + 6) := 6 + ((((6 + 6) × (6 × 6 × 6 − 6)) + 6) + 6) := (6 × ((6 × (66 + 6)) − 6)) − (6/6 + 6 + 6) := 7 + ((7 × (7 × 7 × 7 + 7) − 7/7) + 77) := 77 + (7 × (7 × 7 × 7 + 7) + (77/7)) := 7 + ((7 × 7 × 7 × 7 + ((7 + 7)/7)7 ) + 7) := 8 + (((8 − 88/8) + 8) × ((8 × 8 × 8 − 8) + 8/8)) := 8 + (((8 − 8/8 + 8) + 8) × (888 − 8)/8) := 888/8 + ((8 + 8) × (8 × 8 + 88)) := ((9/9 + 9 × 9) × (((99 + 99)/9) + 9)) − 9 := 999 + (9 × (9 × (9 + 9) + 9)) := ((99/9) × (9 × (9 + 9 + 9) − (99/9))) − 9 Ï 2534 := 1 + (1 + ((1 + 11) × ((1 + 1) × 111 − 11))) := 2 + (2 22/2 2 Ï 2539 := (11 × (11 × (11 + (11 − 1)))) − 1 − 1 2 + 22 ) := 2 × ((2 + 2 + 2)2+2 − (22 + 2)) := ((22/2) × (22 − 2/2)) − 2 3 3 := 3 + ((((33/3 + 3) ) − (3 + 3) ) + 3) := 3/3 + ((3 × 33 × 33) − 3 4 := 3 + (33 × (3 × 33 − (3/3 + 3))) ) 4 := 4 + ((44 − 4)/4 × ((4/4 − 4) + 4 )) 5 3+3 := 4 + ((4 + 4)/4 × (44 − (4/4 + 4))) 5 Ï 2544 := (1 + 11) × (1 + ((1 + 1) × 111 − 11)) 5 := 4 × ((4 × (4 × (44 − 4))) − 4) := 5 + (((5 × 5 − (5 + 5)/5) + 5 ) + 5) := ((5 − 5/5) × ((55 + 5 )/5)) − 5 := (5 − 5/5) × ((55 + 55 )/5) := 6 + ((6 × (6 × (66 + 6))) − ((6 + 6)/6)6 ) := (6 × ((6 × (66 + 6)) − 6)) − (66/6 + 6) := (6 × ((6 × (66 + 6)) − 6)) − 6 − 6 := 7 + (7 × (7 × 7 × 7 + 7) + 77) := 77 + (7 × (7 × 7 × 7 + 7) + (77 + 7)/7) := 7 + ((((7 + 7 + 7)/7)7 + 7 × 7 × 7) + 7) := 88 + ((88/8 + 8) × (8 × (8 + 8) + 8/8)) := (8 + 8) × (((88 − 8/8) + 8 × 8) + 8) := 9/9 + ((9 × (9 × (9 + 9) + 9)) + 999) := 99 × (9 + 9 + 9) − ((999/9 + 9) + 9) := 8 + (((8888 − 8)/8 + 88 × (8 + 8)) + 8) 99/9 := ((9 + 9) × (9 + 9 + 9)) + (((9 + 9)/9) ) Ï 2535 := (1 + 1 + 11) × ((1 + 1 + 1 + 11)1+1 − 1) := 2 + ((2 22/2 2 Ï 2540 := (11 × (11 × (11 + (11 − 1)))) − 1 := (2 − 22) × ((2 − 2 + 22 ) + 2/2) 2×(2+2) Ï 2545 := 1 + ((1 + 11) × (1 + ((1 + 1) × 111 − 11))) := 2 + (((22/2)2 × (22 − 2/2)) + 2) )/2) := 3 × (((3 − 3/3)3×3 ) + 333) := (3 × 3 + 3/3) × ((33+3 + 33)/3) := (3 − 3/3 + 3) × (((3 − 3/3)3×3 ) − 3) := (44 + 4)/4 × (44 − (4/4 + 4)) := 44 + ((4 × (4/4 + 4)4 ) − 4) := 44 + ((4 × (4/4 + 4)4 ) + 4/4) := 5 + (((5 × (5 − 5 × 5 × 5)) + 55 ) + 5) := 55 − ((555 + 5 × 5) + 5) := 55 − (555 + 5 × 5) := (6 − 6/6) × (666/6 + 6 × 66) := ((66 + 6/6) × ((6 + 6)/6 + 6 × 6)) − 6 := (6 × ((6 × (66 + 6)) − 6)) − 66/6 := 7 + ((7 × (7 × 7 × 7 + 7) + (77/7)) + 77) := 7 + ((7 × (7 × 7 × 7 + 7) + 77) + 7/7) := (7 × ((7 × 7 × 7 + 7 + 7) + 7)) − (7/7 + 7) := 8 + ((8888/8 + 88 × (8 + 8)) + 8) := ((88 + 8)/8 + 8) × (8 × (8 + 8) − 8/8) := (888/8 × ((8 − 8/8 + 8) + 8)) − 8 := 999 + (((9 + 9 + 9)/9) × (((9 + 9)/9)9 )) := (9/9 + 9) × (9 × (9 + 9 + 9) + (99/9)) := 9 × 9 × (9 + 9) + (((99 × 99) − (9 + 9))/9) Ï 2536 := 1 + (1 + 1 + 11) × ((1 + 1 + 1 + 11)1+1 − 1) := 2 + ((2 22/2 Ï 2541 := 11 × (11 × (11 + (11 − 1))) Ï 2546 := 1 + (1 + ((1 + 11) × (1 + ((1 + 1) × 111 − 11)))) := (22/2)2 × (22 − 2/2) 2 + 22 ) + 2) 3 := 3 + (((((3 × 3 + 3/3) + 3) ) + 333) + 3) := 2222 + ((22+2 + 2)2 ) 3 := 33 × (3 × 3 − (3/3 + 3)) := ((33/3 + 3)3 ) − 33 × (3 + 3) 4 4 := 4 + ((44 − 4/4) × (((4 − 4)/4) − 4)) := 4 + (4 × (((4/4 + 4) + 4) + 4)) 5 := 5 × 5 + (((55 − 55 )/5) + 55 ) 5 := 5 + ((((55 − 5 )/5) + 5 × 5) + 5 ) := ((44 − 4)/4 × (44 − 4/4)) − 4 := 55 + (5/5 − (555 + 5 × 5)) := (6/6 + 6) × 66 × 66/(6 + 6) := (66 + 6/6) × ((6 + 6)/6 + 6 × 6) := (7 + 7 + 7) × (((7 + 7)/7)7 − 7) := (7 × ((7 × 7 × 7 + 7 + 7) + 7)) − (7 + 7)/7 := 8 + ((((8 + 8) × (8 × 8 + 88)) + 88) + 8) := 888 + ((88/8 + 8) × (88 − 8/8)) := ((8 + 8)/8) × (((8 + 8) × (88 − 8) − 8) + 8/8) := 999 + ((9 × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) := 999/9 + (9 × 9 + 9) × (9 + 9 + 9) := 9 × 9 × (9 + 9) + (((99 × 99) − 9)/9) Ï 2537 := (11 × (11 × (11 + (11 − 1)))) − 1 − 1 − 1 − 1 Ï 2542 := 1 + (11 × (11 × (11 + (11 − 1)))) := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) + ((66 − 6)/6)) 7 := 7 + (7 × 7 × 7 × 7 + ((7 + 7)/7) ) Ï 2547 := (1 + 1) × (111+1+1 − 1 − 1) − 111 := ((22/2)2 × (22 − 2/2)) − 2 − 2 := 2 + ((2 − 22) × ((2 − 22×(2+2) )/2)) := (222 + 2)/2 + ((2 × (22 + 2))2 ) := 3 × 3 + (((33/3 + 3)3 ) − (3 + 3)3 ) := 3/3 + (33 × (3 × 33 − (3/3 + 3))) := (33 × (3 × 33 − 3)) − 33 := (44 − 4/4) × (((44 − 4)/4) − 4) := 44 + ((4 × (4/4 + 4)4 ) − (4 + 4)/4) := 4 + (((4 × (4/4 + 4)4 ) − 4/4) + 44) := 5 + ((((5 + 5)/5)5 − 55 /5) + 55 ) := 55 + (55/5 × ((5 + 5)/5 − 55)) := 55 + ((5 − 5/5) × (55 − 5 − 5)/5) := 6 + (((6 + 6) × (6 × 6 × 6 − 6)) + (66/6)) := 66 + (6 × (6 × 66 + 6) + ((6 + 6)/6)6 ) 7 := 7 + (((7 + 7 + 7)/7) + 7 × 7 × 7) 8×8/(8+8) := 8 + (((8 − 8/8) ) + 8 × (8 + 8)) := 999 + ((9 × (9 × (9 + 9) + 9)) − 9/9) 7 := 6 + ((6/6 + 6) × 66 × 66/(6 + 6)) := 7/7 + ((7 + 7 + 7) × (((7 + 7)/7) − 7)) := (7 × ((7 × 7 × 7 + 7 + 7) + 7)) − 7/7 := ((8 + 8)/8) × ((8 + 8) × (88 − 8) − (8/8 + 8)) := (((8 − 88/8) + 8) × (8 × 8 × 8 − 8/8)) − 8 := (9/9 + 9 × 9) × (((99 + 99)/9) + 9) := 9 + ((9 × (9 × (9 + 9) + 9)) + 999) 179 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2548 := (1 + 1 + 11) × (1 + 1 + 1 + 11)1+1 := 2 × ((2 + 2 + 2)2+2 − 22) Ï 2558 := (1 + 1)11 + ((1 + 1)11−1−1 − (1 + 1)) Ï 2553 := 111 × (1 + (11 + 11)) := (2 × ((22 − 2) × 22+2+2 )) − 2 := (22 + 2/2) × 222/2 3 := (33 − 3/3) × (3 × 33 − 3/3) := ((3 × 3 + 3) × ((3 + 3) − 3)) − 3 4 := 3 + (((3 × 3 + 3) × ((3 + 3)3 − 3)) − 3/3) := 4 + ((4 × (4/4 + 4)4 ) + 44) := 4 + ((4 × (44 − 4) − 44)/4) := (44 × (44 − 4) − (4 + 4))/4 := (5 − 5/5) × ((55 + 55 + 5)/5) := 55 + (55 − (55 + 5 + 5)/5) := 55 − (((55 + 5)/5) + 555) := (6 × ((6 × (66 + 6)) − 6)) − ((6 + 6)/6 + 6) := 666/6 × ((66/6 + 6) + 6) := (6 + 6)/6 + (6 × ((6 × (66 + 6)) − 6)) := 7 × ((7 × 7 × 7 + 7 + 7) + 7) := 777/7 × ((((7 + 7)/7 + 7) + 7) + 7) := 77 + (((7 + 7 + 7)/7)7 + 7 × (7 × 7 − 7)) := (((8 × 8 × (88 − 8)) − 8)/((8 + 8)/8)) − 8 := 888/8 × ((8 − 8/8 + 8) + 8) := ((8 + 8)/8) × ((8 + 8) × (88 − 8) − 8/8) := (99 − 9/9) × (((9 − 9/9) + 9) + 9) := 999/9 × ((99 + 99 + 9)/9) := 9 × 9 × (9 + 9) + ((99/9) × (9/9 + 99)) Ï 2549 := ((1 + 1) × (111+1+1 − 1)) − 111 Ï 2554 := 1 + (111 × (1 + (11 + 11))) := 2/2 + (2 × ((2 + 2 + 2)2+2 − 22)) := 22 + (222/2 + 222 ) := 3 + (((33/3 + 3)3 ) − 33 × (3 + 3)) := 3/3 + (((3 × 3 + 3) × ((3 + 3)3 − 3)) − 3) 4 Ï 2559 := (1 + 1)11 + ((1 + 1)11−1−1 − 1) := (((22 − 2) × 22×(2+2) ) − 2)/2 4 := 3 + ((3 × 3 + 3) × ((3 + 3)3 − 3)) := (4 × (44 − 4) − 44)/4 := 4 + ((44 − 4)/4 × (4 − 4/4)) := (44 × (44 − 4) − 4)/4 := 5 + ((5 − 5/5) × ((55 + 55 )/5)) := 55 + (55 − (55 + 5)/5) := 55 − (555 + (55/5)) := (6 × ((6 × (66 + 6)) − 6)) − 6/6 − 6 := (6 × ((6 × (66 + 6)) − 6)) − (6 + 6)/6 := 6 + (666/6 × ((66/6 + 6) + 6)) := 7/7 + (7 × ((7 × 7 × 7 + 7 + 7) + 7)) := 7 + ((7 × ((7 × 7 × 7 + 7 + 7) + 7)) − 7/7) := 77/7 + (7 × ((7 × 7 × 7 + 7 + 7) + 7)) := (8 × ((8 + 8) × (8 + 8) + 8 × 8)) − 88/8 := 8/8 + (888/8 × ((8 − 8/8 + 8) + 8)) := (8 × ((8 + 8) × (8 + 8) + 8 × 8)) − 8/8 := 9 + ((9/9 + 9) × (9 × (9 + 9 + 9) + (99/9))) := ((9 − 999)/9) + (99 × (9 + 9 + 9) − 9) := 9 × 9 × (9 + 9) + (((9999 − 9)/9) − 9) Ï 2550 := (11 − 1) × (111 + (1 + 11)1+1 ) Ï 2555 := 1 + (1 + (111 × (1 + (11 + 11)))) Ï 2560 := (11 − 1) × (1 + 1)(1+1)×(1+1+1) := 2 + (2 × ((2 + 2 + 2)2+2 − 22)) := 2 + ((22 + 2/2) × 222/2) := 2 × ((22 − 2) × 22+2+2 ) := 3 + ((33 × (3 × 33 − 3)) − 33 ) := ((3 × 3 + 3) × ((3 + 3)3 − 3)) − 3/3 := (3 − 3/3 + 3) × ((3 − 3/3)3×3 ) := (44 − 4)/4 × (44 − 4/4) := ((44 × (44 − 4) − 4)/4) − 4 := 4 × (4 × (4 × (44 − 4))) := (5 + 5) × (5 × 5 × (5 + 5) + 5) := 55 + (5 − 5 /5) := 55 − (555 + 5 + 5) 5 5 := (6 × ((6 × (66 + 6)) − 6)) − 6 := (6 × ((6 × (66 + 6)) − 6)) − 6/6 := 6 + ((6 × ((6 × (66 + 6)) − 6)) − ((6 + 6)/6)) := (7/7 + 7 × 7) × ((7 + 7)/7 + 7 × 7) := 7 + (7 × ((7 × 7 × 7 + 7 + 7) + 7)) := ((7 + 7)/7)7 × ((7 − 7/7 + 7) + 7) := (((8 + 8)/8) + 8) × ((8 + 8) × (8 + 8) − 8/8) := ((8 − 88/8) + 8) × (8 × 8 × 8 − 8/8) := 8 × ((8 + 8) × (8 + 8) + 8 × 8) := 9 + ((9 × 9 + 9) × (9 + 9 + 9) + 999/9) := 9 + ((((99 × 99) − 9)/9) + 9 × 9 × (9 + 9)) := (9/9 + 9) × (((9 + 9)/9)9−9/9 ) Ï 2551 := ((1 + 1) × 111+1+1 ) − 111 Ï 2556 := 1 + (1 + (1 + (111 × (1 + (11 + 11))))) := ((22 + 2/2) × 222/2) − 2 Ï 2561 := 1 + (11 − 1) × (1 + 1)(1+1) 1+1+1 := 2 × (((22 − 2) × 22+2+2 ) − 2) := (((22 − 2) × 22×(2+2) ) + 2)/2 := (3 × 3 + 3) × ((3 + 3)3 − 3) := 33 + (((33/3 + 3)3 ) − (3 + 3)3 ) := (4 × (4 × (4 × (44 − 4)))) − 4 := (44 × (44 − 4) + 4)/4 := 55 + ((((5 − 5 )/5) − 5) + 5 ) := 55 + (((5 − 55 )/5) + 55 ) := 5 + ((((5 − 55 )/5) + 55) + 55 ) := 6/6 + ((6 × ((6 × (66 + 6)) − 6)) − 6) := 6 × ((6 × (66 + 6)) − 6) := 6 + ((6 × ((6 × (66 + 6)) − 6)) − 6/6) := 7 + (((((7 + 7 + 7)/7) + 7 × 7 × 7) + 7) + 7) := 7 + ((7 × ((7 × 7 × 7 + 7 + 7) + 7)) + 7/7) := 777/7 + 7 × (7 × 7 × 7 + 7) := (8 × ((8 + 8) × (8 + 8) + 8 × 8)) − (8/8 + 8) := ((8 × 8 × (88 − 8)) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 + 8) × (8 + 8) + 8 × 8)) := 99 + (9 × 9 × (9 + 9) + 999) := 99 × (9 + 9 + 9) − ((999 + 9)/9) 3 := 3 + ((3 − 3/3) × (3 × 33 − 3/3)) 4 := ((4 × (44 − 4) − 4)/4) − 4 − 4 5 5 7 9−9/9 := ((9/9 + 9) × (((9 + 9)/9) )) − 9 Ï 2552 := 11 × (111 + 111+1 ) Ï 2557 := 1 + (1 + (1 + (1 + (111 × (1 + (11 + 11)))))) Ï 2562 := (11 + (11 − 1)) × (1 + 111+1 ) := 2 × (((2 + 2 + 2)2+2 − 22) + 2) := 2 + (((22 + 2/2) × 222/2) + 2) := 2 + (2 × ((22 − 2) × 22+2+2 )) := 33/3 × ((33+3 − 33)/3) := 3/3 + ((3 × 3 + 3) × ((3 + 3)3 − 3)) := 3 + (((3 × 3 + 3) × ((3 + 3)3 − 3)) + 3) := (4 + 4) × (((44 − 4)/4) + 44 ) := ((44 × (44 − 4) + 4)/4) − 4 := ((44 × (44 − 4) + 4) + 4)/4 := 55 + (((((5 − 55 ) + 5)/5) − 5) + 55 ) := 55 + ((((5 − 55 ) + 5)/5) + 55 ) := 5 + (((((5 − 55 ) + 5)/5) + 55) + 55 ) := 6 + ((66 + 6/6) × ((6 + 6)/6 + 6 × 6)) := 6/6 + (6 × ((6 × (66 + 6)) − 6)) := 6 + (6 × ((6 × (66 + 6)) − 6)) := 77/7 × (7 × 7 × 7 − 777/7) := 7 + ((7/7 + 7 × 7) × ((7 + 7)/7 + 7 × 7)) := 7 + ((7 × ((7 × 7 × 7 + 7 + 7) + 7)) + 7) := (8 × ((8 + 8) × (8 + 8) + 8 × 8)) − 8 := 8 + ((8 × ((8 + 8) × (8 + 8) + 8 × 8)) − (88/8)) := (8 + 8)/8 + (8 × ((8 + 8) × (8 + 8) + 8 × 8)) := 99/9 × (9 × (9 + 9 + 9) − (99/9)) := 9 + ((99 − 9/9) × (((9 − 9/9) + 9) + 9)) := 99 × (9 + 9 + 9) − 999/9 180 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2563 := 11 × (11 + (1 + 1) × 111) Ï 2568 := (1 + 1) × ((1 + 11) × (111 − (1 + 1 + 1 + 1))) Ï 2573 := (11 × (1 + (11 + (1 + 1) × 111))) − 1 := 2 × (2 × (22 − 2) + 22 ) := (22 × ((22/2)2 − (2 + 2))) − 2/2 := (33 × (3 × 33 − 3)) − 3 − 3 := (33 × (3 × 33 − 3)) − 3/3 := 4 + ((4 × (44 − 4) − 4)/4) := 4 + ((4 × (4 × (4 × (44 − 4)))) + 4) := 4 × 44 + ((((4 − 4/4) + 4)4 ) − 4) := 55 − ((555 + (5 + 5)/5) + 5) := 55 − (555 + (5 + 5)/5) := 5 + (55 − (555 + (5 + 5)/5)) := 6 + ((6 × ((6 × (66 + 6)) − 6)) + 6/6) := 6 + ((6 × ((6 × (66 + 6)) − 6)) + 6) := 6 + ((6 × ((6 × (66 + 6)) − 6)) + (66/6)) := 7 + (((7 × ((7 × 7 × 7 + 7 + 7) + 7)) + 7/7) + 7) := 7 + (7 × (7 × 7 × 7 + 7) + 777/7) := 7 × 77 + ((((7 + 7)/7)77/7 ) − (7 + 7)) := 8 + (((8 − 88/8) + 8) × (8 × 8 × 8 − 8/8)) := 8 + (8 × ((8 + 8) × (8 + 8) + 8 × 8)) := 8 + ((88/8 + 8) × ((8 × (8 + 8) − 8/8) + 8)) := 99/9 × (9 × (9 + 9 + 9) − (9/9 + 9)) := 9 × 9 × (9 + 9) + ((9999 − 9)/9) := 99 × (9 + 9 + 9) − (9/9 + 99) 2 := 22/2 × (222 + 22/2) 3 := (33 × (3 × 3 − 3)) − 33/3 4 Ï 2564 := 1 + (11 × (11 + (1 + 1) × 111)) := 2 × (((22 − 2) × 2 2+2+2 Ï 2569 := (11 − 1) × (1 + (1 + 1)(1+1) := (2 × (2 + 2 + 2) ) + 2) := ((3 − 33)/3) + (33 × (3 × 33 − 3)) 2 2+2 1+1+1 )−1 ) − (22 + 2/2) := 3/3 + ((33 × (3 × 33 − 3)) − (3 + 3)) 4 := 4 + (((4 × (44 − 4) + 4)/4) + 4) := 4 + (4 × (4 × (4 × (44 − 4)))) := 22 × ((22/2)2 − (2 + 2)) := 33 × (3 × 33 − 3) := 4 + ((44 − 4)/4 × (4/4 + 44 )) 5 5 Ï 2574 := 11 × (1 + (11 + (1 + 1) × 111)) := 5 − ((555 + 5/5) + 5) := 5 − (555 + 5/5) := 5 + (55 − (555 + 5/5)) := 6 + ((6 × ((6 × (66 + 6)) − 6)) + ((6 + 6)/6)) := 6 + (((6 × ((6 × (66 + 6)) − 6)) + 6/6) + 6) := 66 × ((66 × 6/(6 + 6)) + 6) := 7 + (((7/7 + 7 × 7) × ((7 + 7)/7 + 7 × 7)) + 7) := 77 + ((7 × (7 × 7 × 7 + 7 + 7)) − 7) := 7 + ((((7 + 7)/7)7 × ((7 − 7/7 + 7) + 7)) + 7) := ((8 × 8 × (88 − 8)) + 8)/((8 + 8)/8) := 8 + ((8 × ((8 + 8) × (8 + 8) + 8 × 8)) + 8/8) := ((8 + 8)/8) × (((8 + 8) × (88 − 8) − 8/8) + 8) := 99 × (9 + 9 + 9) − (9/9 + 99 + 9) := 9 × 9 × (9 + 9) + 9999/9 := 99 × (((9 − 9/9) + 9) + 9) Ï 2565 := 1 + (1 + (11 × (11 + (1 + 1) × 111))) Ï 2570 := (11 − 1) × (1 + (1 + 1)(1+1) 2+2 1+1+1 := 2 + (22/2 × (222 + 22/2)) := (2 × (2 + 2 + 2) := 3 × 3 × (3 × (3 × 33 − 3) − 3) := (33 × (3 × 33 − 3)) − (3/3 + 3) 4 ) Ï 2575 := ((1 + 111) × (1 + (11 + 11))) − 1 ) − 22 := 22 + ((22 + 2/2) × 222/2) := 3/3 + (33 × (3 × 33 − 3)) 4 := 4 + ((4 × (44 − 4) + 4)/4) := (44 − 4)/4 × (4/4 + 4 ) 5 := 4 + ((44 × (44 − 4) + 44)/4) 5 := 5 − (555 + 5) := 5 − 555 := 6 + ((666/6 × ((66/6 + 6) + 6)) + 6) 7 := 5 + (55 − 555) := 6666 − (((6 + 6)/6)6+6 ) := (6 × (6 × (66 + 6))) − (66/6 + 6) := ((77 + 7)/7 + 7) × (((7 + 7)/7) + 7) := 77 + (((7/7 + 7 × 7) := (88/8 + 8) × ((8 × (8 + 8) − 8/8) + 8) := (((8 + 8)/8) + 8) × ((8 + 8) × (8 + 8) + 8/8) := (8/8 + 8 + 8 + 8) × (888/8 − 8) := 99 × (9 + 9 + 9) − (99 + 9) := 9 × 9 × (9 + 9) + (9999 + 9)/9 := 9/9 + (99 × (((9 − 9/9) + 9) + 9)) Ï 2566 := 1 + (1 + (1 + (11 × (11 + (1 + 1) × 111)))) := (2 × ((2 + 2 + 2) 2+2 − 2)) − 22 (7+7)/7 Ï 2571 := (11 − 1) × (1 + (1 + 1)(1+1) := 2/2 + ((2 × (2 + 2 + 2) 2+2 := 77 + ((7 × (7 × 7 × 7 + 7 + 7)) − 7/7) ) − 7) 1+1+1 )+1 ) − 22) Ï 2576 := (1 + 111) × (1 + (11 + 11)) := 2 + (22 × ((22/2)2 − (2 + 2))) := 3 + ((33 × (3 × 33 − 3)) − 33/3) := (33 × (3 × 33 − 3)) − 3 := 3 + ((33 × (3 × 33 − 3)) − 3/3) := 4 + (((44 × (44 − 4) + 4) + 4)/4) := (44 × (44 − 4) + 44)/4 := 4 × ((4 × (4 × (44 − 4))) + 4) := 5 + (5/5 − (555 + 5)) := 55 + (5/5 − 555) := 5 + ((55 − 555) + 5/5) := ((66 − 6)/6) + (6 × ((6 × (66 + 6)) − 6)) := ((66 × (66 + 6 + 6)) − 6)/((6 + 6)/6) := 6 + (6666 − (((6 + 6)/6)6+6 )) := 7 + ((7 × ((7 × 7 × 7 + 7 + 7) + 7)) + (77/7)) := ((7 + 7)/7)7 + (7 × (7 × 7 × 7 + 7) − 7) := 77 + (7 × (7 × 7 × 7 + 7 + 7)) := 8 + (((8 + 8)/8) × ((8 + 8) × (88 − 8) − 8/8)) := 88/8 + (8 × ((8 + 8) × (8 + 8) + 8 × 8)) := 8 + ((8 × ((8 + 8) × (8 + 8) + 8 × 8)) + 8) := 9/9 + (99 × (9 + 9 + 9) − (99 + 9)) := 9 + (99 × (9 + 9 + 9) − 999/9) := (9 + 9)/9 + (99 × (((9 − 9/9) + 9) + 9)) 5 Ï 2567 := 1111 + ((1 + 1 + 11) × (1 + 111)) Ï 2572 := (11 × (1 + (11 + (1 + 1) × 111))) − 1 − 1 2+2 Ï 2577 := 1 + ((1 + 111) × (1 + (11 + 11))) := 222/2 + ((22 + 2/2)2 ) := 2 + ((22/2 × (222 + 22/2)) + 2) := 2 + ((2 × (2 + 2 + 2) := 33/3 + ((3 × 3 + 3) × ((3 + 3)3 − 3)) := 3/3 + ((33 × (3 × 33 − 3)) − 3) := 3 + (33 × (3 × 33 − 3)) := 4 + (((44 × (44 − 4) − 4)/4) + 4) := (4 × ((4 × (4 × (44 − 4))) + 4)) − 4 := 4 × 44 + (((4 − 4/4) + 4)4 ) := 55 + ((5 + 5)/5 − (555 + 5)) := 55 + ((5 + 5)/5 − 555) := 5 + (((5 + 5)/5 − 555) + 55 ) := 66/6 + (6 × ((6 × (66 + 6)) − 6)) := 6 + ((6 × ((6 × (66 + 6)) − 6)) + ((66 − 6)/6)) 7 ) − 22) 7 := ((66 × (66 + 6 + 6)) + 6)/((6 + 6)/6) := 7 + (((7 + 7)/7) × ((7 − 7/7 + 7) + 7)) := 7 × (7 × 7 + 7) + (((7 + 7 + 7)/7) − 7) := 77 + ((7/7 + 7 × 7)(7+7)/7 ) := 8 + ((8 × ((8 + 8) × (8 + 8) + 8 × 8)) − 8/8) := 8 + (((8 × 8 × (88 − 8)) + 8)/((8 + 8)/8)) := 8 + (((8 × ((8 + 8) × (8 + 8) + 8 × 8)) + 8/8) + 8) := ((9 − 9/9) + 9) × (9 × (9 + 9) − (99/9)) := 99 × (9 + 9 + 9) − ((9 + 9)/9 + 99) := 9 + (((9999 − 9)/9) + 9 × 9 × (9 + 9)) 181 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2578 := 1 + (1 + ((1 + 111) × (1 + (11 + 11)))) Ï 2583 := (11 + (11 − 1)) × (1 + (1 + 111+1 )) Ï 2588 := 1 + (11 + ((1 + 111) × (1 + (11 + 11)))) 2 2 := 2 + ((22 × ((22/2) − (2 + 2))) + 2) := (22 − 2/2) × ((22/2) + 2) := 2 × ((2 + 2 + 2)2+2 − 2) := 3 + ((33 × (3 × 33 − 3)) + 3/3) := 3 × ((33 × (33 − 3/3)) + 3) := (3/3 + 3) × (3 × (3 + 3)3 − 3/3) := 4 + (((44 − 4)/4 × (4/4 + 44 )) + 4) := ((44 − 4)/4) × ((4/4 − 4) + 44) := (4 × ((4 + 4) × (4 − 4/4)4 )) − 4 := 5 + ((55 − (555 + (5 + 5)/5)) + 5) := 55 + ((55 + 5 + 5)/5 − 555) := (5 − 5/5) × (((55 + 55) + 55 )/5) := ((6 + 6)/6) × (6 × 6 × 6 × 6 − (6/6 + 6)) := 6 × 66 + ((6 × 6/(6 + 6))6/6+6) := (6 + 6)/6 + ((6 × (6 × (66 + 6))) − 6) := 7 + ((7 × (7 × 7 × 7 + 7 + 7)) + 77) := 7/7 + ((((7 + 7)/7)77/7 ) + 7 × 77) := 8 + ((((8 + 8)/8) + 8) × ((8 + 8) × (8 + 8) + 8/8)) := ((8/8 + 8 + 8) × (8 × 8 + 88)) − 8/8 := ((8 × (8 × (88 − 8) + 8)) − 8)/((8 + 8)/8) := 9 + (9999/9 + 9 × 9 × (9 + 9)) := 9 + (99 × (((9 − 9/9) + 9) + 9)) := ((9 + 9)/9) × (((9 + 9) × (9 × 9 − 9)) − ((9 + 9)/9)) 7 := ((7 + 7)/7) + 7 × (7 × 7 × 7 + 7) Ï 2579 := 1 + (1 + (1 + ((1 + 111) × (1 + (11 + 11))))) Ï 2584 := (11 × (11 + ((1 + 1) × (1 + 111)))) − 1 := 2 × ((2 + 2 + 2)2+2 − (2 + 2)) := 2 + (((22 + 2/2)2 ) + 222/2 ) Ï 2589 := (1 + 1 + 1) × ((((1 + 11)1+1+1 )/(1 + 1)) − 1) := 2/2 + (2 × ((2 + 2 + 2)2+2 − 2)) 3 := 3 + (((33 × (3 × 33 − 3)) − 3/3) + 3) := 3 + ((3 × (3 × 33 − 3)) − 33/3) := (33 × (3 × 33 − 3)) − 3 := 4 + (((44 × (44 − 4) + 44)/4) + 4) := 4 + ((4 × ((4 × (4 × (44 − 4))) + 4)) + 4) := ((44 + 4) × (44 − 4) − 44)/4 5 := 5 + ((55 − (555 + 5/5)) + 5) := 5 + (((5 − (555 + 5/5)) + 5) + 5) := 5 × 5 + (55 − ((555 + 5/5) + 5)) := (6 × (6 × (66 + 6))) − (6/6 + 6 + 6) := (6 × (6 × (66 + 6))) − ((6 + 6)/6 + 6) := (6 × (6 × (66 + 6))) − 6 × 6/(6 + 6) := 7 × (7 × 7 + 7) + ((7 + 7 + 7)/7) := 7 + (((7/7 + 7 × 7)(7+7)/7 ) + 77) := 77 + (777/7 + 7 × 7 × 7 × 7) := 8 + ((8 × ((8 + 8) × (8 + 8) + 8 × 8)) + (88/8)) := (8/8 + 8 + 8) × (8 × 8 + 88) := 8 + ((8/8 − 88 × 88)/(8 − 88/8)) := 9 + ((9999 + 9)/9 + 9 × 9 × (9 + 9)) := (9 − 9/9) × ((9 + 9) × (9 + 9) − 9/9) := 9 + ((99/9 + 9) × ((999/9 + 9) + 9)) 7 Ï 2580 := (11 − 1) × (1 + 1 + (1 + 1)(1+1) 1+1+1 ) Ï 2590 := (1 + 1) × (((1 + 1 + 1) × (1 + 11))1+1 − 1) Ï 2585 := 11 × (11 + ((1 + 1) × (1 + 111))) := 2 × ((2 + 2 + 2)2+2 − (2 + 2 + 2)) := 2 + ((22 − 2/2) × ((22/2)2 + 2)) := (2 × (2 + 2 + 2)2+2 ) − 2 := 3 + ((33 × (3 × 33 − 3)) + 3) := 33/3 + (33 × (3 × 33 − 3)) := 3/3 + ((33 × (3 × 33 − 3)) − 3) := 4 + (4 × ((4 × (4 × (44 − 4))) + 4)) := 4 + (((((4 − 4/4) + 4)4 ) + 4 × 44) + 4) := (44 − 4)/4 × ((44 − 4/4) + 4) := 5 + ((55 − 555) + 5) := 5 + (((55 − 555) + 5) + 5) := 5 × 5 + (55 − (555 + 5)) := (6 + 6) × (6 × 6 × 6 − 6/6) 77/7 := (6 × (6 × (66 + 6))) − 6/6 − 6 := (6 × (6 × (66 + 6))) − (6 + 6)/6 7 := 7 + (7 × (7 × 7 × 7 + 7) + ((7 + 7)/7) ) := (7 × (7 × (7 × 7 − 7) + 77)) − 7 := ((88 + 8)/8 + 8) × (8 × (8 + 8) + 8/8) := 8/8 + ((8/8 + 8 + 8) × (8 × 8 + 88)) := (8 − 8/8) × ((8888 − 8)/(8 + 8 + 8)) := (99/9 + 9) × ((999/9 + 9) + 9) := 99/9 + (99 × (((9 − 9/9) + 9) + 9)) := ((9 + 9)/9) × (((9 + 9) × (9 × 9 − 9)) − 9/9) := 7 × 77 + ((((7 + 7)/7) ) − 7) Ï 2581 := ((1 + 1) × ((1 + 1 + 1) × (1 + 11))1+1 ) − 11 Ï 2586 := 1 + (11 × (11 + ((1 + 1) × (1 + 111)))) Ï 2591 := ((1 + 1) × ((1 + 1 + 1) × (1 + 11))1+1 ) − 1 := (2 × (2 + 2 + 2)2+2 ) − 22/2 := (2 × ((2 + 2 + 2)2+2 − 2)) − 2 := (2 × (2 + 2 + 2)2+2 ) − 2/2 := (33 × (3 × 33 − 3)) − 33/3 := (33 × (3 × 33 − 3)) − 3 − 3 := (33 × (3 × 33 − 3)) − 3/3 := 4 + ((((4 − 4/4) + 4)4 ) + 4 × 44) := 4 × 4 + ((44 − 4)/4 × (4/4 + 44 )) := (4 × ((4 + 4) × (4 − 4/4)4 )) − 4/4 := 55 + (55/5 − 555) := 5 + ((55/5 − 555) + 55 ) := 5 + (((55/5 − 555) + 55 ) + 5) := (6 × (6 × (66 + 6))) − 66/6 := (6 × (6 × (66 + 6))) − 6 := (6 × (6 × (66 + 6))) − 6/6 7 := 7777/7 + ((7 + 7) × (7 × (7 + 7) + 7)) := 7 + (((7 + 7 + 7)/7) + 7 × (7 × 7 + 7)) := 7/7 + ((7 × (7 × (7 × 7 − 7) + 77)) − 7) := (8/8 − 88 × 88)/(8 − 88/8) := (8 + 8)/8 + ((8/8 + 8 + 8) × (8 × 8 + 88)) := ((88 + 8) × (88/8 + 8 + 8)) − 8/8 := (99/9 + 9 + 9) × ((9 × 9 − 9/9) + 9) := ((99 + 9)/9) + (99 × (((9 − 9/9) + 9) + 9)) := 99 × (9 + 9 + 9) − (9/9 + 9 × 9) Ï 2582 := (11 + 11 − 1) × (1 + 1 + 111+1 ) − 1 Ï 2587 := 11 + ((1 + 111) × (1 + (11 + 11))) Ï 2592 := (1 + 1) × ((1 + 1 + 1) × (1 + 11))1+1 := ((2 × 2 × 22)2 + 2)/(2/2 + 2) := (2 × ((2 + 2 + 2)2+2 − 2)) − 2/2 := 2 × (2 + 2 + 2)2+2 := ((33/3 + 3)3 ) − (3 + 3) × 33 := 3/3 + ((33 × (3 × 33 − 3)) − (3 + 3)) := 33 × (3 × 33 − 3) := ((44 × (4 × 4 + 4)) + 44)/((4 + 4)/4) := 4 + (((44 − 4)/4) × ((4/4 − 4) + 44)) := 4 × ((4 + 4) × (4 − 4/4)4 ) := 55 + (((55 + 5)/5) − 555) := ((5/5 + 5)5 /(5 − (5 + 5)/5)) − 5 := (5/5 + 5)5 /(5 − (5 + 5)/5) := (6 − 66)/6 + (6 × (6 × (66 + 6))) := 6/6 + ((6 × (6 × (66 + 6))) − 6) := 6 × (6 × (66 + 6)) 77/7 := (7/7 + 7) × ((77/7 + 7)(7+7)/7 ) := 7 + (((7 × (7 × 7 × 7 + 7 + 7)) − 7/7) + 77) := 7 × 77 + (((7 + 7)/7) := ((8 + 8)/8) × ((8 + 8) × (88 − 8) + (88/8)) := (88 + 8 + 8)/8 × (888/8 + 88) := (88 + 8) × (88/8 + 8 + 8) := 9 + (99 × (9 + 9 + 9) − (9/9 + 99)) := 9 + ((9999/9 + 9 × 9 × (9 + 9)) + 9) := (9 + 9) × ((9 + 9) × (9 − 9/9)) 182 ) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2593 := 1 + ((1 + 1) × ((1 + 1 + 1) × (1 + 11))1+1 ) Ï 2598 := ((1 + (11 + 11)) × (1 + 1 + 111)) − 1 Ï 2603 := (1 + 1)11 + ((1111 − 1)/(1 + 1)) := 2/2 + (2 × (2 + 2 + 2)2+2 ) := 2 + (2 × ((2 + 2 + 2)2+2 + 2)) := 2 + (((2 × (22 + 2) + 2/2) + 2)2 ) := 3/3 + (33 × (3 × 33 − 3)) := 3 + ((33 × (3 × 33 − 3)) + 3) := 33/3 + (33 × (3 × 33 − 3)) := 4/4 + (4 × ((4 + 4) × (4 − 4/4)4 )) := ((44 + 4) × (44 − 4) − (4 + 4))/4 := 4 + (((44 + 4) × (44 − 4) − 4)/4) := 5 × 5 + (55 − (555 + (5 + 5)/5)) := 555 + ((((5 + 5)/5)55/5 ) − 5) := 555 + (((5 + 5)/5)55/5 ) := 6/6 + (6 × (6 × (66 + 6))) := 6 + (6 × (6 × (66 + 6))) := 66/6 + (6 × (6 × (66 + 6))) := 7 + ((((7 + 7 + 7)/7) + 7 × (7 × 7 + 7)) + 7) := 7/7 + (7 × (7 × (7 × 7 − 7) + 77)) := 7 + ((7 × (7 × (7 × 7 − 7) + 77)) − 7/7) := 8/8 + ((88 + 8) × (88/8 + 8 + 8)) := 8 + ((8 − 8/8) × ((8888 − 8)/(8 + 8 + 8))) := (88/8 + 8) × ((8 × (8 + 8) + 8/8) + 8) := 9/9 + ((9 + 9) × ((9 + 9) × (9 − 9/9))) := 9 + (((99/9 + 9) × ((999/9 + 9) + 9)) + 9) := 99/9 + ((9 + 9) × ((9 + 9) × (9 − 9/9))) 7 Ï 2594 := (1 + 1) × (1 + ((1 + 1 + 1) × (1 + 11))1+1 ) Ï 2604 := (1 + 11) × ((1 + 1) × (111 − 1 − 1) − 1) Ï 2599 := (1 + (11 + 11)) × (1 + 1 + 111) := (22 + 2/2) × (222/2 + 2) := 2 × ((((2 + 2 + 2)2+2 + 2) + 2) + 2) := 3 + ((33 × (3 × 33 − 3)) − 3/3) := 3 + (((33 × (3 × 33 − 3)) + 3/3) + 3) := 3333 − 33+3 := 4 + ((44 − 4)/4 × ((44 − 4/4) + 4)) := ((44 + 4) × (44 − 4) − 4)/4 := 4 + ((44 + 4) × (44 − 4)/4) := 5 × 5 + (55 − (555 + 5/5)) := (5 × ((55 − 5)/(5/5 + 5))) − 5/5 := 55 − ((55 + 5/5)/(5/5 + 5)) := (6 + 6)/6 + (6 × (6 × (66 + 6))) := 6 + ((6 × (6 × (66 + 6))) + 6/6) := 6 + ((6 × (6 × (66 + 6))) + 6) := (((7 + 7)/7 + 7 × 7)(7+7)/7 ) − 7 := (7 + 7)/7 + (7 × (7 × (7 × 7 − 7) + 77)) := 7 + (7 × (7 × (7 × 7 − 7) + 77)) := (8 + 8)/8 + ((88 + 8) × (88/8 + 8 + 8)) := 8 + (((88 + 8) × (88/8 + 8 + 8)) − 8/8) := ((8 × 8 × (88 − 8)) + 88)/((8 + 8)/8) := (9 + 9)/9 + ((9 + 9) × ((9 + 9) × (9 − 9/9))) := 9 + (((9 + 9)/9) × (((9 + 9) × (9 × 9 − 9)) − 9/9)) := ((99 + 9)/9) + ((9 + 9) × ((9 + 9) × (9 − 9/9))) := 2 + (2 × (2 + 2 + 2) 2+2 ) Ï 2595 := 1 + ((1 + 1) × (1 + ((1 + 1 + 1) × (1 + 11))1+1 )) Ï 2600 := 1 + ((1 + (11 + 11)) × (1 + 1 + 111)) := 2 × (((2 + 2 + 2) := 2 + ((2 × (2 + 2 + 2)2+2 ) + 2/2) 2+2 Ï 2605 := 1 + ((1 + 11) × ((1 + 1) × (111 − 1 − 1) − 1)) := 2 + ((((2 × (22 + 2) + 2/2) + 2)2 ) + 2) + 2) + 2) := (33 − 3/3) × (3 × 33 + 3/3) := 3/3 + (3333 − 33+3 ) := (44 + 4) × (44 − 4)/4 := 4 + (((44 + 4) × (44 − 4) + 4)/4) := 5 × 5 + (55 − 555) := 5 × ((55 − 5)/(5/5 + 5)) := 5 + (5 × ((55 − 5)/(5/5 + 5))) := (6 × 6/(6 + 6)) + (6 × (6 × (66 + 6))) := 6 + ((6 × (6 × (66 + 6))) + ((6 + 6)/6)) := 6 + (((6 × (6 × (66 + 6))) + 6/6) + 6) := (7 × (7 × (7 × 7 − 7) + 77)) − (7 + 7)/7 := (7/7 + 7) × (7 × 7 × 7 − (77/7 + 7)) := 7 + ((7 × (7 × (7 × 7 − 7) + 77)) + 7/7) := 88/8 + ((8/8 + 8 + 8) × (8 × 8 + 88)) := 8 + ((88 + 8) × (88/8 + 8 + 8)) := ((8 − 88/8) + 8) × ((8 × 8 × 8 + 8/8) + 8) := ((9 + 9 + 9)/9) + ((9 + 9) × ((9 + 9) × (9 − 9/9))) := (9 − 9/9) × ((9 + 9) × (9 + 9) + 9/9) := ((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9)9 ) + 9) := 3 + (33 × (3 × 33 − 3)) := (44 × (((44 − 4)/4) − 4)) − 4/4 Ï 2596 := (1 + 1) × (11 × (111+1 − (1 + 1 + 1))) Ï 2601 := (1 + ((11 − 1)1+1 /(1 + 1)))1+1 Ï 2606 := (11 × (11 + ((1 + 1) × (1 + 1 + 111)))) − 1 2 := 2 + (2 × ((((2 + 2 + 2)2+2 + 2) + 2) + 2)) := 2 × ((2 + 2 + 2)2+2 + 2) := ((2 × (22 + 2) + 2/2) + 2) := 3 + ((33 × (3 × 33 − 3)) + 3/3) := 3 × ((3 × 3 × (3 × 33 − 3)) + 3) := 3 + ((33 × (3 × 33 − 3)) + 33/3) := ((44 + 4) × (44 − 4) + 4)/4 := 4 + ((((44 + 4) × (44 − 4) + 4) + 4)/4) := ((5/5 − 5) + 55)(5+5)/5 := 5 + (((5/5 − 5) + 55)(5+5)/5 ) := 6 + ((6 × (6 × (66 + 6))) + (6 × 6/(6 + 6))) := 6 + (((6 × (6 × (66 + 6))) + ((6 + 6)/6)) + 6) := 44 × (((44 − 4)/4) − 4) := 5 × 5 + ((55 − 555) + 5/5) := 6 + ((6 × (6 × (66 + 6))) − ((6 + 6)/6)) (7+7)/7 := 77 + (7 × 7 × 7 × 7 + ((7 + 7)/7)7 ) := (7 × (7 × (7 × 7 − 7) + 77)) − 7/7 := ((7 + 7)/7 + 7 × 7) := ((8 × (8 × (88 − 8) + 8)) + 8)/((8 + 8)/8) := (8/8 + 8) × ((8/8 + 8 + 8)(8+8)/8 ) := 88 + ((8888 − 8)/8 + 88 × (8 + 8)) := 99/9 × ((9 × (9 + 9 + 9) − 9) + ((9 + 9)/9)) := 9 + ((9 + 9) × ((9 + 9) × (9 − 9/9))) := 9/9 + (((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9)9 ) + 9)) Ï 2597 := 1 + ((1 + 1) × (11 × (111+1 − (1 + 1 + 1)))) Ï 2602 := 1 + ((1 + ((11 − 1)1+1 /(1 + 1)))1+1 ) 2 2 Ï 2607 := 11 × (11 + ((1 + 1) × (1 + 1 + 111))) := 2 + ((2 × 22 + 2) + 22 ) := 22/2 + (2 × ((2 + 2 + 2)2+2 + 2)) := 3 + (((33 × (3 × 33 − 3)) − 3/3) + 3) := 33 + ((33 × (3 × 33 − 3)) + 3/3) := 3 + (3333 − 33+3 ) := 4/4 + (44 × (((44 − 4)/4) − 4)) := (((44 + 4) × (44 − 4) + 4) + 4)/4 := 4 + ((((44 + 4) × (44 − 4) − 4)/4) + 4) := 5 + ((5/5 + 5)5 /(5 − (5 + 5)/5)) := 55 + (((5 + 5)/5)5 − 555) := 5 + ((((5 + 5)/5)5 − 555) + 55 ) := 6 + ((6 × (6 × (66 + 6))) − 6/6) := ((66 − 6)/6) + (6 × (6 × (66 + 6))) := 2/2 + (2 × ((2 + 2 + 2) 2+2 + 2)) (7+7)/7 := 77 + (((7 + 7 + 7)/7)7 + 7 × 7 × 7) := 7 × (7 × (7 × 7 − 7) + 77) := 7/7 + (((7 + 7)/7 + 7 × 7) := (8 − 8/8) × ((8 − 8/8) × (8 × 8 − 88/8)) := ((88 − 8/8) × ((88 + 88)/8 + 8)) − 8 := 88 + (8888/8 + 88 × (8 + 8)) := 9 + (((9 + 9)/9) × (((9 + 9) × (9 × 9 − 9)) − ((9 + 9)/9))) := 9 + (((9 + 9) × ((9 + 9) × (9 − 9/9))) + 9/9) := (9 × 9 − ((9 + 9)/9)) × (99/((9 + 9 + 9)/9)) 183 ) := 6 + (((6 × (6 × (66 + 6))) + (6 × 6/(6 + 6))) + 6) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2608 := 1 + (11 × (11 + ((1 + 1) × (1 + 1 + 111)))) Ï 2613 := (1 + 1 + 11) × (1 + ((1 + 1) × (11 − 1)1+1 )) Ï 2618 := (1 + 1) × 11 × (111+1 − 1 − 1) := 2 × ((2 + 2 + 2)2+2 + 2 × (2 + 2)) := 22 + ((2 × (2 + 2 + 2)2+2 ) − 2/2) := 22 × ((22/2)2 − 2) := (3 − 3/3) × ((33/3)3 − 33 ) := 3 + ((33 + 3) × (3 × 33 + 3 + 3)) := 33 + ((33 × (3 × 33 − 3)) − 3/3) := 4 × (((4 + 4) × (4 − 4/4)4 ) + 4) := 44 + ((((4 − 4/4) + 4)4 ) − 44) := 44/4 × (44 − ((4 + 4)/4 + 4 × 4)) := 5 + ((((5 + 5)/5)55/5 ) + 555) := 55 − (((5 + 5)/5)5−5/5+5 ) := 55/5 × (((5 − (5 + 5)/5)5 ) − 5) := 6 + ((6 × (6 × (66 + 6))) + ((66 − 6)/6)) := (66 + 6/6) × ((66 × 6/(6 + 6)) + 6) := (6 − 66)/6 + (6 × ((6 × (66 + 6)) + 6)) := (7 × (7 × 77 − 7)) − 7777/7 := 77 × (7 × 7 − (7/7 + 7 + 7)) := (8 + 8) × ((88/8 + 88) + 8 × 8) := 8 × 8 × 8 + ((88 × (8 + 8 + 8)) − (88/8)) := (888/8 + 8) × (88 + 88)/8 := (9 − 9/9) × ((9 + 9) × (9 + 9) + ((9 + 9)/9)) := ((9 + 9 + 9)/9) × (9 × 99 − (99/9 + 9)) := 999 + ((9 × (99 + 9 × 9)) − 9/9) := 7 + (((7 + 7)/7 + 7 × 7) (7+7)/7 ) Ï 2609 := (1 + 1)11 + ((11 + 1111)/(1 + 1)) Ï 2614 := (1 + 1) × (((1 + 11) × (111 − 1 − 1)) − 1) := 2 + ((2 × ((2 + 2 + 2)2+2 + 2)) + 22/2) := 22 + (2 × (2 + 2 + 2)2+2 ) := (3 × (33 × 33 )) − ((3/3 + 3)3 ) := (3 − 3/3) × (((33/3)3 − 33 ) + 3) := 4 + ((((44 + 4) × (44 − 4) + 4)/4) + 4) Ï 2619 := 1 + ((1 + 1) × 11 × (111+1 − 1 − 1)) := 2/2 + (22 × ((22/2)2 − 2)) 4 := 4 + ((44 − 4)/4 × ((4/4 + 4 ) + 4)) 5 := 5 + (55 − ((55 + 5/5)/(5/5 + 5))) := 55 + (5 − (555 + (55/5))) := 6 + ((6 × (6 × (66 + 6))) + (66/6)) := ((6 + 6)/6) × (6 × 6 × 6 × 6 + (66/6)) 7 := 3 × (3 × (3 × (3 × 33 − 3) + 3)) := (4 × (4 × (4 × (44 − 4) + 4))) − (4/4 + 4) := 55 + (55 − ((555 + 5/5) + 5)) := 6 + ((66 + 6/6) × ((66 × 6/(6 + 6)) + 6)) := 7 × 7 × (7 × 7 + 7) − (((7 + 7)/7)7 + 7) := 7 + ((((7 + 7 + 7)/7) + 7 × 7 × 7) + 77) := 7/7 + (77 × (7 × 7 − (7/7 + 7 + 7))) := 8 + ((8/8 + 8) × ((8/8 + 8 + 8)(8+8)/8 )) := 8 × 8 + ((((8 + 8)/8) + 8) × ((8 + 8) × (8 + 8) − 8/8)) := (88/8 + 8 + 8) × ((8/8 + 88) + 8) := 9 + ((9 − 9/9) × ((9 + 9) × (9 + 9) + 9/9)) := 9 + (((9 × 9 + 9)/(9 + 9)) × ((((9 + 9)/9)9 ) + 9)) := 999 + (9 × (99 + 9 × 9)) Ï 2620 := (1 + 1) × (1 + 11 × (111+1 − 1 − 1)) Ï 2610 := 11 + ((1 + (11 + 11)) × (1 + 1 + 111)) Ï 2615 := ((1 + 1) × ((1 + 11) × (111 − 1 − 1))) − 1 := 22 + (2 × ((2 + 2 + 2)2+2 − 2)) := 22 + ((2 × (2 + 2 + 2)2+2 ) + 2/2) := 2 + (22 × ((22/2)2 − 2)) := (33 + 3) × (3 × 33 + 3 + 3) := 33/3 + (3333 − 33+3 ) := 33 + ((33 × (3 × 33 − 3)) + 3/3) := (44 − 4)/4 × ((4/4 + 44 ) + 4) := 4 + ((4 × (4/4 + 4)4 ) + 444/4) := (4 × (4 × (4 × (44 − 4) + 4))) − 4 := 5 + ((5 × ((55 − 5)/(5/5 + 5))) + 5) := 5 × (555 − ((5 + 5)/5)5 ) := 55 + (55 − (555 + 5)) := 6 + (((6 × (6 × (66 + 6))) + 6) + 6) := 6 + (((6 × (6 × (66 + 6))) + (66/6)) + 6) := ((6 + 6)/6)6 + (6 × ((6 × (66 + 6)) − 6)) := 777/7 + (7 × (7 × 7 × 7 + 7 + 7)) := 7 + ((((7 + 7)/7 + 7 × 7)(7+7)/7 ) + 7) := 7 + ((7 × (7 × 77 − 7)) − 7777/7) := (88 − 8/8) × ((88 + 88)/8 + 8) := 888 + (8 × (8 × (8 + 8) + 88) − 8/8) := 8 × 8 + (((8 × 8 × (88 − 8)) − 8)/((8 + 8)/8)) := (9/9 + 9) × (9 × (9 + 9) + 99) := (9 × (9 × 9 − (9 + 9))) + (((9 + 9)/9)99/9 ) := 9/9 + ((9 × (99 + 9 × 9)) + 999) Ï 2611 := 111 + (((11 − 1)1+1 /(1 + 1))1+1 ) Ï 2616 := (1 + 1) × ((1 + 11) × (111 − 1 − 1)) Ï 2621 := 1 + (1 + 1) × (1 + 11 × (111+1 − 1 − 1)) := 222/2 + (2 × (22 + 2) + 2)2 := (22 + 2) × (222/2 − 2) := 2 + ((22 × ((22/2)2 − 2)) + 2/2) := 3 + ((3 − 3/3) × ((33/3)3 − 33 )) := 33 + ((33 × (3 × 33 − 3)) − 3) := ((33 − 3/3) × (3 × 33 + 3/3)) − 3 := 444/4 + (4 × (4/4 + 4)4 ) := 4 × 4 + ((44 + 4) × (44 − 4)/4) := 44 + ((((4 − 4/4) + 4)4 ) + 4 × 44) := 55 + ((555 − 55 )/5) := 5 + (((555 − 55 )/5) + 55 ) := 5 + ((((555 − 55 )/5) + 55 ) + 5) := 6 + ((((6 × (6 × (66 + 6))) + 6/6) + 6) + 6) := (6 + 6) × (6 × 6 × 6 + (6 + 6)/6) := (6 × ((6 × (66 + 6)) + 6)) − 6/6 − 6 := 7 + ((7 × (7 × (7 × 7 − 7) + 77)) + 7) := 7 × 7 × (7 × 7 + 7) − ((7 + 7)/7)7 := 777 + (((7 + 7 + 7)/7)7 − 7 × 7 × 7) := 8 + ((88/8 + 8) × ((8 × (8 + 8) + 8/8) + 8)) := 888 + 8 × (8 × (8 + 8) + 88) := 8 × 8 × 8 + ((88/8 + 8) × 888/8) := 9/9 + ((9/9 + 9) × (9 × (9 + 9) + 99)) := 9 × 9 × 9 + (((9 − 9/9) + 9) × 999/9) := (9 + 9)/9 + ((9 × (99 + 9 × 9)) + 999) Ï 2612 := 11 + ((1 + ((11 − 1)1+1 /(1 + 1)))1+1 ) 2+2 Ï 2617 := 1 + ((1 + 1) × ((1 + 11) × (111 − 1 − 1))) 2 Ï 2622 := (1 + (11 + 11)) × (1 + 1 + 1 + 111) := (22 × ((22/2) − 2)) − 2/2 := (22 − 2)2 + 2222 := 3 + ((3 × (33 × 33 )) − ((3/3 + 3)3 )) := (3 + 3)3 + (((3/3 + 3) + 3)3/3+3 ) := 3 + ((33 × (3 × 33 − 3)) + 33 ) := 4 + (4 × (((4 + 4) × (4 − 4/4)4 ) + 4)) := 4 + (((((4 − 4/4) + 4)4 ) − 44) + 44 ) := (4 × (4 × (4 × (44 − 4) + 4))) − (4 + 4)/4 := 55 + (((555 − 55 ) + 5)/5) := 5 + ((((555 − 55 ) + 5)/5) + 55 ) := 55 + (((555 − 55 ) + 55)/5) := 6 + ((((6 × (6 × (66 + 6))) + ((6 + 6)/6)) + 6) + 6) := (6 × ((6 × (66 + 6)) + 6)) − 66/6 := (6 × ((6 × (66 + 6)) + 6)) − 6 := 7 + (((7 × (7 × (7 × 7 − 7) + 77)) + 7/7) + 7) := (7 × (7 × (7 × 7 + 7) − 7)) − 7/7 − 77 := (7 × 7 − 77/7) × (77 − (7/7 + 7)) := 8 + (((8 × 8 × (88 − 8)) + 88)/((8 + 8)/8)) := 8/8 + (8 × (8 × (8 + 8) + 88) + 888) := 8 × 8 × 8 + ((88 × (8 + 8 + 8)) − ((8 + 8)/8)) := 9 + ((9 − 9/9) × ((9 + 9) × (9 + 9) + ((9 + 9)/9))) := 9 × 9 × 9 + ((9 + 9) × 99 + 999/9) := 22 + ((2 × (2 + 2 + 2) ) − 2) := 9 + (((9 + 9) × ((9 + 9) × (9 − 9/9))) + (99/9)) 184 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2623 := 1 + ((1 + (11 + 11)) × (1 + 1 + 1 + 111)) := 22 + (((2 × (22 + 2) + 2/2) + 2)2 ) Ï 2628 := (1 + 11) × (((1 + 1) × (111 − 1)) − 1) := (2 + 2 + 2) × ((2 × (222 − 2)) − 2) 3 Ï 2633 := (1 + 1 + 1 + 11)1+1+1 − 111 := 2 + ((22/2 × ((222 − 2)/2 − 2)) + 2) := ((33/3 + 3)3 ) − 333/3 := ((3 − 3/3) × ((33/3)3 − 3)) − 33 := (3 × 3 + 3) × ((3 + 3) + 3) := (44 − 4/4) × ((44 + 4)/4 − 4) := 4 + (4 × (4 × (4 × (44 − 4) + 4))) 5 := 4 + (44/4 × (44 − (4 × 4 + 4/4))) 5 := 5 + (55/5 × (((5 − (5 + 5)/5)5 ) − 5)) := (5 − 5/5) × (((5 + 5)/5) + 5 /5) := 5 + ((5 − 5/5) × (((5 + 5)/5)5 + 55 /5)) := 6/6 + ((6 × ((6 × (66 + 6)) + 6)) − 6) := 6 × ((6 × (66 + 6)) + 6) := 6 + ((6 × ((6 × (66 + 6)) + 6)) − 6/6) := 7 + (7 × 7 × (7 × 7 + 7) − ((7 + 7)/7) ) := (77/7 + 7) × (7 × (7 + 7 + 7) − 7/7) := 7 × 7 × (7 × 7 + 7) − 777/7 := 8 × 8 × 8 + ((88 × (8 + 8 + 8)) − 8/8) := 8 × 8 + (((8 × 8 × (88 − 8)) + 8)/((8 + 8)/8)) := 8 + (((88 × (8 + 8 + 8)) + 8 × 8 × 8) + 8/8) := 99 × (9 + 9 + 9) − ((9 × 99 + 9)/(9 + 9)) := 9 + ((9 × (99 + 9 × 9)) + 999) := 99 × (9 + 9 + 9) + ((9 − 9 × 9 × 9)/(9 + 9)) 7 Ï 2624 := (1 + 1)11 + (((1 + 1) × (1 + 11))1+1 ) Ï 2629 := 11 × (((1 + 1) × (111+1 − 1)) − 1) Ï 2634 := 1 + ((1 + 1 + 1 + 11)1+1+1 − 111) := 222/2 + ((22 + 2)2 ) := 22/2 × ((222 − 2)/2 − 2) := (2 + 2 + 2) × (((22 − 2/2)2 ) − 2) := (33 − 3/3) × (3 × 33 + 3/3) := 3/3 + ((3 × 3 + 3) × ((3 + 3)3 + 3)) := 3 + (((3 × 3 + 3) × ((3 + 3)3 + 3)) + 3) 4 := 44/4 × (4 − (4 × 4 + 4/4)) := 4 × (4 × (4 × (44 − 4) + 4)) := ((4 + 4)/4 + 4) × (444 − (4/4 + 4)) 5 := 55 + (55 − (555 + 5/5)) := 5 + ((55 − (555 + 5/5)) + 5 ) := 55 + (((55 − 5555)/5) − 5) := ((6 + 6)/6)6 × (6 × 6 − 6/6 + 6) := 6/6 + (6 × ((6 × (66 + 6)) + 6)) := 6 + (6 × ((6 × (66 + 6)) + 6)) := (7/7 + 7) × (7 × 7 × 7 − (7/7 + 7 + 7)) := 7 + ((7 × 7 − 77/7) × (77 − (7/7 + 7))) := ((7 − 777)/7) + 7 × 7 × (7 × 7 + 7) := 8 × (((8 + 8) × (8 + 8) + 8 × 8) + 8) := 88/8 × (888/8 + 8 × (8 + 8)) := (88/8 − 8) × ((8 − 88)/8 + 888) := (9/9 + 9 × 9) × (((99 + 99 + 9)/9) + 9) := 9 + (((9 × (99 + 9 × 9)) + 999) + 9/9) := (9 + 9) × (9 × (9 + 9) − 9) − (999/9 + 9) Ï 2625 := 1 + ((1 + 1)11 + (((1 + 1) × (1 + 11))1+1 )) Ï 2630 := 1 + (11 × (((1 + 1) × (111+1 − 1)) − 1)) Ï 2635 := ((1 + 1) × (111+1+1 − (1 + 1 + 11))) − 1 := 2/2 + (222/2 + ((22 + 2)2 )) := 2 + ((2 + 2 + 2) × ((2 × (222 − 2)) − 2)) := (2/2 + 2 + 2) × ((22 + 2/2)2 − 2) := 33 + (33 × (3 × 33 − 3)) := 3 + (((3 + 3)3/3+3 ) + (33/3)3 ) := ((3 − 3/3) × (33/3)3 ) − 33 := 4/4 + (4 × (4 × (4 × (44 − 4) + 4))) := (4 − 44)/4 + (44 × (4 × 4 + 44)) := (44 × (4 × 4 + 44)) − (4/4 + 4) := 5 × (5 × (5 × (5 × 5 − 5) + 5)) := 5 + ((55 − 555) + 55) := 5 + (((55 − 555) + 55) + 5) := (6 × 6 − 6/6) × (666/6 − 6 × 6) := (6 + 6)/6 + (6 × ((6 × (66 + 6)) + 6)) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + 6/6) := 7 + (77 × (7 × 7 − (7/7 + 7 + 7))) := 7 + ((7 × 7 × (7 × 7 + 7) − ((7 + 7)/7)7 ) + 7) := (7 × (7 × (7 × 7 + 7) − (7 + 7))) − 77/7 := 8/8 + ((88 × (8 + 8 + 8)) + 8 × 8 × 8) := (((8 + 8)/8) + 8) × (((8 + 8) × (8 + 8) − 8/8) + 8) := 8 × 8 × 8 + ((88 × (8 + 8 + 8)) + (88/8)) := 9 + ((((9 − 9/9) + 9) × 999/9) + 9 × 9 × 9) := 99/9 + ((9 × (99 + 9 × 9)) + 999) := (9 + 9 + 9) × (99 − 9/9) − 99/9 Ï 2626 := (1 + 1) × (1 + 1 + 11) × (1 + (11 − 1)1+1 ) Ï 2631 := 1 + (1 + (11 × (((1 + 1) × (111+1 − 1)) − 1))) := 2 + (22/2 × ((222 − 2)/2 − 2)) := 2 + (222/2 + ((22 + 2)2 )) Ï 2636 := (1 + 1) × (111+1+1 − (1 + 1 + 11)) := 2 × ((2 + 2 + 2)2+2 + 22) 3 := 3/3 + ((33 × (3 × 33 − 3)) + 33) := 3 + ((3 × 3 + 3) × ((3 + 3) + 3)) := ((33/3 + 3)3 ) − (3 × (33 + 3)) := (4 + 4)/4 + (4 × (4 × (4 × (44 − 4) + 4))) := 444 + ((4 − 4/4)4+4−4/4 ) := (44 × (4 × 4 + 44)) − 4 := 55 + ((5 − 555) + 5/5) := 5 + (((5/5 − 555) + 55) + 55 ) := 5 × 5 + (((555 − 55 )/5) + 55 ) := (6 × ((6 × (66 + 6)) + 6)) − (6 + 6)/6 := 666/6 + ((6 + 6) × (6 × 6 × 6 − 6)) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + ((6 + 6)/6)) := 7 × 7 × (7 × 7 + 7) − (777/7 + 7) := ((7 + 7) × (777/7 + 77)) − 7/7 := 7 × (77 + 7) + (((7 + 7)/7)77/7 ) := 8 + ((888/8 + 8) × (88 + 88)/8) := (88/8 − 8) × (888 − 88/8) := ((8 × (8 × (88 − 8) + 8)) + 88)/((8 + 8)/8) := (((9 − 9/9) + 9) + 9) × ((9 + 9)/9 + 99) := (((9 + 9 + 9)/9) × (9 × 99 − (99/9))) − 9 := (9 + 9 + 9) × (99 − 9/9) − 9/9 − 9 5 Ï 2627 := ((1 + 11) × (((1 + 1) × (111 − 1)) − 1)) − 1 Ï 2632 := (1 + 1 + 1 + 11)1+1+1 − (1 + 111) Ï 2637 := ((1 + 1) × (111+1+1 − (1 + 11))) − 1 := (22/2 × ((222 − 2)/2 − 2)) − 2 := 2 × (((2 + 2 + 2)2+2 − 2) + 22) := 2/2 + (2 × ((2 + 2 + 2)2+2 + 22)) := (33/3)3 + ((3 + 3)3/3+3 ) := 3 + (((3 × 3 + 3) × ((3 + 3)3 + 3)) + 3/3) := 3 × ((33 × 33 ) − (3 × 3 + 3)) := (44 × (4 × 4 + 44)) − 4 − 4 := 4/4 + (44 × (4 × 4 + 44) − 4) 4 := 4 + ((44 − 4/4) × ((4 + 4)/4 − 4)) 5 5 := 55 + (((5 + 5)/5 − 555) + 5 ) := 5 + ((((5 + 5)/5 − 555) + 55) + 5 ) := 5 × 5 + ((((555 − 55 ) + 5)/5) + 55 ) := (6 × ((6 × (66 + 6)) + 6)) − 6/6 := 6 + ((6 × ((6 × (66 + 6)) + 6)) − ((6 + 6)/6)) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + (6 × 6/(6 + 6))) := (7 + 7) × (777/7 + 77) := ((7 + 7)/7 + 7) × (7 × (7 × 7 − 7) − 7/7) := 8 + ((88/8 + 8 + 8) × ((8/8 + 88) + 8)) := 8 + ((88 × (8 + 8 + 8)) + 8 × 8 × 8) := (88/8 − 8) × (888 − 8/8 − 8) := 9 + (((9 × (99 + 9 × 9)) − 9/9) + 999) := 99 × (9 + 9 + 9) − ((9 × 9 × 9 + 9)/(9 + 9)) := (9 + 9 + 9) × (99 − 9/9) − 9 7 := ((7 + 7)/7) + (7 × (7 × 7 × 7 + 7 + 7)) 185 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2638 := (1 + 1) × (111+1+1 − (1 + 11)) Ï 2643 := 1 + (1 + 1) × (1 + 11 × (111+1 − 1)) Ï 2648 := (1 + 1) × (111+1+1 − 1) − 1 − 11 := 2 + (2 × ((2 + 2 + 2)2+2 + 22)) := 2 + (((22 × (222 /2 − 2)) + 2)/2) := 2 + ((2 + 2 + 2) × ((22 − 2/2)2 )) := 3 + (((3 − 3/3) × (33/3)3 ) − 33 ) := 3 + (33 × (3 × 33 − 3/3)) := 3 + (((33/3 + 3)3 ) − 3 × 33) := (44 × (4 × 4 + 44)) − (4 + 4)/4 := 4 + (44 × (4 × 4 + 44) − 4/4) := 4 + (44 × (4 × 4 + 44) + 4) := 55 + ((55 − (5555 + 5))/5) := (5 × (555 − 5 × 5)) − ((5 + 5)/5 + 5) := (5 × (555 − 5 × 5)) − (5 + 5)/5 := ((66 − 6)/6) + (6 × ((6 × (66 + 6)) + 6)) := ((6 × (666 + 6 × 6 × 6)) − 6)/((6 + 6)/6) := 66 + ((6 × (6 × (66 + 6))) + ((6 − 66)/6)) 77/7 := (7 + 7)/7 + (7 × (7 × (7 × 7 + 7) − (7 + 7))) := (7 × (7 × (7 × 7 + 7) − (7 + 7))) − (7/7 + 7) := 7 + ((((7 + 7)/7) := ((8 + 8)/8) × (88 × (8 + 8) − (8/8 + 88)) := (88/8 − 8) × ((888 − 8) + 8/8) := 8 + (88 × ((88 + 88)/8 + 8)) := 9/9 + ((9 + 9 + 9) × (99 − 9/9) − 9) := ((9 + 9 + 9)/9) × (9 × 99 − (9/9 + 9)) := (9 + 9)/9 + (9 + 9 + 9) × (99 − 9/9) Ï 2639 := ((1 + 1) × 11 × (111+1 − 1)) − 1 ) + 7 × (77 + 7)) Ï 2644 := (1 + 1) × (1 + 1 + 11 × (111+1 − 1)) Ï 2649 := (1 + 1) × (111+1+1 − 1) − 11 := ((22 × (222 /2 − 2)) − 2)/2 := 2 × (((2 + 2 + 2) × (222 − 2)) + 2) := (22/2 × (222 − 2)/2) − 2 := (3 × (33 × 33 )) − 3/3 − 33 := (3 − 3/3) × ((33/3)3 − 3 × 3) := 3 + (3 × (3 × (3 × 3 × 33 − 3))) := (44 × (4 × 4 + 44)) − 4/4 := 4 + (44 × (4 × 4 + 44)) := 44 + ((((4 − 4/4) + 4)4 ) − (4 + 4)) := 55 + ((55 − 5555)/5) := (5 × (555 − 5 × 5)) − (5/5 + 5) := (5 × (555 − 5 × 5)) − 5/5 := 66/6 + (6 × ((6 × (66 + 6)) + 6)) := (6 − ((6 + 6)/6)) × ((666 − 6) + 6/6) := (66 × (6 × 6 + 6)) − ((666/6 + 6) + 6) := (7 × (7 × (7 × 7 + 7) − (7 + 7))) − 7 := (7 × (7 × (7 × 7 + 7) − (7 + 7))) − (7 + 7)/7 := 7 × 77 + (((7 + 7 + 7)/7)7 − 77) := (88 × ((88 + 88)/8 + 8)) − 8/8 := 88 + (((8 × 8 × (88 − 8)) − 8)/((8 + 8)/8)) := 8 + ((88 × ((88 + 88)/8 + 8)) + 8/8) := (99/9 + 9 + 9) × ((9/9 + 9 × 9) + 9) := 99 × (9 + 9 + 9) − (99/9 + 9 + 9) := ((9 + 9 + 9)/9) × ((9 × 99 − 9) + 9/9) Ï 2640 := (1 + 1) × 11 × (111+1 − 1) Ï 2645 := 1 + (1 + 1) × (1 + 1 + 11 × (111+1 − 1)) Ï 2650 := (1 + 1) × 111+1+1 − 1 − 11 := 2 × ((2 + 2 + 2) × (222 − 2)) := (2/2 + 2 + 2) × ((22 + 2/2)2 ) := ((22 × (222 − 2)/2) − 2)/2 := 33 × (3 × 33 − 3/3) := ((33/3 + 3)3 ) − 3 × 33 := (3 − 3/3) × ((33/3)3 − (3 + 3)) := 44 × (4 × 4 + 44) := 4 + (44 × (4 × 4 + 44) + 4/4) := 4 + (((44 − 4)/4) × (44 − (4 + 4)/4)) := (5 + 5) × (5 × 55 − (55/5)) := (5 × (555 − 5 × 5)) − 5 := 5 × (555 − 5 × 5) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + 6) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + (66/6)) := ((6 + 6)/6)6 + ((6 × (6 × (66 + 6))) − 6) := (7 × 7 − 7/7) × ((7 × 7 − 7/7) + 7) := (7 × (7 × (7 × 7 + 7) − (7 + 7))) − 7/7 := 7 × 7 + (((7 + 7)/7 + 7 × 7)(7+7)/7 ) := 88 × ((88 + 88)/8 + 8) := 8 + ((88/8 − 8) × (888 − 8/8 − 8)) := (((8 + 8)/8) + 8) × (((8 + 8) × (8 + 8) + 8/8) + 8) := ((9 + 9 + 9)/9) × (9 × 99 − (99/9)) := (9 + 9 + 9) × (99 − 9/9) − 9/9 := (9/9 + 9) × ((((9 + 9)/9)9−9/9 ) + 9) Ï 2641 := 1 + ((1 + 1) × 11 × (111+1 − 1)) := ((22 × (222 /2 − 2)) + 2)/2 3 Ï 2646 := (1 + 1) × (1 + 1 + 1 + 11 × (111+1 − 1)) 2 Ï 2651 := 11 × (((1 + 1) × 111+1 ) − 1) := (2 + 2 + 2) × ((22 − 2/2) ) := 22/2 × (222 − 2)/2 := 33/3 × (((33+3 + 3)/3) − 3) := 3/3 + (33 × (3 × 3 − 3/3)) := 3 × (3 × (3 × 3 × 33 − 3)) := 4/4 + (44 × (4 × 4 + 44)) := ((44 − 4)/4) × (44 − (4 + 4)/4) := 55 + (55/5 × (55/5 − 55)) := 5/5 + ((5 × (555 − 5 × 5)) − 5) := 5/5 + (5 × (555 − 5 × 5)) := 6 + (((6 × ((6 × (66 + 6)) + 6)) + 6/6) + 6) := 666 + 66 × (6 × 6 − 6) := 66 + ((6 × (6 × (66 + 6))) − (6/6 + 6)) := 7 + (((7 − 777)/7) + 7 × 7 × (7 × 7 + 7)) := 7 × (7 × (7 × 7 + 7) − (7 + 7)) := 8/8 + (88 × ((88 + 88)/8 + 8)) := ((8 + 8)/8) × (((88/8)88/8−8 ) − 8) := 8 + ((88/8 − 8) × ((888 − 8) + 8/8)) := 9 × 9 + ((9/9 + 9) × (((9 + 9)/9)9−9/9 )) := (9 + 9 + 9) × (99 − 9/9) := 99/9 × (9 × (9 + 9 + 9) − ((9 + 9)/9)) Ï 2642 := (1 + 1) × (1 + 11 × (111+1 − 1)) := 44/4 + (44 × (4 × 4 + 44)) Ï 2647 := (1 + 1) × (111+1+1 − 1 − 1) − 11 2 := 7 + ((7 × (7 × (7 × 7 + 7) − (7 + 7))) − ((7 + 7)/7)) Ï 2652 := (1 + 11) × ((1 + 1) × 111 − 1) := 2 + (2 × ((2 + 2 + 2) × (222 − 2))) := 2 + ((2/2 + 2 + 2) × ((22 + 2/2) )) := (2 + 2 + 2) × (2 × 222 − 2) := ((33/3 + 3)3 ) − (3 × 33 + 3) := 3/3 + (3 × (3 × (3 × 3 × 33 − 3))) := (33 − 3/3) × (3 × 33 + 3) := (4 + 4)/4 + (44 × (4 × 4 + 44)) := 4 + ((44 × (4 × 4 + 44) − 4/4) + 4) := 4 + ((44 × (4 × 4 + 44) + 4) + 4) := 55 + (((5/5 + 5) /(5 − (5 + 5)/5)) − 5) := 55 + ((5/5 + 5)5 /(5 − (5 + 5)/5)) := (5 + 5)/5 + (5 × (555 − 5 × 5)) := 6 + (((6 × ((6 × (66 + 6)) + 6)) + ((6 + 6)/6)) + 6) := 66 + ((6 × (6 × (66 + 6))) − (66/6)) := 66 + ((6 × (6 × (66 + 6))) − 6) 5 := 7 + ((7 × (7 × (7 × 7 + 7) − (7 + 7))) − (77/7)) := 7/7 + (7 × (7 × (7 × 7 + 7) − (7 + 7))) := 7 + ((7 × (7 × (7 × 7 + 7) − (7 + 7))) − 7/7) := (8 + 8)/8 + (88 × ((88 + 88)/8 + 8)) := 8888/8 + 8 × 8 × (8 + 8 + 8) := 88 + (((8 × 8 × (88 − 8)) + 8)/((8 + 8)/8)) := 99 × (9 + 9 + 9) − (((99 + 99)/9) + 9) := 9/9 + (9 + 9 + 9) × (99 − 9/9) := (((9 − 9/9) + 9) + 9) × (999/9 − 9) 186 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2653 := 1 + ((1 + 11) × ((1 + 1) × 111 − 1)) Ï 2658 := (1 + 1) × (111+1+1 − 1 − 1) Ï 2663 := 1 + ((1 + 1) × 111+1+1 ) := 2 + (22/2 × (222 − 2)/2) := 2 × ((22/2)2/2+2 − 2) := 2/2 + (22 × (22/2)2 ) := (3 × ((33 × 33 ) − 3)) − 33/3 := 3 + (3 × ((33 × 33 ) − (3 + 3))) := ((33/3 + 3)3 ) − 3 × 33 := 44 + ((((4 − 4/4) + 4)4 ) − 4) := 4/4 + ((((4 − 4/4) + 4)4 ) + 44 ) := (444 × ((4 + 4)/4 + 4)) − 4/4 := 5 + ((5 × (555 − 5 × 5)) − ((5 + 5)/5)) := 5 × 555 − ((555 + 5)/5 + 5) := 5 × 555 − (555 + 5)/5 := ((6 + 6) × (6 × 6 × 6 + 6)) − 66/6 := 66 + (6 × (6 × (66 + 6))) := ((6 + 6) × (6 × 6 × 6 + 6)) − 6/6 := 7 + (7 × (7 × (7 × 7 + 7) − (7 + 7))) := (7 − 7/7) × (7 × (7 × 7 + 7 + 7) + ((7 + 7)/7)) := 7 + ((7/7 + 7) × (7 × 7 × 7 − (77/7))) := ((8 + 8 + 8) × 888/8) − 88/8 := (88/8 − 8) × (888 − ((8 + 8)/8)) := ((8 + 8 + 8) × 888/8) − 8/8 := 99 × (9 + 9 + 9) − (99/9 + 9) := 9 + (((9 + 9 + 9)/9) × ((9 × 99 − 9) + 9/9)) := 99 × (9 + 9 + 9) − 9/9 − 9 Ï 2654 := 1 + (1 + ((1 + 11) × ((1 + 1) × 111 − 1))) Ï 2659 := (1 + 1) × (111+1+1 − 1) − 1 Ï 2664 := (1 + 1) × (1 + 111+1+1 ) := 2 + ((2 + 2 + 2) × (2 × 222 − 2)) := (22 × (22/2)2 ) − 2/2 − 2 := 2 + (22 × (22/2)2 ) := (3 × (3 − 33)) + ((33/3 + 3)3 ) := ((3 − 3/3) × (33/3)3 ) − 3 := 3 × ((33 × 33 ) − 3) := 4/4 + (((((4 − 4/4) + 4)4 ) − 4) + 44 ) := 4 + ((44/4 + 4) × (4 × 44 + 4/4)) := 444 × ((4 + 4)/4 + 4) := 5 + ((5 × (555 − 5 × 5)) − 5/5) := 5 × 555 − (555/5 + 5) := (5 × 5 − 5/5) × 555/5 := (6 − 66)/6 + ((6 + 6) × (6 × 6 × 6 + 6)) := 66 + ((6 × (6 × (66 + 6))) + 6/6) := (6 + 6) × (6 × 6 × 6 + 6) := 7 + ((7 × (7 × (7 × 7 + 7) − (7 + 7))) + 7/7) := 7 × 7 × (7 × 7 + 7) − (7/7 + 77 + 7) := (7/7 + 7) × (((7 − 77)/7) + 7 × 7 × 7) := (8 − 88)/8 + ((8 + 8 + 8) × 888/8) := ((88/8 − 8) × (888 + 8/8)) − 8 := (8 + 8 + 8) × 888/8 := 99 × (9 + 9 + 9) − (9/9 + 9 + 9) := 9 + (9999/9 + (9 × (9 × (9 + 9) + 9))) := 99 × (9 + 9 + 9) − 9 Ï 2655 := (1 + 1) × (1 + 1 + 111+1+1 ) − 11 := 2 + ((22/2 × (222 − 2)/2) + 2) Ï 2660 := (1 + 1) × (111+1+1 − 1) Ï 2665 := 1 + (1 + 1) × (1 + 111+1+1 ) 2 := (22 × (22/2) ) − 2 := ((222 × (22 + 2)) + 2)/2 3 := 3 × ((33 × 3 ) − (3 + 3)) := (3 − 3/3) × ((33/3) − 3/3) := 3 + ((3 − 3/3) × (33/3)3 ) := (44/4 + 4) × (4 × 44 + 4/4) := 4 × (((4/4 + 4)4 − 4) + 44) := 4 + (((((4 − 4/4) + 4)4 ) + 44 ) + 4) := 5 + (5 × (555 − 5 × 5)) := 5 + ((5 × (555 − 5 × 5)) + 5) := 5 × 555 − (55 + 55) := (66 × (6 × 6 + 6)) − (666/6 + 6) := (6 − ((6 + 6)/6)) × (666 − 6/6) := 6/6 + ((6 + 6) × (6 × 6 × 6 + 6)) := (7 − ((7 + 7)/7)) × (7 × 77 − (7/7 + 7)) := (77 − 7) × (7 × 7 − 77/7) := (7 − ((7 + 7)/7)) × ((7 × 77 − 7) + 7/7) := (8 − 8/8 + 8) × ((88 + 88) + 8/8) := (8 − 8/8) × ((8 × (88 + 8) − 8)/((8 + 8)/8)) := 8/8 + ((8 + 8 + 8) × 888/8) := 99 × (9 + 9 + 9) − (9 + 9) := 99 × (9 + 9 + 9) − ((99 + 9 + 9)/9) := 9/9 + (99 × (9 + 9 + 9) − 9) 3 Ï 2656 := (1 + 1) × (111+1+1 − 1 − 1 − 1) := 2 × (2 × (((2/2 + 2) × 222) − 2)) 3 := (3 − 3/3) × ((33/3) − 3) Ï 2661 := (1 + 1) × 111+1+1 − 1 Ï 2666 := (1 + 1) × (1 + 1 + 111+1+1 ) 2 := (22 × (22/2) ) − 2/2 := 2 + ((22 × (22/2)2 ) + 2) 3 := (3 × ((33 × 3 ) − 3)) − 3 := 3 + (((33/3 + 3)3 ) − 3 × 33 ) 4 4 := 4 × ((44 × (44/4 + 4)) + 4) := 4 + ((((4 − 4/4) + 4) ) + 4 ) := 5 + ((5 × (555 − 5 × 5)) + 5/5) := 55/5 + (5 × (555 − 5 × 5)) := 5 + ((5 × (555 − 5 × 5)) + (55/5)) := ((6 + 6)/6) + (6 × (6 × (66 + 6))) := (66 × (6 × 6 + 6)) − 666/6 := (6 + 6)/6 + ((6 + 6) × (6 × 6 × 6 + 6)) := (7/7 + 7) × (7 × 7 × 7 − (77/7)) := 7/7 + ((77 − 7) × (7 × 7 − 77/7)) := 7 × 7 × (7 × 7 + 7) − 7/7 − 77 := ((8 + 8 + 8) × 888/8) − 8 := (88/8 − 8) × (888 − 8/8) := (8 + 8)/8 + ((8 + 8 + 8) × 888/8) := 9/9 + (99 × (9 + 9 + 9) − (9 + 9)) := 99 × (9 + 9 + 9) − (99 + 9)/9 := (9 + 9)/9 + (99 × (9 + 9 + 9) − 9) 6 Ï 2657 := (1 + 1) × (111+1+1 − 1 − 1) − 1 2 := (22 × (22/2) ) − (2/2 + 2 + 2) 3 := (((3 + 3) × ((33/3) − 3)) + 3)/3 4 4 := 4 + (((4 − 4/4) + 4) ) := 5 + ((5 × (555 − 5 × 5)) + ((5 + 5)/5)) := (44 − 4/4) × (44 − 4 − 4)/4 Ï 2662 := (1 + 1) × 111+1+1 := 22 × (22/2) Ï 2667 := 1 + (1 + 1) × (1 + 1 + 111+1+1 ) 2 := 2 + (((222 × (22 + 2)) + 2)/2) := (3 − 3/3) × (33/3)3 := 3 + (3 × ((33 × 33 ) − 3)) := (4 + 4)/4 × ((44/4) 4−4/4 := (5 + 5)/5 × ((55/5) 5−(5+5)/5 ) := 4 + ((444 × ((4 + 4)/4 + 4)) − 4/4) ) := 66 + ((6 × (6 × (66 + 6))) − 6/6) := ((6 + 6) × (6 × 6 × 6 + 6)) − (6 + 6)/6 := 77/7 + (7 × (7 × (7 × 7 + 7) − (7 + 7))) := 7 × 7 × 77 − 7777/7 := 5 + ((5 × (555 − 5 × 5)) + ((55 + 5)/5)) := 6 + ((66 × (6 × 6 + 6)) − 666/6) := 7 × 7 × (7 × 7 + 7) − 77 88/8−8 := 8/8 + (((8 + 8 + 8) × 888/8) − 8) := ((8 + 8)/8) × ((88/8) := (9 + 9)/9 + (99 × (9 + 9 + 9) − (9 + 9)) := 99 × (9 + 9 + 9) − 99/9 187 ) := (88/8 − 8) × (888 + 8/8) := ((9 + 9 + 9)/9) + (99 × (9 + 9 + 9) − 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2668 := (1 + 1) × (1 + 1 + 1 + 111+1+1 ) Ï 2673 := 11 + ((1 + 1) × 111+1+1 ) 2 Ï 2678 := 1 + (1 + ((1 + 11) × (1 + (1 + 1) × 111))) := 22/2 × (22 + 2)/2 := 2 + (2 + 2 + 2) × (2 × 222 + 2) := (3 − 3/3) × ((33/3) + 3) := 3 × (33 × 33 ) := 3 + (((3 × (33 × 33 )) − 3/3) + 3) := 4 + (444 × ((4 + 4)/4 + 4)) := (4/4 + 4)4 + 44 × (4 + 4) := (4 + 4)/4 + (4 × ((4/4 + 4)4 + 44)) := (55/5 × ((5 − (5 + 5)/5)5 )) − 5 := 55/5 × ((5 − (5 + 5)/5)5 ) := 5 + (55/5 × ((5 − (5 + 5)/5)5 )) := (6 − ((6 + 6)/6)) × (666 + 6/6) := 66/6 × ((6 × 6/(6 + 6))6−6/6 ) := 6 + ((((6 + 6) × (6 × 6 × 6 + 6)) + ((6 + 6)/6)) + 6) := 7/7 + (7 × 7 × (7 × 7 + 7) − 77) := 7 + (7 × 7 × (7 × 7 + 7) − (7/7 + 77)) := 77 + (((7 + 7)/7 + 7 × 7)(7+7)/7 ) := 8/8 + ((88/8 − 8) × (888 + 8/8)) := 8 + (((8 + 8 + 8) × 888/8) + 8/8) := 8 + ((88/8 − 8) × (888 + ((8 + 8)/8))) := ((9 − 99)/(9 + 9)) + 99 × (9 + 9 + 9) := 99 × (9 + 9 + 9) := 99 × (9 + 9 + 9) + ((9 × 9 + 9)/(9 + 9)) := 2 × (((2 + 2 + 2) × 222) + 2) 3 Ï 2669 := 1 + (1 + 1) × (1 + 1 + 1 + 111+1+1 ) Ï 2674 := 1 + (11 + ((1 + 1) × 111+1+1 )) := 2 + ((((222 × (22 + 2)) + 2)/2) + 2) := (2 + 2 + 2) × (2 × 222 + 2) − 2 := 2 + (((22/2 × (222 + 2)/2) + 2) + 2) := (3 × (33 × 33 )) − (3/3 + 3) := 3/3 + (3 × (33 × 33 )) := 3 + ((3 × (33 × 33 )) + 3) := (4/4 + 4)4 + (44 × (4 + 4) − 4) := 4 + (((4 + 4)/4 + 4) × (444 + 4/4)) := 4 + ((4 × ((4/4 + 4)4 + 44)) − 4/4) := 5 + ((5 × 5 − 5/5) × 555/5) := (5 − 5/5)5 + (55 × (5 × 5 + 5)) := 5 + ((55 × (5 × 5 + 5)) + (5 − 5/5)5 ) := 6 + (((6 + 6) × (6 × 6 × 6 + 6)) − 6/6) := 6 + ((6 − ((6 + 6)/6)) × (666 + 6/6)) := 6 + ((66/6) × ((6 × 6/(6 + 6))6−6/6 )) := 7 + (7 × 7 × 77 − 7777/7) Ï 2679 := 1 + (1 + (1 + ((1 + 11) × (1 + (1 + 1) × 111)))) := 7 + (7 × 7 × (7 × 7 + 7) − 77) := (7 × 7 − (7 + 7)/7) × (7/7 + 7 × 7 + 7) := 8 + ((88/8 − 8) × (888 − 8/8)) := 8 + (((8 + 8 + 8) × 888/8) + ((8 + 8)/8)) := ((8 + 8) × (88 − 8 + 88)) − (8/8 + 8) := ((9 − 9 × 9)/(9 + 9)) + 99 × (9 + 9 + 9) := 9/9 + 99 × (9 + 9 + 9) := 9 + (((9 + 9 + 9)/9) × (9 × 99 − 9/9)) Ï 2670 := 11 + (((1 + 1) × (111+1+1 − 1)) − 1) Ï 2675 := 11 + (1 + 1) × (1 + 111+1+1 ) Ï 2680 := (1 + 1) × (11 + 111+1+1 − 1 − 1) := 2 + (2 × (((2 + 2 + 2) × 222) + 2)) := 2 + (22/2 × (222 + 2)/2) := 2 × ((2 + 2 + 2)2+2 + 2 × 22) := (3 × (33 × 33 )) − 3 := 3 + ((3 × (33 × 33 )) − 3/3) := 3 + (((3 × (33 × 33 )) + 3/3) + 3) := ((4 + 4)/4 + 4) × (444 + 4/4) := (4 × ((4/4 + 4)4 + 44)) − 4/4 := 4 + (4 × ((4/4 + 4)4 + 44)) := (5 × (555 − 5 − 5)) − 55 := 5 × ((555 − 5 × 5) + 5) := 5 + (5 × ((555 − 5 × 5) + 5)) := 6 + ((6 + 6) × (6 × 6 × 6 + 6)) := 66/6 + ((6 + 6) × (6 × 6 × 6 + 6)) := 7 × (77 − 7) + (((7 + 7 + 7)/7)7 − 7) := (66 + 6/6) × ((6 × 6 − ((6 + 6)/6)) + 6) := 7 + ((7 × 7 × (7 × 7 + 7) − 77) + 7/7) := (7/7 + 7) × (7 × 7 × 7 − (7/7 + 7)) := (88/8 − 8) × (888 + ((8 + 8)/8)) := 8 + ((88/8 − 8) × (888 + 8/8)) := ((8 + 8) × (88 − 8 + 88)) − 8 := ((9 + 9 + 9)/9) × (9 × 99 − 9/9) := (9 + 9)/9 + 99 × (9 + 9 + 9) := 9 + (99 × (9 + 9 + 9) − ((9 + 9)/9)) Ï 2671 := 11 + ((1 + 1) × (111+1+1 − 1)) := (22/2 × (222 + 2)/2) − 2 Ï 2676 := (1 + 11) × (1 + (1 + 1) × 111) := (2 + 2 + 2) × (2 × 222 + 2) 3 := 3/3 + ((3 × (33 × 33 )) − 3) := 3 + (3 × (33 × 3 )) 4 Ï 2681 := ((1 + 1) × (11 + (111+1+1 − 1))) − 1 := 222 + ((22/2 + 2)2/2+2 ) := (3 × ((33 × 33 ) + 3)) − 3/3 := (44 × (44 − 4) + 444)/4 := 4 × ((4/4 + 4) + 44) := ((4/4 + 4)4+4/4 ) − 444 := 5/5 + ((5 × (555 − 5 − 5)) − 55) := 5/5 + (5 × ((555 − 5 × 5) + 5)) := 55 + ((5/5 − 5) × 555/5) := 6 + (((6 + 6) × (6 × 6 × 6 + 6)) + 6/6) := 6 + (((6 + 6) × (6 × 6 × 6 + 6)) + 6) := 6 + (((6 + 6) × (6 × 6 × 6 + 6)) + (66/6)) := 7 + ((7/7 + 7) × (((7 − 77)/7) + 7 × 7 × 7)) := 7 + ((7 × 7 × 77 − 7777/7) + 7) := (7 × (7 × (7 × 7 + 7) − 7)) − (7 + 7) := 8 + (((8 + 8 + 8) × 888/8) − 8/8) := ((88 + 8)/8) + ((8 + 8 + 8) × 888/8) := 8/8 + (((8 + 8) × (88 − 8 + 88)) − 8) := 99 × (9 + 9 + 9) − (9 + 9)/9 := ((9 + 9 + 9)/9) + 99 × (9 + 9 + 9) := 9 + (99 × (9 + 9 + 9) − 9/9) Ï 2672 := 11 + (((1 + 1) × 111+1+1 ) − 1) Ï 2677 := 1 + ((1 + 11) × (1 + (1 + 1) × 111)) Ï 2682 := (1 + 1) × (11 + (111+1+1 − 1)) := 2 × ((((2 + 2 + 2) × 222) + 2) + 2) := 2 + ((22/2 × (222 + 2)/2) + 2) := (2 × (22 + 2 + 2))2 − 22 := (3 × (33 × 33 )) − 3/3 := 3 + ((3 × (33 × 33 )) + 3/3) := 3 × ((33 × 33 ) + 3) := 4 × ((4 × (4 × 44 − (4 + 4))) − 4) := 4 + ((4/4 + 4)4 + 44 × (4 + 4)) := ((4 + 4)/4 + 4) × ((444 − 4/4) + 4) 5 55/5 5 := 5 + ((5/5 − 5) × (555 + 5)/5) := 55 + ((555 + 5)/5 − 555) := 6 + (((6 + 6) × (6 × 6 × 6 + 6)) + ((6 + 6)/6)) := 6 + ((((6 + 6) × (6 × 6 × 6 + 6)) + 6/6) + 6) := ((6 × 6 + 6) × ((6 + 6)/6)6 ) − 6 := (7/7 + 7) × (7 × 7 × 7 − ((7 + 7)/7 + 7)) := 7 × (77 − 7) + ((7 + 7 + 7)/7)7 := 7/7 + ((7 × (7 × (7 × 7 + 7) − 7)) − (7 + 7)) := 8 + ((8 + 8 + 8) × 888/8) := ((8 + 8) × (88 − 8 + 88)) − 88/8 := (8 − (8 + 8)/8) × (8 × (8 × 8 − 8) − 8/8) := 99 × (9 + 9 + 9) − 9/9 := 99 × (9 + 9 + 9) + ((9 × 9 − 9)/(9 + 9)) := 9 + 99 × (9 + 9 + 9) := (5 − 5)/5 + (((5 + 5)/5) ) 188 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2683 := ((1 + 1) × (11 + 111+1+1 )) − 1 2 Ï 2693 := 1 + ((1 + 1) × (1 + (1 + ((1 + 11) × (1 + 111))))) Ï 2688 := (1 + 1) × ((1 + 11) × (1 + 111)) := (2 × (22 + 2 + 2))2 − 22/2 := 2 × ((2 + 2 + 2) × (222 + 2)) := (22 × (22 /2 + 2) − 2)/2 3 := 3/3 + (3 × ((33 × 33 ) + 3)) := 3 + ((3 × ((33 × 3 ) + 3)) + 3) := 33/3 + (3 × ((33 × 33 ) + 3)) := (44 × ((44 + 4)/4 − 4)) − 4/4 := 4 × (4 × (4 × 44 − (4 + 4))) := 4 + ((4 × (4 × (4 × 44 − (4 + 4)))) + 4/4) := 5 + ((55/5 × ((5 − (5 + 5)/5)5 )) + 5) := (5 × 5 − 5/5) × (555 + 5)/5 := 5 + ((5 × 5 − 5/5) × (555 + 5)/5) := 6/6 + (((6 × 6 + 6) × ((6 + 6)/6)6 ) − 6) := (6 × 6 + 6) × ((6 + 6)/6) := 6 + (((6 × 6 + 6) × ((6 + 6)/6)6 ) − 6/6) := (7 × (7 × (7 × 7 + 7) − 7)) − (77 + 7)/7 := (7/7 + 7) × (7 × 7 × 7 − 7) := (7 × (7 × (7 × 7 + 7) − 7)) − (7 + 7)/7 := 8 + (((88/8 − 8) × (888 + 8/8)) + 8) := (8 + 8) × (88 − 8 + 88) := 8 + ((88/8 − 8) × (888 − 8/8 + 8)) := 9 + (99 × (9 + 9 + 9) + 9/9) := 9 + ((((9 + 9 + 9)/9) × (9 × 99 − 9/9)) + 9) := 9 + (99 × (9 + 9 + 9) + (99/9)) Ï 2684 := (1 + 1) × (11 + 111+1+1 ) 6 Ï 2689 := 1 + ((1 + 1) × ((1 + 11) × (1 + 111))) Ï 2694 := (11 × (1 + ((1 + 1) × (1 + 111+1 )))) − 1 := 22 + (22 × (22/2)2 ) := (((22 + 2) × (222 + 2)) + 2)/2 := (2 × (2 × (((22 + 2 + 2)2 ) − 2))) − 2 := 33/3 + (3 × (33 × 33 )) := 33 + ((3 − 3/3) × (33/3)3 ) := 3 + (3 × (((33 × 33 ) + 3) + 3)) := 44 × ((44 + 4)/4 − 4) := 4/4 + (4 × (4 × (4 × 44 − (4 + 4)))) := ((44 × (44 − 44/4)) − 4)/4 := 55 − (((55/5 + 5) + 5)(5+5)/5 ) := (5 × (555 + 5)) − 555/5 := (5 × (5 + 5) × 55) − (55 + 5/5) := (6 − ((6 + 6)/6)) × ((666 − 6/6) + 6) := 6/6 + ((6 × 6 + 6) × ((6 + 6)/6) ) := 6 + ((6 × 6 + 6) × ((6 + 6)/6)6 ) := (7 × (7 × (7 × 7 + 7) − 7)) − 77/7 := 7/7 + ((7/7 + 7) × (7 × 7 × 7 − 7)) := (7 × (7 × (7 × 7 + 7) − 7)) − 7/7 := (((8 × 8 − 8) × (88 + 8)) − 8)/((8 + 8)/8) := 8/8 + ((8 + 8) × (88 − 8 + 88)) := (8 − (8 + 8)/8) × (8 × (8 × 8 − 8) + 8/8) := 99/9 + 99 × (9 + 9 + 9) := 9 + ((99 × (9 + 9 + 9) − ((9 + 9)/9)) + 9) := 9 + (99 × (9 + 9 + 9) + ((99 + 9)/9)) Ï 2685 := 1 + ((1 + 1) × (11 + 111+1+1 )) 6 Ï 2690 := (1 + 1) × (1 + ((1 + 11) × (1 + 111))) Ï 2695 := 11 × (1 + ((1 + 1) × (1 + 111+1 ))) := ((22 × (222 /2 + 2)) + 2)/2 := 2 + (2 × ((2 + 2 + 2) × (222 + 2))) := 22/2 × ((222 + 2)/2 + 2) := 3 + (3 × ((33 × 33 ) + 3)) := ((33/3 + 3)3 ) − (33 + 33 ) := 33 + ((3 − 3/3) × (33/3)3 ) := 4/4 + (44 × ((44 + 4)/4 − 4)) := (4 + 4)/4 + (4 × (4 × (4 × 44 − (4 + 4)))) := 44/4 × (44 − 44/4) := 5 + ((5 × ((555 − 5 × 5) + 5)) + 5) := (5 + 5) × (5 × 55 − (5/5 + 5)) := 55 × (55 − (5/5 + 5)) := ((6 × 6 + 6) × ((6 + 6)/6) ) − 6 × 6/(6 + 6) := (6 + 6)/6 + ((6 × 6 + 6) × ((6 + 6)/6)6 ) := (6/6 + 6) × (6 × 66 − (66/6)) := ((7 − 77)/7) + (7 × (7 × (7 × 7 + 7) − 7)) := (7 − ((7 + 7)/7)) × (7 × 77 − 7/7) := 7 × (7 × (7 × 7 + 7) − 7) := (88/8 − 8) × (888 − 8/8 + 8) := (8 + 8)/8 + ((8 + 8) × (88 − 8 + 88)) := 8 + (((8 + 8) × (88 − 8 + 88)) − 8/8) := ((99 + 9)/9) + 99 × (9 + 9 + 9) := 9 + ((99 × (9 + 9 + 9) − 9/9) + 9) := 99/9 × (9 × (9 + 9 + 9) + ((9 + 9)/9)) 6 Ï 2686 := (1 + 1) × (1 + (11 + 111+1+1 )) Ï 2691 := 1 + ((1 + 1) × (1 + ((1 + 11) × (1 + 111)))) Ï 2696 := 1 + (11 × (1 + ((1 + 1) × (1 + 111+1 )))) := 2 + ((22 × (22/2)2 ) + 22) := 2 + ((((22 + 2) × (222 + 2)) + 2)/2) := 2 × (2 × (((22 + 2 + 2)2 ) − 2)) := 3 + ((3 × ((33 × 33 ) + 3)) + 3/3) := 3 × (((33 × 33 ) + 3) + 3) := 3 + ((3 × ((33 × 33 ) + 3)) + 33/3) := (4 + 4)/4 + (44 × ((44 + 4)/4 − 4)) := (44/4 × (44 − 44/4)) − 4 := (4 + 4) × ((4 − 4/4)4 + 44 ) := 5 + (((5/5 − 5) × 555/5) + 55 ) := 5/5 + ((5 + 5) × (5 × 55 − (5/5 + 5))) := 5/5 + (55 × (55 − (5/5 + 5))) := ((6 × 6 + 6) × ((6 + 6)/6)6 ) − (6 + 6)/6 := ((66/6 + 6) + 6) × (666/6 + 6) := 6 + (((6 × 6 + 6) × ((6 + 6)/6)6 ) + ((6 + 6)/6)) := (7 × (7 × (7 × 7 + 7) − 7)) − ((7 + 7)/7 + 7) := ((8 + 8) × (88 − 8 + 88)) − (8 + 8)/8 := 99 × (9 + 9 + 9) + ((99 + 9 + 9)/9) Ï 2687 := ((1 + 1) × ((1 + 11) × (1 + 111))) − 1 := 7 + ((7 × (7 × (7 × 7 + 7) − 7)) − (77/7)) := 7/7 + (7 × (7 × (7 × 7 + 7) − 7)) := (88/8 − 8) × (888 + 8/8 + 8) := 8 + ((8 + 8) × (88 − 8 + 88)) := 9 + (99 × (9 + 9 + 9) + 9) := 9 × (9 × 9 − 9) + (((9 + 9)/9)99/9 ) Ï 2692 := (1 + 1) × (1 + (1 + ((1 + 11) × (1 + 111)))) Ï 2697 := 1 + (1 + (11 × (1 + ((1 + 1) × (1 + 111+1 ))))) := (((22 + 2) × (222 + 2)) − 2)/2 := 2 × (((2 + 2 + 2) × (222 + 2)) + 2) := 2 + (22/2 × ((222 + 2)/2 + 2)) := 3 + ((3 × (33 × 33 )) + 33/3) := 3/3 + (3 × (((33 × 33 ) + 3) + 3)) := 33 + ((3 × (33 × 33 )) − 3) := (4 × (4 × (4 × 44 − (4 + 4)))) − 4/4 := 4 + (4 × (4 × (4 × 44 − (4 + 4)))) := 44 + (((((4 − 4/4) + 4)4 ) − 4) + 44 ) 5 5 := 5 − ((5 + 5)/(5 + 5) + 5 × 5 × 5) 6 5 5 := 5 + (5 − ((5 + 5)/(5 + 5) + 5 × 5 × 5)) 6 := (5 + 5)/5 + (55 × (55 − (5/5 + 5))) := ((6 + 6)/6) + (6 × ((6 × (66 + 6)) + 6)) := 666/6 + ((6 × (6 × (66 + 6))) − 6) := (7 × (7 × (7 × 7 + 7) − 7)) − (7/7 + 7) := (7 × (7 × (7 × 7 + 7) − 7)) − (7 + 7 + 7)/7 := (7 + 7)/7 + (7 × (7 × (7 × 7 + 7) − 7)) := ((8 + 8) × (88 − 8 + 88)) − 8/8 := (((8 × 8 − 8) × (88 + 8)) + 8)/((8 + 8)/8) := 8 + (((8 + 8) × (88 − 8 + 88)) + 8/8) := 9 + (99 × (9 + 9 + 9) + ((9 × 9 + 9)/(9 + 9))) := 9 + ((99 × (9 + 9 + 9) + 9/9) + 9) := ((9 + 9 + 9)/9) × ((9 × 99 − 9/9) + 9) := ((6 × 6 + 6) × ((6 + 6)/6) ) − 6/6 189 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2698 := 11 + (((1 + 1) × ((1 + 11) × (1 + 111))) − 1) Ï 2703 := (((1 + 1) × ((1 + 1) × (1 + 1 + 11)))1+1 ) − 1 Ï 2708 := (1 + 1) × (1 + (11 × (1 + (1 + 111+1 )))) := 2 + (2 × (2 × (((22 + 2 + 2)2 ) − 2))) := (2 × (22 + 2 + 2))2 − 2/2 := 2 + ((2 × (22 + 2 + 2))2 + 2) := 3 + (((3 − 3/3) × (33/3)3 ) + 33) := 3 + ((3 × (33 × 33 )) + 33 ) := ((33/3 + 3)3 ) − (33 + 3) := 4 + (((44 × (44 − 44/4)) − 4)/4) := ((44 + 4 + 4)(4+4)/4 ) − 4/4 := 4 + ((44 + 4 + 4)(4+4)/4 ) := ((5 + 5) × (5 × 55 − 5)) − (5 + 5)/5 := 5 + (((5 + 5) × (5 × 55 − 5)) − ((5 + 5)/5)) := 55 − ((55 + 55 + 5)/(5 + 5 + 5)) := ((6 + 6)/6 + 6 × 6) × ((66 − 6/6) + 6) := 666/6 + (6 × (6 × (66 + 6))) := (66 × (6 × 6 + 6)) − ((6 + 6)/6)6 := (7 + 7 + 7)/7 + (7 × (7 × (7 × 7 + 7) − 7)) := 7 + ((7 × (7 × (7 × 7 + 7) − 7)) + 7/7) := 7 + (((7 × (7 × (7 × 7 + 7) − 7)) − 7/7) + 7) := 8 + (((8 + 8) × (88 − 8 + 88)) + ((8 + 8)/8)) := 8 + ((((8 + 8) × (88 − 8 + 88)) − 8/8) + 8) := ((8 × (8 × 88 − (8 + 8))) − 88)/((8 + 8)/8) := ((9 + 9 + 9) × (9/9 + 99)) − (9 + 9)/9 := ((9 + 9 + 9)/9) × ((9 × 99 + 9/9) + 9) := 9 + (9 × 9 × (9 + 9 + 9) + (((9 + 9)/9)9 )) Ï 2699 := 11 + ((1 + 1) × ((1 + 11) × (1 + 111))) 2 := (2 × (22 + 2 + 2)) − (2/2 + 2 + 2) 3 Ï 2704 := ((1 + 1) × ((1 + 1) × (1 + 1 + 11)))1+1 := (2 × (22 + 2 + 2)) 2 3 3 := 3 + ((3 × (33 × 3 )) − 3/3) 4 Ï 2709 := 1 + ((1 + 1) × (1 + (11 × (1 + (1 + 111+1 ))))) := 2 + (((2 × (22 + 2 + 2))2 + 2/2) + 2) 3 := 3 + (((3 × (33 × 3 )) + 3 ) + 3/3) := 3 + ((3 × (33 × 33 )) + 33) (4+4)/4 := ((44 − 4)/4) × (44 − 4/4) := 4 + (44/4 × (4 − 44/4)) := (44 + 4 + 4) := ((5 + 5) × (5 × 55 − 5)) − 5/5 := 5 + (((5 + 5) × (5 × 55 − 5)) − 5/5) := 5 × 555 − (55/5 + 55) := (6 × (666 − 6 × 6 × 6)) − 6/6 := (((6 + 6)/6)6 − (6 + 6))(6+6)/6 := 6 + ((6 × (6 × (66 + 6))) + 666/6) := 77/7 + ((7/7 + 7) × (7 × 7 × 7 − 7)) := (((7 + 7 + 7)/7) + 7 × 7)(7+7)/7 := 7 + ((7 × (7 × (7 × 7 + 7) − 7)) + 7) := 8 + (((8 + 8) × (88 − 8 + 88)) + 8) := (88/8 − 8) × ((888 − 8/8 + 8) + 8) := 8 × 8 × 8 + ((88/8 − 8) 8−8/8 ) 9 := (((9 + 9)/9) ) + 9 × 9 × (9 + 9 + 9) Ï 2700 := (1 + 11) × (1 + ((1 + 1) × (1 + 111))) := (9 × 9 − (99/9 + 9 + 9)) (9+9)/9 Ï 2705 := 1 + (((1 + 1) × ((1 + 1) × (1 + 1 + 11)))1+1 ) := 9 + ((9 + 9 + 9) × (9/9 + 99)) Ï 2710 := (1 + 1) × (11 + ((1 + 11) × (1 + 111))) := 2 × ((2 × ((22 + 2 + 2) )) − 2) := 2/2 + (2 × (22 + 2 + 2))2 := 2 + (((2 × (22 + 2 + 2))2 + 2) + 2) := 3 × ((33 × 33 ) + 3 × 3) := 33 + ((3 × (33 × 33 )) − 3/3) := ((33/3 + 3)3 ) − 3/3 − 33 := (4/4 + 4 + 4) × (44 + 44 ) := 4/4 + ((44 + 4 + 4)(4+4)/4 ) := (((44 − 4) × (44 − 4/4)) + 4)/4 := (5 + 5) × (5 × 55 − 5) := 5 + ((5 + 5) × (5 × 55 − 5)) := 5 + (((5 + 5) × (5 × 55 − 5)) + 5) := 6 × (666 − 6 × 6 × 6) := (66 × (6 × 6 + 6)) − (66 + 6/6) := 6 + ((((6 + 6)/6)6 − (6 + 6))(6+6)/6 ) := (7 − ((7 + 7)/7)) × (7 × 77 + 7/7) := ((77 − 7)/7) + (7 × (7 × (7 × 7 + 7) − 7)) := 7 + (((7 × (7 × (7 × 7 + 7) − 7)) + 7/7) + 7) := 8 + ((((8 × 8 − 8) × (88 + 8)) + 8)/((8 + 8)/8)) := (88 × ((8 + 8 + 8) + 8)) − 888/8 := 8 + (((8 − (8 + 8)/8) × (8 × (8 × 8 − 8) + 8/8)) + 8) := (9 + 9 + 9) × (9/9 + 99) := 9 + ((((9 + 9)/9)99/9 ) + 9 × (9 × 9 − 9)) := 9 + (((9 + 9 + 9) × (9/9 + 99)) + 9/9) 2 Ï 2701 := 1 + ((1 + 11) × (1 + ((1 + 1) × (1 + 111)))) Ï 2706 := (1 + 1) × (11 × (1 + (1 + 111+1 ))) Ï 2711 := ((1 + 1) × ((1 + 11) × (1 + 1 + 111))) − 1 := (2 × (22 + 2 + 2))2 − 2/2 − 2 := 2 + (2 × (22 + 2 + 2))2 := (2 × (22 − 2))2 + 2222/2 := 33 + ((3 × (33 × 33 )) + 3/3) := 33 + (3 × (33 × 33 )) := ((33/3 + 3)3 ) − 33 := 44 + ((((4 − 4/4) + 4)4 ) + 44 ) := 44/4 × ((4 − 44)/4 + 44 ) := 4 + ((44 × (44 − 4) − (44 + 4))/4) := 5/5 + ((5 + 5) × (5 × 55 − 5)) := 5 + (((5 + 5) × (5 × 55 − 5)) + 5/5) := 55/5 + ((5 + 5) × (5 × 55 − 5)) := 6/6 + (6 × (666 − 6 × 6 × 6)) := 66 × (6 × 6 − 6/6 + 6) := 6 + ((66 × (6 × 6 + 6)) − (66 + 6/6)) := 7 + ((7 × (7 × (7 × 7 + 7) − 7)) − 7/7) := 77/7 + (7 × (7 × (7 × 7 + 7) − 7)) := 7 + ((((7 + 7 + 7)/7) + 7 × 7)(7+7)/7 ) := ((8/8 + 8 × 8) + 8) × 888/(8 + 8 + 8) := 88/8 × ((8 − 88)/8 + (8 + 8) × (8 + 8)) := 8888/8 + 8 × (8 × (8 + 8 + 8) + 8) := 9/9 + ((9 + 9 + 9) × (9/9 + 99)) := ((9 + 9 + 9)/9) × ((99/9) + 9 × 99) := 99/9 + ((9 + 9 + 9) × (9/9 + 99)) Ï 2712 := (1 + 1) × ((1 + 11) × (1 + 1 + 111)) Ï 2702 := 1 + (1 + ((1 + 11) × (1 + ((1 + 1) × (1 + 111))))) Ï 2707 := 1 + ((1 + 1) × (11 × (1 + (1 + 111+1 )))) 2 := (2 × (22 + 2 + 2)) − 2 := 2 + ((2 × (22 + 2 + 2))2 + 2/2) := 2 × (2 × (((22 + 2 + 2)2 ) + 2)) := ((33/3 + 3)3 ) − (3 × 3 + 33) := 3/3 + ((3 × (33 × 33 )) + 33) := 3 + (((3 × (33 × 33 )) + 33) + 3) := ((44 + 4 + 4)(4+4)/4 ) − (4 + 4)/4 := (44 × (44 − 4) − (44 + 4))/4 := 4 + (((44 + 4 + 4)(4+4)/4 ) + 4) := (5 + 5)/5 + ((5 + 5) × (5 × 55 − 5)) := 5 + (((5 + 5) × (5 × 55 − 5)) + ((5 + 5)/5)) := 55 × 55 − (55 + 5)/(5 + 5) := (6 + 6)/6 + (6 × (666 − 6 × 6 × 6)) := 6/6 + (66 × (6 × 6 − 6/6 + 6)) := 6 + (66 × (6 × 6 − 6/6 + 6)) := 7 + (7 × (7 × (7 × 7 + 7) − 7)) := 7 + ((7 − ((7 + 7)/7)) × (7 × 77 + 7/7)) := 7 × 77 + (((7 + 7 + 7)/7)7 − (7 + 7)) := 8 + ((8 − (8 + 8)/8) × (8 × (8 × 8 − 8) + 8/8)) := 8 + (((8 + 8) × (88 − 8 + 88)) + (88/8)) := (8 + 8 + 8) × ((888 + 8 + 8)/8) := 9 + ((99 × (9 + 9 + 9) + (99/9)) + 9) := 9 + (((9 + 9 + 9) × (9/9 + 99)) − ((9 + 9)/9)) := 9 + (((9 + 9 + 9)/9) × ((9 × 99 + 9/9) + 9)) 190 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2713 := 1 + ((1 + 1) × ((1 + 11) × (1 + 1 + 111))) Ï 2718 := 1 + (11 × (1 + ((1 + 1) × (1 + (1 + 111+1 ))))) Ï 2723 := 11 + ((1 + 1) × ((1 + 11) × (1 + 1 + 111))) := 2/2 + (2 × (2 × (((22 + 2 + 2) ) + 2))) := 2 + (2 × ((2 × (((22 + 2 + 2) ) + 2)) + 2)) := 22 + ((2 × (22 + 2 + 2))2 − (2/2 + 2)) := 3 + (((33/3 + 3)3 ) − (3/3 + 33)) := 3 + ((3 × ((33 × 33 ) + 3)) + 33) := 3 + ((((33/3 + 3)3 ) − 33 ) + 3) := 4 + (((44 − 4)/4) × (44 − 4/4)) := ((44 − 4) × (4 × 4 × 4 + 4)) − (4 + 4)/4 := (((44 × (44 − 4 − 4)) − 4)/4) − 4 := 55 × 55 + ((5 − 55 )/(5 + 5)) := 5 × 555 − ((5 + 5)/5 + 55) := (5 × (555 − 5 − 5)) − (5 + 5)/5 := 6 + ((66 × (6 × 6 − 6/6 + 6)) + 6/6) := 6 + ((66 × (6 × 6 − 6/6 + 6)) + 6) := (6/6 + 6) × (6 × 66 − (6/6 + 6)) := 7 + ((7 × (7 × (7 × 7 + 7) − 7)) + (77/7)) := 7 + (((((7 + 7 + 7)/7) + 7 × 7)(7+7)/7 ) + 7) := 7 × (((7 × 777) + 7)/(7 + 7)) := 8 + ((88 × ((8 + 8 + 8) + 8)) − 888/8) := ((((8 + 8)/8) + 8) + 8) × ((88 − 8/8) + 8 × 8) := 8 + ((88/8 − 8) × ((888 + 8/8 + 8) + 8)) := (9 + 9) × (9 × (9 + 9) − (99/9)) := 99 × (9 + 9 + 9) + ((9 × 99 + 9)/(9 + 9)) 2 := 9 + ((9 × 9 − (99/9 + 9 + 9)) (9+9)/9 ) Ï 2714 := (1 + 1) × (1 + ((1 + 11) × (1 + 1 + 111))) 2 Ï 2719 := 1 + (1 + (11 × (1 + ((1 + 1) × (1 + (1 + 111+1 )))))) Ï 2724 := (1 + 11) × (1 + ((1 + 1) × (1 + 1 + 111))) := 2 + (2 × (2 × (((22 + 2 + 2)2 ) + 2))) := 2 + (((2 × (22 + 2 + 2)) + 22/2) + 2) := 2 × ((22 × (22+2+2 − 2)) − 2) := 3 + (((33/3 + 3)3 ) − 33) := 3 + ((3 − 3/3) × ((33/3)3 + 33 )) := 3 + ((33 × (3 × 33 + 3)) − 33) := 4 + ((((44 − 4) × (44 − 4/4)) + 4)/4) := ((44 − 4) × (4 × 4 × 4 + 4)) − 4/4 := 4 + ((44 − 4) × (4 × 4 × 4 + 4)) := 5 × 555 − ((55 + 5/5) + 5) := 5 × 555 − (55 + 5/5) := (5 × (555 − 5 − 5)) − 5/5 := ((6/6 + 6) × (6 × 66 − 6)) − 66/6 := (6 + 6) × (6 × 6 × 6 + 66/6) := ((7 × 777) − (77/7))/((7 + 7)/7) := 7 × 77 + (((7 + 7 + 7)/7)7 − 7) := 7/7 + (7 × (((7 × 777) + 7)/(7 + 7))) := ((8 − 8/8 + 8) + 8) × ((888 − 8)/8 + 8) := (88 × ((8 + 8 + 8) + 8)) − ((8/8 + 88) + 8) := (((8 × 8 × 88) − 8)/((8 + 8)/8)) − 88 := 99 × (9 + 9 + 9) + ((9 × 9 × 9 + 9)/(9 + 9)) := 9/9 + ((9 + 9) × (9 × (9 + 9) − (99/9))) := (9 × ((9 + 9) × (9 + 9) − 9)) − 999/9 := 666 + (((6 + 6)/6)66/6 ) Ï 2715 := 1 + ((1 + 1) × (1 + ((1 + 11) × (1 + 1 + 111)))) 2 Ï 2720 := ((1 + ((1 + 1)1+1+11 ))/(1 + 1 + 1)) − 11 Ï 2725 := (111 − 1 − 1) × (1 + ((1 + 1) × (1 + 11))) := 22/2 + (2 × (22 + 2 + 2))2 := 2 × (2 × ((((22 + 2 + 2)2 ) + 2) + 2)) := 22 + ((2 × (22 + 2 + 2))2 − 2/2) := 33 + (3 × ((33 × 33 ) + 3)) := 3 + (((33/3 + 3)3 ) − 33 ) := (3 × 3 + 3)3 + (((3 × 3 + 3/3)3 ) − 3) := 44/4 + ((44 + 4 + 4)(4+4)/4 ) := (44 − 4) × (4 × 4 × 4 + 4) := (((44 × (44 − 4 − 4)) + 4)/4) − 4 := 5 × 555 − (55 + 5) := 5 × 555 − 55 := 5 × (555 − 5 − 5) := 6 + (((6 × (6 × (66 + 6))) + 666/6) + 6) := 6 + ((((6 + 6)/6)66/6 ) + 666) := 6/6 + ((6 + 6) × (6 × 6 × 6 + 66/6)) := 7 × (7 × (7 × 7 + 7) + 7) − 7/7 − 77 := ((7 × 777) + 7/7)/((7 + 7)/7) := 7 × 77 + (((7 + 7 + 7)/7)7 − 7/7) := (88/8 − 8) × ((888 + 8/8 + 8) + 8) := 8 × (((8 × 88 − 8)/((8 + 8)/8)) − 8) := 8 + (88/8 × ((8 + 8) × (8 + 8) − (8/8 + 8))) := 9 + (((9 + 9 + 9)/9) × ((99/9) + 9 × 99)) := ((9 − 9/9) + 9) × (9 × (9 + 9) − ((9 + 9)/9)) := 9 + (((9/9 + 9 + 9) + 9) × (99 − ((9 + 9)/9))) Ï 2716 := (1 + 1) × (1 + (1 + ((1 + 11) × (1 + 1 + 111)))) Ï 2721 := 1 + (((1 + ((1 + 1)1+1+11 ))/(1 + 1 + 1)) − 11) Ï 2726 := 1 + ((111 − 1 − 1) × (1 + ((1 + 1) × (1 + 11)))) := 2 × ((2 × (((22 + 2 + 2)2 ) + 2)) + 2) := 2/2 + ((2 × (22 + 2 + 2))2 + 22+2 ) := 22 + (2 × (22 + 2 + 2))2 := (3 − 3/3) × ((33/3)3 + 33 ) := (33 × (3 × 33 + 3)) − 33 := ((33/3 + 3)3 ) − (3 × (3 + 3)) := ((44 − 4) × (4 × 4 × 4 + 4)) − 4 := 4/4 + ((44 − 4) × (4 × 4 × 4 + 4)) := ((44 × (44 − 4 − 4)) − (4 + 4))/4 := 5/5 + (5 × 555 − (55 + 5)) := 5/5 + (5 × 555 − 55) := 5/5 + (5 × (555 − 5 − 5)) := (6/6 + 6) × (6 × 66 − ((6 + 6)/6 + 6)) := 6 + ((((6 × (6 × (66 + 6))) + 666/6) + 6) + 6) := (66/6 + 6 × 6) × (((6 + 6)/6)6 − 6) := 7 × (((7 × 777) − 7)/(7 + 7)) := ((7/7 + 7) × (7 × 7 × 7 − ((7 + 7)/7))) − 7 := 7 × 77 + ((7 + 7 + 7)/7)7 := (8 − 8/8) × ((8 × (88 + 8) + 8)/((8 + 8)/8)) := ((8 × 8 − 88/8)(8+8)/8 ) − 88 := (88 × ((8 + 8 + 8) + 8)) − ((8 + 8)/8 + 88) := ((9/9 + 9 + 9) + 9) × (99 − ((9 + 9)/9)) := ((9/9 + 9) × (999/9 + 9 × (9 + 9))) − 9 := (9 + 9 + 9) × ((9 + 9)/9 + 99) − 9/9 Ï 2717 := 11 × (1 + ((1 + 1) × (1 + (1 + 111+1 )))) Ï 2722 := (1 + 1 + 1 + 11)1+1+1 − 11 − 11 := 2 + ((2 × (22 + 2 + 2))2 + 22/2) := 222 + (2 × (22 + 2) + 2)2 := 22 + ((2 × (22 + 2 + 2))2 + 2/2) := ((33/3 + 3)3 ) − 33 := 3/3 + ((33 × (3 × 33 + 3)) − 33) := 3 × ((33 × 33 ) + (3 × (3 + 3))) := (4 + 4)/4 + ((44 − 4) × (4 × 4 × 4 + 4)) := ((44 × (44 − 4 − 4)) − 4)/4 := 5 + (55 × 55 − (5 + 5)/(5 + 5)) := (5 + 5)/5 + (5 × 555 − 55) := (5 + 5)/5 + (5 × (555 − 5 − 5)) := 66/6 + (66 × (6 × 6 − 6/6 + 6)) := 6 + ((6/6 + 6) × (6 × 66 − ((6 + 6)/6 + 6))) := 66 + ((66 × (6 × 6 + 6)) − 666/6) 4 := 44/4 × (4 − (4/4 + 4 + 4)) 5 Ï 2727 := (((1 + 1)1+1+11 ) − 11)/(1 + 1 + 1) := 7/7 + (7 × (((7 × 777) − 7)/(7 + 7))) := 7 × 7 × (7 × 7 + 7) − (7/7 + 7 + 7 + 7) := 7 + (((7 × 777) + 7/7)/((7 + 7)/7)) := 88/8 × ((8 + 8) × (8 + 8) − (8/8 + 8)) := 8 + (((8 − 8/8 + 8) + 8) × ((888 − 8)/8 + 8)) := (88 × ((8 + 8 + 8) + 8)) − (8/8 + 88) := 99/9 × ((((9 + 9)/9)9−9/9 ) − 9) := 9999/9 + ((9 × (99 + 9 × 9)) − 9) := (9 + 9 + 9) × ((9 + 9)/9 + 99) 191 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2728 := (1 + 1) × (11 × (1 + (1 + (1 + 111+1 )))) Ï 2733 := (1 + 1 + 1 + 11)1+1+1 − 11 Ï 2738 := (1 + 1) × ((111/(1 + 1 + 1))1+1 ) := 2 × (22 × (22+2+2 − 2)) := (22+2 − 2)2/2+2 − 22/2 := 2 × (((2 + 2 + 2)2 + 2/2)2 ) := (3 − 3/3) × ((33/3)3 + 33) := ((33/3 + 3)3 ) − 33/3 := ((33/3 + 3)3 ) − 3 − 3 := 44 × (44 − 4 − 4)/4 := 4 + (((44 × (44 − 4 − 4)) + 4)/4) := (4 + 4)/4 + (4 × ((4 × (4 × 44 − 4)) − 4)) := 55/5 × (((5 − (5 + 5)/5)5 ) + 5) := 5 + (55/5 × (((5 − (5 + 5)/5)5 ) + 5)) := 5 × 555 − (((5 + 5)/5)5 + 5) := ((6 + 6)/6)6 + ((6 + 6) × (6 × 6 × 6 + 6)) := 666/6 + ((6 × ((6 × (66 + 6)) + 6)) − 6) := (6 + 6)/6 + (6 × ((6 × 66 − 6) + 66)) := (7/7 + 7) × (7 × 7 × 7 − ((7 + 7)/7)) := 7 × 7 × (7 × 7 + 7) − 77/7 := 7/7 + 7 × (7 × (7 × 7 + 7)) − 7 := 88 × (((8 − 8/8 + 8) + 8) + 8) := (8 × ((8 + 8) × (8 + 8) + 88)) − (88/8 + 8) := 8 + ((88 × (((8 − 8/8 + 8) + 8) + 8)) + ((8 + 8)/8)) := 9/9 + (9 + 9 + 9) × ((9 + 9)/9 + 99) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) − 999/9) := 9/9 + (((9 − 9/9) + 9) × (9 × (9 + 9) − 9/9)) Ï 2729 := 1 + ((1 + 1) × (11 × (1 + (1 + (1 + 111+1 ))))) Ï 2734 := 1 + ((1 + 1 + 1 + 11)1+1+1 − 11) Ï 2739 := 1 + ((1 + 1) × ((111/(1 + 1 + 1))1+1 )) := 2/2 + (2 × (22 × (22+2+2 − 2))) := 2 × ((((2 + 2 + 2)2 + 2/2)2 ) − 2) := (((2 × (2 + 2 + 2)2 + 2)2 ) + 2)/2 := 3 + (((33/3 + 3)3 ) − (3 × (3 + 3))) := ((3 − 33)/3) + ((33/3 + 3)3 ) := 33 × ((3 × 33 − 3/3) + 3) := ((44 × (44 − 4 − 4)) + 4)/4 := 4 + ((44 + 4)/4 × (44 − (4 + 4)/4)) := 44/4 × ((44 − 44/4) + 4) := 5 + ((5 × (555 − 5 − 5)) − 5/5) := (5 × (5 + 5) × 55) − (55/5 + 5) := (5 × (5 + 5) × 55) − 55/5 := ((6 − 6/6)6−6/6 ) − 6 × 66 := (66 × (6 × 6 + 6)) − ((6 + 6)/6 + 6 × 6) := 666/6 + (6 × ((6 × (66 + 6)) + 6)) := 7 × 7 × (7 × 7 + 7) − (7/7 + 7 + 7) := ((7 − 77)/7) + 7 × 7 × (7 × 7 + 7) := (7 + 7)/7 + 7 × (7 × (7 × 7 + 7)) − 7 := 8/8 + (88 × (((8 − 8/8 + 8) + 8) + 8)) := 8 × 8 × 8 + (((8 + 8)/8) × 8888/8) := 88/8 × (((8 + 8) × (8 + 8) − 8) + 8/8) := 9 + (((9 − 9/9) + 9) × (9 × (9 + 9) − ((9 + 9)/9))) := (9 + 9) × (9 × (9 + 9) − 9) − (99/9 + 9) := 9 + ((9/9 + 9) × (999/9 + 9 × (9 + 9))) Ï 2730 := (1 + 1) × ((((1 + 1)1+11 ) − 1)/(1 + 1 + 1)) Ï 2735 := 1 + (1 + ((1 + 1 + 1 + 11)1+1+1 − 11)) Ï 2740 := (1 + 1) × (1 + ((111/(1 + 1 + 1))1+1 )) := 2 + (2 × (22 × (22+2+2 − 2))) := ((22 + 2/2) × ((22/2)2 − 2)) − 2 := 2 + (2 × (((2 + 2 + 2)2 + 2/2)2 )) := 3 + ((3 + 3) × 333 + 33+3 ) := ((33/3 + 3)3 ) − 3 × 3 := ((33/3 + 3)3 ) − (3/3 + 3) := (44 + 4)/4 × (44 − (4 + 4)/4) := (4 × 4 × 4 × 44) − (4 − 4/4)4 := 4 + (4 × ((4 × (4 × 44 − 4)) − 4)) := 5 + (5 × (555 − 5 − 5)) := 5 + ((5 × (555 − 5 − 5)) + 5) := (5 + 5) × (5 × 55 − 5/5) := (6/6 + 6) × (6 × 66 − 6) := (66 × (6 × 6 + 6)) − (6 × 6 + 6/6) := 6 + ((66 × (6 × 6 + 6)) − ((6 + 6)/6 + 6 × 6)) := 7 × 7 × (7 × 7 + 7) − (7 + 7) := 7 × 7 × (7 × 7 + 7) − ((7 + 7)/7 + 7) := 7 + (7 × 7 × (7 × 7 + 7) − (77/7)) := (8 + 8)/8 + (88 × (((8 − 8/8 + 8) + 8) + 8)) := 8 + ((88 × ((8 + 8 + 8) + 8)) − (8/8 + 88)) := ((8 × (8 × 88 − 8)) − 88)/((8 + 8)/8) := (9/9 + 9) × (999/9 + 9 × (9 + 9)) := (9 + 9) × (9 × (9 + 9) − 9) − (9/9 + 9 + 9) := 9 + (9999/9 + (9 × (99 + 9 × 9))) Ï 2731 := (1 + ((1 + 1)1+1+11 ))/(1 + 1 + 1) Ï 2736 := (1 + 1) × ((1 + 11) × (1 + 1 + 1 + 111)) Ï 2741 := (1 + 1 + 1 + 11)1+1+1 − 1 − 1 − 1 := ((222/2+2 ) + 2/2)/(2/2 + 2) := 2 × (2 × 222 + (22 − 2)2 ) := 2 + ((((2 × (2 + 2 + 2)2 + 2)2 ) + 2)/2) := 3 + (((3 × 3 + 3/3)3 ) + (3 × 3 + 3)3 ) := (33 − 3) × (333/3 + 3) := ((33/3 + 3)3 ) − 3 := 4 + (((44 × (44 − 4 − 4)) − 4)/4) := 4 × ((4 × (4 × 44 − 4)) − 4) := (4 × (4 × (4 × 44 − 4))) − 44/4 := 5 + ((5 × (555 − 5 − 5)) + 5/5) := 55/5 + (5 × (555 − 5 − 5)) := 5/5 + ((5 + 5) × (5 × 55 − 5/5)) := 6/6 + ((6/6 + 6) × (6 × 66 − 6)) := 6 × ((6 × 66 − 6) + 66) := 6 + ((66 × (6 × 6 + 6)) − (6 × 6 + 6/6)) := 7/7 + (7 × 7 × (7 × 7 + 7) − (7 + 7)) := (7/7 + 7) × (7 × 7 × 7 − 7/7) := 7 × 7 × (7 × 7 + 7) − (7 + 7 + 7)/7 := 8 × 8 + ((88/8 − 8) × (888 + 8/8)) := 8 + (88 × (((8 − 8/8 + 8) + 8) + 8)) := (8 × ((8 + 8) × (8 + 8) + 88)) − 88/8 := 9999/9 + (9 × (99 + 9 × 9)) := (9 + 9) × (9 × (9 + 9) − (9/9 + 9)) := (9 + 9) × (9 × (9 + 9) − 9) − ((99 + 9 + 9)/9) Ï 2732 := 1 + ((1 + ((1 + 1)1+1+11 ))/(1 + 1 + 1)) Ï 2737 := (1 + (11 + 11)) × (111+1 − 1 − 1) Ï 2742 := (1 + 1 + 1 + 11)1+1+1 − 1 − 1 := 2 × ((22 × (22+2+2 − 2)) + 2) := (22 + 2/2) × ((22/2)2 − 2) := (22+2 − 2)2/2+2 − 2 := ((33/3 + 3)3 ) − (3 × 3 + 3) := ((3/3 + 3)3 ) + (3 × (33 × 33 )) := 3/3 + (((33/3 + 3)3 ) − 3) := 4 + (44 × (44 − 4 − 4)/4) := 4/4 + (4 × ((4 × (4 × 44 − 4)) − 4)) := (4 − 44)/4 + (4 × (4 × (4 × 44 − 4))) := 5 + ((5 × (555 − 5 − 5)) + ((5 + 5)/5)) := ((55 + 5)/5) + (5 × (555 − 5 − 5)) := (5 + 5)/5 + ((5 + 5) × (5 × 55 − 5/5)) := (6 + 6)/6 + ((6/6 + 6) × (6 × 66 − 6)) := 6/6 + (6 × ((6 × 66 − 6) + 66)) := 6 + (6 × ((6 × 66 − 6) + 66)) := 7 × 7 × (7 × 7 + 7) − (77 + 7)/7 := 7 × 7 × (7 × 7 + 7) − 7 := 7 × 7 × (7 × 7 + 7) − (7 + 7)/7 := (((8 × 8 × 88) + 8)/((8 + 8)/8)) − 88 := ((8 − 8/8 + 8) + 8) × (888/8 + 8) := (8 − 88)/8 + (8 × ((8 + 8) × (8 + 8) + 88)) := ((9 + 9)/9) × (9 × (9 × (9 + 9) − 9) − (99/9)) := ((9 − 9/9) + 9) × (9 × (9 + 9) − 9/9) := (9 + 9) × (9 × (9 + 9) − 9) − (99 + 9)/9 192 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2743 := (1 + 1 + 1 + 11)1+1+1 − 1 Ï 2748 := 1 + (1 + (1 + (1 + (1 + 1 + 1 + 11)1+1+1 ))) Ï 2753 := 1 + ((1 + 1)11−1 + ((1 + 11)1+1+1 )) := (22+2 − 2)2/2+2 − 2/2 := 2 + ((22+2 − 2)2/2+2 + 2) := 2 + (((22 + 2/2)2 ) + 2222) := ((33/3 + 3)3 ) − 3/3 := 3 + (((33/3 + 3)3 ) + 3/3) := 3 × 3 + ((33/3 + 3)3 ) := 4 + (44/4 × ((44 − 44/4) + 4)) := (4 × (4 × (4 × 44 − 4))) − 4 := 4/4 + (4 × (4 × (4 × 44 − 4))) := 5 × 555 − ((5 + 5)/5)5 := (5 × (5 + 5) × 55) − (5 + 5)/5 := 5 + ((5 × (5 + 5) × 55) − ((5 + 5)/5)) := 6 + ((6 × ((6 × 66 − 6) + 66)) + 6/6) := 6 + ((6 × ((6 × 66 − 6) + 66)) + 6) := 6 + ((66 + 6/6) × (6 × 6 − 6/6 + 6)) := 7 × 7 × (7 × 7 + 7) − 7/7 := 77/7 + 7 × (7 × (7 × 7 + 7)) − 7 := 7 + (7 × 7 × (7 × 7 + 7) + ((7 + 7)/7)) := (8 × ((8 + 8) × (8 + 8) + 88)) − (8/8 + 8) := ((8 × (8 × 88 − (8 + 8))) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 + 8) × (8 + 8) + 88)) := (9 + 9) × (9 × (9 + 9) − 9) − 99/9 := ((9 + 9 + 9)/9) + ((9 + 9) × (9 × (9 + 9) − 9) − 9) := (9 + 9) × (9 × (9 + 9) − 9) − 9/9 Ï 2744 := (1 + (1 + 1 + 11))1+1+1 Ï 2749 := ((111 − 1) × (1 + ((1 + 1) × (1 + 11)))) − 1 Ï 2754 := 11 + ((1 + 1 + 1 + 11)1+1+1 − 1) := (22+2 − 2)2/2+2 := 2222 + (22 + 2/2)2 − 2 := 2 + ((22 × (((22/2)2 + 2) + 2)) + 2) := (33/3 + 3)3 := 3 + ((((33/3 + 3)3 ) − 3/3) + 3) := 33 × (3 × 33 + 3) := ((44 − 4)/4 + 4)4−4/4 := 4/4 + ((4 × (4 × (4 × 44 − 4))) − 4) := (4 + 4)/4 + (4 × (4 × (4 × 44 − 4))) := (5 × (5 + 5) × 55) − 5/5 := 5 + ((5 × (5 + 5) × 55) − 5/5) := (5 × (5 + 5) × 55) − (5/5 + 5) := (66 × (6 × 6 + 6)) − ((66/6 + 6) + 6) := (66 × (6 × 6 + 6)) − 6 − 6 − 6 := 7 × 7 × (7 × 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7) − ((7 + 7)/7)) := ((77 − 7)/7) + 7 × 7 × (7 × 7 + 7) := 8 × ((8 − 8/8)88/8−8 ) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) − (88/8)) := (8 + 8)/8 + (8 × ((8 + 8) × (8 + 8) + 88)) := ((9 − 99)/(9 + 9)) + (9 + 9) × (9 × (9 + 9) − 9) := (9 + 9) × (9 × (9 + 9) − 9) := ((6 + 6)/6 + 6 + 6) 6×6/(6+6) := (99 − 9/9) × ((9/9 + 9 + 9) + 9) Ï 2745 := 1 + (1 + 1 + 1 + 11)1+1+1 Ï 2750 := (111 − 1) × (1 + ((1 + 1) × (1 + 11))) Ï 2755 := 11 + (1 + 1 + 1 + 11)1+1+1 := 2/2 + (22+2 − 2)2/2+2 := 22 × (((22/2)2 + 2) + 2) := 22/2 + (22+2 − 2)2/2+2 := 3/3 + ((33/3 + 3)3 ) := 3 + (((33/3 + 3)3 ) + 3) := 3/3 + (33 × (3 × 33 + 3)) := (44 + 4/4) × ((44 + 4)/4 − 4) := 44/4 × (44 − ((4 + 4)/4 + 4)) := 4 + ((4 × (4 × (4 × 44 − 4))) − 4/4) := (5 × (5 + 5) × 55) − 5 := 5 × (5 + 5) × 55 := 5 + (5 × (5 + 5) × 55) 6×6/(6+6) := 6 + (((6 + 6)/6 + 6 + 6) := 7/7 + 7 × 7 × (7 × 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7) − 7/7) := 77/7 + 7 × 7 × (7 × 7 + 7) := 8/8 + (8 × ((8 − 8/8)88/8−8 )) := (8/8 + 8 + 8 + 8) × (888 − 8)/8 := 88 + ((88/8 − 8) × (888 + 8/8)) := (9 + 9) × (9 × (9 + 9) − 9) − 9 := 99/9 × ((9 × (9 + 9 + 9) − ((9 + 9)/9)) + 9) := 9/9 + (9 + 9) × (9 × (9 + 9) − 9) Ï 2751 := 1 + ((111 − 1) × (1 + ((1 + 1) × (1 + 11)))) Ï 2756 := 1 + (11 + (1 + 1 + 1 + 11)1+1+1 ) Ï 2746 := 1 + (1 + (1 + 1 + 1 + 11)1+1+1 ) ) := (66 × (6 × 6 + 6)) − (66/6 + 6) := 6 + ((6 × ((6 × (66 + 6)) + 6)) + 666/6) := 2 + (22+2 − 2)2/2+2 := 2222 + ((22 + 2/2)2 ) := 2 × ((2 × (22 − 2))2 − 222) := 3 + (((33/3 + 3)3 ) − 3/3) := (33 × (3 × 33 + 3)) − 3 := 3 + (((33/3 + 3)3 ) + 3 × 3) := (4 × (4 × (4 × 44 − 4))) − ((4 + 4)/4 + 4) := (4 × (4 × (4 × 44 − 4))) − 4/4 := 4 + (4 × (4 × (4 × 44 − 4))) := 5/5 + ((5 × (5 + 5) × 55) − 5) := 5/5 + (5 × (5 + 5) × 55) := 5 + ((5 × (5 + 5) × 55) + 5/5) := (((6 + 6)/6)6 × ((6 × 6 + 6/6) + 6)) − 6 := (6/6 + 6) × (6 × 66 − (6 × 6/(6 + 6))) := (6 − 66)/6 + ((66 × (6 × 6 + 6)) − 6) := (7 + 7)/7 + 7 × 7 × (7 × 7 + 7) := 7 + 7 × 7 × (7 × 7 + 7) := (77 + 7)/7 + 7 × 7 × (7 × 7 + 7) := (8 × ((8 + 8) × (8 + 8) + 88)) − 8/8 := ((8 × (8 × 88 − (8 + 8))) + 8)/((8 + 8)/8) := (9 + 9) × (9 × (9 + 9) − 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + (9 + 9) × (9 × (9 + 9) − 9) := (8 + 8)/8 + (8 × ((8 − 8/8)88/8−8 )) := 9/9 + ((9 + 9) × (9 × (9 + 9) − 9) − 9) Ï 2747 := 1 + (1 + (1 + (1 + 1 + 1 + 11)1+1+1 )) := 2 + ((22+2 − 2)2/2+2 + 2/2) Ï 2752 := (1 + 1)11−1 + ((1 + 11)1+1+1 ) := 2 + (22 × (((22/2)2 + 2) + 2)) 3 Ï 2757 := 1 + (1 + (11 + (1 + 1 + 1 + 11)1+1+1 )) := 2 + ((22+2 − 2)2/2+2 + 22/2) := 3 + ((33/3 + 3)3 ) := 3 × 3 + (((33/3 + 3) ) − 3/3) := 3 + (33 × (3 × 33 + 3)) := (4 × (4 × (4 × 44 − 4))) − (4/4 + 4) := 4 × (4 × (4 × 44 − 4)) := 4 + ((4 × (4 × (4 × 44 − 4))) + 4/4) := (5 + 5)/5 + ((5 × (5 + 5) × 55) − 5) := (5 + 5)/5 + (5 × (5 + 5) × 55) := 5 + ((5 × (5 + 5) × 55) + ((5 + 5)/5)) 6 := ((6 + 6)/6) × ((6 × 6 + 6/6) + 6) := 6 + ((6/6 + 6) × (6 × 66 − (6 × 6/(6 + 6)))) := (7 + 7 + 7)/7 + 7 × 7 × (7 × 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7) + 7/7) := 7 + ((7 × 7 × (7 × 7 + 7) − 7/7) + 7) := 8 + (88/8 × (((8 + 8) × (8 + 8) − 8) + 8/8)) := 8 × ((8 + 8) × (8 + 8) + 88) := 8 + (((8 × ((8 + 8) × (8 + 8) + 88)) − (88/8)) + 8) := (9 + 9)/9 + ((9 + 9) × (9 × (9 + 9) − 9) − 9) := (9 + 9) × (9 × (9 + 9) − 9) − (9 + 9)/9 := ((9 + 9 + 9)/9) + (9 + 9) × (9 × (9 + 9) − 9) := (66 + 6/6) × (6 × 6 − 6/6 + 6) 193 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2758 := ((1 + (11 + 11)) × (111+1 − 1)) − 1 − 1 Ï 2763 := 111 + ((1 + 11) × ((1 + 1) × 111 − 1)) Ï 2768 := 1 + (1 + (1 + (((1 + 1)1+11 ) − 111+1+1 ))) := 2 + (2 × ((2 × (22 − 2))2 − 222)) := 2 + (22/2 × (((222 + 22)/2) − 2)) := 2 + ((22+2 − 2)2/2+2 + 22) := 3 + ((33 × (3 × 33 + 3)) + 3/3) := 3 × (((33 × 33 ) + 33 ) + 3) := 33 + (((33/3 + 3)3 ) − 3) := 4 + ((4 × (4 × (4 × 44 − 4))) + (4 + 4)/4) := 44/4 + (4 × (4 × (4 × 44 − 4))) := 4 × ((4 × (4 × 44 − 4)) + 4) := 5 + (((5 − 5 )/(5 + 5)) − 55) := 5 × 555 − (55 + 5)/5 := 5 × 555 − ((5 + 5)/5 + 5) := (6/6 + 6) × (6 × 66 − ((6 + 6)/6)) := (((6 − 66) + 6)/6) + (66 × (6 × 6 + 6)) := (6 + 6)/6 + ((66 × (6 × 6 + 6)) − 6) := 7 + 7 × (7 × (7 × 7 + 7) + 7) := 7 + (7 × 7 × (7 × 7 + 7) + (77 + 7)/7) := (7/7 + 7) × (((7 + 7 + 7)/7) + 7 × 7 × 7) := 8 + ((8/8 + 8 + 8 + 8) × (888 − 8)/8) := 88/8 + (8 × ((8 + 8) × (8 + 8) + 88)) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) + 8) := ((9 + 9)/9) × (9 × (9 × (9 + 9) − 9) + ((9 + 9)/9)) := 9 + (9 + 9) × (9 × (9 + 9) − 9) := 9 × 9 × 9 + ((((9 + 9)/9)99/9 ) − 9) 5 5 Ï 2759 := ((1 + (11 + 11)) × (111+1 − 1)) − 1 Ï 2764 := (1 + 1)1+11 − 1 − 111+1+1 Ï 2769 := 111 + (1 + 1) × (111+1+1 − 1 − 1) := 22 + ((22 + 2/2) × ((22/2)2 − 2)) := 22 + ((22+2 − 2)2/2+2 − 2) := (2/2 + 2) × ((2 × (222 − 22)) − 2/2) := 3 + ((((33/3 + 3)3 ) + 3 × 3) + 3) := 3 + ((33 × (3 × 33 + 3)) − 33/3) := (33 × (3 × 33 + 3)) − 3 := 4 + (((4 × (4 × (4 × 44 − 4))) − 4/4) + 4) := (44 × ((44 − 4)/4)) − 4 − 4 := ((44 × (44 − 4) + 4)/4) − 4 := 5 × 555 − (55/5 + 5) := 5 × 555 − 55/5 := 5 × 555 − (5/5 + 5) := (66 × (6 × 6 + 6)) − (6/6 + 6 + 6) := (66 × (6 × 6 + 6)) − ((6 + 6)/6 + 6) := (66 × (6 × 6 + 6)) − 6 × 6/(6 + 6) := 7 + ((7 × 7 × (7 × 7 + 7) + 7/7) + 7) := 7 + (((7 × 7 × (7 × 7 + 7) − 7/7) + 7) + 7) := 7 + ((7 × 7 × (7 × 7 + 7) + (77/7)) + 7) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) − 8/8) := ((8 × 8 − 8/8) × (88/((8 + 8)/8))) − 8 := 8 + (((8 × ((8 + 8) × (8 + 8) + 88)) + 8/8) + 8) := 9 × 9 × 9 + ((((9 + 9)/9)99/9 ) − (9 + 9)) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) + 9/9) := 99 + (((9 + 9 + 9)/9) × (9 × 99 − 9/9)) Ï 2760 := (1 + (11 + 11)) × (111+1 − 1) Ï 2765 := ((1 + 1)1+11 ) − 111+1+1 Ï 2770 := 111 + (((1 + 1) × (111+1+1 − 1)) − 1) := (2 + 2 + 2) × (222 − (22 + 2)) := 22 + ((22+2 − 2)2/2+2 − 2/2) := (22 × ((2 × 22+2+2 ) − 2)) − 2 := 3 + ((33 × (3 × 33 + 3)) + 3) := 3 + (((33/3 + 3)3 ) + (3 × (3 + 3))) := 33 + (((33/3 + 3)3 ) − 3/3) := 4 + ((4 × (4 × (4 × 44 − 4))) + 4) := 4 + (44/4 × (44 − 4/4 − 4)) := (44 × (44 − 4) − (4 + 4))/4 := 5 + ((5 × (5 + 5) × 55) + 5) := 5 × 555 − 5 − 5 := 5 × 555 − 5 := (66 × (6 × 6 + 6)) − 6 − 6 := (6/6 + 6) × (6 × 66 − 6/6) := (66 × (6 × 6 + 6)) − (6 + 6)/6 := (7/7 + 7) × (7 × 7 × 7 + ((7 + 7)/7)) := 7 + (7 × (7 × (7 × 7 + 7) + 7) + 7) := 7 + ((7 × 7 × (7 × 7 + 7) + (77 + 7)/7) + 7) := 8 + (8 × ((8 + 8) × (8 + 8) + 88)) := (8 − 8/8) × ((8 × (8 × 8 − (8 + 8))) + (88/8)) := 8 + (((8 × ((8 + 8) × (8 + 8) + 88)) + ((8 + 8)/8)) + 8) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) − ((9 + 9 + 9)/9)) := 99/9 + (9 + 9) × (9 × (9 + 9) − 9) := 99 + (99 × (9 + 9 + 9) − ((9 + 9)/9)) Ï 2761 := 1 + ((1 + (11 + 11)) × (111+1 − 1)) Ï 2766 := 1 + (((1 + 1)1+11 ) − 111+1+1 ) Ï 2771 := 111 + ((1 + 1) × (111+1+1 − 1)) := 22/2 × (((222 + 22)/2) − 2) := 22 + (22+2 − 2)2/2+2 := (22 × ((2 × 22+2+2 ) − 2)) − 2/2 := (33 × (3 × 33 + 3)) − 33/3 := (33 × (3 × 33 + 3)) − 3 − 3 := 33 + ((33/3 + 3)3 ) := 44/4 × (44 − 4/4 − 4) := ((44 × (44 − 4) − (4 + 4))/4) − 4 := (44 × (44 − 4) − 4)/4 := 55/5 + (5 × (5 + 5) × 55) := 5/5 + (5 × 555 − (5 + 5)) := 5/5 + (5 × 555 − 5) := (66 × (6 × 6 + 6)) − 66/6 := (66 × (6 × 6 + 6)) − 6 := (66 × (6 × 6 + 6)) − 6/6 := 7 + (7 × 7 × (7 × 7 + 7) + ((77 − 7)/7)) := 7 + (((7 × 7 × (7 × 7 + 7) + 7/7) + 7) + 7) := 77 + ((7 × (7 × (7 × 7 + 7) − 7)) − 7/7) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) + 8/8) := 8 + (((8/8 + 8 + 8 + 8) × (888 − 8)/8) + 8) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) + (88/8)) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) − ((9 + 9)/9)) := ((99 + 9)/9) + (9 + 9) × (9 × (9 + 9) − 9) := 99 + (99 × (9 + 9 + 9) − 9/9) Ï 2762 := 1 + (1 + ((1 + (11 + 11)) × (111+1 − 1))) 2 Ï 2767 := 1 + (1 + (((1 + 1)1+11 ) − 111+1+1 )) 2+2 2/2+2 Ï 2772 := 11 × ((1 + 11) × (11 + (11 − 1))) := 22 × ((2 × 22+2+2 ) − 2) := 2 + ((2 + 2 + 2) × (22 − (22 + 2))) := 22 + ((2 := (3 × (3 + 3)) + ((33/3 + 3)3 ) := 33 + (((33/3 + 3)3 ) − (3/3 + 3)) := 33 × (3 × 33 + 3) := ((44 × (44 − 4/4 − 4)) + 4)/4 := ((44 × (44 − 4) − 4)/4) − 4 := 44 × ((44 − 4)/4) := ((55 + 5)/5) + (5 × (5 + 5) × 55) := (5 + 5)/5 + (5 × 555 − (5 + 5)) := (5 + 5)/5 + (5 × 555 − 5) := (6 − 66)/6 + (66 × (6 × 6 + 6)) := 6/6 + ((66 × (6 × 6 + 6)) − 6) := 66 × (6 × 6 + 6) − 2) + 2/2) := 7 + (7 × 7 × (7 × 7 + 7) + (77/7)) := 7 + ((7/7 + 7) × (7 × 7 × 7 + ((7 + 7)/7))) := 77 + (7 × (7 × (7 × 7 + 7) − 7)) := 8 + ((8 × ((8 + 8) × (8 + 8) + 88)) + ((8 + 8)/8)) := (888/8 × (8/8 + 8 + 8 + 8)) − 8 := (8 × 8 − 8/8) × (88/((8 + 8)/8)) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) − 9/9) := ((99 + 9 + 9)/9) + (9 + 9) × (9 × (9 + 9) − 9) := 99 + 99 × (9 + 9 + 9) 194 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2773 := 111 + ((1 + 1) × 111+1+1 ) Ï 2778 := (1 + 11111)/(1 + 1 + 1 + 1) := (22 + 2/2) × (22/2)2 := 3/3 + (33 × (3 × 33 + 3)) := 3 + ((33 × (3 × 33 + 3)) + 3) := 3 + ((((33/3 + 3)3 ) + 33) + 3) := (44 × (44 − 4) + 4)/4 := 4 + (((44 × (44 − 4) + 4) + 4)/4) := 44/4 × ((4/4 − 4) + 44 ) ) − 2)) 2 Ï 2783 := 11 × (11 × (1 + (11 + 11))) := (2/2 + 2) × ((2 × (22 − 22)) + 2) := 2/2 + (22 × ((2 × 2 2+2+2 := 5 × 555 − (5 + 5)/5 := 5 + (5 × 555 − ((5 + 5)/5)) := 5 + ((5 × 555 − ((5 + 5)/5)) + 5) := 6/6 + (66 × (6 × 6 + 6)) := 6 + (66 × (6 × 6 + 6)) := 66/6 + (66 × (6 × 6 + 6)) := 7/7 + ((7 × (7 × (7 × 7 + 7) − 7)) + 77) := (7 − 7/7) × ((77 × (7 − 7/7)) + 7/7) := ((7 − 77)/7) + 7 × (7 × (7 × 7 + 7) + 7) := 8/8 + ((8 × 8 − 8/8) × (88/((8 + 8)/8))) := ((8 + 8)/8) × (88 × (8 + 8) − (88/8 + 8)) := 8 + (888/8 × (8/8 + 8 + 8 + 8)) 99/9 := 9/9 + (99 × (9 + 9 + 9) + 99) := 9/9 + ((((9 + 9)/9) Ï 2774 := (111 × (1 + ((1 + 1) × (1 + 11)))) − 1 2+2+2 ) + 9 × 9 × 9) Ï 2779 := 1 + ((1 + 11111)/(1 + 1 + 1 + 1)) := 99 + (99 × (9 + 9 + 9) + (99/9)) Ï 2784 := 1 + (11 × (11 × (1 + (11 + 11)))) := ((22 + 2/2) × (22/2)2 ) − 2 − 2 := (2 + 2 + 2) × ((222 − 22) + 2) := 3 + (((33/3 + 3)3 ) + 33 ) := 3 + (((33 × (3 × 33 + 3)) + 3/3) + 3) := (3/3 + 3) × (33+3 − 33) := ((44 × (44 − 4) + 4) + 4)/4 := 4 + (((44 × (44 − 4) − 4)/4) + 4) := 4 × ((444 − 4) + 44 ) := 5 × 555 − 5/5 := 5 + (5 × 555 − 5/5) := 5 + ((5 × 555 − 5/5) + 5) := (6 + 6)/6 + (66 × (6 × 6 + 6)) := 6 + ((66 × (6 × 6 + 6)) + 6/6) := 6 + ((66 × (6 × 6 + 6)) + 6) := 2 + (22 × ((2 × 2 ) − 2)) := 7 + (((7/7 + 7) × (7 × 7 × 7 + ((7 + 7)/7))) + 7) := 7 × (7 × (7 × 7 + 7) + 7) − 7 − 7 := (7/7 + 7) × ((7 × 7 × 7 − ((7 + 7)/7)) + 7) := (888/8 × (8/8 + 8 + 8 + 8)) − 8/8 := (((8 × (8 × 88 − 8)) − 8)/((8 + 8)/8)) − 8/8 := 8 × ((8 × 88 − 8)/((8 + 8)/8)) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) + (99/9)) := 999 + ((9 + 9) × 99 − ((9 + 9)/9)) := 999/9 + 99 × (9 + 9 + 9) Ï 2775 := 111 × (1 + ((1 + 1) × (1 + 11))) Ï 2780 := 1 + (1 + ((1 + 11111)/(1 + 1 + 1 + 1))) Ï 2785 := 1 + (1 + (11 × (11 × (1 + (11 + 11))))) := 222/2 × ((22 + 2/2) + 2) := 2 × ((2 × (222 + 22 )) − 22) := 2 + ((22 + 2/2) × (22/2)2 ) := 3 + (33 × (3 × 33 + 3)) := 3 + (((33/3 + 3)3 ) + 33) := 3/3 + ((3/3 + 3) × (33+3 − 33)) := 4 + ((44 × (44 − 4) − 4)/4) := 4 + ((44 × ((44 − 4)/4)) + 4) := 4/4 + (4 × ((444 − 4) + 44 )) := 5 × 555 := 5 + 5 × 555 := 5 + (5 × 555 + 5) := 6 + ((66 × (6 × 6 + 6)) + ((6 + 6)/6)) := 6 + (((66 × (6 × 6 + 6)) + 6/6) + 6) := 7 × (77 + 7) + ((7 + 7 + 7)/7) := 7/7 + (7 × (7 × (7 × 7 + 7) + 7) − (7 + 7)) := 7 × (7 × (7 × 7 + 7) + 7) − (7/7 + 7) := 888/8 × (8/8 + 8 + 8 + 8) := ((8 × (8 × 88 − 8)) − 8)/((8 + 8)/8) := 8/8 + (8 × ((8 × 88 − 8)/((8 + 8)/8))) := 999/9 + (99 × (9 + 9 + 9) − 9) := 999 + ((9 + 9) × 99 − 9/9) := 99 × (9 + 9 + 9) + ((999 + 9)/9) 2 := (6 × 6/(6 + 6)) + (66 × (6 × 6 + 6)) 7 Ï 2776 := 1 + (111 × (1 + ((1 + 1) × (1 + 11)))) Ï 2781 := (11 × (11 × (1 + (11 + 11)))) − 1 − 1 Ï 2786 := 11 + (111 × (1 + ((1 + 1) × (1 + 11)))) := ((22 + 2/2) × (22/2)2 ) − 2 := 222 + (((2 × (22 + 2))2 ) − 2) := 3 + ((33 × (3 × 33 + 3)) + 3/3) := 3 × (((33 × 33 ) + 33) + 3) := 3 × 3 + (((33/3 + 3)3 ) + 33) := 4 + (44 × ((44 − 4)/4)) := 4 + (((44 × (44 − 4) + 4)/4) + 4) := 4 × 4 + ((44 × (44 − 4) − (4 + 4))/4) := 5/5 + 5 × 555 := 5 + (5 × 555 + 5/5) := 55/5 + 5 × 555 := 6 + ((66 × (6 × 6 + 6)) − ((6 + 6)/6)) := 6 + ((66 × (6 × 6 + 6)) + (6 × 6/(6 + 6))) := (6/6 + 6) × (((6 + 6)/6) + 6 × 66) := (7/7 + 7) × ((7 × 7 × 7 − 7) + (77/7)) := 7 × (7 × (7 × 7 + 7) + 7) − (77 + 7)/7 := 7 × (7 × (7 × 7 + 7) + 7) − 7 := 88 + ((8 + 8) × (88 − 8 + 88)) := (88/8 + 8 + 8) × (888/8 − 8) := (8 + 8)/8 + (8 × ((8 × 88 − 8)/((8 + 8)/8))) := 999 + (9 + 9) × 99 := 9 + ((((9 + 9)/9)99/9 ) + 9 × 9 × 9) := 2 + ((22 × ((2 × 2 2+2+2 ) − 2)) + 2) 99/9 := 9 × 9 × 9 + ((((9 + 9)/9) ) − 9/9) Ï 2777 := 1 + (1 + (111 × (1 + ((1 + 1) × (1 + 11))))) Ï 2782 := (11 × (11 × (1 + (11 + 11)))) − 1 2 2 Ï 2787 := 1 + (11 + (111 × (1 + ((1 + 1) × (1 + 11))))) := 2 + (222/2 × ((22 + 2/2) + 2)) := 2 × ((((2 + 2 + 2) + 2/2) ) + 22) := 2 + (((22 + 2/2) × (22/2)2 ) + 2) := 33 + ((33/3 + 3)3 ) := 33 + ((33 × (3 × 33 + 3)) + 3/3) := 33 + (33 × (3 × 33 + 3)) := 4 + ((44 × (44 − 4) + 4)/4) := 4 + ((((44 × (44 − 4) + 4) + 4)/4) + 4) := 4 + (44/4 × ((4/4 − 4) + 44 )) := (5 + 5)/5 + 5 × 555 := 5 + (5 × 555 + ((5 + 5)/5)) := 5 × 555 + (55 + 5)/5 := 6 + ((66 × (6 × 6 + 6)) − 6/6) := ((66 − 6)/6) + (66 × (6 × 6 + 6)) := 6 + (((66 × (6 × 6 + 6)) + (6 × 6/(6 + 6))) + 6) := 77 + ((7 − ((7 + 7)/7)) × (7 × 77 + 7/7)) := 7 × (7 × (7 × 7 + 7) + 7) − 77/7 := 7/7 + (7 × (7 × (7 × 7 + 7) + 7) − 7) := 8/8 + (((8 + 8) × (88 − 8 + 88)) + 88) := ((8 + 8)/8) × (88 × (8 + 8) − (8/8 + 8 + 8)) := (((8 × (8 × 88 − 8)) + 8)/((8 + 8)/8)) − 8/8 := 9 × 9 × 9 + (((9 + 9)/9)99/9 ) := 9/9 + ((9 + 9) × 99 + 999) := 9 × (9 + 9) × (9 + 9) − ((999/9 + 9) + 9) 195 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2788 := 1 + (1 + (11 + (111 × (1 + ((1 + 1) × (1 + 11)))))) 2 2 Ï 2793 := (11 + (11 − 1)) × (1 + (11 × (1 + 11))) 2×(2+2) Ï 2798 := 1 + (1 + ((1 + 11) × (11 + (1 + 1) × 111))) := 2222 + ((22 + 2)2 ) := 22 + ((2 × (22 + 2)) ) := ((22 × (2 := (3/3 + 33) × (3 × 33 + 3/3) := 3 + ((33 + 3) × ((3 × (33 + 3)) + 3)) := 33 + (((33/3 + 3)3 ) + 33 ) := 4 + (4 × ((444 − 4) + 44 )) := 4 + (((44 × (44 − 4) + 4)/4) + 4 × 4) := 4 + (44/4 × (44 − (4 + 4)/4)) := 55 + (((5 − 55 )/(5 + 5)) − 5 × 5) := (5 × (555 + 5)) − ((5 + 5)/5 + 5) := (5 × (555 + 5)) − (5 + 5)/5 := 6 + ((66 × (6 × 6 + 6)) + ((66 − 6)/6)) := (6/6 + 6) × ((6 × 6/(6 + 6)) + 6 × 66) := (6 − 66)/6 + (6 × (6 × (66 + 6 + 6))) := (7 + 7)/7 + (7 × (7 × (7 × 7 + 7) + 7) − 7) := 7 × (7 × (7 × 7 + 7) + 7) := 7 + (7 × (7 × (7 × 7 + 7) + 7) − ((7 + 7)/7)) − 2)) − 2)/2 (8+8)/8 := ((8 × (8 × 88 − 8)) + 8)/((8 + 8)/8) := ((8 × 8 − 88/8) := ((9 − 9/9) + 9) × (((9 + 9)/9) + 9 × (9 + 9)) := 9 + (99 × (9 + 9 + 9) + 999/9) Ï 2789 := 11 + ((1 + 11111)/(1 + 1 + 1 + 1)) )−8−8 Ï 2794 := 11 × (1 + (11 × (1 + (11 + 11)))) := ((8 + 8)/8) × (88 × (8 + 8) − (8/8 + 8)) := 9 + ((((9 + 9) × 99 − 9/9) + 999) + 9) Ï 2799 := ((1 + 111) × (1 + ((1 + 1) × (1 + 11)))) − 1 := 2/2 + (((2 × (22 + 2))2 ) + 222 ) := 22 × ((22×(2+2) − 2)/2) := 2/2 + (2222 + ((22 + 2)2 )) := 3 + ((((33/3 + 3)3 ) + 33) + 3 × 3) := 33/3 × ((33+3 + 33)/3) := 33 + (33 × (3 × 33 + 3)) := 4 × 4 + ((44 × (44 − 4) + 4)/4) := 44/4 × (44 − (4 + 4)/4) := (4 × (444 + 44 )) − 4/4 := (5 × (555 + 5)) − 55/5 := (5 × (555 + 5)) − (5/5 + 5) := (5 × (555 + 5)) − 5/5 := 6 + ((66 × (6 × 6 + 6)) + (66/6)) := 66/6 × (6 × (6 × 6 + 6) + ((6 + 6)/6)) := 6 + ((6/6 + 6) × ((6 × 6/(6 + 6)) + 6 × 66)) := 7 + (7 × (7 × (7 × 7 + 7) + 7) − (77/7)) := 7/7 + 7 × (7 × (7 × 7 + 7) + 7) := 7 + (7 × (7 × (7 × 7 + 7) + 7) − 7/7) := 8 + ((88/8 + 8 + 8) × (888/8 − 8)) := ((8 + 8)/8) × (88 × (8 + 8) − (88/8)) := (88 × ((8 + 8 + 8) + 8)) − (8/8 + 8 + 8) := 9 + (((9 + 9) × 99 − 9/9) + 999) := 99/9 × (9 × (9 + 9 + 9) + (99/9)) := 9 + (((9 + 9) × 99 + 999) + 9) Ï 2790 := 1 + (11 + ((1 + 11111)/(1 + 1 + 1 + 1))) 2 2 Ï 2795 := 1 + (11 × (1 + (11 × (1 + (11 + 11))))) 2×(2+2) := 2 + (2222 + ((22 + 2)2 )) := 2 + (((2 × (22 + 2)) ) + 22 ) := ((22 × (2 := (33 + 3) × ((3 × (33 + 3)) + 3) := 33 + ((((33/3 + 3)3 ) − 3) + 33 ) := (33 + 3/3) × (3 × 33 + 3/3) := (44 + 4/4) × (44 − 4 − 4)/4 := (44 − 4/4) × (44 + 4)/4 := 4 × (444 + 44 ) := 5 + ((5 × 555 + 5) + 5) := (5 × (555 + 5)) − 5 := 5 × (555 + 5) := 6 + (((66 × (6 × 6 + 6)) + 6) + 6) := (6/6 + 6 + 6) × (6 × 6 × 6 − 6/6) := (((6 + 6)/6)6+6 ) − 6 × 6 × 6 × 6 := (77/7 + 7) × (7/7 + 77 + 77) := (7 + 7)/7 + 7 × (7 × (7 × 7 + 7) + 7) := 7 + 7 × (7 × (7 × 7 + 7) + 7) := (8 × 8 − ((8 + 8)/8)) × (8 × 8 − (88/8 + 8)) := 88/8 + (8 × ((8 × 88 − 8)/((8 + 8)/8))) := (8 + 8) × (888/8 + 8 × 8) := 9 + ((9 + 9) × 99 + 999) Ï 2791 := (11 × (1 + (11 × (1 + (11 + 11))))) − 1 − 1 − 1 − 2)) + 2)/2 Ï 2800 := (1 + 111) × (1 + ((1 + 1) × (1 + 11))) 99/9 := 9 + (((((9 + 9)/9) ) + 9 × 9 × 9) + 9) Ï 2796 := (1 + 11) × (11 + (1 + 1) × 111) := (9/9 + 99) × ((9/9 + 9 + 9) + 9) Ï 2801 := 1 + ((1 + 111) × (1 + ((1 + 1) × (1 + 11)))) := (((22 × (22×(2+2) − 2)) − 2)/2) − 2 := 2 + (22 × ((22×(2+2) − 2)/2)) := (((22 − 2)2 × (22+2 − 2)) + 2)/2 := 3 + ((3/3 + 33) × (3 × 33 + 3/3)) := 33 + ((33 × (3 × 33 + 3)) − 3) := 3 + ((((33/3 + 3)3 ) + 33 ) + 33 ) := ((44 − 4/4) × (44 + 4)/4) − 4 := (4 × (444 + 44 )) − 4 := 4/4 + (4 × (444 + 44 )) := 5 + (5 × 555 + (55/5)) := 5/5 + ((5 × (555 + 5)) − 5) := 5/5 + (5 × (555 + 5)) := 6 + ((((66 × (6 × 6 + 6)) + 6/6) + 6) + 6) := (6 × (6 × (66 + 6 + 6))) − 6 − 6 := (6 × (6 × (66 + 6 + 6))) − 6/6 − 6 := 7 × (7 × (7 × 7 + 7) + 7) − (7 + 7)/7 := (7 + 7 + 7)/7 + 7 × (7 × (7 × 7 + 7) + 7) := 7 + (7 × (7 × (7 × 7 + 7) + 7) + 7/7) := 8 + ((888/8 × (8/8 + 8 + 8 + 8)) + 8) := 8 + (((8 × (8 × 88 − 8)) + 8)/((8 + 8)/8)) := ((8 × 8 − 88/8)(8+8)/8 ) − 8 := 9 + (((9 + 9) × 99 + 999) + 9/9) := 9 × (9 + 9) × (9 + 9) − (999/9 + 9) := 9 + (((9 + 9) × 99 + 999) + (99/9)) Ï 2792 := (11 × (1 + (11 × (1 + (11 + 11))))) − 1 − 1 2 Ï 2797 := 1 + ((1 + 11) × (11 + (1 + 1) × 111)) 2×(2+2) Ï 2802 := 1 + (1 + ((1 + 111) × (1 + ((1 + 1) × (1 + 11))))) := 2 + ((2222 + ((22 + 2)2 )) + 2) := 2 × (2 × (((22 + 2 + 2) ) + 22)) := 2 + (((22 × (2 := 3 × 33 + (((33/3 + 3)3 ) − 33) := 3 + (33/3 × ((33+3 + 33)/3)) := 3 + ((33 × (3 × 33 + 3)) + 33 ) := (4 × (444 + 44 )) − 4 − 4 := 4/4 + ((4 × (444 + 44 )) − 4) := (4 + 4)/4 + (4 × (444 + 44 )) := 5 + (5 × 555 + ((55 + 5)/5)) := (5 + 5)/5 + ((5 × (555 + 5)) − 5) := (5 + 5)/5 + (5 × (555 + 5)) := 6 + ((6/6 + 6) × (((6 + 6)/6) + 6 × 66)) := (6 × (6 × (66 + 6 + 6))) − 66/6 := (6 × (6 × (66 + 6 + 6))) − 6 := 7 × (7 × (7 × 7 + 7) + 7) − 7/7 := 77/7 + (7 × (7 × (7 × 7 + 7) + 7) − 7) := 7 + (7 × (7 × (7 × 7 + 7) + 7) + ((7 + 7)/7)) := 8 + (8 × ((8 × 88 − 8)/((8 + 8)/8))) := (88 × ((8 + 8 + 8) + 8)) − (88/8 + 8) := ((8 + 8)/8) × ((88 × (8 + 8) − 8) + 8/8) := 99/9 + ((9 + 9) × 99 + 999) := 9 + (((9 − 9/9) + 9) × (((9 + 9)/9) + 9 × (9 + 9))) := 9 + ((99 × (9 + 9 + 9) + 999/9) + 9) − 2)) + 2)/2) 196 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2803 := (11 × (111 + (1 + 11)1+1 )) − 1 − 1 2 Ï 2808 := (1 + 11) × (1 + (11 + (1 + 1) × 111)) := 2 × (2 × ((2 × (22 × 2 := ((22/2 + 2 × 22) ) − 222 3 2+2 )) − 2)) 3 Ï 2813 := 11 × (1 + 1)(1+1) := (((22 × 2 2×(2+2) 1+1+1 −1−1−1 ) − 2)/2) − 2 := 3 + ((3 + 3/3) × (3 × 33 + 3/3)) := (33 + 3) × (3 × 3 − 3) := 3 + ((((33/3 + 3)3 ) + 33) + 33) := 4 + ((4 × (444 + 44 )) − 4/4) := (4 × 4 × 4 × 44) − 4 − 4 := 4/4 + ((4 × 4 × 4 × 44) − 4) 5 5 := 5 + ((5 × (555 + 5)) − ((5 + 5)/5)) := 5 + (((5 − 5 )/(5 + 5)) − 5) := 55 + ((5 − 55 )/(5 + 5)) := 6/6 + ((6 × (6 × (66 + 6 + 6))) − 6) := 6 × (6 × (66 + 6 + 6)) := 6 + ((6 × (6 × (66 + 6 + 6))) − 6/6) := 77 + (((7 + 7 + 7)/7) + 7 × 77) := (7/7 + 7) × ((7 × 7 × 7 + 7/7) + 7) := 77 + ((7/7 + 7) × (7 × 7 × 7 − 7/7)) := (88 × ((8 + 8 + 8) + 8)) − (88 + 8 + 8)/8 := (88 × ((8 + 8 + 8) + 8)) − 8 := 8 + (88/8 × ((8 + 8) × (8 + 8) − 8/8)) := 9 + ((99/9) × (9 × (9 + 9 + 9) + (99/9))) := (99 + 9) × (((9 − 9/9) + 9) + 9) := (99/9 + 9 + 9) × (99 − ((9 + 9)/9)) 7 Ï 2804 := (11 × (111 + (1 + 11)1+1 )) − 1 := 2 × ((2 × (2 × ((22 × 2 2+2 ) − 2))) + 2) Ï 2809 := ((111 − 1)/(1 + 1) − (1 + 1))1+1 1+1+1 Ï 2814 := 11 × (1 + 1)(1+1) 2 := (2 × 22 × 2 3 := (2 × (22 + 2 + 2) + 2/2) 2+2+2 −1−1 )−2 := 33 + (((33/3 + 3)3 ) + 33) := 3/3 + ((33 + 3) × (3 × 3 − 3)) := 3 + (((33 + 3) × (3 × 33 − 3)) + 3) := 4 + (4 × (444 + 44 )) := 4 + (44/4 × (44 − 4/4)) := (4 × 4 × 4 × 44) − (4 + 4)/4 (5+5)/5 := 5 + ((5 × (555 + 5)) − 5/5) := (55 − (5 + 5)/5) := (6 + 6)/6 + ((6 × (6 × (66 + 6 + 6))) − 6) := 6/6 + (6 × (6 × (66 + 6 + 6))) := 77/7 + 7 × (7 × (7 × 7 + 7) + 7) := ((77/7 − 7) + 7 × 7) (7+7)/7 := (((8 × 8 × 88) − 8)/((8 + 8)/8)) − 8 := (8 × 8 − 88/8) := 9 × (9 + 9) × (9 + 9) − ((999 + 9)/9) := 9 + ((9/9 + 99) × ((9/9 + 9 + 9) + 9)) Ï 2805 := 11 × (111 + (1 + 11)1+1 ) := 22/2 × (2 2×(2+2) − 2/2) (8+8)/8 Ï 2810 := 1 + (((111 − 1)/(1 + 1) − (1 + 1))1+1 ) := (2 × (22 × 22+2+2 − 2)) − 2 := 5 + ((55 − (5 + 5)/5)(5+5)/5 ) := 6 + (6 × (6 × (66 + 6 + 6))) := 77 + 7 × (7 × (7 × 7 + 7)) − 7 := ((8 + 8)/8) × (88 × (8 + 8) − 8/8) := 9 + (9 × (9 + 9) × (9 + 9) − 999/9) Ï 2815 := 11 × (1 + 1)(1+1) := ((22 × 2 2×(2+2) 1+1+1 −1 ) − 2)/2 := 33 + (33 × (3 × 3 + 3)) := 33 + (((33/3 + 3)3 ) + 33) := ((33/3 + 3) ) + (((3 + 3)3 − 3)/3) := 44/4 × (44 − 4/4) := (4 × 4 × 4 × 44) − ((4 + 4)/4 + 4) := (4 × 4 × 4 × 44) − 4/4 := 5 + (5 × (555 + 5)) := 5 + ((5 × (555 + 5)) + 5) := 5 + (((5 × (555 + 5)) + 5) + 5) 3 3 := (66 × (6 × 6 + 6)) + (66 × 6/(6 + 6)) := (6 + 6)/6 + (6 × (6 × (66 + 6 + 6))) := 6 + ((6 × (6 × (66 + 6 + 6))) + 6/6) := (77 + 7)/7 + 7 × (7 × (7 × 7 + 7) + 7) := 77 + (7 × 7 × (7 × 7 + 7) − (77/7)) := 7 + ((7/7 + 7) × ((7 × 7 × 7 + 7/7) + 7)) := 88/8 × ((8 + 8) × (8 + 8) − 8/8) := 8/8 + ((8 × 8 − 88/8)(8+8)/8 ) := (88 × ((8 + 8 + 8) + 8)) − 8/8 := 9 × (9 + 9) × (9 + 9) − 999/9 := (9 + 9)/9 + ((99 + 9) × (((9 − 9/9) + 9) + 9)) Ï 2806 := (1 + (11 + 11)) × (1 + 111+1 ) Ï 2811 := (1 + 1 + 1) × ((1 + 1)11 − 1111) := 9 × (9 + 9) × (9 + 9) − ((9 + 9)/9 + 99) Ï 2816 := 11 × (1 + 1)(1+1) 1+1+1 := 2 × 22 × 22+2+2 := (22 + 2/2) × ((22/2)2 + 2/2) := 2 + ((2 × (22 + 2 + 2) + 2/2)2 ) := 3/3 + ((33 × (3 × 33 + 3)) + 33) := 3 + ((33 + 3) × (3 × 33 − 3)) := 33/3 × ((3/3 + 3)3/3+3 ) := 4/4 + (44/4 × (44 − 4/4)) := (4 × 4 × 4 × 44) − (4/4 + 4) := 4 × 4 × 4 × 44 := 5 + ((5 × (555 + 5)) + 5/5) := 55/5 + (5 × (555 + 5)) := 5 + ((5 × (555 + 5)) + (55/5)) := (6 × (6 × (66 + 6 + 6))) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × (6 × (66 + 6 + 6))) := 6 + ((6 × (6 × (66 + 6 + 6))) + ((6 + 6)/6)) := 7 + ((7 × (7 × (7 × 7 + 7) + 7) − 7/7) + 7) := 7 + 7 × (7 × (7 × 7 + 7) + 7) + 77/7 := 77/7 × (((7 + 7)/7)7/7+7 ) := (8 − 88)/8 + (88 × ((8 + 8 + 8) + 8)) := (((8 × 8 × 88) − 8)/((8 + 8)/8)) − 8/8 := 88 × ((8 + 8 + 8) + 8) := ((9 + 9)/9) × ((((9 + 9)/9)9 ) + 9 × 99) := 999/9 + ((9 + 9 + 9) × (9/9 + 99)) := 99/9 × (((9 + 9)/9)9−9/9 ) Ï 2807 := 1 + ((1 + (11 + 11)) × (1 + 111+1 )) 2 := ((2 × (22 + 2 + 2) + 2/2) ) − 2 Ï 2812 := 1 + ((1 + 1 + 1) × ((1 + 1)11 − 1111)) := 2 × (22 × 2 2+2+2 − 2) Ï 2817 := 11 × (1 + 1)(1+1) := ((22 × 2 2×(2+2) 1+1+1 +1 ) + 2)/2 3 := ((33 + 3) × (3 × 33 − 3)) − 3/3 := 3 + (((33 + 3) × (3 × 33 − 3)) + 3/3) := 3 × ((3 × (33 + 3)) − 33) := (4 × 4 × 4 × 44) − (4/4 + 4 + 4) := (4 × 4 × 4 × 44) − 4 := 4/4 + (4 × 4 × 4 × 44) := 55 − ((55 + 5)/(5 + 5) + 5) := 55 − (55 + 5)/(5 + 5) := 5 + (55 − (55 + 5)/(5 + 5)) := (6 × (6 × (66 + 6 + 6))) − 6/6 := 6 + ((6 × (6 × (66 + 6 + 6))) − ((6 + 6)/6)) := 6 + ((6 × (6 × (66 + 6 + 6))) + (6 × 6/(6 + 6))) := 7 + (7 × (7 × (7 × 7 + 7) + 7) + 7) := (7/7 − 77) × ((77 + 7)/7 − 7 × 7) := 7 + ((7 × 7 × (7 × 7 + 7) − (77/7)) + 77) := (88 × ((8 + 8 + 8) + 8)) − (8/8 + 8) := ((8 × 8 × 88) − 8)/((8 + 8)/8) := 8/8 + (88 × ((8 + 8 + 8) + 8)) := 9 × (9 + 9) × (9 + 9) − (9/9 + 99 + 9) := (9 + 9) × 99 + (9999/9 − 9 × 9) := 9 × (9 + 9) × (9 + 9) − 99 197 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2818 := 11 × (1 + 1)(1+1) := 2 + (2 × 22 × 2 1+1+1 2+2+2 +1+1 Ï 2823 := 1 + ((1 + (11 × (1 + (1 + 1)11−1−1 )))/(1 + 1)) 2 3 3 3+3 1+1+1 )+1 2 := (2 × (2 × (222 + 22 ))) − 2/2 ) Ï 2828 := 11 × (1 + (1 + 1)(1+1) := 2 × ((2 × (222 + 22 )) + 2) := 3 + (((33/3 + 3)3 ) + 3 × 33 ) := 3/3 + (33 × 33 + (3 × 3 + 3) ) := (3 × (((3 + 3) − 3) + 3 := (4 + 4)/4 + (4 × 4 × 4 × 44) := (44/4 × (4/4 + 44 )) − 4 := 4 + 4 × 4 × 4 × 44 + 4 + 4 := 5 + (((5 − 55 )/(5 + 5)) + 55 ) := 5 + ((((5 − 55 )/(5 + 5)) + 55 ) + 5) := 55 + (5 × 555 − ((5 + 5)/5)) := ((66 − 6)/6) + (6 × (6 × (66 + 6 + 6))) := 6 + (((6 × (6 × (66 + 6 + 6))) + (6 × 6/(6 + 6))) + 6) := (6/6 + 6) × ((((6 + 6)/6) + 6 × 66) + 6) )) − 3 := 7 + (77/7 × (((7 + 7)/7)7+7/7 )) := 7 + 7 × 7 × (7 × 7 + 7) + 77 := (8 + 8)/8 + (88 × ((8 + 8 + 8) + 8)) := 8 + ((88 × ((8 + 8 + 8) + 8)) − 8/8) := 8 + (((8 × 8 × 88) + 8)/((8 + 8)/8)) := 9/9 + (9 × (9 + 9) × (9 + 9) − 99) := (9 × ((9 + 9) × (9 + 9) − 9)) − (99 + 9)/9 := (9 + 9)/9 + ((9 × ((9 + 9) × (9 + 9) − 9)) − 9) 77/7 := 777 + ((((7 + 7)/7) Ï 2819 := 11 × (1 + 1)(1+1) 1+1+1 ) − 7) +1+1+1 Ï 2824 := ((1 + 1 + 111) × (1 + ((1 + 1) × (1 + 11)))) − 1 Ï 2829 := (1 + (11 + 11)) × (1 + (1 + 111+1 )) := 2 + (((22 × 22×(2+2) ) + 2)/2) := 2 × (2 × (222 + 222 )) := (22 + 2/2) × ((22/2)2 + 2) := 3 + (((33/3 + 3)3 ) + (3 × (33 − 3))) := 3 + (3333 − ((3 − 3/3)3×3 )) := 3 + (3 × (((3 + 3)3 − 3) + 33+3 )) := 4 + ((4 × 4 × 4 × 44) − 4/4) := 4 + ((4 × 4 × 4 × 44) + 4) := 4/4 + 4 × (4 × 4 × 44 + 4) − 4 := 55 + (5 × 555 − (55/5)) := 55 − ((5 × (55 + 5)) + 5/5) := 55 + (5 × 555 − 5/5) := 66/6 + (6 × (6 × (66 + 6 + 6))) := 6 + ((6 × (6 × (66 + 6 + 6))) + ((66 − 6)/6)) := ((66/6 + 6) + 6) × ((666/6 + 6) + 6) := 77 + (7 × 7 × (7 × 7 + 7) − ((7 + 7)/7)) := (7/7 + 7) × (((77 − 7)/7) + 7 × 7 × 7) := 7 + (7 × 7 × (7 × 7 + 7) + 77 + 7/7) := 88/8 + ((88 × ((8 + 8 + 8) + 8)) − 8) := 8 + (88 × ((8 + 8 + 8) + 8)) := 8 + ((((8 × 8 × 88) + 8)/((8 + 8)/8)) + 8/8) := (9 + 9)/9 + (9 × (9 + 9) × (9 + 9) − 99) := (9 × ((9 + 9) × (9 + 9) − 9)) − 99/9 := ((99 + 9)/9) + (9 × (9 + 9) × (9 + 9) − 99) Ï 2820 := (1 + 11) × (11 + ((1 + 1) × (1 + 111))) Ï 2825 := (1 + 1 + 111) × (1 + ((1 + 1) × (1 + 11))) Ï 2830 := 1 + ((1 + (11 + 11)) × (1 + (1 + 111+1 ))) := 2 × (22 × 22+2+2 + 2) := 2/2 + (2 × (2 × (222 + 222 ))) := 2 + (2 × ((2 × (222 + 222 )) + 2)) := 3 + (33 × 33 + (3 × 3 + 3)3 ) := 3 × 33 + ((33/3 + 3)3 ) := 3 + ((3 × (((3 + 3)3 − 3) + 33+3 )) + 3/3) := 4 + (4 × 4 × 4 × 44) := 4 + (((4 × 4 × 4 × 44) + 4/4) + 4) := 4 × (4 × 4 × 44 + 4) − (4 + 4)/4 := 55 − ((5 × (55 + 5)) + 5) := 5 × (555 + 5 + 5) := 55 + 5 × 555 := 6 + ((6 × (6 × (66 + 6 + 6))) + 6) := 6 + ((6 × (6 × (66 + 6 + 6))) + (66/6)) := ((6 + 6)/6)6 + ((66 × (6 × 6 + 6)) − 6) := 77 + (7 × 7 × (7 × 7 + 7) − 7/7) := 777 + (((7 + 7)/7)77/7 ) := 7 + ((77/7 × (((7 + 7)/7)7+7/7 )) + 7) := ((8 × 8 × 88) + 8)/((8 + 8)/8) := 8 + ((88 × ((8 + 8 + 8) + 8)) + 8/8) := ((8 + 8)/8) × ((88 × (8 + 8) − 8/8) + 8) := (9/9 + 9) × ((999/9 + 9 × (9 + 9)) + 9) := (9 × ((9 + 9) × (9 + 9) − 9)) − 9/9 − 9 := ((9 − 99)/(9 + 9)) + (9 × ((9 + 9) × (9 + 9) − 9)) Ï 2821 := 1 + ((1 + 11) × (11 + ((1 + 1) × (1 + 111)))) Ï 2826 := 11 × (1 + (1 + 1)(1+1) 1+1+1 Ï 2831 := 1 + (1 + ((1 + (11 + 11)) × (1 + (1 + 111+1 )))) )−1 2 := 2 + ((((22 × 22×(2+2) ) + 2)/2) + 2) := 2 + (2 × (2 × (222 + 22 ))) := 2 + ((22 + 2/2) × ((22/2)2 + 2)) := 3333 − ((3 − 3/3)3×3 ) := 3 × (((3 + 3)3 − 3) + 33+3 ) := 3 + ((((33/3 + 3)3 ) + 3 × 33 ) + 3) := 4 + ((4 × 4 × 4 × 44) + 4/4) := (44 − 4)/4 + (4 × 4 × 4 × 44) := 4 + 44/4 × (4/4 + 44 ) 5 := 55 + (5/5 − ((5 × (55 + 5)) + 5)) := 5 + (5/5 − (5 × (55 + 5))) := 55 + (5 × 555 + 5/5) := (6/6 + 6) × ((6 × 66 + 6/6) + 6) := 666 + 6 × 6 × (66 − 6) := 66 + ((6/6 + 6) × (6 × 66 − 6/6)) 7 := 77 + 7 × 7 × (7 × 7 + 7) := (7 − 7/7) × (((7 + 7)/7) + 7 × 7 × 7) := (7 × (7 × (7 × 7 + 7) + 7 + 7)) − 77/7 := 8/8 + (((8 × 8 × 88) + 8)/((8 + 8)/8)) := 8 + ((88 × ((8 + 8 + 8) + 8)) + ((8 + 8)/8)) := 8 + (((88 × ((8 + 8 + 8) + 8)) − 8/8) + 8) := ((9/9 + 9 × 9) + 9) × (((99 + 99)/9) + 9) := (9 × ((9 + 9) × (9 + 9) − 9)) − 9 := ((9 − 9 × 9)/(9 + 9)) + (9 × ((9 + 9) × (9 + 9) − 9)) Ï 2822 := (1 + (11 × (1 + (1 + 1)11−1−1 )))/(1 + 1) := 2 + (2 × (22 × 2 3 2+2+2 + 2)) 3 := 3 × 3 + (((33/3 + 3) ) − 3) := 4 + ((4 × 4 × 4 × 44) + (4 + 4)/4) 5 5 Ï 2827 := 11 × (1 + (1 + 1)(1+1) := 22/2 × (2 2×(2+2) 1+1+1 Ï 2832 := (1 + 1) × ((1 + 11) × (111+1 − (1 + 1 + 1))) ) := 2 × (2 × ((222 + 222 ) + 2)) + 2/2) 3 := 3/3 + (3 × (((3 + 3) − 3) + 3 3+3 )) 4 := 44/4 × (4/4 + 4 ) 5 := (3 × (33+3 + (3 + 3)3 )) − 3 := 4 × (4 × 4 × 44 + 4) := 5 + ((5 − (5 + 5)/(5 + 5)) + 5) := 5 + ((5 + 5)/5 − (5 × (55 + 5))) := 55 + (5 × 555 + ((5 + 5)/5)) := 6 + (((6 × (6 × (66 + 6 + 6))) + ((6 + 6)/6)) + 6) := 6 + ((6/6 + 6) × ((6 × 66 + 6/6) + 6)) := 66 + ((66 × (6 × 6 + 6)) − 6) := 7/7 + 7 × 7 × (7 × 7 + 7) + 77 := 7 + ((7 × 7 × (7 × 7 + 7) − 7/7) + 77) := (7/7 + 7) × (7 × 7 × 7 + (77/7)) := 8 + (((8 + 8)/8) × (88 × (8 + 8) − 8/8)) := 88/8 + (88 × ((8 + 8 + 8) + 8)) := 8 + ((88 × ((8 + 8 + 8) + 8)) + 8) := 9 + ((99/9 + 9 + 9) × (99 − ((9 + 9)/9))) := 9/9 + ((9 × ((9 + 9) × (9 + 9) − 9)) − 9) := (9 × ((9 + 9) × (9 + 9) − 9)) − (9 + 9 + 9)/9 198 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2833 := ((1 + 1) × ((1 + 1 + 11) × (111 − 1 − 1))) − 1 2 2 Ï 2838 := 11 × (1 + 1 + (1 + 1)(1+1) 2×(2+2) 1+1+1 Ï 2843 := ((1 + 11) × (11 + ((1 + 1) × (1 + 1 + 111)))) − 1 ) := 2 + ((((22 × (22×(2+2) + 2)) + 2)/2) + 2) := ((22 + 2/2) ) + ((2 × (22 + 2)) ) := 22 × ((2 := 3/3 + ((3 × (33+3 + (3 + 3)3 )) − 3) := 3 + (3 × (33+3 + (3 + 3)3 )) := 3 × 33 + ((33/3 + 3)3 ) := 4/4 + 4 × (4 × 4 × 44 + 4) := 44/4 × ((4 + 4)/4 + 44 ) := 4 × 4 + (44/4 × (4/4 + 44 )) := 5 + ((5 × 555 − ((5 + 5)/5)) + 55) := 5 × 5 + (((5 − 55 )/(5 + 5)) + 55 ) := 55 − ((5 × 55 + ((5 + 5)/5)) + 5) + 2)/2) := 66 + (((66 × (6 × 6 + 6)) − 6) + 6/6) := 66 + (66 × (6 × 6 + 6)) := (6 × ((6 × (66 + 6 + 6)) + 6)) − 6/6 := 7 + ((7 − 7/7) × (((7 + 7)/7)7 + 7 × 7 × 7)) := ((7/7 − 7) + 7 × 7) × (77 − 77/7) := 7/7 + (7 × (7 × (7 × 7 + 7) + 7 + 7)) := 8 + (((88 × ((8 + 8 + 8) + 8)) + 8/8) + 8) := ((8 + 8)/8) × (88 × (8 + 8) + 88/8) := 8 + (((88 × ((8 + 8 + 8) + 8)) + (88/8)) + 8) := (9 × ((9 + 9) × (9 + 9) − 9)) − (9 + 9)/9 := ((9 + 9 + 9)/9) + (9 × ((9 + 9) × (9 + 9) − 9)) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) − 9/9) Ï 2834 := (1 + 1) × ((1 + 1 + 11) × (111 − 1 − 1)) Ï 2839 := 1111 + ((1 + 11)1+1+1 ) 2×(2+2) Ï 2844 := (1 + 11) × (11 + ((1 + 1) × (1 + 1 + 111))) := 2 × (((2 + 2 + 2)2 + 2)2 − 22) := (22/2 + 2) × (222 − (2 + 2)) := ((22 × (2 := (3 × (33 + 3)) + ((33/3 + 3)3 ) := (3 × 3 + 3)3 + 3333/3 := 3 × ((33+3 + (3 + 3)3 ) + 3) := (4 + 4)/4 + 4 × (4 × 4 × 44 + 4) := 4 + (44 + 4/4) × (44 − 4)/4 := 44 + (4 × (444 + 44 )) + 2)) + 2)/2 := 5 + ((5 × 555 − 5/5) + 55) := 55 − (5 × 55 + (55/5)) := 55 − ((5 × 55 + 5/5) + 5) := (6/6 + 6 + 6) × (6 × 6 × 6 + (6 + 6)/6) := 66 + ((66 × (6 × 6 + 6)) + 6/6) := 6 × ((6 × (66 + 6 + 6)) + 6) := 777 + 7 × 7 × (7 × 7 − 7) − 7/7 := 7 + ((7/7 + 7) × (7 × 7 × 7 + (77/7))) := (7 + 7)/7 + (7 × (7 × (7 × 7 + 7) + 7 + 7)) := ((8 + 8)/8) × ((88 × (8 + 8) + 8/8) + 8) := 8 + ((((88 × ((8 + 8 + 8) + 8)) − 8/8) + 8) + 8) := ((8 × (8 × 88 + 8)) − 8)/((8 + 8)/8) := (9 × ((9 + 9) × (9 + 9) − 9)) − 9/9 := 9 × 9 × 9 + (9999/9 + 999) := 9 + (9 × ((9 + 9) × (9 + 9) − 9)) Ï 2835 := 1 + ((1 + 1) × ((1 + 1 + 11) × (111 − 1 − 1))) := (((22 × (2 2×(2+2) + 2)) − 2)/2) − 2 Ï 2840 := 1 + (1111 + ((1 + 11)1+1+1 )) := 2 + (22 × ((2 2×(2+2) Ï 2845 := 1 + ((1 + 11) × (11 + ((1 + 1) × (1 + 1 + 111)))) := 2/2 + (2 × (((2 + 2 + 2)2 + 2)2 − 22)) + 2)/2)) := 3 × (33+3 + (3 + 3)3 ) := 3 × 33 + (((33/3 + 3)3 ) − 3) := 3/3 + (3 × ((33+3 + (3 + 3)3 ) + 3)) := (44 + 4/4) × (44 − 4)/4 := 4 + 4 × (4 × 4 × 44 + 4) + 4 := 444 + (((4 − 4/4) + 4)4 ) := 5 + (5 × 555 + 55) := 55 − ((5 × 55 + 5) + 5) := 55 − (5 × 55 + 5) := 66 + ((66 × (6 × 6 + 6)) − (6 × 6/(6 + 6))) := 66 + ((66 × (6 × 6 + 6)) + ((6 + 6)/6)) := 6/6 + (6 × ((6 × (66 + 6 + 6)) + 6)) := 777 + 7 × 7 × (7 × 7 − 7) := (7/7 + 7) × ((77 + 7)/7 + 7 × 7 × 7) := 7 + (((7/7 − 7) + 7 × 7) × (77 − 77/7)) := 8 + ((88 × ((8 + 8 + 8) + 8)) + (88/8)) := 8 + (((88 × ((8 + 8 + 8) + 8)) + 8) + 8) := 8/8 + (((8 × (8 × 88 + 8)) − 8)/((8 + 8)/8)) := 9 × ((9 + 9) × (9 + 9) − 9) := 9 × 99 + ((((9 + 9)/9)99/9 ) − 99) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) + 9/9) Ï 2836 := (1 + 1) × (1 + ((1 + 1 + 11) × (111 − 1 − 1))) Ï 2841 := 1 + (1 + (1111 + ((1 + 11)1+1+1 ))) Ï 2846 := ((1 + 1 + 11) × (((1 + 1) × (111 − 1)) − 1)) − 1 := (22 × 222) − 222/2 := 2 + (((22 × (2 := 3/3 + (3 × (33+3 + (3 + 3)3 )) := 3 + ((3 × (33+3 + (3 + 3)3 )) + 3) := 3 + (((33/3 + 3)3 ) + 3 × 33) := 4 + 4 × (4 × 4 × 44 + 4) := 444 + ((((4 − 4/4) + 4)4 ) − 4) := 4 + ((44/4 × ((4 + 4)/4 + 44 )) + 4) := 5 + ((5 × 555 + 55) + 5/5) := 55 + (5 × 555 + (55/5)) := 55 + (5/5 − (5 × 55 + 5)) := ((6 + 6)/6) + (66 × (6 × 6 + 6)) := 66 + ((66 × (6 × 6 + 6)) + (6 × 6/(6 + 6))) := (6 + 6)/6 + (6 × ((6 × (66 + 6 + 6)) + 6)) := 7/7 + (7 × 7 × (7 × 7 − 7) + 777) := (7 × (7 × (7 × 7 + 7) + 7 + 7)) − 7/7 := 7 + (((7/7 + 7) × (7 × 7 × 7 + (77/7))) + 7) := 8 + ((((8 × 8 × 88) + 8)/((8 + 8)/8)) + 8) := 8 + ((((88 × ((8 + 8 + 8) + 8)) + 8/8) + 8) + 8) := 8 + (((8 + 8)/8) × (88 × (8 + 8) + 88/8)) := 9/9 + (9 × ((9 + 9) × (9 + 9) − 9)) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) − ((9 + 9 + 9)/9)) := 99/9 + (9 × ((9 + 9) × (9 + 9) − 9)) 6 Ï 2837 := 1111 + (((1 + 11)1+1+1 ) − (1 + 1)) := ((22 × (2 2×(2+2) + 2)) − 2)/2 3 3 := 3 + (((33/3 + 3) ) + (3 × (3 + 3))) := 4 + 4 × (4 × 4 × 44 + 4) + 4/4 5 5 2×(2+2) + 2)) + 2)/2) Ï 2842 := 1 + (1 + (1 + (1111 + ((1 + 11)1+1+1 )))) := 2 + ((22 × ((2 2×(2+2) + 2)/2)) + 2) 3 := 3 + (3333/3 + (3 × 3 + 3) ) Ï 2847 := (1 + 1 + 11) × (((1 + 1) × (111 − 1)) − 1) := 2222 + ((2/2 + 2 + 2)2+2 ) := 3 + (3 × ((33+3 + (3 + 3)3 ) + 3)) 4 := 4 + (44/4 × ((4 + 4)/4 + 4 )) 5 := 2 + (2 × (((2 + 2 + 2)2 + 2)2 − 22)) := 4 × (4 × 4 × 44 + 4 + 4) − 4/4 5 := 5 × 5 + (5 − (5 + 5)/(5 + 5)) := 5 + ((5 × 5 − (5 + 5)/(5 + 5)) + 5 ) := 55 + ((5 + 5)/5 − (5 × 55 + 5)) := 66 + ((66 × (6 × 6 + 6)) − 6/6) := 6 + ((66 × (6 × 6 + 6)) + ((6 + 6)/6)6 ) := 666 + ((66 × 66 + 6)/((6 + 6)/6)) := 77 + ((7/7 + 7) × (7 × 7 × 7 + ((7 + 7)/7))) := 7 × (7 × (7 × 7 + 7) + 7 + 7) := 7 + ((7/7 + 7) × ((77 + 7)/7 + 7 × 7 × 7)) := (8 × ((8 × 88 + 8)/((8 + 8)/8))) − 88/8 := 8 + (((8 + 8)/8) × ((88 × (8 + 8) + 8/8) + 8)) := (8 × ((8 × 88 + 8)/((8 + 8)/8))) − 8/8 := (9 + 9)/9 + (9 × ((9 + 9) × (9 + 9) − 9)) := (99 − 9/9) × (99/9 + 9 + 9) := ((99 + 9)/9) + (9 × ((9 + 9) × (9 + 9) − 9)) 199 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2848 := 1 + ((1 + 1 + 11) × (((1 + 1) × (111 − 1)) − 1)) := 2 2+2 × ((2 × 2 × 2 × 22) + 2) Ï 2853 := ((1 + 1)1+11 ) − (11 × (1 + 1 + 111)) := 2/2 + (((2 × 22) + 2) × (2 2+2+2 − 2)) Ï 2858 := (1 + 1) × (((1 + 1 + 11) × (111 − 1)) − 1) := 2 + ((22 + 2) × ((22/2)2 − 2)) := (33 − 3/3) × ((3 × (33 + 3)) − 3/3) := 3 × (((33+3 + (3 + 3)3 ) + 3) + 3) := 3 + (((33/3 + 3)3 ) + 333/3) := 4 × (4 × 4 × 44 + 4 + 4) := 4 + (44/4 × ((44 − 4/4) + 4)) := (44 × (44 + 4)/4) − (4 + 4)/4 := 55 − (5 × 55 + ((5 + 5)/5)) := 5 + (55 − (5 × 55 + ((5 + 5)/5))) := 5 + ((55 − (5 × 55 + ((5 + 5)/5))) + 5) := 6 + (((66 × (6 × 6 + 6)) + ((6 + 6)/6)6 ) + 6) := 666 + ((6 × 6/(6 + 6))6/6+6) := (6 + 6)/6 + ((6/6 + 6) × (6 × 66 + 6 + 6)) := 7 + ((7 × (7 × (7 × 7 + 7) + 7 + 7)) − 7/7) := 77/7 + (7 × (7 × (7 × 7 + 7) + 7 + 7)) := 7 × 7 + (((77/7 − 7) + 7 × 7)(7+7)/7 ) := 8 × ((8 × 88 + 8)/((8 + 8)/8)) := 8/8 + (((8 × (8 × 88 + 8)) + 8)/((8 + 8)/8)) := (8 + 8)/8 + ((8 + 8 + 8) × (888/8 + 8)) := (9 − 9/9) × ((((9 × 9 × 9 × 9) + 9)/(9 + 9)) − 9) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) + 9) := 9 × (9 × 9 + 9) + (((9 + 9)/9)99/9 ) Ï 2849 := 11 × (1 + 1 + 1 + (1 + 1)(1+1) 2×(2+2) 1+1+1 ) Ï 2854 := (1 + 1) × (((1 + 11) × (111+1 − (1 + 1))) − 1) 2 Ï 2859 := ((1 + 1) × ((1 + 1 + 11) × (111 − 1))) − 1 := ((22 + 2) × ((22/2) − 2)) − 2 := (22 × ((2 × 22+2+2 ) + 2)) − 2/2 := 3 + ((((33/3 + 3) ) + 3 × 33) + 3) := ((33/3 + 3)3 ) + ((333 − 3)/3) := 3 + ((33 + 3/3) × (3 × 33 + 3)) := 44/4 × ((44 − 4/4) + 4) := 4 × 4 + (44/4 × ((4 + 4)/4 + 44 )) := (44 × (44 + 4)/4) − 4/4 := 55 − (5 × 55 + 5/5) := 5 + (55 − (5 × 55 + 5/5)) := 5 + ((55 − (5 × 55 + 5/5)) + 5) := (6/6 + 6) × (6 × 66 + (66/6)) := ((66 − 6)/6) + (6 × ((6 × (66 + 6 + 6)) + 6)) := 6 + (((6 × 6/(6 + 6))6/6+6) + 666) := 7 + (7 × (7 × (7 × 7 + 7) + 7 + 7)) := 7 × 7 × (7 × 7 + 7) + (777 − 7)/7 := 77 + (7 × (7 × (7 × 7 + 7) + 7) − (77/7)) := 8/8 + (8 × ((8 × 88 + 8)/((8 + 8)/8))) := ((8 + 8)/8) × ((88 × (8 + 8) + 88/8) + 8) := 88/8 + (8 × ((8 × 88 + 8)/((8 + 8)/8))) := 99/9 × ((9 × (9 + 9) − ((9 + 9)/9)) + 99) := 9 + (((9 × ((9 + 9) × (9 + 9) − 9)) + 9/9) + 9) := (99 × (99/9 + 9 + 9)) − (99 + 9)/9 := 22/2 × ((2 + 2/2) + 2) 3 Ï 2850 := 11 + (1111 + ((1 + 11)1+1+1 )) 2 := 2 + 2 × (22 − 2) + 2 22/2 Ï 2855 := 111 + (1 + 1 + 1 + 11)1+1+1 Ï 2860 := (1 + 1) × ((1 + 1 + 11) × (111 − 1)) 2 := (33 + 3) × (3 × 33 − (3/3 + 3)) 4 := 4/4 + (44/4 × ((4 − 4/4) + 4)) 5 := ((22 + 2) × ((22/2) − 2)) − 2/2 := 22 × ((2 × 22+2+2 ) + 2) := 333/3 + ((33/3 + 3)3 ) := (33 − 3/3) × ((333 − 3)/3) 4 := (44 × (4 + 4)/4) − (4/4 + 4) 5 := 44 × (44 + 4)/4 := 5 − 5 × 55 := 5 + (5 − 5 × 55) := 5 + ((55 − 5 × 55) + 5) := 6 + (6 × ((6 × (66 + 6 + 6)) + 6)) := 6 + ((6/6 + 6) × (6 × 66 + (66/6))) := (66 − 6/6) × (((6 + 6)/6 + 6 × 6) + 6) := (7/7 + 7 × 7) × ((7/7 + 7 × 7) + 7) := 777/7 + 7 × 7 × (7 × 7 + 7) := 7 + ((7 × (7 × (7 × 7 + 7) + 7 + 7)) + (77/7)) := (8 + 8)/8 + (8 × ((8 × 88 + 8)/((8 + 8)/8))) := ((8 + 8 + 8) × (888/8 + 8)) − 8/8 := (8/8 + 8 × 8) × (88/((8 + 8)/8)) := (9/9 + 9 + 9) × (9 × (9 + 9) − ((99 + 9)/9)) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) + (99/9)) := 99/9 × ((9 × (9 + 9) − 9/9) + 99) Ï 2851 := 1 + (11 + (1111 + ((1 + 11)1+1+1 ))) Ï 2856 := (1 + 1) × ((1 + 11) × (111+1 − (1 + 1))) 2 Ï 2861 := 1 + ((1 + 1) × ((1 + 1 + 11) × (111 − 1))) := (22 + 2) × ((22/2) − 2) := 2/2 + (22 × ((2 × 22+2+2 ) + 2)) := 3 + ((33 − 3/3) × ((3 × (33 + 3)) − 3/3)) := (33 + 3/3) × (3 × 33 + 3) := ((33/3 + 3)3 ) + (3 × (33 + 3 + 3)) := 4 + 4 × (4 × 4 × 44 + 4 + 4) − 4/4 := (44 × (44 + 4)/4) − 4 := 4/4 + (44 × (44 + 4)/4) := 55 + (5/5 − 5 × 55) := 5 + ((5/5 − 5 × 55) + 55 ) := 55 + (55/5 − 5 × 55) := 6 + ((6 × ((6 × (66 + 6 + 6)) + 6)) + 6/6) := (6/6 + 6) × (6 × 66 + 6 + 6) := 6 + (((6/6 + 6) × (6 × 66 + (66/6))) + 6) := 7 + ((7 × (7 × (7 × 7 + 7) + 7 + 7)) + ((7 + 7)/7)) := (7/7 + 7) × (7 × 7 × 7 + 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7) + (777 − 7)/7) := (((8 × (8 × 88 + 8)) + 8)/((8 + 8)/8)) − 8/8 := (8 + 8 + 8) × (888/8 + 8) := 8/8 + ((8/8 + 8 × 8) × (88/((8 + 8)/8))) := 9 + ((99 − 9/9) × (99/9 + 9 + 9)) := ((9/9 + 9 + 9) + 9) × (999/9 − 9) := (((9 + 9)/9)9 ) + 9 × (9 × (9 + 9) + 99) := 2 + (22/2 × ((2 2×(2+2) + 2/2) + 2)) Ï 2852 := (1 + (11 + 11)) × (1 + (1 + (1 + 111+1 ))) 2+2+2 Ï 2857 := 1 + ((1 + 1) × ((1 + 11) × (111+1 − (1 + 1)))) 2 Ï 2862 := (1 + 1) × (1 + ((1 + 1 + 11) × (111 − 1))) := 2/2 + ((22 + 2) × ((22/2) − 2)) := 2 + (22 × ((2 × 22+2+2 ) + 2)) := (3 × (33 + 3)) + ((33/3 + 3)3 ) := 3/3 + ((33 + 3/3) × (3 × 33 + 3)) := 3 × ((3 + 3) × ((3 + 3) × 33 − 3)) := 4 + 4 × (4 × 4 × 44 + 4 + 4) := 4/4 + ((44 × (44 + 4)/4) − 4) := (4 + 4)/4 + (44 × (44 + 4)/4) := ((2 × 22) + 2) × (2 − 2) 5 5 := 5 + ((5 + 5)/5 − 5 × 55) := 5 + (((5 + 5)/5 − 5 × 55) + 5 ) := 55 + (((55 + 5)/5) − 5 × 55) := 6 + ((6 × ((6 × (66 + 6 + 6)) + 6)) + ((6 + 6)/6)) := 6/6 + ((6/6 + 6) × (6 × 66 + 6 + 6)) := 6 + ((6/6 + 6) × (6 × 66 + 6 + 6)) := 7 + ((7/7 + 7 × 7) × ((7/7 + 7 × 7) + 7)) := 7 + (7 × 7 × (7 × 7 + 7) + 777/7) := ((8 × (8 × 88 + 8)) + 8)/((8 + 8)/8) := 8/8 + ((8 + 8 + 8) × (888/8 + 8)) := (8 × 8 − 88/8) × ((8 − 88)/8 + 8 × 8) := 9 + (((9 × ((9 + 9) × (9 + 9) − 9)) − 9/9) + 9) := ((99 + 99)/9) + (9 × ((9 + 9) × (9 + 9) − 9)) := (99 × (99/9 + 9 + 9)) − 9 7 := 77 + (((7 + 7 + 7)/7) + 7 × (77 + 7)) 200 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2863 := 1 + ((1 + 1) × (1 + ((1 + 1 + 11) × (111 − 1)))) 2+2+2 Ï 2868 := (1 + 11) × (((1 + 1) × (111+1 − 1)) − 1) 2 Ï 2873 := (1 + 1 + 11) × ((1 + 1) × 111 − 1) := (2 + 2 + 2) × (22 − (2 + 2 + 2)) := (22/2 + 2) × (222 − 2/2) := 3 + ((33 − 3/3) × ((333 − 3)/3)) := (33 × (3 × 33 + 3 + 3)) − 3 := 3 + ((33 × (3 × 33 + 3 + 3)) − 3/3) := 4 + ((44 × (44 + 4)/4) − 4/4) := 4 + ((44 × (44 + 4)/4) + 4) := 4 + (((4/4 + 4)4+4/4 ) − 44 ) := 55 + ((((5 − 55 )/(5 + 5)) − 5) + 55 ) := 55 + (((5 − 55 )/(5 + 5)) + 55 ) := 55 + ((5 × (5 − 55)) − ((5 + 5)/5)) := (6/6 + 6) × (((6 × 66 + 6/6) + 6) + 6) := 66 + ((6 × (6 × (66 + 6 + 6))) − 6) := 66 + ((6 × (6 × (66 + 6 + 6))) − 6/6) := 7 × (7 × 7 × 7 + 77) − 77 := 77 + (7 × (7 × (7 × 7 + 7) + 7) − ((7 + 7)/7)) := (7 × 7 × (7 + 7)) + ((7 + 7 + 7)/7)7 := 8 + (((8 + 8 + 8) × (888/8 + 8)) − 8/8) := 8 + ((8/8 + 8 × 8) × (88/((8 + 8)/8))) := 8/8 + ((8 × (8 × (8 × 8 − 8) − 88)) − 8) := 9/9 + ((99 × (99/9 + 9 + 9)) − 9) := (99 × (99/9 + 9 + 9)) − (9 + 9 + 9)/9 := (9 + 9)/9 + (99 × (99/9 + 9 + 9)) := 2 + ((22 × ((2 × 2 ) + 2)) + 2/2) Ï 2864 := (1 + 1) × ((111 × (1 + 1 + 11)) − 11) Ï 2869 := 1 + ((1 + 11) × (((1 + 1) × (111+1 − 1)) − 1)) 2 Ï 2874 := 1 + ((1 + 1 + 11) × ((1 + 1) × 111 − 1)) := (222 × (22/2 + 2)) − 22 := 2/2 + ((2 + 2 + 2) × (22 − (2 + 2 + 2))) := (2/2 + 2) × ((2 × (222 − (2 + 2))) − 2) := 3 + (((33/3 + 3)3 ) + (3 × (33 + 3 + 3))) := 3/3 + ((33 × (3 × 33 + 3 + 3)) − 3) := 3 + (33 × (3 × 33 + 3 + 3)) := 4 + (44 × (44 + 4)/4) := ((4/4 + 4)4+4/4 ) − 44 := (4 × (4 × (4 × 44 + 4))) − ((4 + 4)/4 + 4) 5 5 5−5/5 := 55 + ((5 × (5 − 55)) − 5/5) := 5 + ((5 × (5 − 55)) − (55/5)) := 5 − ((5 − 5/5) := ((6 + 6)/6 + 6) × (6 × (66 − 6) − ((6 + 6)/6)) := ((66 − 6) × (6 × 6 + 6 + 6)) − 66/6 := 7/7 + (7 × (7 × 7 × 7 + 77) − 77) ) := 66 + (6 × (6 × (66 + 6 + 6))) := 77 + (7 × (7 × (7 × 7 + 7) + 7) − 7/7) := (7 − 7/7) × (7 × (77 − 7) − (77/7)) := 8 + ((8 + 8 + 8) × (888/8 + 8)) := (88/8 + 8) × ((88 − 8/8) + 8 × 8) := (8 + 8)/8 + ((8 × (8 × (8 × 8 − 8) − 88)) − 8) := 9 + (((9 × ((9 + 9) × (9 + 9) − 9)) + (99/9)) + 9) := (9/9 + 9 + 9) × (9 × (9 + 9) − (99/9)) := 9 + ((9 + 9) × (9 × (9 + 9) − 9) + 999/9) Ï 2865 := 1 + ((1 + 1) × ((111 × (1 + 1 + 11)) − 11)) := 2/2 + ((222 × (22/2 + 2)) − 22) Ï 2870 := (11 − 1) × (((1 + 1) × (1 + 11)1+1 ) − 1) Ï 2875 := ((1 + 1)1+11 ) − 11 × 111 := (2/2 + 2 + 2) × (((22 + 2)2 ) − 2) := 2 + ((22/2 + 2) × (222 − 2/2)) := 3 + (3 × ((3 + 3) × ((3 + 3) × 3 − 3))) := (33 × (3 × 33 + 3 + 3)) − 3/3 := 3 + ((33 × (3 × 33 + 3 + 3)) + 3/3) := 4 + ((44 × (44 + 4)/4) + 4/4) := 4/4 + (((4/4 + 4)4+4/4 ) − 44 ) := 4 + (44/4 × ((4/4 + 44 ) + 4)) := 5 + (((55 − 5 × 55) + 5) + 5) := 55 + ((5 × (5 − 55)) − 5) := 55 + (5 × (5 − 55)) := 6 + ((((6 × 6/(6 + 6))6/6+6) + 666) + 6) := (6 × 6 − 6/6 + 6) × (((6 + 6)/6)6 + 6) := 66 + ((6 × (6 × (66 + 6 + 6))) + 6/6) := ((7 + 7)/7) + 7 × (7 × (7 × 7 + 7)) − 7 := 77 + 7 × (7 × (7 × 7 + 7) + 7) := 7777/7 + ((7 + 7) × (77 + 7 × 7)) := (8 − 8/8 + 8) × (8 × (8 + 8 + 8) − 8/8) := (8 − 88)/8 + (8 × (8 × (8 × 8 − 8) − 88)) := (8 × 8 × 8 × 8) − 88/8 × 888/8 := 999/9 + (9 + 9) × (9 × (9 + 9) − 9) := (99 × (99/9 + 9 + 9)) − 9/9 := (9 + 9) × 99 + (9999/9 − (9 + 9)) 3 7 Ï 2866 := (1 + 1) × (1 + ((111 × (1 + 1 + 11)) − 11)) Ï 2871 := 11 × (((1 + 1) × ((11 × (1 + 11)) − 1)) − 1) Ï 2876 := 1 + (((1 + 1)1+11 ) − 11 × 111) := (2 × ((2 + 2 + 2)2 + 2)2 ) − 22 := (2/2 + 2) × (2 × 222 − 22/2) := 2 × (((2 + 2 + 2)2 + 2)2 − (2 + 2 + 2)) := 3 + (((33 − 3/3) × ((333 − 3)/3)) + 3) := 33 × (3 × 33 + 3 + 3) := 33 + (((33/3 + 3)3 ) + 3 × 33) := 4 + ((44 × (44 + 4)/4) + (4 + 4)/4) := 44/4 × ((4/4 + 44 ) + 4) := (4 × (4 × (4 × 44 + 4))) − 4 5 := 55 + ((5 × (5 − 55)) + 5/5) := 5 + ((55/5 − 5 × 55) + 5 ) := 55 + (((5 × (5 − 55)) − 5) + 5/5) := 6 + ((66 − 6/6) × (((6 + 6)/6 + 6 × 6) + 6)) := 666/6 + ((66 × (6 × 6 + 6)) − (6 + 6)) := 6 + ((6 × 6 − 6/6 + 6) × (((6 + 6)/6)6 + 6)) := (7 × 7 × (7 + 7)) + (((7 + 7 + 7)/7)7 − 7) := 7/7 + (7 × (7 × (7 × 7 + 7) + 7) + 77) := (7 × (7 × 77 − ((7 + 7)/7)7 )) − 7/7 := 8 + (((8 + 8 + 8) × (888/8 + 8)) + ((8 + 8)/8)) := (88 − 8/8) × ((8/8 + 8 + 8 + 8) + 8) := 8 × 8 + (((8 × 8 × 88) − 8)/((8 + 8)/8)) := ((999 + 9)/9) + (9 + 9) × (9 × (9 + 9) − 9) := 99 × (99/9 + 9 + 9) := 99 + ((((9 + 9)/9)99/9 ) + 9 × 9 × 9) Ï 2867 := ((1 + 11) × (((1 + 1) × (111+1 − 1)) − 1)) − 1 Ï 2872 := ((1 + 1 + 11) × ((1 + 1) × 111 − 1)) − 1 Ï 2877 := 1 + (1 + (((1 + 1)1+11 ) − 11 × 111)) := 2/2 + ((2 × ((2 + 2 + 2)2 + 2)2 ) − 22) := 2 + ((2/2 + 2 + 2) × (((22 + 2)2 ) − 2)) := (2 × ((2 + 2 + 2)2 + 2)2 ) − 22/2 := (33/3)3 + (3 × ((3 − 3/3)3×3 )) := 3/3 + (33 × (3 × 33 + 3 + 3)) := ((33 + 3) × (3 × 33 − 3)) − 3 := (44/4 × ((4/4 + 44 ) + 4)) − 4 := (4 × (4 × (4 × 44 + 4))) − 4 − 4 := 4/4 + ((4 × (4 × (4 × 44 + 4))) − 4) 5 5 := 55 + (5 − (5 + 5)/(5 + 5)) := 5 − ((((5 − (5 + 5)/5) ) + 5) + 5) := 55 − (((5 − (5 + 5)/5)5 ) + 5) := (66/6 + 6 × 6) × (66 − 6 + 6/6) := ((6 + 6)/6)6 + (6 × (6 × (66 + 6 + 6))) := 666/6 + ((66 × (6 × 6 + 6)) − 6) 5 5 7 := 7 × (7 × 77 − ((7 + 7)/7)7 ) := 77/7 + ((7/7 + 7) × (7 × 7 × 7 + 7 + 7)) := ((7 + 7)/7) + 7 × 7 × (7 × 7 + 7) := 88/8 + ((8 + 8 + 8) × (888/8 + 8)) := (8 × (8 × (8 × 8 − 8) − 88)) − 8 := 8 + ((88/8 + 8) × ((88 − 8/8) + 8 × 8)) := 9/9 + (99 × (99/9 + 9 + 9)) := (999/9 × (((9 − 9/9) + 9) + 9)) − 9 99/9 := 9 + ((((9 + 9)/9) ) + 9 × (9 × 9 + 9)) 201 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2878 := (1 + 1) × (((11 − 1) × (1 + 11)1+1 ) − 1) 2 Ï 2883 := 1 + ((1 + 1) × (11 × ((11 × (1 + 11)) − 1))) Ï 2888 := (1 + 1) × (1 + (111 × (1 + 1 + 11))) := ((2 + 2 + 2) × (22 − (2 + 2))) − 2 := 2/2 + ((22 × (2 + 2 + 2)) − 22) := 2 × ((2 + 2 + 2)2 + 2)2 := 3/3 + (((33 + 3) × (3 × 33 − 3)) − 3) := 3 + ((33 + 3) × (3 × 33 − 3)) := 3 + (((333 × (33 − 3/3)) − 3)/3) := (4 × (4 × (4 × 44 + 4))) − (4 + 4)/4 := 4 + ((4 × (4 × (4 × 44 + 4))) − 4/4) := 4 + ((4 × (4 × (4 × 44 + 4))) + 4) := 5 + (((5 × (5 − 55)) − ((5 + 5)/5)) + 55 ) := 55 + (5/5 − ((5 − (5 + 5)/5)5 )) := 5 + ((5/5 − ((5 − (5 + 5)/5)5 )) + 55 ) := ((66 − 6) × (6 × 6 + 6 + 6)) − (6 + 6)/6 := 666/6 + (66 × (6 × 6 + 6)) := ((6 + 6)/6 + 6) × (6 × (66 − 6) + 6/6) := 7/7 + (7 × (7 × 77 − ((7 + 7)/7) )) := (7 × ((7 × 7 × 7 − 7) + 77)) − (7/7 + 7) := (7/7 − 77) × (77/7 − 7 × 7) := (8 × (8 × (8 × 8 − 8) − 88)) − (8 + 8)/8 := 88/8 + ((8 × (8 × (8 × 8 − 8) − 88)) − 8) := 8 + (8 × (8 × (8 × 8 − 8) − 88)) := 9 + ((9/9 + 9 + 9) × (9 × (9 + 9) − (99/9))) := 99 + (99 × (9 + 9 + 9) + 999/9) := (9 − 9/9) × ((9/9 + 9 + 9)(9+9)/9 ) 2 7 Ï 2879 := ((1 + 1) × ((11 − 1) × (1 + 11)1+1 )) − 1 2 Ï 2884 := (1 + 1) × (111 + 111+1+1 ) 2 2 Ï 2889 := 1 + ((1 + 1) × (1 + (111 × (1 + 1 + 11)))) := 2/2 + (2 × ((2 + 2 + 2)2 + 2)2 ) := ((2 + 2 + 2) × (22 − (2 + 2))) − 2/2 := 2 × (((2 + 2 + 2) + 2) − 2) := ((33 + 3) × (3 × 33 − 3)) − 3/3 := 3 + (((33 + 3) × (3 × 33 − 3)) + 3/3) := 3 × (3 × (333 − (3 × 3 + 3))) := (4 × (4 × (4 × 44 + 4))) − 4/4 := 4 + (4 × (4 × (4 × 44 + 4))) := 4 + (((4 × (4 × (4 × 44 + 4))) + 4/4) + 4) := 5 + (((5 × (5 − 55)) − 5/5) + 55 ) := 5 + ((((5 × (5 − 55)) − 5/5) + 55 ) + 5) := 55 − (555/5 + 5 × 5 × 5) := (6 × 666) − (6666 + 6)/6 := 6 + ((66 × (6 × 6 + 6)) + 666/6) := 7 + (7 × 7 × (7 × 7 + 7) + ((7 + 7)/7) ) := (7 × ((7 × 7 × 7 − 7) + 77)) − 7 := (7 × ((7 × 7 × 7 − 7) + 77)) − (7 + 7)/7 := (8 × (8 × (8 × 8 − 8) − 88)) − 8/8 := 8 × 8 + (((8 × 8 × 88) + 8)/((8 + 8)/8)) := 8 + ((8 × (8 × (8 × 8 − 8) − 88)) + 8/8) := (9 + 9) × 99 + (9999/9 − 9) := (9 + 9 + 9) × ((99 − 9/9) + 9) := ((66 − 6) × (6 × 6 + 6 + 6)) − 6/6 7 := 9 + ((99 × (99/9 + 9 + 9)) − 9/9) Ï 2880 := (1 + 1) × ((11 − 1) × (1 + 11)1+1 ) Ï 2885 := ((1 + 1) × (111 × (1 + 1 + 11))) − 1 Ï 2890 := (1 + 1) × (1 + (1 + (111 × (1 + 1 + 11)))) := (2 + 2 + 2) × (22 − (2 + 2)) := (222 × (22/2 + 2)) − 2/2 := 2 + (2 × ((2 + 2 + 2)2 + 2)2 ) := (33 + 3) × (3 × 33 − 3) := ((333 × (33 − 3/3)) − 3)/3 := 3 + (((333 × (33 − 3/3)) + 3)/3) := 4 × (4 × (4 × 44 + 4)) := 4 + ((4 × (4 × (4 × 44 + 4))) + 4/4) := (44 − 4)/4 + (4 × (4 × (4 × 44 + 4))) 2 5 5 := (5 × (555 + 5 × 5)) − 5 − 5 := 5 + ((5 × (5 − 55)) + 5 ) := 5 + (((5 × (5 − 55)) + 5 ) + 5) := (66 − 6) × (6 × 6 + 6 + 6) := (6 × 666) − (6666/6) := 6 + ((66 × (6 × 6 + 6)) + (666 + 6)/6) := (7 × 7 − 7/7) × (77/7 + 7 × 7) := 7/7 + ((7 × ((7 × 7 × 7 − 7) + 77)) − 7) := (7 × ((7 × 7 × 7 − 7) + 77)) − 7/7 := 8 × (8 × (8 × 8 − 8) − 88) := ((8 − 88/8) + 8) × (8 × (8 × 8 + 8) + 8/8) := 8 + ((8 × (8 × (8 × 8 − 8) − 88)) + ((8 + 8)/8)) := 9 + (99 × (99/9 + 9 + 9)) := (9 + 9) × 99 + ((9999 + 9)/9 − 9) := 9/9 + ((9 + 9 + 9) × ((99 − 9/9) + 9)) Ï 2881 := 1 + ((1 + 1) × ((11 − 1) × (1 + 11)1+1 )) Ï 2886 := (1 + 1) × (111 × (1 + 1 + 11)) Ï 2891 := ((1 + 11) × (((1 + 1) × 111+1 ) − 1)) − 1 := 2/2 + ((2 + 2 + 2) × (222 − (2 + 2))) := 222 × (22/2 + 2) := ((2 + 2 + 2) × (222 − 2)) − 2/2 := 3/3 + ((33 + 3) × (3 × 33 − 3)) := (33 − 3/3) × 333/3 := 33/3 + ((33 + 3) × (3 × 33 − 3)) := 4/4 + (4 × (4 × (4 × 44 + 4))) := 4 + ((4 × (4 × (4 × 44 + 4))) + (4 + 4)/4) := 44/4 + (4 × (4 × (4 × 44 + 4))) := 5 + (((5 × (5 − 55)) + 5/5) + 55 ) := 5 × 555 + 555/5 := 5 + (5 × 555 + 555/5) := 6/6 + ((66 − 6) × (6 × 6 + 6 + 6)) := 6 + ((66 − 6) × (6 × 6 + 6 + 6)) := 6 + ((6 × 666) − (6666/6)) := ((7/7 − 77) × (77/7 − 7 × 7)) − 7 := (7/7 + 77) × (7 × 7 − (77 + 7)/7) := 7 × ((7 × 7 × 7 − 7) + 77) := 8/8 + (8 × (8 × (8 × 8 − 8) − 88)) := 888/8 × (((((8 + 8)/8) + 8) + 8) + 8) := 88/8 + (8 × (8 × (8 × 8 − 8) − 88)) := 9 + ((99 × (99/9 + 9 + 9)) + 9/9) := 999/9 × (((9 − 9/9) + 9) + 9) := (9 − ((9 + 9)/9)) × ((((9 + 9)/9)9 ) − 99) Ï 2882 := (1 + 1) × (11 × ((11 × (1 + 11)) − 1)) Ï 2887 := 1 + ((1 + 1) × (111 × (1 + 1 + 11))) Ï 2892 := (1 + 11) × (((1 + 1) × 111+1 ) − 1) := (222 × (2 + 2 + 2)) − 22 := 2/2 + (222 × (22/2 + 2)) := (2 + 2 + 2) × (222 − 2) := 3 + (((33 + 3) × (3 × 33 − 3)) − 3/3) := ((333 × (33 − 3/3)) + 3)/3 := (3/3 + 3) × (33+3 − (3 + 3)) := (4 + 4)/4 + (4 × (4 × (4 × 44 + 4))) := 4 × 444 + 4444/4 := (4 × ((4 × (4 × 44 + 4)) + 4)) − 4 5 5 := 5 − ((5 − (5 + 5)/5) ) := 5 + (5 − ((5 − (5 + 5)/5) )) := 5 + ((55 − ((5 − (5 + 5)/5)5 )) + 5) := (6 + 6)/6 + ((66 − 6) × (6 × 6 + 6 + 6)) := 6 + (((66 − 6) × (6 × 6 + 6 + 6)) + 6/6) := 6 + (((66 − 6) × (6 × 6 + 6 + 6)) + 6) 5 5 := 77/7 × (((7 × 7 × 77 − 7)/(7 + 7)) − 7) := 7 + ((7 × 7 − 7/7) × (77/7 + 7 × 7)) := 7/7 + (7 × ((7 × 7 × 7 − 7) + 77)) := (8 + 8)/8 + (8 × (8 × (8 × 8 − 8) − 88)) := 8 + ((8 × (8 × (8 × 8 − 8) − 88)) − 8/8) := ((8 × (8 × 88 + 8)) + 88)/((8 + 8)/8) := 99/9 + (99 × (99/9 + 9 + 9)) := 9 × (9 + 9) × (9 + 9) − (99/9 + 9 + 9) := (9 + 9) × 99 + ((9999 − 9)/9) 202 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2893 := 11 × (((1 + 1) × (11 × (1 + 11))) − 1) Ï 2898 := ((1 + 1 + 11) × (1 + (1 + 1) × 111)) − 1 Ï 2903 := ((1 + 1) × (11 × (11 × (1 + 11)))) − 1 := 2/2 + ((2 + 2 + 2) × (22 − 2)) := (2/2 + 2) × (2 × 22 − 2) := (222 × (2 + 2 + 2)) − 2/2 := 3/3 + ((3/3 + 3) × (33+3 − (3 + 3))) := 3 × (3 × 333 − 33) := ((3/3 + 3) × (33+3 − 3)) − 3/3 2 2 4 := 44/4 × (((44 − 4/4) + 4) + 4) := ((4 − 4)/4) × ((4 + 4)/4 + 44) := (44 × ((44 + 4 + 4)/4)) − 4/4 := 55 + (55/5 − ((5 − (5 + 5)/5)5 )) := (5 × (555 + 5 × 5)) − (5 + 5)/5 := 55 + (5 − 5555)/(5 × 5) := 66/6 × (6 × (6 × 6 + 6) + (66/6)) := (6/6 + 6) × ((6 × 66 + 6 + 6) + 6) := ((6 − 6/6)6−6/6 ) − (6 × 6 × 6 + 6) := (7 + 7)/7 + (7 × ((7 × 7 × 7 − 7) + 77)) := 7 + (7 × ((7 × 7 × 7 − 7) + 77)) := (77 + 7)/7 + (7 × ((7 × 7 × 7 − 7) + 77)) := 88/8 × (((8 + 8) × (8 + 8) − 8/8) + 8) := (88/8 − 8) × ((88 × 88 − (8 + 8))/8) := 88 + ((88 × ((8 + 8 + 8) + 8)) − 8/8) := (9 + 9) × 99 + 9999/9 := (9 + 9) × (9 × (9 + 9) − 9/9) := 9 × (9 + 9) × (9 + 9) − ((99 + 9 + 9)/9) Ï 2894 := 1 + (11 × (((1 + 1) × (11 × (1 + 11))) − 1)) Ï 2899 := (1 + 1 + 11) × (1 + (1 + 1) × 111) Ï 2904 := (1 + 1) × (11 × (11 × (1 + 11))) := 2 + ((2 + 2 + 2) × (22 − 2)) := (22/2 + 2) × (222 + 2/2) := 222 × (2 + 2 + 2) := (3 × (3 × 333 − 33)) − (3/3 + 3) := 3/3 + (3 × (3 × 333 − 33)) := (3/3 + 3) × (33+3 − 3) := (4 × ((4 × (4 × 44 + 4)) + 4)) − (4 + 4)/4 := 4 + ((4 × ((4 × (4 × 44 + 4)) + 4)) − 4/4) := 44 × ((44 + 4 + 4)/4) := (5 × (555 + 5 × 5)) − (5/5 + 5) := (5 × (555 + 5 × 5)) − 5/5 := 6 + (((6 + 6)/6 + 6) × (6 × (66 − 6) + 6/6)) := (6/6 + 6 + 6) × (6 × 6 × 6 + 6/6 + 6) := 7 + (((7 × 7 − 7/7) × (77/7 + 7 × 7)) + 7) := 7 + ((7 × ((7 × 7 × 7 − 7) + 77)) + 7/7) := 8 + (888/8 × (((((8 + 8)/8) + 8) + 8) + 8)) := 8 + ((8 × (8 × (8 × 8 − 8) − 88)) + (88/8)) := ((9 + 9)/9) × (9 × 9 × (9 + 9) − (99/9)) := 9/9 + ((9 + 9) × (9 × (9 + 9) − 9/9)) 2 Ï 2895 := 1 + (1 + (11 × (((1 + 1) × (11 × (1 + 11))) − 1))) Ï 2900 := 1 + ((1 + 1 + 11) × (1 + (1 + 1) × 111)) 2 := 5 + ((5 × (555 + 5 × 5)) − 5/5) := 66 × (((6 + 6)/6 + 6 × 6) + 6) := (7 − 7/7) × ((7 × (77 − 7) − 7) + 7/7) := 88 + (88 × ((8 + 8 + 8) + 8)) := 9 × (9 + 9) × (9 + 9) − (99 + 9)/9 Ï 2905 := 1 + ((1 + 1) × (11 × (11 × (1 + 11)))) := 2 + (((2 + 2 + 2) × (222 − 2)) + 2/2) := 2 × (((2/2 + 2) × 22 ) − 2) := 2/2 + (222 × (2 + 2 + 2)) := (3 × (3 × 333 − 33)) − 3 := (3/3 + 3) × (33+3 − (3/3 + 3)) := 3/3 + ((3/3 + 3) × (33+3 − 3)) := (4 × ((4 × (4 × 44 + 4)) + 4)) − 4/4 := 4 + (4 × ((4 × (4 × 44 + 4)) + 4)) := 4/4 + (44 × ((44 + 4 + 4)/4)) := (5 × (555 + 5 × 5)) − 5 := 5 × (555 + 5 × 5) := 5 + (5 × (555 + 5 × 5)) := 6 + (((66 × (6 × 6 + 6)) + 666/6) + 6) := (6 − ((6 + 6)/6)) × ((66 × 66 − 6)/6) := 6/6 + (66 × (((6 + 6)/6 + 6 × 6) + 6)) := 7 + ((7/7 − 77) × (77/7 − 7 × 7)) := (7/7 + 7 × 7) × (((7 + 7)/7 + 7 × 7) + 7) := 7 + ((7 × ((7 × 7 × 7 − 7) + 77)) + 7) := (8 − 8/8 + 8) × (8 × (8 + 8 + 8) + 8/8) := 88 + (((8 × 8 × 88) − 8)/((8 + 8)/8)) := 8/8 + ((88 × ((8 + 8 + 8) + 8)) + 88) := 9 + (999/9 × (((9 − 9/9) + 9) + 9)) := (9/9 + 99) × (99/9 + 9 + 9) := 9 × (9 + 9) × (9 + 9) − 99/9 Ï 2896 := 11 + (((1 + 1) × (111 × (1 + 1 + 11))) − 1) Ï 2901 := ((1 + 1) × ((11 × (11 × (1 + 11))) − 1)) − 1 2 Ï 2906 := (1 + 1) × (1 + (11 × (11 × (1 + 11)))) := 2 + (((2 + 2 + 2) × (22 − 2)) + 2) := (2/2 + 2) × (2 × 22 − 2/2) := 2 + (222 × (2 + 2 + 2)) := 3/3 + ((3 × (3 × 333 − 33)) − 3) := 3 + (3 × (3 × 333 − 33)) := (3 + 3) × 33 + ((33/3 + 3)3 ) := 4 × ((4 × (4 × 44 + 4)) + 4) := 4 + ((4 × ((4 × (4 × 44 + 4)) + 4)) + 4/4) := (4 + 4)/4 + (44 × ((44 + 4 + 4)/4)) := 5/5 + ((5 × (555 + 5 × 5)) − 5) := 5/5 + (5 × (555 + 5 × 5)) := 5 + ((5 × (555 + 5 × 5)) + 5/5) := (6 × 666) + ((66 − 6666)/6) := (6666 × 6/(6 + 6)) − (6 × (66 + 6)) := 6 + ((6 − ((6 + 6)/6)) × ((66 × 66 − 6)/6)) := 7 + ((7 × ((7 × 7 × 7 − 7) + 77)) − ((7 + 7)/7)) := ((77 − 7)/7) + (7 × ((7 × 7 × 7 − 7) + 77)) := 7 + (((7 × ((7 × 7 × 7 − 7) + 77)) + 7/7) + 7) := 8 + ((8 × (8 × (8 × 8 − 8) − 88)) + 8) := (88/8 − 8) × ((88 × 88 − 8)/8) := 88 + ((88 × ((8 + 8 + 8) + 8)) + ((8 + 8)/8)) := 9 × (9 + 9) × (9 + 9) − (99/9 + 9) := 9 + (((9999 − 9)/9) + (9 + 9) × 99) := 9 × (9 + 9) × (9 + 9) − 9/9 − 9 2 Ï 2897 := 11 + ((1 + 1) × (111 × (1 + 1 + 11))) Ï 2902 := (1 + 1) × ((11 × (11 × (1 + 11))) − 1) 2 Ï 2907 := 1 + ((1 + 1) × (1 + (11 × (11 × (1 + 11))))) := 22/2 + (222 × (22/2 + 2)) := (22 × (2 + 2 + 2)) − 2 := 2 + ((222 × (2 + 2 + 2)) + 2/2) := (3 × (3 × 333 − 33)) − 3/3 := 3 + ((3 × (3 × 333 − 33)) + 3/3) := 3 × ((33 × (33 + 3)) − 3) := 4/4 + (4 × ((4 × (4 × 44 + 4)) + 4)) := 4 + (((44 − 4)/4) × ((4 + 4)/4 + 44)) := 4 + ((44 × ((44 + 4 + 4)/4)) − 4/4) := 5 + (((55 − ((5 − (5 + 5)/5)5 )) + 5) + 5) := (5 + 5)/5 + (5 × (555 + 5 × 5)) := 5 × 5 + (55 − ((5 − (5 + 5)/5)5 )) := 6 + (((6 × 666) − (6666/6)) + 6) := 66 + ((66 × (6 × 6 + 6)) + ((6 + 6)/6)6 ) := (66/6 + 6) × ((666/6 − 6) + 66) := 7 + ((7 × ((7 × 7 × 7 − 7) + 77)) − 7/7) := 77/7 + (7 × ((7 × 7 × 7 − 7) + 77)) := ((7 + 7)/7 + 7 × 7) × ((7/7 + 7 × 7) + 7) := 88 + ((8 × 8 − 88/8)(8+8)/8 ) := 88 + (((8 + 8)/8) × (88 × (8 + 8) − 8/8)) := (88/8 − 8) × ((88 × 88 + 8)/8) := 9 × (9 + 9) × (9 + 9) − (9/9 + 9 + 9) := 9 + (9999/9 + (9 + 9) × 99) := 9 × (9 + 9) × (9 + 9) − 9 203 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2908 := (1 + 1) × (1 + (1 + (11 × (11 × (1 + 11))))) := 2 + ((222 × (2 + 2 + 2)) + 2) := 3/3 + (3 × ((33 × (33 + 3)) − 3)) Ï 2913 := 1 + ((1 + 1) × ((1 + 1 + 11) × (1 + 111))) := 2 + ((2 + 2 + 2) × (222 + 2)) := 2/2 + ((22/2 + 2) × (222 + 2)) 3 := 3 + ((3 × (33 × (33 + 3))) − 3/3) := (3 × (3 × (33 + 3))) − 3 4 4 Ï 2918 := 1 + (1 + (((111 − 1)/(1 + 1) − 1)1+1 )) 4 := 4 + (44 × ((44 + 4 + 4)/4)) := 4 + ((((4 − 4/4) + 4) ) + 4 ) := 4 + ((44 − 4/4 + 4) × (44 − 4 − 4)/4) := 5 + 55 + (5 − 5555)/(5 × 5) := 55 − ((55 + 55 )/(5 + 5 + 5)) := 5 + (55 − ((55 + 55 )/(5 + 5 + 5))) := (6 − ((6 + 6)/6)) × ((66 × 66 + 6)/6) := (6 × ((6 + 6) × (6 × 6 + 6))) − 666/6 := (6 + 6)/6 + ((66 − 6 − 6)(6+6)/6 ) := 777 + (((7 + 7 + 7)/7)7 − (7 × 7 + 7)) := 7/7 + (7 × (((77 × 77 − 7)/(7 + 7)) − 7)) := (77 × (7 × 7 − 77/7)) − (7/7 + 7) := 88 + (((8 × 8 × 88) + 8)/((8 + 8)/8)) := 8 × 8 × 8 + ((8 − 8/8)8×8/(8+8) ) := 8 + ((88/8 − 8) × (88 × 88 + 8 + 8)/8) := 9/9 + (9 × (9 + 9) × (9 + 9) − 9) := 9 × (9 + 9) × (9 + 9) − (9 + 9 + 9)/9 := (9 + 9)/9 + 9 × (9 + 9) × (9 + 9) Ï 2909 := 1 + ((1 + 1) × (1 + (1 + (11 × (11 × (1 + 11)))))) Ï 2914 := (1 + 1) × (1 + ((1 + 1 + 11) × (1 + 111))) Ï 2919 := 11111 − ((1 + 1)1+1+11 ) := 2 + (((222 × (2 + 2 + 2)) + 2/2) + 2) := ((2 + 2 + 2) × (222 + 2)) − 2 := 2 + (((2 + 2 + 2) × (222 + 2)) + 2/2) := ((3/3 + 3) × (33+3 − 3/3)) − 3 := 3/3 + ((3 × (33 × (33 + 3))) − 3) := 3 + (3 × (33 × (33 + 3))) := 4 + ((44 × ((44 + 4 + 4)/4)) + 4/4) := (44 − 4/4 + 4) × (44 − 4 − 4)/4 := 4 + (44/4 × (((4/4 + 44 ) + 4) + 4)) := 55 + ((5 − 5/5) × (5/5 − 55)) := 55 × 55 − 555/5 := 5 + (55 × 55 − 555/5) := ((6 − 6/6)6−6/6 ) − 6 × 6 × 6 := ((66 − 6 − 6) := ((7 × 7 − ((7 + 7)/7) + 7)(7+7)/7 ) − 7 := 7 + (((7 + 7)/7 + 7 × 7) × ((7/7 + 7 × 7) + 7)) := (77 × (7 × 7 − 77/7)) − 7 := (8 × 8 − ((8 + 8)/8)) × (8 × 8 − (8/8 + 8 + 8)) := (8 − 8/8) × ((8 × 8 × 8 − (88 + 8)) + 8/8) := 9 × (9 + 9) × (9 + 9) − (9 + 9)/9 := ((9 + 9 + 9)/9) + 9 × (9 + 9) × (9 + 9) := 8 + ((88/8 − 8) × ((88 × 88 − 8)/8)) := (9 + 9)/9 + (9 × (9 + 9) × (9 + 9) − 9) Ï 2910 := (1 + 1) × (((1 + 1 + 11) × (1 + 111)) − 1) := (2/2 + 2) × (2 × 222 + 2) := 3 + (3 × ((33 × (33 + 3)) − 3)) := ((4 + 4)/4 + 4) × ((44 × 44 + 4)/4) := 5 + ((5 × (555 + 5 × 5)) + 5) := ((66 − 6 − 6)(6+6)/6 ) − 6 := (7 − 7/7) × ((7 × (77 − 7) − 7) + ((7 + 7)/7)) := (88/8 − 8) × (88 × 88 + 8 + 8)/8 := ((9 + 9 + 9)/9) + (9 × (9 + 9) × (9 + 9) − 9) Ï 2911 := ((1 + 1) × ((1 + 1 + 11) × (1 + 111))) − 1 := 2/2 + ((2/2 + 2) × (2 × 222 + 2)) := 3 + ((3 × ((33 × (33 + 3)) − 3)) + 3/3) := 444/4 + (4 × (444 + 44 )) (6+6)/6 ) − (6 + 6)/6 := 666/6 + (6 × (6 × (66 + 6 + 6))) Ï 2915 := 11 × (1 + ((1 + 1) × (11 × (1 + 11)))) Ï 2920 := 1 + (11111 − ((1 + 1)1+1+11 )) := 22/2 + (222 × (2 + 2 + 2)) := 2 + (((2 + 2 + 2) × (222 + 2)) + 2) := (3 × (33 × (33 + 3))) − 3/3 := (3/3 + 3) × (33+3 + 3/3) := 44/4 × (((4/4 + 44 ) + 4) + 4) := 4 + (4 × ((4 − 4/4)4+(4+4)/4 )) := 55 × (55 − (5 + 5)/5) := 5 + (55 × (55 − (5 + 5)/5)) := ((66 − 6 − 6) (6+6)/6 := 6 + (((66 − 6 − 6)(6+6)/6 ) − ((6 + 6)/6)) ) − 6/6 := 777 + (((7 + 7 + 7)/7)7 − 7 × 7) := 7/7 + ((77 × (7 × 7 − 77/7)) − 7) := 88/8 × (((8 + 8) × (8 + 8) + 8/8) + 8) := (8 × (888 − 8 × 8 × 8)) − 88 := 9 × (9 + 9) × (9 + 9) − 9/9 := (9 − 9/9) × (((9 × 9 × 9 × 9) + 9)/(9 + 9)) Ï 2916 := ((111 − 1)/(1 + 1) − 1)1+1 Ï 2921 := 1 + (1 + (11111 − ((1 + 1)1+1+11 ))) := (2 + 2 + 2) × (222 + 2) := (22 + 2/2) × ((22×(2+2) − 2)/2) 3 := 3 + (((3 × (33 × (33 + 3))) − 3/3) + 3) := 3 × (3 × (33 + 3)) 4+(4+4)/4 := 4 × ((4 − 4/4) := ((44 + 4/4) × (44 + 4)/4) − 4 ) (5+5)/5 := (55 − 5/5) := 5 + ((55 − 5/5)(5+5)/5 ) := (66 − 6 − 6)(6+6)/6 := 6 + (((66 − 6 − 6)(6+6)/6 ) − 6/6) := (7 × 7 − ((7 + 7)/7) + 7)(7+7)/7 := ((7 + 7)/7)7 + 7 × (7 × (7 × 7 + 7) + 7) := 8 + (((88 × ((8 + 8 + 8) + 8)) − 8/8) + 88) := ((8 − 88)/8 + 8 × 8)(8+8)/8 := ((8 − 8/8 + 8) + 8) × (8 × (8 + 8) − 8/8) := ((9 − 99)/(9 + 9)) + 9 × (9 + 9) × (9 + 9) := 9 × (9 + 9) × (9 + 9) := 9 × (9 + 9) × (9 + 9) + ((9 × 9 + 9)/(9 + 9)) := ((55 − 5/5)(5+5)/5 ) − 5 := 6/6 + (((66 − 6 − 6)(6+6)/6 ) − 6) := (7 × 7 − (7/7 + 7)) × ((7/7 − 7) + 77) Ï 2912 := (1 + 1) × ((1 + 1 + 11) × (1 + 111)) := (22/2 + 2) × (222 + 2) := (3/3 + 3) × (33+3 − 3/3) Ï 2917 := 1 + (((111 − 1)/(1 + 1) − 1)1+1 ) Ï 2922 := (1 + 1) × ((11 × (1 + (11 × (1 + 11)))) − (1 + 1)) := 2/2 + ((2 + 2 + 2) × (222 + 2)) := (2/2 + 2) × ((2 × (222 + 2)) + 2) 3 := 3 + ((3 × (33 × (33 + 3))) + 3) := 3/3 + (3 × (3 × (33 + 3))) 4 4 4 := 4 × (((4 × (4 × 44 + 4)) + 4) + 4) := 4 + (((((4 − 4/4) + 4) ) + 4 ) + 4 ) := (44/4 × ((44 − 4)/4 + 44 )) − 4 := 55 + (((5 − 55 )/(5 + 5 + 5)) − 5) := 55 + ((5 − 55 )/(5 + 5 + 5)) := 5 + (((5 − 55 )/(5 + 5 + 5)) + 55 ) := (6 + 6)/6 + (((66 − 6 − 6)(6+6)/6 ) − 6) := 6/6 + ((66 − 6 − 6)(6+6)/6 ) := 6 + ((66 − 6 − 6)(6+6)/6 ) := 7 × (((77 × 77 − 7)/(7 + 7)) − 7) := 7/7 + ((7 × 7 − ((7 + 7)/7) + 7)(7+7)/7 ) := (7 × (7 × (7 + 7) + 7)) + ((7 + 7 + 7)/7)7 := 8 + ((88 × ((8 + 8 + 8) + 8)) + 88) := 8/8 + (((8 − 88)/8 + 8 × 8)(8+8)/8 ) := (8 × (8 × 8 × 8 − 8)) + ((8 − 8888)/8) := (9 − 9/9) × (((9 × 9 × 9 × 9) − 9)/(9 + 9)) := 9/9 + 9 × (9 + 9) × (9 + 9) := 9 + (9 × (9 + 9) × (9 + 9) − ((9 + 9 + 9)/9)) 204 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2923 := 11 + ((1 + 1) × ((1 + 1 + 11) × (1 + 111))) Ï 2933 := 1 + ((1 + 1) × (1 + (1 + ((1 + 11) × (1 + 111+1 ))))) Ï 2928 := (1 + 1) × ((1 + 11) × (1 + 111+1 )) := 2 + ((22 + 2/2) × ((22×(2+2) − 2)/2)) := (2 + 2 + 2) × (222 + 2 + 2) := 2/2 + (2 × (((2 + 2 + 2)2 + 2)2 + 22)) := 3 + ((3/3 + 3) × (33+3 + 3/3)) := (3/3 + 3) × (33+3 + 3) := 3 × 3 × 333 − ((3/3 + 3)3 ) := 44 + ((4 × (4 × (4 × 44 + 4))) − 4/4) := 4 × ((4 × (4 × 44 − 4)) + 44) := (44/4 × (44/4 + 44 )) − 4 := 55 + (((5 + 5) × (5 − 5 × 5)) − ((5 + 5)/5)) := 55 − (((5/5 + 5) × ((5 + 5)/5)5 ) + 5) := 55 − ((5/5 + 5) × ((5 + 5)/5)5 ) := 6 + (((66 − 6 − 6)(6+6)/6 ) + 6/6) := 6 + (((66 − 6 − 6)(6+6)/6 ) + 6) := 6 + (((66 − 6 − 6)(6+6)/6 ) + (66/6)) := 7 + ((7 × 7 − ((7 + 7)/7) + 7)(7+7)/7 ) := (7 + 7)/7 + (77 × (7 × 7 − 77/7)) := 7 × (7 × 7 × 7 + 77) − 7 := 8 + (88/8 × (((8 + 8) × (8 + 8) + 8/8) + 8)) := (8 + 8) × ((888/8 + 8 × 8) + 8) := ((8 + 8) × ((88 + 88) + 8)) − 88/8 := 9 + (9 × (9 + 9) × (9 + 9) − ((9 + 9)/9)) := ((99 + 9)/9) + 9 × (9 + 9) × (9 + 9) := 9 + ((9 × (9 + 9) × (9 + 9) − 9/9) + 9) Ï 2924 := (1 + 1) × ((11 × (1 + (11 × (1 + 11)))) − 1) := 2 × (2 × (((2/2 + 2)2+2+2 ) + 2)) := (3/3 + 3) × ((33+3 − 3/3) + 3) := 44 + (4 × (4 × (4 × 44 + 4))) Ï 2929 := 1 + ((1 + 1) × ((1 + 11) × (1 + 111+1 ))) 2 := 2 + (2 × (((2 + 2 + 2)2 + 2)2 + 22)) := 2/2 + ((2 + 2 + 2) × (22 + 2 + 2)) := 3/3 + ((3/3 + 3) × (3 3+3 Ï 2934 := (1 + 1) × (11 + ((1 + 1 + 11) × (1 + 111))) := 3 × (((33 × (33 + 3)) + 3) + 3) + 3)) 4 := 4 + ((44/4 × ((44 − 4)/4 + 44 )) + 4) := 4 + ((44 + 4/4) × (4 + 4)/4) 5 := 55 + (((5 + 5) × (5 − 5 × 5)) − 5/5) := 5 + ((((5 + 5) × (5 − 5 × 5)) − 5/5) + 5 ) := ((6 × 6 + 6/6) + 6) × (((6 + 6)/6) + 66) := 6 + ((((66 − 6 − 6)(6+6)/6 ) + 6/6) + 6) := ((6 − 6/6) × 666) − 6 × 66 := (77 × (7 × 7 − 77/7)) − (7 + 7)/7 := 7 × (7 × 7 × 7 + 77) − 77/7 := 7/7 + (7 × (7 × 7 × 7 + 77) − 7) := 8 + (((8 − 88)/8 + 8 × 8)(8+8)/8 ) := 8 + (((8 − 8/8 + 8) + 8) × (8 × (8 + 8) − 8/8)) := 888 + ((8 × (8 + 8) × (8 + 8)) − ((8 + 8)/8)) := 9 + (9 × (9 + 9) × (9 + 9) − 9/9) := 9 × (9 + 9) × (9 + 9) + ((99 + 9 + 9)/9) := 9 + (9 × (9 + 9) × (9 + 9) + 9) Ï 2925 := (1 + 1 + 11) × (1 + ((1 + 1) × (1 + 111))) Ï 2930 := (1 + 1) × (1 + ((1 + 11) × (1 + 111+1 ))) 2 := 55 − ((555/5 + 55) + 5 × 5) Ï 2935 := 1 + ((1 + 1) × (11 + ((1 + 1 + 11) × (1 + 111)))) := 22 + ((22 × (2 + 2 + 2)) − 2/2) := 2 + ((2 + 2 + 2) × (22 + 2 + 2)) := 222/2 + 2 × 2 × 222 − 2/2 := 3 × ((33 × (33 + 3)) + 3) := 3 + ((3 × (33 × (33 + 3))) + 33/3) := 3 + ((3/3 + 3) × ((33+3 + 3/3) + 3)) := (44 + 4/4) × (44 + 4)/4 := 4 + (44/4 × ((44 − 4)/4 + 44 )) := ((4 + 4) × (444/4 + 44 )) − 4/4 := 5 × ((555 + 5 × 5) + 5) := 5 + (((5 + 5) × (5 − 5 × 5)) + 55 ) := 5 × (((5 + 5)/5)5 + 555) := (6/6 − 66) × (66 − 666/6) := 6 + (((6 × 6 + 6/6) + 6) × (((6 + 6)/6) + 66)) := 6/6 + (((6 − 6/6) × 666) − 6 × 66) := (77 × (7 × 7 − 77/7)) − 7/7 := ((7 − 77)/7) + 7 × (7 × 7 × 7 + 77) := (7 + 7)/7 + (7 × (7 × 7 × 7 + 77) − 7) := (8/8 + 8 × 8) × (8 × 8 − (88/8 + 8)) := 8 + (((8 − 8888)/8) + (8 × (8 × 8 × 8 − 8))) := 888 + ((8 × (8 + 8) × (8 + 8)) − 8/8) 2 99/9 := 9 + 9 × (9 + 9) × (9 + 9) := 9 × 99 + ((((9 + 9)/9) Ï 2926 := (1 + 1) × (11 × (1 + (11 × (1 + 11)))) 2 := 9 + ((9 × (9 + 9) × (9 + 9) + 9/9) + 9) ) − 9) Ï 2931 := 1 + ((1 + 1) × (1 + ((1 + 11) × (1 + 111+1 )))) Ï 2936 := (1 + 1) × (((1 + 1 + 11) × (1 + 1 + 111)) − 1) := 22 + (22 × (2 + 2 + 2)) := 2 + (((2 + 2 + 2) × (22 + 2 + 2)) + 2/2) := 222/2 + 2 × 2 × 222 := 3/3 + (3 × ((33 × (33 + 3)) + 3)) := 3 + ((3/3 + 3) × (33+3 + 3)) := 3 + (3 × 3 × 333 − ((3/3 + 3)3 )) := 44/4 × ((44 − 4)/4 + 44 ) := 4 + ((4 × 4 × 4 × 44) + 444/4) := (4 + 4) × (444/4 + 44 ) := 5 + (((55 − 5/5)(5+5)/5 ) + 5) := 5 + ((((55 − 5/5)(5+5)/5 ) + 5) + 5) := 5 × 5 + (((55 − 5/5)(5+5)/5 ) − 5) := ((6 + 6)/6 + 6) × ((6 × (66 − 6) + 6/6) + 6) 2 := ((6 + 6)/6 + 6 × 6) × (66/6 + 66) := 6 + ((6/6 − 66) × (66 − 666/6)) := 77 × (7 × 7 − 77/7) := 7 × (7 × 7 × 7 + 77) − ((7 + 7)/7 + 7) := 7 + (7 × (7 × 7 × 7 + 77) − (77/7)) := 8 × 88 + (((8 + 8)/8) × 8888/8) := (88/8 − 8) × (((88 × 88 + 8)/8) + 8) := 888 + (8 × (8 + 8) × (8 + 8)) := 9 + (9 × (9 + 9) × (9 + 9) + 9/9) := 9 + ((9 × (9 + 9) × (9 + 9) − ((9 + 9 + 9)/9)) + 9) := 9 + (9 × (9 + 9) × (9 + 9) + (99/9)) Ï 2927 := 1 + ((1 + 1) × (11 × (1 + (11 × (1 + 11))))) 2 Ï 2932 := (1 + 1) × (1 + (1 + ((1 + 11) × (1 + 111+1 )))) 2 2 Ï 2937 := 11 × (1 + ((1 + 1) × (1 + (11 × (1 + 11))))) := 22 + ((22 × (2 + 2 + 2)) + 2/2) := 2 × (((2 + 2 + 2) + 2) + 22) := (2/2 + 2) × (2 × 222 + 22/2) := 33/3 + (3 × (33 × (33 + 3))) := (3/3 + 3) × ((33+3 + 3/3) + 3) := 33 × ((3 × (33 + 3)) − 3/3) := 444/4 + (4 × 4 × 4 × 44) := 4 + (4 × ((4 × (4 × 44 − 4)) + 44)) := 44/4 × (44/4 + 44 ) := 5 + ((((5 − 55 )/(5 + 5 + 5)) + 55 ) + 5) := 55 + (55 − (((5 − (5 + 5)/5)5 ) + 5)) := 55 + (55 − ((5 − (5 + 5)/5)5 )) := 6 + (((6 + 6)/6 + 6 × 6) × (66/6 + 66)) := (6666 × 6/(6 + 6)) − 6 × 66 := 7 × (7 × 7 × 7 + 77) − (7/7 + 7) := 77/7 + (77 × (7 × 7 − 77/7)) := 66/6 + ((66 − 6 − 6) (6+6)/6 ) := 7/7 + (77 × (7 × 7 − 77/7)) (8+8)/8 := 888/8 + (88 × ((8 + 8 + 8) + 8)) := 8 + ((((8 − 88)/8 + 8 × 8) := 99/9 + 9 × (9 + 9) × (9 + 9) := 9 + ((9 × (9 + 9) × (9 + 9) − ((9 + 9)/9)) + 9) 205 ) + 8) := 8/8 + ((8 × (8 + 8) × (8 + 8)) + 888) := 9 + (9 × (9 + 9) × (9 + 9) + ((99 + 9)/9)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2938 := (1 + 1) × ((1 + 1 + 11) × (1 + 1 + 111)) 2 Ï 2943 := (111 − 1 − 1) × (1 + 1 + 1)1+1+1 2+2+2 Ï 2948 := (1 + 1) × (11 × (1 + (1 + (11 × (1 + 11))))) := 22 × (22 × (2 + 2 + 2) + 2) := 22 + ((2 + 2 + 2) × (22 + 2)) := (((2 × 22) + 2) × 2 := 3/3 + (33 × ((3 × (33 + 3)) − 3/3)) := 3 × (3 × (333 − (3 + 3))) := 33 + ((3 × (33 × (33 + 3))) − 3/3) := 4/4 + (44/4 × (44/4 + 44 )) := (4 × (4 × ((4 × 44 + 4) + 4))) − 4/4 := 44 × (((44 − 4)/4) + 4) := 5 + (55 − ((5/5 + 5) × ((5 + 5)/5)5 )) := 55 − ((5 × 5 × 5 + ((5 + 5)/5)) + 55) := 55 − (((555 + 55)/5) + 55) := (6/6 + 6 + 6) × (((66 − 6)/6) + 6 × 6 × 6) := 6 + ((6666 × 6/(6 + 6)) − 6 × 66) := (66 + 6/6) × (((6 + 6)/6 + 6 × 6) + 6) := 7 × (7 × 7 × 7 + 77) − (7 + 7)/7 := (7 + 7 + 7)/7 + 7 × (7 × 7 × 7 + 77) := 7 + (7 × (7 × 7 × 7 + 77) + 7/7) := 888 + ((8 × (8 + 8) × (8 + 8)) + ((8 + 8)/8)) := ((8 + 8) × ((88 + 88) + 8)) − 8/8 := 88 + ((8/8 + 8 × 8) × (88/((8 + 8)/8))) := ((9 + 9)/9) × (9 × 9 × (9 + 9) + (99/9)) := 9 + ((9 × (9 + 9) × (9 + 9) + 9) + 9) := 9 + ((((9 + 9)/9)99/9 ) + 9 × 99) Ï 2939 := 1 + ((1 + 1) × ((1 + 1 + 11) × (1 + 1 + 111))) := 2 + ((2/2 + 2) × (2 × 222 + 22/2)) ) − 2/2 Ï 2944 := 1 + ((111 − 1 − 1) × (1 + 1 + 1)1+1+1 ) Ï 2949 := 11 × 111 + ((1 + 11)1+1+1 ) := ((2 × 22) + 2) × 22+2+2 := 2/2 + (22 × (22 × (2 + 2 + 2) + 2)) := 3/3 + (3 × (3 × (333 − (3 + 3)))) := 33 + (3 × (33 × (33 + 3))) := (44 × (4 − 4/4)4 ) − (4/4 + 4)4 := 4 × (4 × ((4 × 44 + 4) + 4)) := 4/4 + (44 × (((44 − 4)/4) + 4)) := 5 × 5 + (55 × 55 − 555/5) := 55 − ((5 × 5 × 5 + 55) + 5/5) := 55 − ((5 × ((5 × 5 + 5) + 5)) + 5/5) := ((6 × 6 + 6) × (((6 + 6)/6)6 + 6)) − 6/6 := ((6 + 6)/6)6 × (((66 − 6)/6) + 6 × 6) := 66 + ((66 × (6 × 6 + 6)) + 666/6) := 7 × (7 × 7 × 7 + 77) − 7/7 := 77/7 + (7 × (7 × 7 × 7 + 77) − 7) := 7 + (7 × (7 × 7 × 7 + 77) + ((7 + 7)/7)) := 8 + ((88/8 − 8) × (((88 × 88 + 8)/8) + 8)) := (8 + 8) × ((88 + 88) + 8) := 8 + ((((8 + 8) × ((88 + 88) + 8)) − (88/8)) + 8) := 9 + (((9 × (9 + 9) × (9 + 9) + 9/9) + 9) + 9) := 9 + ((99 − 9/9) × ((((99 + 9)/9) + 9) + 9)) 3 := 3 + ((3/3 + 3) × (3 3+3 − 3/3)) 99/9 := 9 × 99 + (((9 + 9)/9) ) Ï 2940 := (1 + 11) × (1 + ((1 + 1) × (1 + 111+1 ))) := (2 + 2 + 2) × ((222 + 2 + 2) + 2) Ï 2945 := 1 + (1 + ((111 − 1 − 1) × (1 + 1 + 1)1+1+1 )) := 2/2 + (((2 × 22) + 2) × 22+2+2 ) Ï 2950 := 1 + (11 × 111 + ((1 + 11)1+1+1 )) := 2 + (22 × (22 × (2 + 2 + 2) + 2)) := 3 + (((33/3 + 3) ) + 33 × (3 + 3)) := 3/3 + ((3 × (33 × (33 + 3))) + 33) := (4 − 4/4) × (4 × 44 − 44) := 4/4 + (4 × (4 × ((4 × 44 + 4) + 4))) := (4 + 4)/4 + (44 × (((44 − 4)/4) + 4)) := 55 − ((5 × 5 × 5 + 55) + 5) := 55 − (5 × 5 × 5 + 55) := (5 + 5) × ((5 × (55 + 5)) − 5) := (3/3 + 3) × ((3 3+3 + 3) + 3) 6 3 6−6/6 := (6 × (6 − 6 × 6)) + ((6 − 6/6) := 7 × (7 × 7 × 7 + 77) := 7 + (7 × (7 × 7 × 7 + 77) − ((7 + 7)/7)) := 777 + (((7 + 7 + 7)/7)7 − (7 + 7)) := 88 + (((8 × (8 × 88 + 8)) + 8)/((8 + 8)/8)) := 8/8 + ((8 + 8) × ((88 + 88) + 8)) := 8 + (((8 + 8) × ((88 + 88) + 8)) − ((8 + 8)/8)) := (99 − 9/9) × ((((99 + 9)/9) + 9) + 9) := 9 + ((9 × (9 + 9) × (9 + 9) + (99/9)) + 9) := 9 + (((9 − 9/9) + 9) × (99/9 + 9 × (9 + 9))) Ï 2941 := 1 + ((1 + 11) × (1 + ((1 + 1) × (1 + 111+1 )))) 2 ) := ((6 + 6) × (6 × (6 × 6 + 6) − 6)) − (6 + 6)/6 := (6 × 6 + 6) × (((6 + 6)/6) + 6) Ï 2946 := (1 + 1) × ((11 × (1 + 11)1+1 ) − 111) Ï 2951 := (1 + 1 + 11) × (1 + ((1 + 1) × (1 + 1 + 111))) := 2222 + ((2/2 + 2)2+2+2 ) := 2/2 + ((2 + 2 + 2) × ((22 + 2 + 2) + 2)) := 2 + (((2 × 22) + 2) × 2 := 3/3 + ((3/3 + 3) × ((33+3 + 3) + 3)) := 3 + (3 × (3 × (333 − (3 + 3)))) := (3 + 3)3 + (((33/3 + 3)3 ) − 3 × 3) := 4 + (44/4 × (44/4 + 44 )) := (4 + 4)/4 + (4 × (4 × ((4 × 44 + 4) + 4))) := 4 + ((44 × (((44 − 4)/4) + 4)) − 4/4) := 5 × 5 + ((55 − 5/5)(5+5)/5 ) := 55 + (5/5 − (5 × 5 × 5 + 55)) := 55 + (5/5 − (5 × ((5 × 5 + 5) + 5))) := 6/6 + ((6 × 6 + 6) × (((6 + 6)/6)6 + 6)) := ((6 + 6) × (6 × (6 × 6 + 6) − 6)) − 6 := ((6 + 6) × (6 × (6 × 6 + 6) − 6)) − 6/6 := 7/7 + 7 × (7 × 7 × 7 + 77) := 7 + (7 × (7 × 7 × 7 + 77) − 7/7) := 77/7 + 7 × (7 × 7 × 7 + 77) := 8 + (((8 + 8) × ((88 + 88) + 8)) − (88/8)) := (8 + 8)/8 + ((8 + 8) × ((88 + 88) + 8)) := 8 + (((8 + 8) × ((88 + 88) + 8)) − 8/8) := ((9 − 9/9) + 9) × (99/9 + 9 × (9 + 9)) := 999/9 + (9 × ((9 + 9) × (9 + 9) − 9)) := ((9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) − 9/9 Ï 2942 := ((111 − 1 − 1) × (1 + 1 + 1)1+1+1 ) − 1 2+2+2 ) Ï 2947 := ((1 + 1) × (11 × (1 + (1 + (11 × (1 + 11)))))) − 1 Ï 2952 := (1 + 1) × ((1 + 11) × (1 + (1 + 111+1 ))) := (((2 × 22) + 2) × 22+2+2 ) − 2 := (22 × (22 × (2 + 2 + 2) + 2)) − 2/2 := (22 + 2) × ((22/2)2 + 2) := 33 × (3 + 3) + ((33/3 + 3)3 ) := 3 + ((3 × (3 × (333 − (3 + 3)))) + 3/3) := 3 × ((3 × (333 − (3 + 3))) + 3) 4 := (4 × (4 × ((4 × 44 + 4) + 4))) − (4 + 4)/4 := (44 × (((4 − 4)/4) + 4)) − 4/4 := 4 + (44 × (((44 − 4)/4) + 4)) := 5 + ((55 − ((5 − (5 + 5)/5)5 )) + 55 ) := 55 + ((5 + 5)/5 − (5 × 5 × 5 + 55)) := 55 + ((5 + 5)/5 − (5 × ((5 × 5 + 5) + 5))) := (6 + 6)/6 + ((6 × 6 + 6) × (((6 + 6)/6)6 + 6)) := 6/6 + (((6 + 6) × (6 × (6 × 6 + 6) − 6)) − 6) := (6 + 6) × (6 × (6 × 6 + 6) − 6) := (7 + 7)/7 + 7 × (7 × 7 × 7 + 77) := 7 + 7 × (7 × 7 × 7 + 77) := (7 − 7/7) × (7 × (77 − 7) + ((7 + 7)/7)) := ((8 + 8) × ((88 + 88) + 8)) − (8 + 8)/8 := 888 + ((8 × (8 + 8) × (8 + 8)) + (88/8)) := 8 + ((8 + 8) × ((88 + 88) + 8)) := 9 + (((9 × (9 + 9) × (9 + 9) − 9/9) + 9) + 9) := 9 + (9 × (9 + 9) × (9 + 9) + ((99 + 99)/9)) := (9 + 9) × (((9 + 9)/9) + 9 × (9 + 9)) 206 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2953 := 1 + ((1 + 1) × ((1 + 11) × (1 + (1 + 111+1 )))) Ï 2958 := ((1 + 1 + 1) × ((1 + 1)11−1 − 1)) − 111 Ï 2963 := ((1 + 1) × ((1 + 1)11 − 11)) − 1111 := 2/2 + ((22 + 2) × ((22/2)2 + 2)) := 2 × ((2 × (22 − 2))2 − (22/2)2 ) := 2 + (((222/2 + 2)/2) + (2 × 22)2 ) := 3/3 + (3 × ((3 × (333 − (3 + 3))) + 3)) := (3 × ((3 × (333 − 3)) − 3)) − 3 := 3 + (((33/3 + 3)3 ) + (3 + 3)3 ) 4 4 := 4 + ((44 × (((4 − 4)/4) + 4)) + 4/4) := 4 × 4 + (44 × 44 − (4 + 4)/4) := 4 + ((44 × 44 − 4/4) + 4 × 44 ) := 55 − (((555 + 5)/5 + 55) + 5) := 55 − ((555 + 5)/5 + 55) := 5 + (55 − ((555 + 5)/5 + 55)) := 6/6 + ((6 + 6) × (6 × (6 × 6 + 6) − 6)) := 6 + ((6 + 6) × (6 × (6 × 6 + 6) − 6)) := 66/6 + ((6 + 6) × (6 × (6 × 6 + 6) − 6)) := 7 + ((7 × (7 × 7 × 7 + 77) − 7/7) + 7) := 7 + (7 × (7 × 7 × 7 + 77) + (77/7)) := 777 + (((7 + 7 + 7)/7)7 − 7/7) := 8 + (((8 + 8) × ((88 + 88) + 8)) + 8/8) := ((8 + 8)/8) × ((8/8 + 8 + 8) × (88 − 8/8)) := (8888 + 8/8)/(88/8 − 8) := 9/9 + ((9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) := (99/9 + 9 + 9) × (999/9 − 9) := 99/9 + ((9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) Ï 2954 := (1 + 1) × (1 + ((1 + 11) × (1 + (1 + 111+1 )))) Ï 2964 := (1 + 1) × ((1 + 1 + 11) × (1 + 1 + 1 + 111)) := (2 × 22)2 + ((222/2 − 2)/2) := 2 × ((2 × (22×(2+2) + 222 )) + 2) 3 := (3 × (3 × (333 − 3))) − 33/3 := 3 × 3 × 333 − 33 := 2 + ((22 + 2) × ((22/2) + 2)) 3 Ï 2959 := 11 × (1 + ((1 + 1) × (1 + (1 + (11 × (1 + 11)))))) 2 := (3 + 3) + (((33/3 + 3) ) − (3 + 3)) 4 := 4 + ((44 × (((4 − 4)/4) + 4)) + (4 + 4)/4) 4 := 4 + (44 × 44 + 4 × 44 ) := 4 × 4 + (44 × 44 − 4/4) 5 5 := 5 − ((555/5 + 55) + 5) := 5 − (555/5 + 55) := 5 + (55 − (555/5 + 55)) := (6 + 6)/6 + ((6 + 6) × (6 × (6 × 6 + 6) − 6)) := 6 + (((6 + 6) × (6 × (6 × 6 + 6) − 6)) + 6/6) := 6 + (((6 + 6) × (6 × (6 × 6 + 6) − 6)) + 6) := 7 + (7 × (7 × 7 × 7 + 77) + 7) := 77/7 × ((7 × 7 × 77 − 7)/(7 + 7)) := 777 + ((7 + 7 + 7)/7)7 := 8 + (((8 + 8) × ((88 + 88) + 8)) + ((8 + 8)/8)) := 8 + ((((8 + 8) × ((88 + 88) + 8)) − 8/8) + 8) := ((88 + 8)/8) × ((8 + 8) × (8 + 8) − (8/8 + 8)) := 9 + (((9 × (9 + 9) × (9 + 9) + (99/9)) + 9) + 9) := 999 + ((99 − 9/9) × (99/9 + 9)) := ((9 + 9 + 9)/9) × (999 − (99/9)) Ï 2955 := 1 + ((1 + 1) × (1 + ((1 + 11) × (1 + (1 + 111+1 ))))) 2 Ï 2960 := (11 − 1) × ((11 × (1 + 1 + 1)1+1+1 ) − 1) 2×(2+2) 2 := 2 + (((22 + 2) × ((22/2) + 2)) + 2/2) := 2 × (2 × (2 := (3 × (3 × 333 − 3)) − 33 := (3 + 3)3 + ((33/3 + 3)3 ) Ï 2965 := 1 + ((1 + 1) × ((1 + 1 + 11) × (1 + 1 + 1 + 111))) := ((22 + 2/2) × ((22×(2+2) + 2)/2)) − 2 + 22 )) := 3/3 + (3 × 3 × 333 − 33) 4 := 44/4 + (4 × (4 × ((4 × 44 + 4) + 4))) := 4 × 4 + 44 × 44 := 4 + ((44 × 44 + 4 × 44 ) + 4/4) := 5 + ((5 + 5) × ((5 × (55 + 5)) − 5)) := 55 + (55 × ((5 + 5)/5 − 5)) := 55 − (5 × ((5 + 5)/5)5 ) := 666/6 + (6 × ((6 × (66 + 6 + 6)) + 6)) := (6 × ((6 + 6) × (6 × 6 + 6))) − ((6 + 6)/6)6 := 6 + ((((6 + 6) × (6 × (6 × 6 + 6) − 6)) + 6/6) + 6) := 7 + ((7 × (7 × 7 × 7 + 77) + 7/7) + 7) := (7 × ((77 × 77 − 7)/(7 + 7))) − 7/7 := (77 × 77 + 7/7)/((7 + 7)/7) := 88/8 + ((8 + 8) × ((88 + 88) + 8)) := 8 + (((8 + 8) × ((88 + 88) + 8)) + 8) := (8/8 − (8888 + 8))/(8 − 88/8) := 9 + ((9 × ((9 + 9) × (9 + 9) − 9)) + 999/9) := (9/9 + 9) × ((99 × (9 + 9 + 9) − 9)/9) := 9 × (9 + 9) × (9 + 9) + ((9 × 99 − 9)/(9 + 9)) Ï 2956 := (1 + 1) × (1 + (1 + ((1 + 11) × (1 + (1 + 111+1 ))))) := 2 + (((22 + 2) × ((22/2)2 + 2)) + 2) := 3/3 + ((3 × (3 × 333 − 3)) − 33) 4 := 4 × 4 + (44 × 44 − 4) := 5 + ((5/5 − (5 × ((5 × 5 + 5) + 5))) + 55 ) := 6 + (((6 + 6) × (6 × (6 × 6 + 6) − 6)) − ((6 + 6)/6)) := 7 + ((7 × (7 × 7 × 7 + 77) + ((7 + 7)/7)) + 7) := ((88 + 8)/8) + ((8 + 8) × ((88 + 88) + 8)) := ((9 + 9)/9) × ((9 × 9 × (9 + 9) + (99/9)) + 9) Ï 2957 := ((1 + 1 + 1) × ((1 + 1)11−1 − 1)) − (1 + 111) 2 := (2 × 22) + (((2 3 22/2 − 2)/2) − 2) 3 := (3 + 3) + (((33/3 + 3) ) − 3) 4 Ï 2961 := ((1 + 1 + 1) × (1 + 1)11−1 ) − 111 Ï 2966 := ((1 + 1 + 1) × ((11 − 1)1+1+1 − 11)) − 1 := (2 × 22)2 + ((222/2 + 2)/2) := 22 + (((2 × 22) + 2) × 22+2+2 ) := 3 × ((3 × (333 − 3)) − 3) := (3 × (3 × (333 − 3))) − (3/3 + 3) := 4/4 + (44 × 44 + 4 × 44 ) := ((44 + 4/4) × ((44 + 4 + 4)/4)) − 4 := 55 + (555/5 − 5 × 55) := 55 + (5/5 − (5 × ((5 + 5)/5)5 )) := (66/6 + 6 × 6) × (66 − (6 × 6/(6 + 6))) := 6 + ((6 × ((6 + 6) × (6 × 6 + 6))) − ((6 + 6)/6)6 ) := 7 × ((77 × 77 − 7)/(7 + 7)) := 7 + (77/7 × ((7 × 7 × 77 − 7)/(7 + 7))) := (8 − 8/8) × (8 × 8 × 8 − (8/8 + 88)) := ((8 × 8 − 8) × (8 × 8 − 88/8)) − (8 + 8)/8 := 9 + ((9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) := 999 + ((((9 + 9)/9)99/9 ) − 9 × 9) Ï 2962 := 1 + (((1 + 1 + 1) × (1 + 1)11−1 ) − 111) Ï 2967 := (1 + 1 + 1) × ((11 − 1)1+1+1 − 11) := 2 + ((22×(2+2)+2 ) + (2 × 22)2 ) := (22 + 2/2) × ((22×(2+2) + 2)/2) := 3/3 + (3 × ((3 × (333 − 3)) − 3)) := (3 × (3 × (333 − 3))) − 3 := 4/4 + ((44 × 44 − 4) + 4 × 4 ) := (4 + 4)/4 + (44 × 44 + 4 × 4 ) := (44 − 4/4) × ((44 + 4)/4 + 4) := 55 + (((5 + 5)/5 + 5) × (5/5 − 5 × 5)) := 55 + ((555 + 5)/5 − 5 × 55) := 55 + ((5 + 5)/5 − (5 × ((5 + 5)/5)5 )) := 6 + (((6 + 6) × (6 × (6 × 6 + 6) − 6)) − 6/6) := ((66 − 6)/6) + ((6 + 6) × (6 × (6 × 6 + 6) − 6)) := ((6 × 6 + 6/6) + 6) × (6 × 6/(6 + 6) + 66) := 777 + (((7 + 7 + 7)/7)7 − 7) 4 := 7/7 + (7 × ((77 × 77 − 7)/(7 + 7))) := ((7/7 − 7) + 7 × 7) × (77 − (7/7 + 7)) := ((8 × 8 − 8) × (8 × 8 − 88/8)) − 88/8 := ((8 − 888)/8) + (8 × (8 × (8 × 8 − (8 + 8)))) := ((8 − 8/8 + 8) + 8) × (8 × (8 + 8) + 8/8) := 9 + (((((9 + 9)/9)99/9 ) + 9 × 99) + 9) := 9 + (((9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) + 9/9) := ((9 + 9 + 9)/9) × (999 − (9/9 + 9)) 207 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2968 := 1 + ((1 + 1 + 1) × ((11 − 1)1+1+1 − 11)) Ï 2973 := (1 + 1 + 1) × (1 + ((11 − 1 − 1) × (111 − 1))) Ï 2978 := ((1 + ((1 + 1)1+1+1+1+11 ))/11) − 1 := 2 × (2 × ((22×(2+2) + 222 ) + 2)) := (2/2 + 2) × ((2 × 222 + 22) + 2/2) := (2 × (2 × (22 − 2))2 ) − 222 := 3/3 + ((3 × (3 × (333 − 3))) − 3) := 3 + (3 × (3 × (333 − 3))) := (3 × ((3 × (333 − 3)) + 3)) − 3/3 4 := 4 + ((44 × 44 + 4 × 44 ) + 4) := 4/4 + ((((4 + 4) + 4) × (4 − 4 − 4)) − 4) := (4 + 4)/4 + (((4 + 4) + 4) × (44 − 4 − 4)) := 55 − (((5 + 5)/5)5 + 5 × 5 × 5) := 55 − (5 × (5 × 5 + 5) + ((5 + 5)/5)) := 5 + (55 − (5 × (5 × 5 + 5) + ((5 + 5)/5))) := (6/6 + 6) × (6 × (66 − 6) + ((6 + 6)/6)6 ) := (6 × (6 − 66)) + (6666 × 6/(6 + 6)) := 666 + (6 × 6 × 66 − ((6 + 6)/6)6 ) := 7 × ((77 × 77 + 7)/(7 + 7)) := 7777/7 + (7 × (7 × 7 × 7 − 77)) := 7 + ((((7 + 7 + 7)/7)7 + 777) + 7) := (8 × (8 × (8 × 8 − (8 + 8)))) − (88/8 + 88) := 8 + ((88/8 + 8 + 8) × (888 − 8)/8) := ((9 + 9 + 9)/9) × ((999 − 9) + 9/9) := 9 × ((9 + 9) × (9 + 9) + 9) − (9/9 + 9 + 9) := (8 × 8 − 8) × (8 × 8 − 88/8) 9 := ((9 + 9)/9) × ((9 × (99 + 9)) + (((9 + 9)/9) )) Ï 2969 := ((111 − 1) × (1 + 1 + 1)1+1+1 ) − 1 Ï 2974 := ((1 + 1)1+11 ) − (11 + 1111) Ï 2979 := (1 + ((1 + 1)1+1+1+1+11 ))/11 := 2 + ((22 + 2/2) × ((22×(2+2) + 2)/2)) := 22 + ((22 + 2) × ((22/2)2 + 2)) := 2/2 + ((2 × (2 × (22 − 2))2 ) − 222) := (3 × (3 × (333 − 3))) − 3/3 := 3 + ((3 × (3 × (333 − 3))) + 3/3) := 3 × ((3 × (333 − 3)) + 3) := 44 + ((44 + 4/4) × (44 + 4)/4) := 4 + ((44 + 4/4) × ((4 + 4 + 4)/4)) := 55 + ((55 − 5)/(5 − 5 × 5)) := 5 − (5 × (5 × 5 + 5) + 5/5) := 5 + (55 − (5 × (5 × 5 + 5) + 5/5)) := (66 × (666/6 − 66)) − 6/6 := (((6 + 6)/6)6+6 ) − (66 × (66/6 + 6)) := 66 × (6 + 6) + ((6 × 6/(6 + 6))6/6+6) := 7/7 + (7 × ((77 × 77 + 7)/(7 + 7))) := 7 + (((7/7 − 7) + 7 × 7) × (77 − (7/7 + 7))) := 7 + (((77 × 77 + 7/7)/((7 + 7)/7)) + 7) := 8/8 + ((8 × 8 − 8) × (8 × 8 − 88/8)) := (8 × 8 × 8 × 8) − ((8888 + 88)/8) := 88/8 + ((8 × 8 − 8) × (8 × 8 − 88/8)) := (99 × ((((99 + 9)/9) + 9) + 9)) − 9/9 := 9 × 9 + (9999/9 + (9 + 9) × 99) := 9 × ((9 + 9) × (9 + 9) + 9) − (9 + 9) Ï 2970 := (111 − 1) × (1 + 1 + 1)1+1+1 4 5 Ï 2975 := 1 + (((1 + 1)1+11 ) − (11 + 1111)) := 4 + ((4 × 4 + 4/4) × (4 × 44 − 4/4)) Ï 2980 := 1 + ((1 + ((1 + 1)1+1+1+1+11 ))/11) := 22 × (222/2 + 22 + 2) := ((22 + 2/2) + 2) × ((22/2)2 − 2) := 2 + ((2 × (2 × (22 − 2))2 ) − 222) := 3 × (3 × (333 − 3)) := 3 + (((3 × (3 × (333 − 3))) − 3/3) + 3) := 3/3 + (3 × ((3 × (333 − 3)) + 3)) := (44 + 4/4) × ((44 + 4 + 4)/4) := (4 × 4 + 4/4) × (4 × 44 − 4/4) := 4 + (((4 + 4) + 4) × (44 − 4 − 4)) := 55 × (55 − 5/5) := 55 − 5 × (5 × 5 + 5) := 5 + (55 − 5 × (5 × 5 + 5)) := 66 × (666/6 − 66) := (6/6 + 6) × ((6 × (66 + 6)) − (6/6 + 6)) := (6 − 6/6) × (666 − (((6 + 6)/6)6 + 6)) := 77/7 × ((7 × 7 × 77 + 7)/(7 + 7)) := 7 + (7 × ((77 × 77 + 7)/(7 + 7))) := (7 − ((7 + 7)/7)) × ((7 × (77 + 7) + 7/7) + 7) := (88/8 + 8 + 8) × (888 − 8)/8 := (8 − 8/8) × ((8 × 8 × 8 − 88) + 8/8) := 8 × 8 + (((8 − 88)/8 + 8 × 8)(8+8)/8 ) := 99 × ((((99 + 9)/9) + 9) + 9) := 9 × ((9 + 9) × (9 + 9) + 9) − ((99 + 99)/9) := 9/9 + (9 × ((9 + 9) × (9 + 9) + 9) − (9 + 9)) Ï 2971 := 1 + ((111 − 1) × (1 + 1 + 1)1+1+1 ) Ï 2976 := (1 + 1) × ((1 + 11) × (1 + (1 + (1 + 111+1 )))) Ï 2981 := 11 + ((111 − 1) × (1 + 1 + 1)1+1+1 ) := 2/2 + (22 × (222/2 + 22 + 2)) := 2 × ((22 + 2) × (22+2+2 − 2)) := ((22/2 + 2 × 22)2 ) − (2 × 22) := 3/3 + (3 × (3 × (333 − 3))) := 3 + ((3 × (3 × (333 − 3))) + 3) := 33/3 + (3 × (3 × (333 − 3))) 4 := 4 + ((44 − 4/4) × ((4 + 4)/4 + 4)) := ((4 + 4) + 4) × (4 − 4 − 4) := ((4 + 4)4 ) − (4444/4 + 4) := 5/5 + (55 × (55 − 5/5)) := 55 + (5/5 − 5 × (5 × 5 + 5)) := 5 + ((5/5 − 5 × (5 × 5 + 5)) + 55 ) := 6/6 + (66 × (666/6 − 66)) := 6 + (66 × (666/6 − 66)) := ((6 − 6/6)6−6/6 ) − (6 + 6) × (6 + 6) 4 7 := 7 + (((7 + 7 + 7)/7) + 777) := (7 − 7/7) × ((7 × (77 − 7) − 7/7) + 7) := (7 × (7 × 7 × 7 + 77 + 7)) − (7/7 + 7) := 8 + ((8888 + 8/8)/(88/8 − 8)) := 8 + ((8 × 8 − 8) × (8 × 8 − 88/8)) := 88/8 × ((((8 + 8) × (8 + 8) − 8/8) + 8) + 8) := 9/9 + (99 × ((((99 + 9)/9) + 9) + 9)) := 9 + (((9 + 9 + 9)/9) × (999 − (9/9 + 9))) := 9 × 9 + ((9/9 + 99) × (99/9 + 9 + 9)) Ï 2972 := 1 + (1 + ((111 − 1) × (1 + 1 + 1)1+1+1 )) Ï 2977 := 1 + ((1 + 1) × ((1 + 11) × (1 + (1 + (1 + 111+1 ))))) Ï 2982 := ((1 + 1)1+11 ) − (1 + (1 + (1 + 1111))) := 2 + (22 × (222/2 + 22 + 2)) := 2 + (((22 + 2/2) + 2) × ((22/2)2 − 2)) := 222 + ((2 × (22 + 2) + 2)2 − 2) := 3 + ((3 × (3 × (333 − 3))) − 3/3) := (3 × (3 × 333 − 3)) − 33/3 := 3 + (3 × ((3 × (333 − 3)) + 3)) 4 := (((4 + 4) + 4) × (4 − 4 − 4)) − 4 := 4/4 + (((4 + 4) + 4) × (4 − 4 − 4)) := ((4 + 4)4 ) + (((4 − 4444)/4) − 4) := (5 + 5)/5 + (55 × (55 − 5/5)) := 55 + ((5 + 5)/5 − 5 × (5 × 5 + 5)) := 5 + (((5 + 5)/5 − 5 × (5 × 5 + 5)) + 55 ) := (6 + 6)/6 + (66 × (666/6 − 66)) := (6 × ((6 × (66 + 6)) + 66)) − 66/6 := (6/6 + 6) × ((6 × (66 + 6)) − 6) := (7 − 7/7) × (7 × (77 − 7) + 7) 4 := 7 + ((77 × 77 + 7/7)/((7 + 7)/7)) := 7 + (77/7 × ((7 × 7 × 77 + 7)/(7 + 7))) := 8 + (((88 + 8)/8) × ((8 + 8) × (8 + 8) − (8/8 + 8))) := (8 × 8 × 8 × 8) − (8888/8 + 8) := (8 − 8/8) × ((8 × 8 × 8 − 88) + ((8 + 8)/8)) := (9 + 9)/9 + (99 × ((((99 + 9)/9) + 9) + 9)) := 9 × ((9 + 9) × (9 + 9) + 9) − (99/9 + 9) := 9 + (((9 + 9 + 9)/9) × ((999 − 9) + 9/9)) 208 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2983 := ((1 + 1)1+11 ) − (1 + (1 + 1111)) Ï 2988 := (11 − 1 − 1) × ((1 + 1 + 1) × 111 − 1) Ï 2993 := ((1 + 1 + 1) × ((11 − 1)1+1+1 − (1 + 1))) − 1 := 2 + (((22/2 + 2 × 22)2 ) − (2 × 22)) := 2 × ((2 × (2 × 222 − 222)) + 2) := 2 × 222 + (2 × 22 + 2/2)2 := 3 × 3 × 333 − (33/3 + 3) := 3 × (3 × 333 − 3) := 3 × 3 × 333 − (3/3 + 3) := (44 × (4 × 4 × 4 + 4)) − 4 := 4/4 + (44 × (4 × 4 × 4 + 4)) 4 4 := 4 + (((44 × (4 − 4 − 4)) − 4)/4) := 55 + (((5 − 5 × 5 × 55)/(5 + 5)) − 5) := 5 + ((5 − 5 × 5 × 55)/(5 + 5)) := 55 × 55 − ((5 + 5)/5)5 := 6/6 + ((6/6 + 6) × ((6 × (66 + 6)) − 6)) := 6 × ((6 × (66 + 6)) + 66) := 6 + ((6 × ((6 × (66 + 6)) + 66)) − 6/6) := 7/7 + ((7 − 7/7) × (7 × (77 − 7) + 7)) := (7 × (7 × 7 × 7 + 77 + 7)) − 7/7 := ((7/7 + 7 × 7) × (77/7 + 7 × 7)) − 7 := (8 × (8 × (8 × 8 − (8 + 8)))) − (8/8 + 88) := ((88 + 8)/8) × (((8 + 8) × (8 + 8) − 8) + 8/8) := 8 + ((8 × 8 × 8 × 8) − 8888/8) := 9 + ((9999/9 + (9 + 9) × 99) + 9 × 9) := 9 × ((9 + 9) × (9 + 9) + 9) − 9 := ((9 − 9 × 9)/(9 + 9)) + 9 × ((9 + 9) × (9 + 9) + 9) 5 Ï 2989 := ((1 + 1 + 1) × (11 − 1)1+1+1 ) − 11 Ï 2984 := ((1 + 1)1+11 ) − (1 + 1111) Ï 2994 := (1 + 1 + 1) × ((11 − 1)1+1+1 − (1 + 1)) := 2 × (2 × (2 × 222 − 222)) := (2 × (222 − 2)) + (2 × 22 + 2/2)2 := 2 + (2 × (2 × (22 × ((2 × 22+2 ) + 2)))) := (3 × (3 × 333 − 3)) − (3/3 + 3) := 3/3 + (3 × (3 × 333 − 3)) := 3 × 3 × 333 − 3 4 := (44 × (4 × 4 × 4 + 4)) − 4 − 4 := 4 + (((4 + 4) ) − 4444/4) 5 5 := 5 − ((555/5 + 5 × 5) + 5) := 5 − (555/5 + 5 × 5) := (6 + 6)/6 + ((6/6 + 6) × ((6 × (66 + 6)) − 6)) := (4 + 4)/4 + (44 × (4 × 4 × 4 + 4)) := 55 − ((5 × 5 × 5 + 5/5) + 5) := 6/6 + (6 × ((6 × (66 + 6)) + 66)) := 6 + (6 × ((6 × (66 + 6)) + 66)) := (7 + 7)/7 + ((7 − 7/7) × (7 × (77 − 7) + 7)) := 7 × (7 × 7 × 7 + 77 + 7) := 7 × 7 × 77 − (((7 + 7)/7) + 777) := (8 × (8 × (8 × 8 − (8 + 8)))) − 88 := (888/8 × (88/8 + 8 + 8)) − 8 := 8 + (((8 − 8888)/8) + (8 × 8 × 8 × 8)) := (9 − 9/9) × ((((9 × 9 × 9 × 9) − 9)/(9 + 9)) + 9) := 9/9 + (9 × ((9 + 9) × (9 + 9) + 9) − 9) := ((9 + 9 + 9)/9) × (999 − 9/9) Ï 2985 := ((1 + 1)1+11 ) − 1111 Ï 2990 := 1 + (((1 + 1 + 1) × (11 − 1)1+1+1 ) − 11) Ï 2995 := (111 × (1 + 1 + 1)1+1+1 ) − 1 − 1 := (22×(2+2+2) ) − 2222/2 := 2 × ((2 × 22)2 − ((22 − 2/2)2 )) := 2 + ((2 × 22 + 2/2)2 + 2 × 222 ) := (3 × (3 × 333 − 3)) − 3 := 3 + ((3 × (3 × 333 − 3)) − 3/3) := 3/3 + (3 × 3 × 333 − 3) := ((4 + 4)4 ) − 4444/4 4 := (4 + 4)/4 × ((4 + 4)/4 + 44) 5 := 4 + ((44 × (4 × 4 × 4 + 4)) − 4/4) := 5 − ((5 × 5 × 5 + 5) + 5) := 55 − (5 × 5 × 5 + 5) := (((6 + 6)/6)6+6 ) − (6666/6) := (6 + 6)/6 + (6 × ((6 × (66 + 6)) + 66)) := 6 + ((6 × ((6 × (66 + 6)) + 66)) + 6/6) := 7 × 7 × 77 − (77/7 + 777) := 7/7 + (7 × (7 × 7 × 7 + 77 + 7)) := 7 × 7 × 77 − (777 + 7/7) := (8 × 8 × 8 × 8) − 8888/8 := ((8 + 8)/8) × ((88 × (8 + 8) − 8/8) + 88) := 88/8 + ((8 × (8 × (8 × 8 − (8 + 8)))) − 88) := 9 × ((9 + 9) × (9 + 9) + 9) − (99 + 9)/9 := (9 + 9)/9 + (9 × ((9 + 9) × (9 + 9) + 9) − 9) := 9 × ((9 + 9) × (9 + 9) + 9) − (9 + 9)/9 5 := 5 + ((5 − 5 × (5 × 5 + 5)) + 5) Ï 2986 := 1 + (((1 + 1)1+11 ) − 1111) Ï 2991 := (1 + 1 + 1) × ((11 − 1)1+1+1 − (1 + 1 + 1)) := 2 + ((2 × (22 + 2) + 2)2 + 222 ) Ï 2996 := (111 × (1 + 1 + 1)1+1+1 ) − 1 := 2 × 222 + ((2 × 22 + 2/2)2 − 2) := 2 × ((2 × (22 × ((2 × 22+2 ) + 2))) + 2) := 3 × 3 × 333 − 33/3 := 3 + (3 × (3 × 333 − 3)) := 3 × 3 × 333 − 3/3 := ((4 + 4)4 ) + ((4 − 4444)/4) := (44 × (4 × 4 × 4 + 4)) − 4/4 := 4 + (44 × (4 × 4 × 4 + 4)) := 55 + (5/5 − ((5 × 5 × 5 + 5) + 5)) := 55 + (5/5 − (5 × 5 × 5 + 5)) 5 := 5 + (55/5 − 5 × (5 × 5 + 5)) := (6 × ((6 × (66 + 6)) + 66)) − (6 + 6)/6 (7+7)/7 6+6 := 6 + ((((6 + 6)/6) ) − (6666/6)) := 6 + ((6 × ((6 × (66 + 6)) + 66)) + ((6 + 6)/6)) := (7 + 7)/7 + (7 × (7 × 7 × 7 + 77 + 7)) := 7 × 7 × 77 − 777 := (8 × 8 × 8 × 8) + ((8 − 8888)/8) := ((8/8 + 8 + 8) × (88 + 88)) − 8/8 := (8 − 8/8) × (888/((8 + 8)/8) − (8 + 8)) := 9 × ((9 + 9) × (9 + 9) + 9) − 99/9 := ((9 + 9 + 9)/9) × (999 − ((9 + 9)/9)) := 9 × ((9 + 9) × (9 + 9) + 9) − 9/9 := 777 + ((7 × 7 − (7 + 7)/7) ) Ï 2987 := 1 + (1 + (((1 + 1)1+11 ) − 1111)) Ï 2992 := 11 × (((1 + 1 + 11) × (11 + (11 − 1))) − 1) Ï 2997 := 111 × (1 + 1 + 1)1+1+1 := 2 + ((22×(2+2+2) ) − (2222/2)) := 2 × (2 × (22 × ((2 × 22+2 ) + 2))) := 222/2 × (((22 + 2/2) + 2) + 2) := (3 × (3 × 333 − 3)) − 3/3 := 3 + ((3 × (3 × 333 − 3)) + 3/3) := 3 × 3 × 333 := (44 × (4 × 4 × 4 + 4)) − (4/4 + 4) := 44 × (4 × 4 × 4 + 4) := 4 + ((44 × (4 × 4 × 4 + 4)) + 4/4) := 5 − ((5 × 5 × 55 + 5)/(5 + 5)) := 5 + (5 − ((5 × 5 × 55 + 5)/(5 + 5))) := 55 + ((5 + 5)/5 − (5 × 5 × 5 + 5)) := (6 × ((6 × (66 + 6)) + 66)) − 6/6 := 6 + ((6 × ((6 × (66 + 6)) + 66)) − ((6 + 6)/6)) := 666/6 × ((66 × 6/(6 + 6)) − 6) := (7 × (7 × 7 × 7 + 77 + 7)) − (7 + 7)/7 := 7 + (7 × 7 × 77 − (77/7 + 777)) := 7/7 + (7 × 7 × 77 − 777) := (8 × 8 × 8 × 8) + (((8 − 8888) + 8)/8) := (8/8 + 8 + 8) × (88 + 88) := 888/8 × (88/8 + 8 + 8) := 9 × ((9 + 9) × (9 + 9) + 9) − 9/9 − 9 := 99 + (9999/9 + (9 + 9) × 99) := 9 × ((9 + 9) × (9 + 9) + 9) 5 5 209 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 2998 := 1 + (111 × (1 + 1 + 1)1+1+1 ) Ï 3003 := (1 + 1 + 1) × (1 + (11 − 1)1+1+1 ) Ï 3008 := 11 + (111 × (1 + 1 + 1)1+1+1 ) := 2 × (((2 × (22 − 2) − 2/2)2 ) − 22) := ((22/2 + 2 × 22)2 ) − 22 := 2 × (2 × (2 × ((22 − 2)2 − (22 + 2)))) := 3/3 + 3 × 3 × 333 := 3 + (3 × 3 × 333 + 3) := 33/3 + 3 × 3 × 333 := 4 + ((44 × (4 × 4 × 4 + 4)) + (4 + 4)/4) := 44/4 + (44 × (4 × 4 × 4 + 4)) := 4 × (4 × (444 − 44 )) := 55 − (5 × 5 × 5 + ((5 + 5)/5)) := 55 − ((555 + 55)/5) := 55 − ((555 + 5)/5 + 5) := ((66 − 6)/6) + (6 × ((6 × (66 + 6)) + 66)) := 666666/(6 × 6 × 6 + 6) := ((6 + 6)/6)6 × (66/6 + 6 × 6) := (7 + 7)/7 + (7 × 7 × 77 − 777) := 7 + (7 × 7 × 77 − 777) := ((7 × 7 + 7)(7+7)/7 ) − ((7 + 7)/7)7 := 8/8 + (888/8 × (88/8 + 8 + 8)) := 88/8 + ((8/8 + 8 + 8) × (88 + 88)) := 8 × (888 − 8 × 8 × 8) := 9/9 + 9 × ((9 + 9) × (9 + 9) + 9) := 9 + (((9 + 9 + 9)/9) × (999 − 9/9)) := 99/9 + 9 × ((9 + 9) × (9 + 9) + 9) Ï 2999 := ((1 + 1 + 1) × (11 − 1)1+1+1 ) − 1 Ï 3004 := 1 + ((1 + 1 + 1) × (1 + (11 − 1)1+1+1 )) 2+2+2 := 2 + (222/2 × (((22 + 2/2) + 2) + 2)) := 2 × (2 × (((2/2 + 2) := 3 + (3 × 3 × 333 − 3/3) := 3 + ((3 × 3 × 333 + 3/3) + 3) := 4 + (((44 × (4 × 4 × 4 + 4)) − 4/4) + 4) 5 := 5 − (5 × 5 × 5 + 5/5) ) + 22)) 4 := (4 × (4 × (444 − 4 ))) − 4 5 Ï 3009 := 1 + (11 + (111 × (1 + 1 + 1)1+1+1 )) := ((22/2 + 2 × 22)2 ) − 22+2 := 3 + 3 × (3 × 333 + 3) := 4/4 + (4 × (4 × (444 − 44 ))) := 5 + (5 − (5 × 5 × 5 + 5/5)) := 55 − (555/5 + 5) := 66/6 + (6 × ((6 × (66 + 6)) + 66)) := 666 + (6 × (6 × 66 − 6) − ((6 + 6)/6)) := (66/6 + 6) × (666/6 + 66) := 777 + (((7 + 7)/7) × 7777/7) := 7 + ((7 × 7 × 77 − 777) + 7/7) := 7 × 7 × (7 × 7 + 7 + 7) − 7/7 − 77 := 888 + ((88 × (8 + 8 + 8)) − 8/8) := 88 + (((8 − 88)/8 + 8 × 8)(8+8)/8 ) := 8/8 + (8 × (888 − 8 × 8 × 8)) := (9 + 9)/9 + 9 × ((9 + 9) × (9 + 9) + 9) := 9 + (9 × ((9 + 9) × (9 + 9) + 9) − ((9 + 9)/9)) := 9 + (((9 + 9 + 9)/9) × (999 + 9/9)) Ï 3000 := (1 + 1 + 1) × (11 − 1)1+1+1 Ï 3005 := 1 + (1 + ((1 + 1 + 1) × (1 + (11 − 1)1+1+1 ))) Ï 3010 := 11 + (((1 + 1 + 1) × (11 − 1)1+1+1 ) − 1) := (2 + 2 + 2) × (22+2 + 222 ) := 2 + (((22/2 + 2 × 22)2 ) − 22) := 222/2 + ((2 × (222 − 2)) − 2) := 3 + 3 × 3 × 333 := 3 × (3 × 333 + 3) − 3/3 := 3 + (3 × (3 × 333 + 3) + 3/3) := 4 + ((44 × (4 × 4 × 4 + 4)) + 4) 4 := 4/4 + ((4 × (4 × (444 − 4 ))) − 4) := (4 + 4)/4 + (4 × (4 × (444 − 44 ))) := 5 − 5 × 5 × 5 := 5 + (55 − 5 × 5 × 5) := 5 + ((55 − 5 × 5 × 5) + 5) := (6 − 6/6) × (666 − 66) := 666 + (6 × (6 × 66 − 6) − 6/6) := (6 − 6/6) × (666 − ((6 + 6)/6)6 ) := (7/7 + 7 × 7) × (77/7 + 7 × 7) := (7 × 7 × (77 + 7)) − 7777/7 := (77 − 7) × ((7/7 − 7) + 7 × 7) := 888 + (88 × (8 + 8 + 8)) := 8 + (888/8 × (88/8 + 8 + 8)) := (8 + 8)/8 + (8 × (888 − 8 × 8 × 8)) := ((9 + 9 + 9)/9) × (999 + 9/9) := 9 + (9 × ((9 + 9) × (9 + 9) + 9) − 9/9) := ((99 + 9 + 9)/9) + 9 × ((9 + 9) × (9 + 9) + 9) 5 Ï 3001 := 1 + ((1 + 1 + 1) × (11 − 1)1+1+1 ) 2 Ï 3006 := (1 + 1 + 1) × (1 + 1 + (11 − 1)1+1+1 ) Ï 3011 := 11 + ((1 + 1 + 1) × (11 − 1)1+1+1 ) := ((22/2 + 2 × 22) ) − (22 + 2) := (2/2 + 2) × ((22×(2+2)+2 ) − 22) := 2 + (((22/2 + 2 × 22)2 ) − 22+2 ) := 3 + (3 × 3 × 333 + 3/3) := 3 × (3 × 333 + 3) := 3 + (3 × 3 × 333 + 33/3) := 4 + (((44 × (4 × 4 × 4 + 4)) + 4/4) + 4) 4 4 := (4 × ((4 + 4) + 4)) − ((4 + 4 + 4)/4) := 4 + ((44 × ((4 + 4) + 4)) − (44 + 4)/4) := 5 + (5/5 − 5 × 5 × 5) := 5 + ((5/5 − 5 × 5 × 5) + 55 ) := 55 + (55/5 − 5 × 5 × 5) 5 := 6/6 + ((6 − 6/6) × (666 − 66)) := 666 + 6 × (6 × 66 − 6) := (6 × (6 + 6) × (6 × 6 + 6)) − (6/6 + 6 + 6) := 7 + (7 × 7 × 77 − (((7 + 7)/7) + 777)) := (7 − 7/7) × (7 × (77 − 7) + (77/7)) := 7/7 + ((77 − 7) × ((7/7 − 7) + 7 × 7)) := 8/8 + ((88 × (8 + 8 + 8)) + 888) := (8 − (8 + 8)/8) × (8 × 8 × 8 − 88/8) := 888 + ((88 × (8 + 8 + 8)) + (88/8)) := 9/9 + (((9 + 9 + 9)/9) × (999 + 9/9)) := 9 + 9 × ((9 + 9) × (9 + 9) + 9) := 9 × (99 + 9) + ((((9 + 9)/9)99/9 ) − 9) Ï 3002 := 1 + (1 + ((1 + 1 + 1) × (11 − 1)1+1+1 )) Ï 3007 := 1 + ((1 + 1 + 1) × (1 + 1 + (11 − 1)1+1+1 )) Ï 3012 := 1 + (11 + ((1 + 1 + 1) × (11 − 1)1+1+1 )) := 2 + ((2 + 2 + 2) × (22+2 + 222 )) := 2 + ((((22/2 + 2 × 22)2 ) − 22) + 2) := 222/2 + (2 × (222 − 2)) := 3 + ((3 × 3 × 333 − 3/3) + 3) := 3/3 + 3 × (3 × 333 + 3) := 3 + (3 × (3 × 333 + 3) + 3) 4 4 := (44 − 4)/4 + (44 × (4 × 4 × 4 + 4)) := (4 × ((4 + 4) + 4)) − (4 + 4)/4 := 4 + (4 × (4 × (444 − 44 ))) := 55 + ((5 + 5)/5 − 5 × 5 × 5) := 5 + (((5 + 5)/5 − 5 × 5 × 5) + 55 ) := 55 − (555 + 5 + 5)/5 := (((6 + 6)/6)6 × (66/6 + 6 × 6)) − 6 := 6/6 + (6 × (6 × 66 − 6) + 666) := (6 + 6) × (6 × (6 × 6 + 6) − 6/6) := 7 + (7 × 7 × 77 − (777 + 7/7)) := 7 + ((7/7 + 7 × 7) × (77/7 + 7 × 7)) := 7 + ((7 × 7 × (77 + 7)) − 7777/7) := 888 + ((88 × (8 + 8 + 8)) + ((8 + 8)/8)) := (8 × (888 − 8 × 8 × 8)) − 8/8 := (8/((8 + 8)/8)) + (8 × (888 − 8 × 8 × 8)) := ((9 × 9 + 9)/(9 + 9)) + 9 × ((9 + 9) × (9 + 9) + 9) := 9 + (9 × ((9 + 9) × (9 + 9) + 9) + 9/9) := 9 + ((((9 + 9 + 9)/9) × (999 − 9/9)) + 9) 210 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3018 := 1 + (1 + ((1 + 1 + 11) × (111 + 111+1 ))) Ï 3013 := (1 + (11 + 11)) × ((11 × (1 + 11)) − 1) Ï 3023 := ((111 − 1)/(1 + 1))1+1 − 1 − 1 := 2/2 + ((2 × (222 − 2)) + 222/2 ) := 2 + (2 × 222 + 222/2 ) := ((22/2 + 2 × 22)2 ) − 2 := (3 × (3 × (333 + 3))) − 33/3 := 3 + (3 × ((3 × 333 + 3) + 3)) := (3 × (3 × (333 + 3))) − 3/3 := (((4 + 4) + 4) × (44 − 4)) − 44/4 := (4 − 4/4) × (4 × (44 − 4) − (4 + 4)/4) := (((4 + 4) + 4) × (44 − 4)) − 4/4 := 55 − (555 + 5)/5 := 5 + (55 − (555 + 5)/5) := 55 × 55 − (5 + 5)/5 := (6 × (6 + 6) × (6 × 6 + 6)) − 6 := (6 × (6 + 6) × (6 × 6 + 6)) − 6/6 := (6 × (6 + 6) × (6 × 6 + 6)) − 66/6 7 (7+7)/7 := (((7 + 7)/7 + 7) × (7 × 7 × 7 − 7)) − 7/7 := 7 × 7 + (((7 + 7 + 7)/7) + 777) := (((7 × 7 − 7/7) + 7) := 8 + ((888/8 × (88/8 + 8 + 8)) + 8) := (8 − (8 + 8)/8) × (8 × 8 × 8 − (8/8 + 8)) := ((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) − 8/8 := 99 + (9 × (9 + 9) × (9 + 9) − ((9 + 9)/9)) := 999/9 + (9 × (9 + 9) × (9 + 9) − 9) := 9 + ((9 × (9 + 9) × (9 + 9) − 9/9) + 99) Ï 3014 := ((111 − 1)/(1 + 1))1+1 − 11 )−7 Ï 3019 := 11 + (11 + (111 × (1 + 1 + 1)1+1+1 )) := 22 × ((22/2)2 + 22+2 ) := (3 × ((3 × 333 + 3) + 3)) − 3/3 Ï 3024 := ((111 − 1)/(1 + 1))1+1 − 1 := ((22/2 + 2 × 22)2 ) − (2 + 2 + 2) := 2 × (2 × (2 × ((22 − 2)2 − 22))) := 3 + ((3 × ((3 × 333 + 3) + 3)) + 3/3) := 3 × (3 × (333 + 3)) := 44/4 × (((4 + 4)/4 + 4 ) + 4 × 4) := (((4 + 4) + 4) × (4 − 4)) − (4/4 + 4) := ((4 + 4) + 4) × (44 − 4) := 55 − 555/5 := 5 + (55 − 555/5) := 55 × 55 − 5/5 := 6 + (((6 + 6)/6)6 × (66/6 + 6 × 6)) := 6/6 + ((6 × (6 + 6) × (6 × 6 + 6)) − 6) := 6 × (6 + 6) × (6 × 6 + 6) := 7 + (((7/7 + 7 × 7) × (77/7 + 7 × 7)) + 7) := 7/7 + ((((7 × 7 − 7/7) + 7)(7+7)/7 ) − 7) := ((7 + 7)/7 + 7) × (7 × 7 × 7 − 7) := 8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 − 88/8)) := 88/8 + (8 × (888 − 8 × 8 × 8)) := 99 + (9 × (9 + 9) × (9 + 9) − 9/9) := 9 × (9 + 9) × (9 + 9) + (((999 + 9)/9) − 9) 4 4 Ï 3015 := ((111 − 1)/(1 + 1))1+1 − 11 + 1 Ï 3020 := (1 + 1) × (((1 + 1 + 1) × (1 + 1 + 11))1+1 − 11) := (8 − (8 + 8)/8) × (8 × 8 × 8 − 8) := 9 + (9 × (9 + 9) × (9 + 9) + 99) Ï 3025 := ((111 − 1)/(1 + 1))1+1 := (22/2 + 2 × 22)2 := 222/2 + (222 × (2 + 2 + 2)) := 222/2 + (2 × (222 + 2)) := 3 × ((3 × 333 + 3) + 3) := (3 × (3 × (333 + 3))) − (3/3 + 3) := (44 + 4/4) × (((44 − 4)/4) + 4) := (((4 + 4) + 4) × (44 − 4)) − 4 := 55 − (55 + 55) := 55 × 55 − 5 := (66 + 6/6) × (666/6 − 66) := (6 + 6)/6 + ((6 × (6 + 6) × (6 × 6 + 6)) − 6) := ((7 + 7)/7 + 7) × (7 × 7 × 7 − (7/7 + 7)) := 7 + ((((7 + 7 + 7)/7)7 + 777) + 7 × 7) := 8 + ((8 × (888 − 8 × 8 × 8)) − 8/8) := ((88 + 8)/8) + (8 × (888 − 8 × 8 × 8)) := (8 × 8 − (8/8 + 8))(8+8)/8 := 99 + 9 × (9 + 9) × (9 + 9) := 9 × (99 + 9) + (((9 + 9)/9)99/9 ) := ((999 − 9)/(9 + 9))(9+9)/9 Ï 3016 := (1 + 1 + 11) × (111 + 111+1 ) 2 Ï 3021 := (1 + 1 + 1) × ((11 − 1 − 1) × (1 + 111) − 1) 22/2 := 3/3 + (3 × (3 × (333 + 3))) := 4/4 + (((4 + 4) + 4) × (44 − 4)) := 55 × 55 := 6/6 + (6 × (6 + 6) × (6 × 6 + 6)) := ((7 × 7 − 7/7) + 7)(7+7)/7 Ï 3026 := ((111 − 1)/(1 + 1))1+1 + 1 := ((22/2 + 2 × 22)2 ) − 2 − 2 := 2/2 + ((22/2 + 2 × 22)2 ) := (3 × (3 × (333 + 3))) − 3 := 3 + ((3 × (3 × (333 + 3))) − 3/3) := 4/4 + ((((4 + 4) + 4) × (44 − 4)) − 4) := (4 + 4)/4 + (((4 + 4) + 4) × (44 − 4)) := 5/5 + (55 × 55 − 5) := 5/5 + 55 × 55 := (6 × (6 + 6) × (6 × 6 + 6)) − 6 × 6/(6 + 6) := (6 + 6)/6 + (6 × (6 + 6) × (6 × 6 + 6)) := 77 + (7 × (7 × 7 × 7 + 77) − 7/7) := 77/7 + ((77 − 7) × ((7/7 − 7) + 7 × 7)) := 7/7 + (((7 × 7 − 7/7) + 7)(7+7)/7 ) := 8 + (8 × (888 − 8 × 8 × 8)) := (8 × 8 − 88/8) × ((8/8 − 8) + 8 × 8) := 8/8 + ((8 × 8 − (8/8 + 8))(8+8)/8 ) := 9/9 + (9 × (9 + 9) × (9 + 9) + 99) := ((9 + 9 + 9)/9) × ((999 − 9/9) + 9) := 99 + (9 × (9 + 9) × (9 + 9) + (99/9)) := 2 × 22 + 2 := 3/3 + (3 × ((3 × 333 + 3) + 3)) 4 := (((4 + 4) + 4) × (4 − 4)) − 4 − 4 := 55 + (5/5 − (55 + 55)) 6+6 := (6 × (6 × (6 − 6 × 6))) + (((6 + 6)/6) ) Ï 3017 := 1 + ((1 + 1 + 11) × (111 + 111+1 )) 2 := 2/2 + (2 × 22 + 2 22/2 ) Ï 3022 := ((111 − 1)/(1 + 1))1+1 − 1 − 1 − 1 := 2222 + (2 × (22 − 2)) := 33/3 + 3 × (3 × 333 + 3) 2 := 3/3 + ((3 × (3 × (333 + 3))) − 3) 4 4 Ï 3027 := ((111 − 1)/(1 + 1))1+1 + 1 + 1 := 2 + ((22/2 + 2 × 22)2 ) := 3 + (3 × (3 × (333 + 3))) := (((4 + 4) + 4) × (4 − 4)) − (4 + 4)/4 := 4 + ((((4 + 4) + 4) × (44 − 4)) − 4/4) := 5 + (5 − (555 + 5 + 5)/5) := (5 + 5)/5 + (55 × 55 − 5) := (5 + 5)/5 + 55 × 55 := (6/6 + 6) × ((6 × (66 + 6)) − 6/6) := (6 × (6 + 6) × (6 × 6 + 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (6 × (6 + 6) × (6 × 6 + 6)) := 7 + (((7 + 7)/7 + 7) × (7 × 7 × 7 − (7/7 + 7))) := 7 × (777 − 7 × 7 × 7) − 77/7 := 4 + ((((4 + 4) + 4) × (4 − 4)) − 44/4) 5 := 77 + 7 × (7 × 7 × 7 + 77) := ((8 × 8 − (8/8 + 8)) (8+8)/8 )−8 := 9 + (9 × ((9 + 9) × (9 + 9) + 9) + (99/9)) := ((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) − (8 + 8)/8 := 8 + ((8 × (888 − 8 × 8 × 8)) + (88/8)) := ((9 + 9)/9) × ((((9 + 9)/9)9 ) + 999) := 999/9 + 9 × (9 + 9) × (9 + 9) 211 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3028 := ((111 − 1)/(1 + 1))1+1 + 1 + 1 + 1 Ï 3033 := (1 + 1 + 1) × (11 + (11 − 1)1+1+1 ) Ï 3038 := ((1 + 1 + 1) × ((1 + 1)11−1 − 11)) − 1 := 2 + (((22/2 + 2 × 22)2 ) + 2/2) := 2 × (2 + 2) + ((22/2 + 2 × 22)2 ) := 2 + ((2 + 2 + 2) × (222 + 22)) := 3 + ((3 × (3 × (333 + 3))) + 3/3) := 3 × (3 × (333 + 3) + 3) := (33/3 + 3) × ((3 + 3)3 + 3/3) 4 4 := 4 + (((4 + 4) + 4) × (4 − 4)) := 4 + (((((4 + 4) + 4) × (4 − 4)) + 4/4) + 4) := (4 + 4)/4 + (44 × ((44 + 4)/4 + 4)) := 5 + (55 × 55 − ((5 + 5)/5)) := 5 + ((55 × 55 − ((5 + 5)/5)) + 5) := 55 − (((5 + 5)/5)5 + 55) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) − ((6 + 6)/6)) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) + (6 × 6/(6 + 6))) := (6/6 + 6) × ((6 × (66 + 6)) + ((6 + 6)/6)) := 77 + (7 × (7 × 7 × 7 + 77) + (77/7)) := ((7 + 7)/7 + 7) × ((7 × 7 × 7 − 7) + 7/7) := 7 × (777 − 7 × 7 × 7) := ((8 × 8 × (88 + 8)) − 88)/((8 + 8)/8) := 8 + ((8 × 8 − (8/8 + 8))(8+8)/8 ) := 8 + ((8 − (8 + 8)/8) × ((8 × 8 × 8 − 8) + 8/8)) := 9 × (9 + 9) × (9 + 9) + ((999 + 9)/9) := 9 + ((9 × (9 + 9) × (9 + 9) + 99) + 9) := 999 + ((((9 + 9)/9)99/9 ) − 9) Ï 3029 := (1 + 1 + 11) × (11 + (1 + 1) × 111) 2 Ï 3034 := 1 + ((1 + 1 + 1) × (11 + (11 − 1)1+1+1 )) 2 Ï 3039 := (1 + 1 + 1) × ((1 + 1)11−1 − 11) := 2 + (((22/2 + 2 × 22) ) + 2) := ((2 + 2 + 2) × (22 + 22)) − 2 := (2/2 + 2) × ((222/2 − 22)/2) := 33 + (3 × 3 × 333 − 3/3) := 3/3 + (3 × (3 × (333 + 3) + 3)) := 33 + 3 × (3 × 333 + 3) := 4 + ((((4 + 4) + 4) × (4 − 4)) + 4/4) := (44 − 4)/4 + (((4 + 4) + 4) × (44 − 4)) := (4 − 4/4) × (4 × 44 − 44/4) := 5 + (55 × 55 − 5/5) := 5 + ((55 × 55 − 5/5) + 5) := 5 × 5 + (55 − 555/5) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) − 6/6) := ((66 − 6)/6) + (6 × (6 + 6) × (6 × 6 + 6)) 4 := 77 × (7 × 7 − 7) − (((7 + 7)/7)7 + 77) := 8 + ((8 × 8 − 88/8) × ((8/8 − 8) + 8 × 8)) := 9 + ((((9 + 9)/9)99/9 ) + 9 × (99 + 9)) Ï 3030 := (1 + 1 + 1) × ((11111 − 1)/11) 7 := (77 × (77/7)) + ((7 + 7 + 7)/7) := 8 + (((8 × 8 − (8/8 + 8)) (8+8)/8 := 666 + (6 × 6 × 66 − (6 × 6/(6 + 6))) := 7/7 + 7 × (777 − 7 × 7 × 7) ) + 8/8) := (88/8 − 8) × (8 × 8 × (8 + 8) − (88/8)) ) := 9 + (((9 + 9 + 9)/9) × (99/9 + 999)) Ï 3035 := 11 + ((111 − 1)/(1 + 1))1+1 − 1 Ï 3040 := 1 + ((1 + 1 + 1) × ((1 + 1)11−1 − 11)) := 9 + (((999 − 9)/(9 + 9)) (9+9)/9 := (2/2 + 2) × ((2 × (222 + 22)) − 2) := ((2 + 2 + 2) × (222 + 22)) − 2/2 := (2 × ((2 × (22 − 2) − 2/2)2 )) − 2 := 33 + 3 × 3 × 333 := 33/3 + (3 × (3 × (333 + 3))) := 3/3 + (3 × (3 × 333 + 3) + 33) := 4 + ((((4 + 4) + 4) × (4 − 4)) + (4 + 4)/4) := 44/4 + (((4 + 4) + 4) × (44 − 4)) := 4 + (44 × ((44 + 4)/4 + 4)) := 5 + 55 × 55 4 := 5 + (55 × 55 + 5) := 5 + ((55 × 55 + 5) + 5) := 6 + (6 × (6 + 6) × (6 × 6 + 6)) := 66/6 + (6 × (6 + 6) × (6 × 6 + 6)) := 666 + (6 × 6 × 66 − ((6 + 6)/6)) := 7 × (777 − 7 × 7 × 7) − (7/7 + 7) := 77/7 + (((7 + 7)/7 + 7) × (7 × 7 × 7 − 7)) := (7 + 7)/7 + 7 × (777 − 7 × 7 × 7) := (8 − (8 + 8)/8) × ((8 × 8 × 8 − 8) + 8/8) := 88/8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) := 8 × ((8 × (88 + 8) − 8)/((8 + 8)/8)) := ((9 + 9 + 9)/9) × (99/9 + 999) := 9 + ((9 × (9 + 9) × (9 + 9) + (99/9)) + 99) := (9/9 + 9 + 9) × (9 × (9 + 9) − ((9 + 9)/9)) Ï 3031 := 1 + ((1 + 1 + 1) × ((11111 − 1)/11)) Ï 3036 := 11 + ((111 − 1)/(1 + 1))1+1 Ï 3041 := 1 + (1 + ((1 + 1 + 1) × ((1 + 1)11−1 − 11))) := ((((2 × 2 × (22 − 2)) − 2)2 ) − 2)/2 := 2 + ((((22/2 + 2 × 22)2 ) + 2) + 2) := (2 + 2 + 2) × (222 + 22) := 3/3 + (3 × 3 × 333 + 33) := 3 + (3 × (3 × (333 + 3) + 3)) := 3 × 3 × 33 + ((33/3 + 3)3 ) := 4 + (((((4 + 4) + 4) × (44 − 4)) − 4/4) + 4) := 44 × ((44 + 4)/4 + 4) := 4 + ((44 × ((44 + 4)/4 + 4)) + 4/4) := 5 + (55 × 55 + 5/5) := 55/5 + 55 × 55 := 5 + (55 × 55 + (55/5)) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) + 6/6) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) + 6) := 666 + (6 × 6 × 66 − 6/6) := 7 × (777 − 7 × 7 × 7) − 7 := 7 × (777 − 7 × 7 × 7) − (7 + 7)/7 := 77 + (((7 + 7 + 7)/7)7 + 777) := ((8 × (8 × (88 + 8) − 8)) − 8)/((8 + 8)/8) := 8 + (((8 × 8 − (8/8 + 8))(8+8)/8 ) + 8) := 9 + (9 × (9 + 9) × (9 + 9) + 999/9) := 9 + ((9 − 9/9) × (9 × 99 − ((9 + 9)/9)9 )) := 8 + (((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) − 8/8) 9 := 9 + (((9 + 9)/9) × ((((9 + 9)/9) ) + 999)) Ï 3032 := ((1 + 1 + 1) × (11 + (11 − 1)1+1+1 )) − 1 Ï 3037 := 11 + ((111 − 1)/(1 + 1))1+1 + 1 Ï 3042 := (1 + 1) × ((1 + 1 + 1) × (1 + 1 + 11))1+1 := 2 × (((2 + 2 + 2)2+2 − 2) + 222) := 2/2 + ((2 + 2 + 2) × (222 + 22)) := 2 × ((2 × (22 − 2) − 2/2)2 ) := (3 × (3 × (333 + 3) + 3)) − 3/3 := 3 + ((3 × (3 × (333 + 3) + 3)) + 3/3) := 3 × ((3 × (333 + 3) + 3) + 3) 4 4 := 4 + ((((4 + 4) + 4) × (4 − 4)) + 4) := 4/4 + (44 × ((4 + 4)/4 + 4)) := (4 − 4/4) × ((4 − 44)/4 + 4 × 44 ) := 5 + (55 × 55 + ((5 + 5)/5)) := 55 × 55 + (55 + 5)/5 := 5 + (55 × 55 + ((55 + 5)/5)) := 6 + ((6 × (6 + 6) × (6 × 6 + 6)) + ((6 + 6)/6)) := 6 + (((6 × (6 + 6) × (6 × 6 + 6)) + 6/6) + 6) := 666 + 6 × 6 × 66 := 7 + (((7 × 7 − 7/7) + 7)(7+7)/7 ) := 7 × (777 − 7 × 7 × 7) − 7/7 := (7/7 + 77) × (((7 − 77)/7) + 7 × 7) := 8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) 9 := (9 − 9/9) × (9 × 99 − ((9 + 9)/9) ) := ((8 × 8 − 8) (8+8)/8 ) − (88/8 + 88) := 9 + (9 × (9 + 9) × (9 + 9) + ((999 + 9)/9)) 212 := 8 + ((((8 × 8 − (8/8 + 8))(8+8)/8 ) + 8/8) + 8) := (9 + 9) × ((9 × (9 + 9) − ((9 + 9)/9)) + 9) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3043 := 1 + ((1 + 1) × ((1 + 1 + 1) × (1 + 1 + 11))1+1 ) 2 Ï 3048 := (1 + 1)11 + (11 − 1)1+1+1 2×(2+2) Ï 3053 := (1 + (11 × ((1111 − 1)/(1 + 1))))/(1 + 1) := ((((2 × 2 × (22 − 2)) − 2)2 ) + 22)/2 := ((((2 × 2 × (22 − 2)) − 2) ) + 2)/2 := 2 × ((2 + 2 + 2) × (2 := ((3 + 3) × 33+3 ) − (33/3)3 := (3/3 + 3) × (33+3 + 33) := (((((3 × (3 + 3)) + 3)3 ) − 3)/3) − 33 := 4 + ((4 − 4/4) × (4 × 44 − 44/4)) := (4 − 4/4) × (4 × 44 − (4 + 4)) := 4/4 + (((4 + 4)4 ) − (4 × (44 + 4) + 4)) := 5 + (55 − (((5 + 5)/5)5 + 55)) := 5 × 5 + (55 × 55 − ((5 + 5)/5)) := 55 − ((((55 + 5)/5) + 55) + 5) := 6/6 + (6 × 6 × 66 + 666) := 6 + (6 × 6 × 66 + 666) := ((6 − 6/6)6−6/6 ) − (66 + 6) := 7 + (7 × (777 − 7 × 7 × 7) − ((7 + 7)/7)) := (7/7 + 7) × (7 × (7 × 7 + 7) − (77/7)) := ((7/7 − 7) + 7 × 7) × ((7/7 − 7) + 77) := 8 + (((8 − (8 + 8)/8) × (8 × 8 × 8 − 8)) + (88/8)) := (8 + 8 + 8) × (8 × (8 + 8) − 8/8) := (8 × (8 × (8 × 8 − 8 − 8))) − (88/8 + 8) := ((9 − 9/9) + 9) × ((9 × 9 − 9/9) + 99) := 9/9 + ((((9 + 9)/9)99/9 ) + 999) := 9/9 + (((9/9 + 9 + 9) + 9) × (9/9 + 99 + 9)) Ï 3049 := 1 + ((1 + 1)11 + (11 − 1)1+1+1 ) Ï 3054 := (1 + 1 + 1) × (((1 + 1)11 − (1 + 11))/(1 + 1)) Ï 3044 := (1 + 1) × (1 + ((1 + 1 + 1) × (1 + 1 + 11))1+1 ) 2 − 2)) := 2 + (((22/2 + 2 × 22)2 ) + 22) := 2 + ((22+2 − 2) × (222 − (2 + 2))) := 3/3 + ((3/3 + 3) × (33+3 + 33)) := 3 + (3 × (3 × (333 + 3 + 3))) := 4 + ((44 × ((4 + 4)/4 + 4)) + 4) := 4 + ((4/4 + 4) × ((4/4 + 4)4 − 4 × 4)) := (4 − 4/4) × (4 × 44 − ((4 + 4)/4 + 4)) := 55 − ((5 × 5 + 55) + 5/5) := 5 × 5 + (55 × 55 − 5/5) := 55 − ((55/5 + 55) + 5) := 666 + (6 × 6 × 66 + ((6 + 6)/6)) := 6 + ((6 × 6 × 66 + 666) + 6/6) := (6 × ((6 + 6) × (6 × 6 + 6) + 6)) − 6 := 7 + (7 × (777 − 7 × 7 × 7) − 7/7) := 77/7 + 7 × (777 − 7 × 7 × 7) := ((7 + 7)/7)7 + (77 × (7 × 7 − 77/7)) := ((8 × (8 × (88 + 8) − 8)) + 8)/((8 + 8)/8) := 8/8 + ((8 + 8 + 8) × (8 × (8 + 8) − 8/8)) := ((8 + 8)/8) × (8 × 8 × (8 + 8 + 8) − (8/8 + 8)) := 9 + (((9 × (9 + 9) × (9 + 9) + (99/9)) + 99) + 9) := 9 + ((9/9 + 9 + 9) × (9 × (9 + 9) − ((9 + 9)/9))) := ((9 + 9 + 9)/9) × (((999 + 9/9) + 9) + 9) := 2 + (2 × ((2 × (22 − 2) − 2/2) )) 3 := 3 + (((33/3 + 3) ) + 3 × 3 × 33) 4 Ï 3045 := (11 + (11 − 1)) × (1 + (1 + 11)1+1 ) 2 := 2 + (((((2 × 2 × (22 − 2)) − 2) ) + 2)/2) := 3 + (3 × ((3 × (333 + 3) + 3) + 3)) 4 := (4/4 + 4) × ((4/4 + 4) − 4 × 4) := 55 − (5 × 5 + 55) Ï 3050 := (1 + 111+1 ) × (1 + ((1 + 1) × (1 + 11))) Ï 3055 := ((11 × 1111) − 1)/(1 + 1 + 1 + 1) := 2 + (2 × ((2 + 2 + 2) × (22×(2+2) − 2))) := 2 + (((((2 × 2 × (22 − 2)) − 2)2 ) + 22)/2) := (3 × (3 × (333 + 3 + 3))) − 3/3 := (((((3 × (3 + 3)) + 3)3 ) + 3)/3) − 33 := 44 + (44/4 × (44 − (4 + 4)/4)) := ((4 + 4)4 ) − (4 × (44 + 4) + 4/4) := 5 × (555 + 55) := 5 + (55 × 55 + 5 × 5) := (6 × 6 − (6/6 + 6)) × (666/6 − 6) := 6 + ((6 × 6 × 66 + 666) + ((6 + 6)/6)) := (66 − 6/6) × (66/6 + 6 × 6) := 7 + 7 × (777 − 7 × 7 × 7) := (7/7 + 7 × 7) × ((77 + 7)/7 + 7 × 7) := 7 + ((7/7 + 7) × (7 × (7 × 7 + 7) − (77/7))) := (88 − 8/8) × ((88/8 + 8 + 8) + 8) := (8 + 8)/8 + ((8 + 8 + 8) × (8 × (8 + 8) − 8/8)) := (8/8 + 8 × 8) × (8 × 8 − (8/8 + 8 + 8)) := 9 + ((9 × (9 + 9) × (9 + 9) + 999/9) + 9) := ((9/9 + 9 + 9) × (9 × (9 + 9) − 9/9)) − 9 := (9 + 9) × (99 + 9) + 9999/9 Ï 3046 := 1 + ((11 + (11 − 1)) × (1 + (1 + 11)1+1 )) 2 := 2 × (((2 × (22 − 2) − 2/2) ) + 2) := 3 + (((3 + 3) × 33+3 ) − (33/3)3 ) := 44 × 44 + (4444 − 4)/4 5 Ï 3051 := (1 + 1 + 111) × (1 + 1 + 1)1+1+1 Ï 3056 := 1 + (((11 × 1111) − 1)/(1 + 1 + 1 + 1)) := 2 + ((((22/2 + 2 × 22)2 ) + 22) + 2) := 2 × (2 × (2 × ((22+2 × (22 + 2)) − 2))) := 3 × (3 × (333 + 3 + 3)) := (33/3)3 + ((3 × 3 + 3)3 − 3) := 4 + (4444/4 + 44 × 44) := 4 × (4 × 44 − (44 + 4)) := 5 + ((5/5 − (5 × (5 + 5 + 5))) + 55 ) := 5 + (5/5 − (5 × 5 + 55)) := 5 × 5 + (55 × 55 + 5/5) := 6 + ((6 × 6 × 66 − ((6 + 6)/6)) + 666) := 6 + ((6 × 6 − (6/6 + 6)) × (666/6 − 6)) := 6/6 + ((66 − 6/6) × (66/6 + 6 × 6)) := 7 + (7 × (777 − 7 × 7 × 7) + 7/7) := 777/7 + 7 × (7 × 7 × 7 + 77) := ((8 × 8 − 8)(8+8)/8 ) − ((8 + 8)/8 + 88) := 7 + (7 × (777 − 7 × 7 × 7) + (77/7)) := (88/8 − 8) × ((8 × 8 × (8 + 8) − 8) + 8/8) := (8 + 8) × (8 × (8 + 8 + 8) − 8/8) := (9 + 9 + 9) × ((999 + 9 + 9)/9) := 9 + ((((9 + 9)/9)99/9 ) + 999) 99/9 := 999 + ((((9 + 9)/9) ) − 9/9) Ï 3047 := 11 × (1 + ((1 + 11) × (1 + (11 + 11)))) := 22 + ((22/2 + 2 × 22)2 ) := 33/3 × (((3 3+3 + 3)/3) + 33) Ï 3052 := 1 + ((1 + 1 + 111) × (1 + 1 + 1)1+1+1 ) Ï 3057 := (1 + 1 + 1) × ((1 + (1 + 1)11 − 11)/(1 + 1)) := (22+2 − 2) × (222 − (2 + 2)) := ((22 × (22×(2+2) + 22)) − 2)/2 := 3/3 + (3 × (3 × (333 + 3 + 3))) := 33 + (3 × (3 × (333 + 3))) := 44 × 44 + 4444/4 := ((4 + 4) ) − (4 × (4 + 4) + 4) := 4/4 + (4 × (4 × 44 − (44 + 4))) := 55 + ((5 + 5)/5 − (5 × 5 + 55)) := 5 × 5 + (55 × 55 + ((5 + 5)/5)) := 55 × 55 + ((5 + 5)/5)5 := 6 + ((6 × 6 × 66 − 6/6) + 666) 4 4 := 666 + (6 × 6 × 66 + ((66 − 6)/6)) := (66 × (6 × 6 + 6 + 6)) − 666/6 := 7 + (7 × (777 − 7 × 7 × 7) + ((7 + 7)/7)) := 7 + (7 × (777 − 7 × 7 × 7) + 7) := 7 + ((7/7 + 7 × 7) × ((77 + 7)/7 + 7 × 7)) := ((8 × 8 − 8)(8+8)/8 ) − (8/8 + 88) := (8 − 8/8) × (888/((8 + 8)/8) − 8) := 8/8 + ((8 + 8) × (8 × (8 + 8 + 8) − 8/8)) := 999 + (((9 + 9)/9)99/9 ) := ((9/9 + 9 + 9) + 9) × (9/9 + 99 + 9) := ((9 + 9 + 9)/9) × ((99/9 + 999) + 9) 213 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3058 := 11 × ((1 + 1111)/(1 + 1 + 1 + 1)) Ï 3063 := (1 + 1 + 1) × ((1 + 1)11−1 − 1 − 1 − 1) Ï 3068 := ((1 + 1 + 1) × ((1 + 1)11−1 − 1)) − 1 := 22 × ((22×(2+2) + 22)/2) := (2/2 + 2) × (((222/2 − 2)/2) − 2) := 2 × (((2 + 2 + 2) × 22×(2+2) ) − 2) := 3 + ((((((3 × (3 + 3)) + 3)3 ) + 3)/3) − 33) := 3 + ((33 + 3) × (3 × 33 + 3)) := (33 × ((3 × (33 + 3)) + 3)) − 3/3 := ((4 + 4)4 ) + ((4 + 4)/4 − 4 × (44 + 4)) := (4 − 4/4) × ((4 × 44 − 4) + 4/4) := (44 × ((4 + 4) + 4)) − 4 := 55 − (((55 + 5)/5) + 55) := 55 + ((5 − 55 /5)/(5 + 5)) := 55 − ((5 + 5)/5 + 55) := 6 + ((66 × (6 × 6 + 6 + 6)) − 666/6) := 6 + ((6 × ((6 + 6) × (6 × 6 + 6) + 6)) + ((6 + 6)/6)) := ((77/7 − 7) × (777 + 7/7)) − 7 × 7 := ((7 + 7)/7)7 + 7 × (7 × 7 × 7 + 77) := ((6 − 6/6)6−6/6 ) − (66 + 6/6) := ((7 × 7 + 7) (7+7)/7 ) − 7/7 − 77 := ((8 − (8 + 8)/8) × (8 × 8 × 8 − 8/8)) − 8 := (8 × (8 × (8 × 8 − 8 − 8))) − (8/8 + 8) := ((8 × 8 × (88 + 8)) − 8)/((8 + 8)/8) := ((9 + 9) × (9 × (9 + 9) + 9)) − (99/9 + 9) := ((((9 + 9)/9)9 ) × (9 − ((9 + 9 + 9)/9))) − 9 := ((9 + 9) × (9 × (9 + 9) + 9)) − 9/9 − 9 Ï 3069 := (1 + 1 + 1) × ((1 + 1)11−1 − 1) Ï 3059 := 111+1+1 + ((1 + 11)1+1+1 ) Ï 3064 := ((1 + 1 + 1) × (1 + (1 + 1)11−1 )) − 11 := (22 + 2/2) × (222/2 + 22) := 2 × (2 × ((2 × (22+2 × (22 + 2))) − 2)) := (2/2 + 2) × ((222/2 − 2)/2) := (33/3)3 + (3 × 3 + 3)3 := 3 + (((33 + 3) × (3 × 33 + 3)) + 3/3) := 33 × ((3 × (33 + 3)) + 3) := ((4 − 4/4) × (4 × 44 − 4)) − 4/4 := (44 × ((4 + 4) + 4)) − 4 − 4 := 4/4 + ((44 × ((4 + 4) + 4)) − 4) := 55 − (55/5 + 55) := 55 − ((55 + 5/5) + 5) := 55 − (55 + 5/5) := ((6 − 6/6)6−6/6 ) − 66 := 6 + (((6 − 6/6)6−6/6 ) − (66 + 6/6)) := 6 × (6 × 66 − 6) + ((6 × 6/(6 + 6))6 ) := ((7 × 7 + 7)(7+7)/7 ) − 77 := (77/7 − 7) × (777 − (77/7)) := ((7 + 7)/7 + 7) × (7 × 7 × 7 − ((7 + 7)/7)) := (8 − 8/8) × (8 × (8 × 8 − 8) − (88/8)) := (8 × (8 × (8 × 8 − 8 − 8))) − 8 := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) − (88/8)) := (9/9 + 9 + 9) × (9 × (9 + 9) − 9/9) := 9 + ((9 + 9) × (99 + 9) + 9999/9) := ((9 + 9) × (9 × (9 + 9) + 9)) − 9 Ï 3060 := (1 + 11) × (111 + (1 + 11)1+1 ) Ï 3065 := ((1 + 1 + 1) × ((1 + 1)11−1 − (1 + 1))) − 1 Ï 3070 := 1 + ((1 + 1 + 1) × ((1 + 1)11−1 − 1)) := (2 + 2 + 2) × (2(2/2+2) ) − 2) := 2 + ((2/2 + 2) × (((222/2 − 2)/2) − 2)) := (2 × ((2 + 2 + 2) × 22×(2+2) )) − 2 := (33 + 3) × (3 × 33 + 3) := 3 + (((33/3)3 + (3 × 3 + 3)3 ) + 3) := 3/3 + (33 × ((3 × (33 + 3)) + 3)) := (4 − 4/4) × (4 × 44 − 4) := 4 + ((44 × ((4 + 4) + 4)) − 44/4) := (44 × ((4 + 4) + 4)) − (4 + 4)/4 := 55 − (55 + 5 + 5) := 55 − (55 + 5) := 55 − 55 := 6 × ((6 + 6) × (6 × 6 + 6) + 6) := 6 + (((6 − 6/6)6−6/6 ) − 66) := 66/6 + (((6 − 6/6)6−6/6 ) − 66) := 7/7 + (((7 × 7 + 7)(7+7)/7 ) − 77) := 7 + (((7 × 7 + 7)(7+7)/7 ) − (7/7 + 77)) := 77/7 + (((7 × 7 + 7)(7+7)/7 ) − 77) := (8 − (8 + 8)/8) × (8 × 8 × 8 − ((8 + 8)/8)) := 8/8 + ((8 × (8 × (8 × 8 − 8 − 8))) − 8) 2 := (9 + 9) × ((9 × (9 + 9) − 9/9) + 9) Ï 3061 := ((1 + 1 + 1) × (1 + 1)11−1 ) − 11 99/9 := 9 + (((((9 + 9)/9) ) + 999) + 9) Ï 3066 := (1 + 1 + 1) × ((1 + 1)11−1 − (1 + 1)) := (8 × (8 × (8 × 8 − 8 − 8))) − (8 + 8)/8 := 9/9 + (((9 + 9) × (9 × (9 + 9) + 9)) − 9) Ï 3071 := ((1 + 1 + 1) × (1 + 1)11−1 ) − 1 := (((2/2 + 2) × 222/2 ) − 22)/2 := (2/2 + 2) × ((22×(2+2)+2 ) − 2) := (((2/2 + 2) × 222/2 ) − 2)/2 := 3/3 + ((33 + 3) × (3 × 33 + 3)) := (33/3 + 3) × ((3 + 3)3 + 3) := ((3 + 3) × ((3 − 3/3)3×3 )) − 3/3 := (44 × ((4 + 4) + 4)) − 44/4 := (4 − 4/4) × (4 × 44 − (4 + 4)/4) := (44 × ((4 + 4) + 4)) − 4/4 := 55 + (5/5 − (55 + 5 + 5)) := 55 + (5/5 − (55 + 5)) := 55 + (5/5 − 55) := 6/6 + (6 × ((6 + 6) × (6 × 6 + 6) + 6)) := 6 + (6 × ((6 + 6) × (6 × 6 + 6) + 6)) := 6 + ((((6 − 6/6)6−6/6 ) − 66) + 6) := (7 + 7)/7 + (((7 × 7 + 7)(7+7)/7 ) − 77) := 7 + (((7 × 7 + 7)(7+7)/7 ) − 77) := (((7 + 7)/7 + 7) × (7 × 7 × 7 − 7/7)) − 7 := (8 × (8 × (8 × 8 − 8 − 8))) − 88/8 := (8 − (8 + 8)/8) × (8 × 8 × 8 − 8/8) := (8 × (8 × (8 × 8 − 8 − 8))) − 8/8 := 9/9 + ((9 + 9) × ((9 × (9 + 9) − 9/9) + 9)) := ((9 + 9) × (9 × (9 + 9) + 9)) − (99 + 9)/9 := (9 + 9)/9 + (((9 + 9) × (9 × (9 + 9) + 9)) − 9) Ï 3062 := 1 + (((1 + 1 + 1) × (1 + 1)11−1 ) − 11) Ï 3067 := 1 + ((1 + 1 + 1) × ((1 + 1)11−1 − (1 + 1))) Ï 3072 := (1 + 1 + 1) × (1 + 1)11−1 := 2 + ((2 + 2 + 2) × (2(2/2+2) ) − 2)) := ((2/2 + 2) × ((222/2 − 2)/2)) − 2 := 2 × ((2 + 2 + 2) × 22×(2+2) ) := 3 + ((33/3)3 + (3 × 3 + 3)3 ) := 3/3 + ((33/3 + 3) × ((3 + 3)3 + 3)) := (3 + 3) × ((3 − 3/3)3×3 ) := (4 − 44)/4 + (44 × ((4 + 4) + 4)) := (44 × ((4 + 4) + 4)) − (4/4 + 4) := 44 × ((4 + 4) + 4) := 55 − (55 /5 + 5)/(5 + 5) := 55 + ((5 + 5)/5 − (55 + 5)) := 55 + ((5 + 5)/5 − 55) := (6 + 6)/6 + (6 × ((6 + 6) × (6 × 6 + 6) + 6)) := 6 + ((6 × ((6 + 6) × (6 × 6 + 6) + 6)) + 6/6) := (6 × 6 + 6 + 6) × ((6 + 6)/6)6 := 777 + (((7 + 7 + 7)/7)7 + 7 × (7 + 7)) := 7 + ((((7 × 7 + 7)(7+7)/7 ) − 77) + 7/7) := (7 − 7/7) × ((7/7 + 7)(7+7+7)/7 ) := (8 − 88)/8 + (8 × (8 × (8 × 8 − 8 − 8))) := 8 + ((8 − 8/8) × (8 × (8 × 8 − 8) − (88/8))) := 8 × (8 × (8 × 8 − 8 − 8)) := (9 + 9)/9 + ((9 + 9) × ((9 × (9 + 9) − 9/9) + 9)) := ((9 + 9) × (9 × (9 + 9) + 9)) − 99/9 := (((9 + 9)/9)9 ) × (9 − ((9 + 9 + 9)/9)) 2 214 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3073 := 1 + ((1 + 1 + 1) × (1 + 1)11−1 ) Ï 3078 := (1 + 1 + 1) × (1 + 1 + (1 + 1)11−1 ) Ï 3083 := 11 + ((1 + 1 + 1) × (1 + 1)11−1 ) := (((2/2 + 2) × 222/2 ) + 2)/2 := (2/2 + 2) × ((22×(2+2)+2 ) + 2) := (((2/2 + 2) × 222/2 ) + 22)/2 := 3/3 + ((3 + 3) × ((3 − 3/3)3×3 )) := 3 × (3 × 333 + 33 ) := (((((3 × (3 + 3)) + 3)3 ) − 3)/3) − 3 := 4/4 + (44 × ((4 + 4) + 4)) := 4 + ((44 × ((4 + 4) + 4)) + (4 + 4)/4) := 44/4 + (44 × ((4 + 4) + 4)) := 5 + (55 − ((5 + 5)/5 + 55)) := 5 + ((55 − ((5 + 5)/5 + 55)) + 5) := 55 − ((((5 + 5)/5)5 + 5) + 5) := 6/6 + ((6 × 6 + 6 + 6) × ((6 + 6)/6)6 ) := 666 + 6 × (6 × 66 + 6) := ((6 − 6/6)6−6/6 ) − (6 × 6 + 6) := 7 × 7 × (7 × 7 + 7 + 7) − (7 + 7) := ((7 + 7)/7 + 7) × (7 × 7 × 7 − 7/7) := 7 + (7 × 7 × (7 × 7 + 7 + 7) − (77/7)) := 8/8 + (8 × (8 × (8 × 8 − 8 − 8))) := (8 − (8 + 8)/8) × (8 × 8 × 8 + 8/8) := 88/8 + (8 × (8 × (8 × 8 − 8 − 8))) := (9 + 9) × (9 × (9 + 9) + 9) := ((9 × 9 + 9)/(9 + 9)) + ((9 + 9) × (9 × (9 + 9) + 9)) 9 := 9/9 + ((((9 + 9)/9) ) × (9 − ((9 + 9 + 9)/9))) Ï 3074 := 1 + (1 + ((1 + 1 + 1) × (1 + 1)11−1 )) Ï 3079 := 1 + ((1 + 1 + 1) × (1 + 1 + (1 + 1)11−1 )) Ï 3084 := 1 + (11 + ((1 + 1 + 1) × (1 + 1)11−1 )) := 2 + (2 × ((2 + 2 + 2) × 22×(2+2) )) := (2 × (2 × (22 − 2))2 ) − (22/2)2 := 2 × ((2 × 22 − 2)2 − 222) := 333 + (((33/3 + 3)3 ) − 3) := 3 + (((((3 × (3 + 3)) + 3)3 ) − 33)/3) := ((((3 × (3 + 3)) + 3)3 )/3) − 3 := (4 + 4)/4 + (44 × ((4 + 4) + 4)) 4 := 4 + (((4 × ((4 + 4) + 4)) − 4/4) + 4) 5 := (4 − 4/4) × (4 × 44 + 4) := 5 + (55 − (55 + 5/5)) := 5 + ((5 − (55 + 5/5)) + 5) := 55 − (55/5 + 5 × 5 + 5) := 66 + (((6 + 6)/6)6 × (66/6 + 6 × 6)) := 6/6 + (6 × (6 × 66 + 6) + 666) := 6 + (6 × (6 × 66 + 6) + 666) := 7/7 + (7 × 7 × (7 × 7 + 7 + 7) − (7 + 7)) := 7 × 7 × (7 × 7 + 7 + 7) − (7/7 + 7) := (77/7 − 7) × ((777 − 7) + 7/7) := (8 + 8)/8 + (8 × (8 × (8 × 8 − 8 − 8))) := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) − 8/8) := 8 + (((8 × 8 × (88 + 8)) + 8)/((8 + 8)/8)) := ((9 + 9)/9) × ((9 × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) := 9/9 + ((9 + 9) × (9 × (9 + 9) + 9)) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) − ((9 + 9 + 9)/9)) Ï 3080 := ((1111+1 ) − 1)/(1 + 1 + 1 + 1) Ï 3085 := 1 + (1 + (11 + ((1 + 1 + 1) × (1 + 1)11−1 ))) := (2/2 + 2) × ((222/2 + 2)/2) := (2 − 222) × (2 − 22+2 ) := 2 + ((((2/2 + 2) × 222/2 ) + 22)/2) := 3 + ((3 + 3) × ((3 − 3/3)3×3 )) := 3 + (((33/3 + 3)3 ) + 333) := ((((3 × (3 + 3)) + 3)3 ) − (3 + 3))/3 := 4 + ((44 × ((4 + 4) + 4)) − 4/4) := 4 + ((44 × ((4 + 4) + 4)) + 4) := 4 + (((4/4 + 4)4+4/4 ) − 44) := 5 + (55 − 55) := 5 + ((55 − 55) + 5) := 5 + (((55 − 55) + 5) + 5) := 6 + (6 × (6 × 66 − 6) + ((6 × 6/(6 + 6))6 )) := 66/6 × (((6 + 6)/6)6 + 6 × 6 × 6) := ((6 + 6) × (6 × (6 × 6 + 6) + 6)) − 66/6 := (7/7 + 7 + 7) × (((7 + 7)/7) + 77) := 7 × 7 × (7 × 7 + 7 + 7) − 7 := 7 × 7 × (7 × 7 + 7 + 7) − (7 + 7)/7 := 888 + ((88/8 − 8)8−8/8 ) := 8 + (8 × (8 × (8 × 8 − 8 − 8))) := 88 + (888/8 × (88/8 + 8 + 8)) := (9 + 9)/9 + ((9 + 9) × (9 × (9 + 9) + 9)) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) Ï 3075 := (1 + 1 + 1) × (1 + (1 + 1)11−1 ) 7 := ((9 + 9) × (9 × (9 + 9) + 9)) − (9 + 9 + 9)/9 Ï 3076 := 1 + ((1 + 1 + 1) × (1 + (1 + 1)11−1 )) Ï 3081 := 1 + (((1111+1 ) − 1)/(1 + 1 + 1 + 1)) Ï 3086 := 11 + ((1 + 1 + 1) × (1 + (1 + 1)11−1 )) := 2 × (((2 + 2 + 2) × 22×(2+2) ) + 2) := 2/2 + ((2 − 222) × (2 − 22+2 )) := (222 × (22+2 − 2)) − 22 := ((((3 × (3 + 3)) + 3)3 ) − 33)/3 := 3 + (3 × (3 × 333 + 33 )) := ((((3 × (3 + 3)) + 3)3 ) − 3)/3 := 4 + (44 × ((4 + 4) + 4)) := ((4/4 + 4)4+4/4 ) − 44 := 4 + ((44 × ((4 + 4) + 4)) + (44 − 4)/4) := 5 + ((55 − 55) + 5/5) := 55 + (55/5 − 55) := 5 + ((55/5 − 55) + 55 ) := 666 + (6 × (6 × 66 + 6) − ((6 + 6)/6)) := 6666 × 6/(6 + 6) − 6 × (6 × 6 + 6) := 6 + ((66/6) × (((6 + 6)/6)6 + 6 × 6 × 6)) := 7 × 7 × (7 × 7 + 7 + 7) − 77/7 := 7/7 + (7 × 7 × (7 × 7 + 7 + 7) − 7) := 7 × 7 × (7 × 7 + 7 + 7) − 7/7 := ((8 × 8 × (88 + 8)) + 8)/((8 + 8)/8) := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) + 8/8) := 8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 + 8/8)) 9 := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) − 9/9) := ((9 + 9) × (9 × (9 + 9) + 9)) − (9 + 9)/9 := 9 + ((((9 + 9)/9) ) × (9 − ((9 + 9 + 9)/9))) Ï 3087 := ((11 + (11 − 1))1+1+1 )/(1 + 1 + 1) Ï 3077 := 1 + (1 + ((1 + 1 + 1) × (1 + (1 + 1)11−1 ))) Ï 3082 := 11 + (((1 + 1 + 1) × (1 + 1)11−1 ) − 1) := 2 + ((2/2 + 2) × ((222/2 + 2)/2)) := 2 + ((2 − 222) × (2 − 22+2 )) := ((2/2 + 2 + 2) + 2) × ((22 − 2/2)2 ) := 333 + ((33/3 + 3)3 ) := (((((3 × (3 + 3)) + 3)3 ) + 3)/3) − 3 − 3 := (((3 × (3 + 3)) + 3)3 )/3 := 4 + ((44 × ((4 + 4) + 4)) + 4/4) := (44 − 4)/4 + (44 × ((4 + 4) + 4)) := 4 + ((44 × ((4 + 4) + 4)) + 44/4) := 5 + (((5 + 5)/5 − 55) + 55 ) := 55 + (((55 + 5)/5) − 55) := 5 + ((((55 + 5)/5) − 55) + 55 ) := 666 + (6 × (6 × 66 + 6) − 6/6) := (66 + 6/6) × (((66 − 6)/6) + 6 × 6) := ((6 − 6/6)6−6/6 ) − ((6 + 6)/6 + 6 × 6) := ((7 − 77)/7) + 7 × 7 × (7 × 7 + 7 + 7) := (7 + 7)/7 + (7 × 7 × (7 × 7 + 7 + 7) − 7) := 7 × 7 × (7 × 7 + 7 + 7) := 8 + (((8 × (8 × (8 × 8 − 8 − 8))) − (88/8)) + 8) := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) + ((8 + 8)/8)) := 8 + (((8 × (8 × (8 × 8 − 8 − 8))) − 8/8) + 8) := ((9 + 9) × (9 × (9 + 9) + 9)) − 9/9 := ((9 + 9)/9) × ((9 × (9 × (9 + 9) + 9)) + ((9 + 9)/9)) := 9 + ((9 + 9) × (9 × (9 + 9) + 9)) 215 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3088 := 1 + (((11 + (11 − 1))1+1+1 )/(1 + 1 + 1)) Ï 3093 := (1 + 1 + 1 + 11) × ((1 + 1) × 111 − 1) − 1 Ï 3098 := 1 + (1 + (((1 + 1)1+11 ) − (11 − 1)1+1+1 )) := 2 × (2 × 222 + ((22 + 2)2 )) := 22 + ((((2/2 + 2) × 222/2 ) − 2)/2) := 2 + (2 × ((2 + 2 + 2) × (22×(2+2) + 2))) := ((((3 × (3 + 3)) + 3)3 ) + 3)/3 := 3 + (((((3 × (3 + 3)) + 3)3 )/3) + 3) := ((((3 × (3 + 3)) + 3)3 ) + 33)/3 := 4 × ((4 × (4 × (44 + 4))) + 4) := ((4/4 + 4)4+4/4 ) − 4 × (4 + 4) := 4 + ((44/4 × ((4 + 4)/4 + 44 )) + 44 ) := 55 − (((5 + 5)/5)5 + 5) := 55 − ((5 + 5)/5)5 := 5 + (55 − ((5 + 5)/5)5 ) := ((6 + 6)/6)6 + (6 × (6 + 6) × (6 × 6 + 6)) := 6 × 6 × 66 + (((6 × 6/(6 + 6))6 ) − (6 + 6)) := (6 + 6)/6 + ((6 + 6) × (6 × (6 × 6 + 6) + 6)) := 7/7 + 7 × 7 × (7 × 7 + 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7 + 7) − 7/7) := 77/7 + 7 × 7 × (7 × 7 + 7 + 7) := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) + 8) := (88/8 − 8) × ((8 × 8 × (8 + 8) − 8/8) + 8) := (8 + 8)/8 + ((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) + 9/9) := 99 + (((9 + 9 + 9)/9) × (999 − 9/9)) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) + (99/9)) Ï 3089 := 11 + ((1 + 1 + 1) × (1 + 1 + (1 + 1)11−1 )) := (2 × (2 × (22 − 2))2 ) − 222/2 Ï 3094 := (1 + (1 + 1 + 11)) × ((1 + 1) × 111 − 1) Ï 3099 := (1 + 1 + 1) × (11 + ((1 + 1)11−1 − (1 + 1))) := (22 + 2 + 2) × ((22/2)2 − 2) := 2 + ((222 × (22+2 − 2)) − 22/2) := 3 + ((((((3 × (3 + 3)) + 3)3 ) + 3)/3) + 3) := 3 + (3 × (3 × 333 + 33)) := 4 × 4 + ((4 × ((4 + 4) + 4)) + 4/4) := 44 + (44/4 × ((4 + 4)/4 + 44 )) := 4 × 4 + ((44 × ((4 + 4) + 4)) + 44/4) := 55 − (55/5 + 5 × 5) := 55 − ((5 × 5 + 5/5) + 5) := 55 − (5 × 5 + 5/5) := ((6 − 6/6)6−6/6 ) − 6 × 6 := ((6 + 6) × (6 × (6 × 6 + 6) + 6)) − (6 + 6)/6 := 6 × 6 × 66 + (((6 × 6/(6 + 6))6 ) − 6) := (7 + 7)/7 + 7 × 7 × (7 × 7 + 7 + 7) := 7 + 7 × 7 × (7 × 7 + 7 + 7) := (77 + 7)/7 + 7 × 7 × (7 × 7 + 7 + 7) := 8 + (((8 × (8 × (8 × 8 − 8 − 8))) + 8/8) + 8) := 8 + (((8 − (8 + 8)/8) × (8 × 8 × 8 + 8/8)) + 8) := 8 + (((8 × (8 × (8 × 8 − 8 − 8))) + (88/8)) + 8) := 99/9 + ((9 + 9) × (9 × (9 + 9) + 9)) := 9 + ((((9 + 9) × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) + 9) := (999/9 × ((9/9 + 9 + 9) + 9)) − 9 3 := 3 + (((((3 × (3 + 3)) + 3) ) − 3)/3) 4 Ï 3090 := (1 + 1 + 1) × ((1 + (11 + (1 + 1)11 ))/(1 + 1)) Ï 3095 := 1 + (1 + 1 + 1 + 11) × ((1 + 1) × 111 − 1) Ï 3100 := (1 + 1) × ((11 − 1) × (11 + (1 + 11)1+1 )) := 2 + ((2 × ((22 + 2)2 )) + (2 × 22)2 ) := (((22 + 2) × (22×(2+2) + 2)) − 2)/2 := 2 × (((2 + 2 + 2) × (22×(2+2) + 2)) + 2) := 3 + ((((3 × (3 + 3)) + 3)3 )/3) := 3 × 3 + (((((3 × (3 + 3)) + 3)3 ) − 3)/3) := 3 + ((3 × (3 × 333 + 33)) + 3/3) := 4 × 4 + ((4 × ((4 + 4) + 4)) + (4 + 4)/4) := 44/4 + ((4 − 4/4) × (4 × 4 + 4)) := 4 + ((4 − 4/4) × ((4 × 44 + 4) + 4)) := 55 − ((5 × 5 + 5) + 5) := 55 − (5 × 5 + 5) := 55 − 5 × 5 := 66 + (6 × (6 + 6) × (6 × 6 + 6)) := 6 + (((6 − 6/6)6−6/6 ) − 6 × 6) := (66 × (66/6 + 6 × 6)) − (6 + 6)/6 := (7 + 7 + 7)/7 + 7 × 7 × (7 × 7 + 7 + 7) := 7 + (7 × 7 × (7 × 7 + 7 + 7) + 7/7) := 7 + ((7 × 7 × (7 × 7 + 7 + 7) − 7/7) + 7) := 8 + (((8 × (8 × (8 × 8 − 8 − 8))) + ((8 + 8)/8)) + 8) := ((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) − 8/8 := ((8 × (8 × (88 + 8) + 8)) − 8)/((8 + 8)/8) := (99 + 9)/9 + ((9 + 9) × (9 × (9 + 9) + 9)) := 9 + ((((9 + 9) × (9 × (9 + 9) + 9)) − 9/9) + 9) := (9/9 + 99) × (((99 + 99)/9) + 9) 4 Ï 3091 := 11 + (((1111+1 ) − 1)/(1 + 1 + 1 + 1)) 4 Ï 3096 := ((1 + 1)1+11 ) − (11 − 1)1+1+1 Ï 3101 := ((1 + 1 + 1) × (11 + ((1 + 1)11−1 − 1))) − 1 := 2 + ((2 × (2 × (22 − 2))2 ) − 222/2) := 2 × ((2 + 2 + 2) × (22×(2+2) + 2)) := ((2/2 + 2 + 2) + 2) × (((22 − 2/2)2 ) + 2) := 3 + (((((3 × (3 + 3)) + 3)3 ) + 3)/3) := 3 × (3 × 333 + 33) := 3 + (((((3 × (3 + 3)) + 3)3 ) + 33)/3) := 4 + (((44 × ((4 + 4) + 4)) + 44/4) + 4) := (4 − 4/4) × ((4 × 44 + 4) + 4) := ((4 − 4/4) + 4) × (444 − 4/4) 5 := 5 + (5/5 − ((5 × 5 + 5) + 5)) 5 := 5 + (5/5 − (5 × 5 + 5)) := 55 + (5/5 − 5 × 5) := 66 + ((6 × (6 + 6) × (6 × 6 + 6)) + 6/6) := (6 + 6) × (6 × (6 × 6 + 6) + 6) := (66 × (66/6 + 6 × 6)) − 6/6 := 77/7 + (7 × 7 × (7 × 7 + 7 + 7) − 7) := ((7 + 7)/7 + 7) × (7 × 7 × 7 + 7/7) := 7 + (7 × 7 × (7 × 7 + 7 + 7) + 7) := 8 + ((8 × (8 × (8 × 8 − 8 − 8))) + (88/8)) := (8 + 8 + 8) × (8 × (8 + 8) + 8/8) := (8 − 8/8) × (888/((8 + 8)/8) − 8/8) := 9999/9 + (99 × (99/9 + 9)) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) + 9) := 9 + ((99999/9) − 9 × 9 × 99) Ï 3092 := 1 + (11 + (((1111+1 ) − 1)/(1 + 1 + 1 + 1))) Ï 3097 := 1 + (((1 + 1)1+11 ) − (11 − 1)1+1+1 ) Ï 3102 := (1 + 1 + 1) × (11 + ((1 + 1)11−1 − 1)) := 2 × ((2 × 222 + ((22 + 2)2 )) + 2) := (222 × (22+2 − 2)) − 22/2 := 22 × (((22/2)2 − 2) + 22) := 3 + ((((((3 × (3 + 3)) + 3)3 ) − 3)/3) + 3) := 3 × 3 + (((((3 × (3 + 3)) + 3)3 ) + 3)/3) := 3 + ((3 × (3 × 333 + 33)) + 3) 4 4+4/4 := (4 − 4/4) × ((44 − 4)/4 + 4 × 44 ) := 4 + ((4 × ((4 + 4) + 4)) + 4 × 4) := 4 + (((4/4 + 4) := 55 − (((5 + 5)/5)5 + 5/5) := 55 + ((5 + 5)/5 − (5 × 5 + 5)) := 55 + ((5 + 5)/5 − 5 × 5) := 66 + ((6 × (6 + 6) × (6 × 6 + 6)) + ((6 + 6)/6)) := 6/6 + ((6 + 6) × (6 × (6 × 6 + 6) + 6)) := 66 × (66/6 + 6 × 6) := 7 + (7 × 7 × (7 × 7 + 7 + 7) − ((7 + 7)/7)) := ((77 − 7)/7) + 7 × 7 × (7 × 7 + 7 + 7) := 7 + ((7 × 7 × (7 × 7 + 7 + 7) + 7/7) + 7) := 8 + ((((8 × 8 × (88 + 8)) + 8)/((8 + 8)/8)) + 8) := 8/8 + ((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) := (((8 + 8)/8) + 8 × 8) × (8 × 8 − (8/8 + 8 + 8)) := (99999/9) − 9 × 9 × 99 := (9/9 + 9 + 9) × (9 × (9 + 9) + 9/9) := 99/9 × ((999/9 + 9 × (9 + 9)) + 9) ) − 4 × (4 + 4)) 216 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3103 := 1 + ((1 + 1 + 1) × (11 + ((1 + 1)11−1 − 1))) Ï 3108 := (1 + 1) × (111 × (1 + (1 + 1 + 11))) Ï 3113 := 11 × (((1 + 1) × ((1 + 11)1+1 − (1 + 1))) − 1) := ((2/2 + 2 + 2)2/2+2+2 ) − 22 := 222 × (22+2 − 2) := 2 + (((222 × (22+2 − 2)) + 2/2) + 2) := 33 + (((((3 × (3 + 3)) + 3)3 ) − 33)/3) := (33 + 3/3) × 333/3 := 33 + (((((3 × (3 + 3)) + 3)3 ) − 3)/3) := 4 × (4 + 4) + ((44 × ((4 + 4) + 4)) − 4/4) := 444 × ((4 − 4/4) + 4) := 4 + (((4/4 + 4)4+4/4 ) − 4 × 4) := 55 − (55 + 55)/5 := 55 − (((55 + 5)/5) + 5) := 55 − (55 + 5)/5 := 6/6 + (66 × (66/6 + 6 × 6)) := 6 + (66 × (66/6 + 6 × 6)) := ((6 − 6/6)6−6/6 ) − 6 − 6 := 7 + (((7 + 7)/7 + 7) × (7 × 7 × 7 + 7/7)) := 777 × (77/7 − 7) := 7 + (77 × (7 × 7 − 7) − ((7 + 7)/7)7 ) := 8 + (((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) − 8/8) := (8 − 8/8) × 888/((8 + 8)/8) := (99/9 + 9 + 9) × ((99 − 9/9) + 9) := 999/9 × ((9/9 + 9 + 9) + 9) := 88 + ((8 × 8 − (8/8 + 8))(8+8)/8 ) Ï 3104 := ((1 + 1 + 1) × (11 + (1 + 1)11−1 )) − 1 := 2 2+2 × (((2 2+2 2 Ï 3109 := 1 + ((1 + 1) × (111 × (1 + (1 + 1 + 11)))) := 2/2 + (222 × (2 − 2) ) − 2) 3 := 3 + ((((((3 × (3 + 3)) + 3) ) + 33)/3) + 3) := 4 × (((4 × (4 × (44 + 4))) + 4) + 4) 5 2+2 − 2)) 3 := ((333 × (3 + 3/3)) + 3)/3 := ((4/4 + 4) 4+4/4 )−4×4 5 := ((9 + 9) × (99/9 + 9 × (9 + 9))) − 9/9 Ï 3114 := ((1 + 111)/(1 + 1))1+1 − 11 − 11 := ((2 × (22 + 2 + 2 + 2))2 ) − 22 := 3 × (3 × (((3/3 + 3 + 3)3 ) + 3)) := ((4/4 + 4)4/4+4 ) − 44/4 := 5 + (5 − (5 × 5 + 5/5)) := 5 − (55/5 + 5) := 55 − 55/5 := (6 + 6)/6 + (66 × (66/6 + 6 × 6)) := 6 + ((66 × (66/6 + 6 × 6)) + 6/6) := 6 + ((66 × (66/6 + 6 × 6)) + 6) := (77/7 − 7) × (777 − 7/7) := 7/7 + (777 × (77/7 − 7)) := 7 + ((777 × (77/7 − 7)) − 7/7) := 8 + ((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) := 8/8 + ((8 − 8/8) × 888/((8 + 8)/8)) := (8 − (8 + 8)/8) × ((8 × 8 × 8 − 8/8) + 8) := 9 + (((((9 + 9) × (9 × (9 + 9) + 9)) − 9/9) + 9) + 9) := 9 + ((9/9 + 99) × (((99 + 99)/9) + 9)) := (9 + 9) × (99/9 + 9 × (9 + 9)) Ï 3105 := (1 + 1 + 1) × (11 + (1 + 1)11−1 ) Ï 3110 := (1 + 1) × (1 + (111 × (1 + (1 + 1 + 11)))) Ï 3115 := ((1 + 111)/(1 + 1))1+1 − 11 − 11 + 1 := (2/2 + 2) × ((222/2 + 22)/2) := 2 + (222 × (22+2 − 2)) := 2/2 + (((2 × (22 + 2 + 2 + 2))2 ) − 22) := 3 × ((3 × 333 + 33) + 3) := 3 + (((333 × (33 + 3/3)) − 3)/3) := 33 + (((((3 × (3 + 3)) + 3)3 ) + 3)/3) := 4/4 + (((4/4 + 4)4+4/4 ) − 4 × 4) := 44 + ((44 × ((4 + 4) + 4)) − 4/4) := 5 + (5 − 5 × 5) := 55 − (5 + 5 + 5) := 55 − 5 − 5 := 6 × 6 × 66 + ((6 × 6/(6 + 6))6 ) := 6 + ((66 × (66/6 + 6 × 6)) + ((6 + 6)/6)) := (6 − 66)/6 + ((6 − 6/6)6−6/6 ) := 7 + (7 × 7 × (7 × 7 + 7 + 7) + (77/7)) := (7 + 7)/7 + (777 × (77/7 − 7)) := 7 + (777 × (77/7 − 7)) := 8 × 88 + ((8 − 8/8)8×8/(8+8) ) := 888 + (((8 + 8)/8) × 8888/8) := (8/8 + 88) × ((88/8 + 8 + 8) + 8) := 9 + ((((9 + 9) × (9 × (9 + 9) + 9)) + 9) + 9) := 9 + (((99999/9) − 9 × 9 × 99) + 9) := 9/9 + ((9 + 9) × (99/9 + 9 × (9 + 9))) 4 := (4/4 + 4) × ((4/4 + 4) − 4) 5 Ï 3106 := 1 + ((1 + 1 + 1) × (11 + (1 + 1)11−1 )) Ï 3111 := 1 + ((1 + 1) × (1 + (111 × (1 + (1 + 1 + 11))))) Ï 3116 := 11 + ((1 + 1 + 1) × (11 + (1 + 1)11−1 )) := (222 × (22+2 − 2)) − 2 := 2 + ((222 × (22+2 − 2)) + 2/2) := 2 + (((2 × (22 + 2 + 2 + 2))2 ) − 22) := 3/3 + (3 × ((3 × 333 + 33) + 3)) := 3 + ((33 + 3/3) × 333/3) := 3333 − ((3 + 3)3 + 3/3) := 4/4 + ((4/4 + 4) × ((4/4 + 4)4 − 4)) := 4 + ((444 × ((4 − 4/4) + 4)) − 4/4) := 44 + (44 × ((4 + 4) + 4)) := 5 + ((5/5 − 5 × 5) + 55 ) := 55 + (5/5 − (5 + 5 + 5)) := 55 + (5/5 − 5 − 5) 6 := 6 + (((6 × 6/(6 + 6)) ) + 6 × 6 × 66) := (((6 − 66) + 6)/6) + ((6 − 6/6)6−6/6 ) := 77 × (7 × 7 − 7) − ((7 + 7)/7) := 7 + ((77/7 − 7) × (777 − 7/7)) := (7/7 − 77) × ((7/7 − 7 × 7) + 7) := ((8 − (8 + 8)/8) × ((8 × 8 × 8 − 8/8) + 8)) − 8 := (8/8 + 8 + 8) × ((888/8 + 8 × 8) + 8) := 8 + ((8 − 8/8) × 888/((8 + 8)/8)) := 9 + ((9/9 + 9 + 9) × (9 × (9 + 9) + 9/9)) := 9 × 99 + ((99/9 + 9) × 999/9) := (9/9 + 9 + 9) × (((9 + 9)/9) + 9 × (9 + 9)) := 6 + ((66 × (66/6 + 6 × 6)) − ((6 + 6)/6)) 7 Ï 3107 := ((1 + 1) × (111 × (1 + (1 + 1 + 11)))) − 1 Ï 3112 := (1 + 1) × (1 + (1 + (111 × (1 + (1 + 1 + 11))))) Ï 3117 := 1 + (11 + ((1 + 1 + 1) × (11 + (1 + 1)11−1 ))) := (222 × (22+2 − 2)) − 2/2 := 2 + ((222 × (22+2 − 2)) + 2) := 22/2 + ((222 × (22+2 − 2)) − 2) := ((333 × (33 + 3/3)) − 3)/3 := 3 + (((333 × (33 + 3/3)) + 3)/3) := 3333 − (3 + 3)3 := (444 × ((4 − 4/4) + 4)) − 4/4 := 4 + (444 × ((4 − 4/4) + 4)) := ((4/4 + 4)4+4/4 ) − 4 − 4 := 5 + (((5 + 5)/5 − 5 × 5) + 55 ) := 55 − (55 + 5 + 5)/5 := 55 + ((5 + 5)/5 − 5 − 5) := ((6 − 6/6)6−6/6 ) − 6 − 6 − 6 := ((6 + 6)/6 + 6) × (6 × 66 − (6/6 + 6)) := ((6 − 6/6)6−6/6 ) − ((6 + 6)/6 + 6) := (777 × (77/7 − 7)) − 7/7 := (77/7 − 7) × (777 + 7/7) := 7 + ((777 × (77/7 − 7)) + ((7 + 7)/7)) (8+8)/8 := 88/8 + ((8 + 8 + 8) × (8 × (8 + 8) + 8/8)) := ((8 × 8 − 8) )−8−8−8 := 9 + ((((9 + 9) × (9 × (9 + 9) + 9)) + (99/9)) + 9) := 9 + ((99/9 + 9 + 9) × ((99 − 9/9) + 9)) 217 := ((8 × 8 − 8)(8+8)/8 ) − (88/8 + 8) := 9 + (999/9 × ((9/9 + 9 + 9) + 9)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3118 := (1 + 1) × (((1 + 1 + 11) × (111+1 − 1)) − 1) Ï 3123 := 1 + (1 + 1 + 1 + 11) × (1 + (1 + 1) × 111) 2/2+2+2 := 2222 + (2 × (2 × (222 + 2))) := ((2/2 + 2 + 2) := 3/3 + (3333 − (3 + 3)3 ) := 3 × (3 × (333 + 3) + 33) := (((4 + 4) + 4) × (44 + 4)) − (4 + 4)/4 5 := ((6 − 6/6) 7−(7+7)/7 := ((7 − ((7 + 7)/7)) := (8 − 88)/8 + (((8 × 8 − 8) := 4 + ((((4 + 4) + 4) × (4 + 4)) − 4/4) 6−6/6 := ((6 − 6/6) ) − 8) Ï 3119 := 11 + ((1 + 1) × (111 × (1 + (1 + 1 + 11)))) − 2)) := 33 + (((((3 × (3 + 3)) + 3)3 ) − 3)/3) 4 := (((4 + 4) + 4) × (4 + 4)) − 4/4 := 4 + ((((4 + 4) + 4) × (44 + 4)) + 4) := 5 + (55 − ((5 + 5)/5)) ) − (6 + 6)/6 := 77 × (7 × 7 − 7) − 777/7 )−7 (8+8)/8 := (99 × (9 × 9 − 9 − 9) − 9/9)/((9 + 9)/9) := 22/2 + (222 × (2 := 3 + ((3 − 3/3 + 3)3−3/3+3 ) 4 := 5 − (5 + 5)/5 ) − 6/6 − 6 2+2 := 2 × (222/2 − 222 ) 5 := 5 − ((5 + 5)/5 + 5) 6−6/6 )−2 Ï 3128 := (1 + 1) × ((1 + 1)11 − ((11 + 11)1+1 )) := 8 + ((8/8 + 88) × ((88/8 + 8 + 8) + 8)) := 9 + ((9 + 9) × (99/9 + 9 × (9 + 9))) Ï 3124 := (1 + 1) × (11 × ((1 + 11)1+1 − (1 + 1))) 2 := 22 × (((2 × (2 + 2 + 2)) ) − 2) 3 := (6 × 6/(6 + 6)) + ((6 − 6/6)6−6/6 ) := (7/7 + 7) × (7 × (7 × 7 + 7) − 7/7) := ((8 × 8 − 8)(8+8)/8 ) − 8 := 9 × 9 + ((((9 + 9)/9)99/9 ) + 999) Ï 3129 := 1 + ((1 + 1) × ((1 + 1)11 − ((11 + 11)1+1 ))) := 2 + (((2/2 + 2 + 2)2/2+2+2 ) + 2) := 3 + ((((((3 × (3 + 3)) + 3) ) + 3)/3) + 33) := 33 + (3 × (3 × 333 + 33)) := 4 + (((4 + 4) + 4) × (44 + 4)) := 4 + ((4/4 + 4)4+4/4 ) 5 := 55 − (5/5 + 5) := 5 − 5/5 := 5 + (55 − 5/5) := ((6 − 6/6)6−6/6 ) − 6 := ((6 − 6/6)6−6/6 ) − 6/6 := 6 + (((6 − 6/6)6−6/6 ) − ((6 + 6)/6)) := 7 + ((77/7 − 7) × (777 + 7/7)) := ((7 − 777)/7) + 77 × (7 × 7 − 7) := ((7 × 7 + 7)(7+7)/7 ) − 7 := ((8 × 8 − 8) (8+8)/8 ) − (8/8 + 8 + 8) := (99 × (9 × 9 − 9 − 9) + 9/9)/((9 + 9)/9) := (88/((8 + 8)/8)) × ((8 × 8 − 8/8) + 8) := 9 + (((9 + 9) × (99/9 + 9 × (9 + 9))) + 9/9) Ï 3120 := (1 + 1) × ((1 + 1 + 11) × (111+1 − 1)) Ï 3125 := (1 + (1 + 1 + 1 + 1))1+1+1+1+1 := (22 + 2) × ((2 × 22+2+2 ) + 2) := (2/2 + 2 + 2)2/2+2+2 3 := (3 − 3/3 + 3) := 3 + (3333 − (3 + 3) ) 4 := ((4 + 4) + 4) × (4 + 4) := (4/4 + 4) 5 := 8/8 + (((8 × 8 − 8)(8+8)/8 ) − 8) := ((9 + 9) × (99 + 9 × 9)) − 999/9 Ï 3130 := (1 + 1) × (11 + (111 × (1 + (1 + 1 + 11)))) := 2 + (2 × (222/2 − 222 )) 3−3/3+3 := 33+3 + ((3/3 + 3 + 3)3/3+3 ) 4+4/4 := 4 + (((4/4 + 4)4+4/4 ) + 4/4) 5 := 5 + 55 := 5 − 5 := 5 := ((6 + 6)/6 + 6) × (6 × 66 − 6) := (6 − 6/6)6−6/6 := 6 + (((6 − 6/6)6−6/6 ) − 6/6) := (7/7 + 7) × (7 × (7 × 7 + 7) − ((7 + 7)/7)) := (7 − ((7 + 7)/7))7−(7+7)/7 := (8 − (8 + 8)/8) × (8 × 8 × 8 + 8) := 7/7 + (((7 × 7 + 7)(7+7)/7 ) − 7) := ((8 × 8 − 8)(8+8)/8 ) − 88/8 := (8 + 8)/8 + (((8 × 8 − 8)(8+8)/8 ) − 8) := (((9 − 9/9) + 9) + 9) × (999/9 + 9) Ï 3121 := 1 + ((1 + 1) × ((1 + 1 + 11) × (111+1 − 1))) := ((2/2 + 2 + 2)2/2+2+2 ) − 2 − 2 3 := 33 + (((((3 × (3 + 3)) + 3) ) + 3)/3) := ((4/4 + 4) 4+4/4 )−4 5 := 5 + 5/5 − 5 := 6/6 + (((6 + 6)/6 + 6) × (6 × 66 − 6)) := ((7 × 7 + 7)(7+7)/7 ) − (7/7 + 7 + 7) := 8/8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 + 8)) := ((99 + 9) × (99/9 + 9 + 9)) − 99/9 := ((9 × 9 + 9)/(9 + 9)) (9×9+9)/(9+9) Ï 3126 := 1 + ((1 + (1 + 1 + 1 + 1))1+1+1+1+1 ) := (2 − 2) × (222 + 2/2) := ((3 − 3/3 + 3)3−3/3+3 ) − 3 := 4/4 + (((4/4 + 4) 4+4/4 ) − 4) 5 := 5 + ((5 + 5)/5 − 5) 6−6/6 := ((6 − 6/6) := ((7 × 7 + 7) ) − 6 × 6/(6 + 6) (7+7)/7 ) − (7 + 7) := (8 − 8/8) × (8 × (8 × 8 − 8) − ((8 + 8)/8)) := 9 + (((9 + 9) × (99/9 + 9 × (9 + 9))) − 9/9) Ï 3131 := 1 + ((1 + 1) × (11 + (111 × (1 + (1 + 1 + 11))))) := 2 + (22 × (((2 × (2 + 2 + 2))2 ) − 2)) := ((22/2 + 2) × (222 − 2)/2) − 2 := 3 + (3 × (3 × (333 + 3) + 33)) := 3 + (((3 − 3/3 + 3)3−3/3+3 ) + 3) := 4/4 + ((4/4 + 4)4+4/4 ) := 44/4 + (((4 + 4) + 4) × (44 + 4)) := 55 + 5/5 := 5 + (55 + 5/5) := 6/6 + ((6 − 6/6)6−6/6 ) := 6 + ((6 − 6/6)6−6/6 ) := 7/7 + ((7 − ((7 + 7)/7))7−(7+7)/7 ) := (7 + 7)/7 + (((7 × 7 + 7)(7+7)/7 ) − 7) := (8 − 88)/8 + ((8 × 8 − 8)(8+8)/8 ) := 88/8 + ((8 − (8 + 8)/8) × (8 × 8 × 8 + 8)) := (9 − ((9 + 9 + 9)/9)) × (((9 + 9)/9)9 + 9) := ((99 + 9) × (99/9 + 9 + 9)) − 9/9 Ï 3122 := (1 + (1 + 1 + 11)) × (1 + (1 + 1) × 111) 2+2 := (9/9 + 9) × ((9 + 9) × (9 + 9) − (99/9)) Ï 3127 := 1 + (1 + ((1 + (1 + 1 + 1 + 1))1+1+1+1+1 )) := 2 + ((2/2 + 2 + 2) 2/2+2+2 ) := 3 + (((((((3 × (3 + 3)) + 3)3 ) + 3)/3) + 33) + 3) := (4 + 4)/4 + ((4/4 + 4)4+4/4 ) := 55 + (5 + 5)/5 := (6 + 6)/6 + ((6 − 6/6)6−6/6 ) Ï 3132 := (1 + 11) × (((1 + 1) × ((11 × (1 + 11)) − 1)) − 1) := 2 × ((222/2 − 222 ) + 2) := (33 + 3) × (3 × 33 + 3 + 3) := (4 − 4/4) × (4 × (44 + 4) + 4) := 5 + ((5 + 5)/5 + 55 ) := 6 × (666 − (6 + 6) × (6 + 6)) := 7 + ((7 − ((7 + 7)/7))7−(7+7)/7 ) := ((7 × 7 + 7) (7+7)/7 ) − ((7 + 7)/7 + 7) := (8/8 + 8) × ((8 × 88 − 8)/((8 + 8)/8)) := ((8 × 8 − 8) (8+8)/8 ) − (8/8 + 8) := (99 + 9) × (99/9 + 9 + 9) := (((999 + 9)/(9 + 9)) (9+9)/9 218 )−9 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3133 := (1 + 1 + 11) × (((1 + 1) × 111+1 ) − 1) 2 := (22/2 + 2) × (22 − 2)/2 := 3/3 + ((33 + 3) × (3 × 3 + 3 + 3)) := 4 + (((4/4 + 4) ) + 4) 5 := 5 + ((5 − ((5 + 5)/5)) + 5) 6−6/6 := 6 + (((6 − 6/6) := ((7 × 7 + 7) (7+7)/7 := 8 + (((8 × 8 − 8) ) − (7 + 7 + 7)/7 (8+8)/8 := (((222 × (22/2 + 2)) − 2)/2) − 2 := 3 + (33 × (3 × 33 − (3/3 + 3))) := 3 + (((33/3 + 3)3 ) + (33 × (3 × 3 + 3))) := (4 + 4)/4 + (4 × (4 × ((4 × (44 + 4)) + 4))) := ((4 − 4/4) + 4) × ((444 + 4/4) + 4) := 5 + (55 + 5 + 5)/5 := 5 + ((55 + 5 + 5)/5 + 55 ) := 6 + (6 × (666 − (6 + 6) × (6 + 6))) := 6 + ((((6 − 6/6)6−6/6 ) + 6) + 6) := (7 + 7)/7 + ((7 × 7 + 7)(7+7)/7 ) := 7 + ((7 × 7 + 7)(7+7)/7 ) := (8 + 8)/8 + ((8 × 8 − 8)(8+8)/8 ) := 8 + (((8 × 8 − 8)(8+8)/8 ) − 8/8) := 9 + (((9 + 9) × (99 + 9 × 9)) − 999/9) := (9 + 9)/9 + (((9 + 9) × (99 + 9 × 9)) − 99) 5 ) + ((6 + 6)/6)) ) − (88/8)) := 9/9 + ((99 + 9) × (99/9 + 9 + 9)) Ï 3134 := ((1 + 111)/(1 + 1))1+1 − 1 − 1 Ï 3139 := ((1 + 111)/(1 + 1))1+1 + 1 + 1 + 1 2 Ï 3143 := ((1 + 1) × ((1 + 11) × ((11 × (1 + 11)) − 1))) − 1 := 2 + ((2 × (22 + 2 + 2 + 2)) ) 2 3 4+4/4 Ï 3138 := ((1 + 111)/(1 + 1))1+1 + 1 + 1 Ï 3144 := (1 + 1) × ((1 + 11) × ((11 × (1 + 11)) − 1)) := ((2 × (22 + 2 + 2 + 2)) ) − 2 := 2 + (((2 × (22 + 2 + 2 + 2))2 ) + 2/2) := 2 × (2 × (((22 + 2 + 2 + 2)2 ) + 2)) := 3 × 3 + ((3 − 3/3 + 3)3+3−3/3 ) := 3 + ((33 + 3/3) × ((333 + 3)/3)) := 3 + ((33 × (3 × 33 − 3)) − 33 ) := 4 + ((((4/4 + 4)4/4+4 ) + 4/4) + 4) := 4 + ((44 × ((4 + 4) + 4)) + ((44 − 4)/4)) := 4 + ((4 × (4 × ((4 × (44 + 4)) + 4))) + 4) := 5 + ((5 − 5/5) + 5) := 5 + (((55 − 5/5) + 5) + 5) := 5 × 5 + (55 − (5/5 + 5)) := 6 + (((6 − 6/6)6−6/6 ) + (6 × 6/(6 + 6))) := ((6 × 6 + 6/6) + 6) × (66 + 6/6 + 6) := (6 − ((6 + 6)/6)) × (66 × (6 + 6) − 6) := ((7 × 7 + 7)(7+7)/7 ) − (7 + 7)/7 := 77 + (7 − (7 + 7)/7)7−(7+7)/7 + 7 := ((8 × 8 − 8)(8+8)/8 ) − (8 + 8)/8 := 88/8 + (((8 × 8 − 8)(8+8)/8 ) − 8) := 8 + ((8 × 8 − 8)(8+8)/8 ) := 9 + ((9 × 9 + 9)/(9 + 9))(9×9+9)/(9+9) := 9 + ((9/9 + 9) × ((9 + 9) × (9 + 9) − (99/9))) := (99 + 9)/9 × ((9 × (9 + 9) + 99) + 9/9) 5 Ï 3135 := ((1 + 111)/(1 + 1))1+1 − 1 Ï 3140 := ((1 + 111)/(1 + 1))1+1 + 1 + 1 + 1 + 1 := ((2 × (22 + 2 + 2 + 2))2 ) − 2/2 := 2 + (((2 × (22 + 2 + 2 + 2))2 ) + 2) := 33 × (3 × 33 − (3/3 + 3)) := ((33/3 + 3)3 ) + (33 × (3 × 3 + 3)) := ((44 − 4)/4) + (44 × ((4 + 4) + 4)) := 4 + (4 × (4 × ((4 × (44 + 4)) + 4))) := 5 + (55 + 5) := 5 + (55 + 5 + 5) := 66/6 × (6 × 66 − 666/6) := (6 − 6/6) × (666 − ((6 + 6)/6 + 6 × 6)) := ((7 × 7 + 7)(7+7)/7 ) − 7/7 := 77/7 + (((7 × 7 + 7)(7+7)/7 ) − 7) := ((8 × 8 − 8)(8+8)/8 ) − 8/8 := (8/((8 + 8)/8)) + ((8 × 8 − 8)(8+8)/8 ) := 9 + ((9 − ((9 + 9 + 9)/9)) × (((9 + 9)/9)9 + 9)) := (9/9 + 9) × ((9 + 9) × (9 + 9) − (9/9 + 9)) Ï 3136 := ((1 + 111)/(1 + 1))1+1 := (2 × (22 + 2 + 2 + 2)) Ï 3141 := ((1 + 111)/(1 + 1))1+1 + 1 + 1 + 1 + 1 + 1 2 2 := 2 + ((((2 × (22 + 2 + 2 + 2)) ) + 2/2) + 2) 3 := (3 + 3/3) × ((333 + 3)/3) := (33 × (3 × 33 − 3)) − 33 := 4 × (4 × ((4 × (44 + 4)) + 4)) := 4 × 4 + ((4/4 + 4)4/4+4 ) := 55 + 55/5 := 5 + (55/5 + 55 ) := 66/6 + ((6 − 6/6)6−6/6 ) := 6 × (6 × 66 + 6) + ((6 × 6/(6 + 6))6 ) := (7 × 7 + 7)(7+7)/7 := 7 + (((7 × 7 + 7)(7+7)/7 ) − ((7 + 7)/7)) := 8 + ((((8 × 8 − 8) := ((9 + 9) × (99 + 9 × 9)) − 99 Ï 3137 := ((1 + 111)/(1 + 1)) +1 ) − (88/8)) + 8) Ï 3142 := (1 + 1) × ((11 × (11 × (1 + 1 + 11))) − (1 + 1)) := 2/2 + ((2 × (22 + 2 + 2 + 2)) ) 33/3 := 33 × 33 + (3 − 3/3) := 4 + ((((4/4 + 4) := 3 + (((33 × (3 × 33 − 3)) − 33 ) + 3/3) := (4/4 + 4) × ((4/4 + 4)4 + 4) := 5 × 5 + (55 − 5) := (6 − 6/6) × (666 − (6 × 6 + 6/6)) := 7 + (((7 × 7 + 7)(7+7)/7 ) + ((7 + 7)/7)) := 8 + (((8 × 8 − 8)(8+8)/8 ) + 8/8) := 9 + (((999 + 9)/(9 + 9))(9+9)/9 ) Ï 3146 := (1 + 1) × (11 × (11 × (1 + 1 + 11))) := 22 × ((22/2)2 + 22) := 33/3 × 33/3 × (33 − 3/3) := 66/6 × ((((6 + 6)/6)6 + 6 × 6 × 6) + 6) := 77/7 × (7 × (7 × 7 − 7) − (7/7 + 7)) := 8 + (((8 × 8 − 8)(8+8)/8 ) + ((8 + 8)/8)) := 99 + ((((9 + 9)/9)99/9 ) + 999) Ï 3147 := ((1 + 111)/(1 + 1))1+1 + 11 2 4/4+4 := ((222 × (22/2 + 2)) − 2)/2 := 5 + ((55/5 + 55 ) + 5) := ((999 + 9)/(9 + 9))(9+9)/9 1+1 Ï 3145 := ((1 + 1) × (11 × (11 × (1 + 1 + 11)))) − 1 := 4/4 + ((4/4 + 4) × ((4/4 + 4)4 + 4)) := (8 × 8 − 8)(8+8)/8 (8+8)/8 := 7 + (((7 × 7 + 7)(7+7)/7 ) + 7/7) ) + 4) + 4) := 2 + ((((2 × (22 + 2 + 2 + 2))2 ) + 2) + 2) := (3 × (33 × (33 + 3 + 3) − 3)) − 3 := 3/3 + ((33 × (3 × 33 − 3)) − 33 ) := 44/4 + (4 × (4 × ((4 × (44 + 4)) + 4))) := 4 × 4 + (((4/4 + 4) 5 := ((222 × (22/2 + 2)) + 2)/2 4+4/4 ) + 4/4) := 55 + (55 + 55)/5 := 5 + (55 + 5)/5 := 5 + (((55 + 5)/5) + 55 ) := 6 + (6 × (6 × 66 + 6) + ((6 × 6/(6 + 6))6 )) := 6 + (((6 − 6/6)6−6/6 ) + 6) := 6 + (((6 − 6/6)6−6/6 ) + (66/6)) := 77/7 + ((7 × 7 + 7)(7+7)/7 ) := 7/7 + ((7 × 7 + 7)(7+7)/7 ) := 7 + (((7 × 7 + 7)(7+7)/7 ) − 7/7) := 88/8 + ((8 × 8 − 8)(8+8)/8 ) := 8/8 + ((8 × 8 − 8)(8+8)/8 ) := 8 + (((8 × 8 − 8)(8+8)/8 ) − ((8 + 8)/8)) := ((9 + 9 + 9) × (99 + 9 + 9)) − (99 + 9)/9 := 9/9 + (((999 + 9)/(9 + 9)) (9+9)/9 ) := 9/9 + (((9 + 9) × (99 + 9 × 9)) − 99) 219 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3148 := 1111 + ((1 + 1)11 − 11) Ï 3153 := 1111 + ((1 + 1)11 − ((1 + 1) × (1 + 1 + 1))) Ï 3158 := 1111 + ((1 + 1)11 − 1) := 2 + (22 × ((22/2)2 + 22)) := 2/2 + (2 × ((2 × (22 − 2))2 − (22 + 2))) := 2 + (2 × ((2 × (22 − 2))2 − 22)) := (3 × 33 × (33 + 3 + 3)) − 33/3 := 3 + (3 × (33 × (33 + 3 + 3) − 3)) := (3 × 33 × (33 + 3 + 3)) − 3/3 := 4444 − ((4 + 4)/4 + 4)4 := (4 − 4/4)4 + (44 × ((4 + 4) + 4)) := 44 × (4 + 4) + (4444 − 4)/4 := 5 × 5 + (55 − ((5 + 5)/5)) := 5 + ((55 − ((5 + 5)/5)) + 5 × 5) := 55 + (((5 + 5)/5)5 + 5/5) := 6 + ((((6 − 6/6)6−6/6 ) + (66/6)) + 6) := 666 + (666/6 + 6 × 6 × 66) := (77 + 7)/7 + ((7 × 7 + 7) (7+7)/7 := ((88 + 8)/8) + ((8 × 8 − 8) := 7 + (((7 × 7 + 7) ) (8+8)/8 ) := ((9 + 9 + 9) × (99 + 9 + 9)) − 99/9 Ï 3149 := 1 + (1111 + ((1 + 1)11 − 11)) (7+7)/7 := 8 + ((((8 × 8 − 8) ) + ((77 − 7)/7)) (8+8)/8 ) + 8/8) + 8) := 9 × 9 + ((((9 + 9)/9)9 ) × (9 − ((9 + 9 + 9)/9))) Ï 3154 := 1111 + ((1 + 1)11 − (1 + (1 + 1 + 1 + 1))) := (6 − 66)/6 + (66 × (6 × 6 + 6 + 6)) := 7/7 + (77 × (7 × 7 − (7/7 + 7))) := 8 + ((8 − 8/8) × (8 × (8 × 8 − 8) + ((8 + 8)/8))) := ((9 + 9 + 9) × (99 + 9 + 9)) − 9/9 Ï 3159 := 1111 + (1 + 1)11 := 2 + (((222 × (22/2 + 2)) + 2)/2) := (2 × ((2 × (22 − 2))2 − 22)) − 2 := 222/2 + 2222/2 := (3 × (33 × (33 + 3 + 3) − 3)) − 3/3 := (33 × (3 × 33 − 3)) − (33/3 + 3) := 3 × 33 × (33 + 3 + 3) := 4 + ((4/4 + 4) × ((4/4 + 4)4 + 4)) := 4 + ((4/4 + 4) × (((4/4 + 4)4 + 4/4) + 4)) := 44 × (4 + 4) + 4444/4 := 5 × 5 + (55 − 5/5) := 5 + ((55 − 5/5) + 5 × 5) := 5 + (((55 − 5/5) + 5 × 5) + 5) := (66 + 6/6) × (66/6 + 6 × 6) := (((6 + 6)/6 + 6) × (6 × 66 − 6/6)) − 6 := 6 × 6 + (((6 − 6/6)6−6/6 ) − ((6 + 6)/6)) := 7 + ((((7 × 7 + 7)(7+7)/7 ) − 7/7) + 7) := 7 + (((7 × 7 + 7)(7+7)/7 ) + (77/7)) := (7 + 7)/7 + (77 × (7 × 7 − (7/7 + 7))) := 88 + ((8 × (8 × (8 × 8 − 8 − 8))) − (88/8)) := 8 + ((((8 × 8 − 8)(8+8)/8 ) + ((8 + 8)/8)) + 8) := 88 + ((8 × (8 × (8 × 8 − 8 − 8))) − 8/8) := ((9 + 9 + 9) × (99 + 9 + 9)) − 9/9 − 9 := 9 + ((((999 + 9)/(9 + 9))(9+9)/9 ) + 9) := (9 + 9 + 9) × (99 + 9 + 9) Ï 3150 := 1 + (1 + (1111 + ((1 + 1)11 − 11))) := 2 + ((22 × ((22/2)2 + 22)) + 2) := 3 × (33 × (33 + 3 + 3) − 3) Ï 3155 := 1111 + ((1 + 1)11 − (1 + 1 + 1 + 1)) := (2 × ((2 × (22 − 2))2 − 22)) − 2/2 Ï 3160 := 1 + (1111 + (1 + 1)11 ) := 2 × (((2 × (22 − 2))2 − 22) + 2) := (3 × 33 × 33) − ((333 + 3)/3) := 3/3 + (3 × 33 × (33 + 3 + 3)) := (4/4 + 4) × (((4/4 + 4)4 + 4/4) + 4) := 44 × (4 + 4) + (4444/4 − 4) := 44 + ((44 × ((4 + 4) + 4)) + 44) := 5 × 5 + 55 := 5 + (5 × 5 + 55 ) := 5 + ((5 × 5 + 55 ) + 5) := 6 × 6 + (((6 − 6/6)6−6/6 ) − 6) := ((6 + 6)/6 + 6) × (6 × 66 − 6/6) := 77 × (7 × 7 − 7) − ((7 + 7)/7 + 77) := 777 + (7 × 7 × 7 × 7 − (77/7 + 7)) := 8 + (((8 × 8 − 8)(8+8)/8 ) + (88/8)) := 88 + (8 × (8 × (8 × 8 − 8 − 8))) := (6 − 6 × 6) × (6 − 666/6) := 7 + (((7 × 7 + 7) (7+7)/7 ) + 7) := (8 − 8/8) × (8 × (8 × 8 − 8) + ((8 + 8)/8)) := 9 × ((((9 + 9)/9)9 ) − 9 × (9 + 9)) Ï 3151 := 1 + (1 + (1 + (1111 + ((1 + 1)11 − 11)))) := 2 + ((((222 × (22/2 + 2)) + 2)/2) + 2) := 3/3 + (3 × (33 × (33 + 3 + 3) − 3)) := (4 × ((4 × ((4 × (44 + 4)) + 4)) + 4)) − 4/4 5 := 5 × 5 + (5 + 5/5) := 6/6 + ((6 − 6 × 6) × (6 − 666/6)) := 7 + ((((7 × 7 + 7) (7+7)/7 := 8 + ((((8 × 8 − 8) (8+8)/8 := 9 + (((((9 + 9)/9)99/9 ) + 999) + 99) Ï 3156 := (1 + 11) × (((1 + 1) × (11 × (1 + 11))) − 1) := 2 × ((2 × (22 − 2))2 − 22) := (3 × 33 × (33 + 3 + 3)) − 3 := 4 + (4 × ((4 × ((4 × (44 + 4)) + 4)) + 4)) := 5 + ((5 × 5 + 55 ) + 5/5) := 9/9 + ((9 + 9 + 9) × (99 + 9 + 9)) Ï 3161 := 1 + (1 + (1111 + (1 + 1)11 )) := 2 + ((2222/2) + 222/2 ) := 3 + ((3 × 33 × (33 + 3 + 3)) − 3/3) := 4 + (((4/4 + 4)4+4/4 ) + 4 × (4 + 4)) := 5 × 5 + (55/5 + 55 ) := (66 × (6 × 6 + 6 + 6)) − 6 − 6 := 6 × 6 + ((6 − 6/6)6−6/6 ) ) + 7/7) + 7) := 77 × (7 × 7 − 7) − 7/7 − 77 := ((7 − 7/7) × (7 × 77 − (77/7))) − 7 ) − 8/8) + 8) := (((88 × (8 × 8 + 8)) − 8)/((8 + 8)/8)) − 8 := 8/8 + ((8 × (8 × (8 × 8 − 8 − 8))) + 88) := ((9 + 9 + 9)/9) × ((9 × (99 + 9 + 9)) − 9/9) := (9 + 9)/9 + ((9 + 9 + 9) × (99 + 9 + 9)) := 9/9 + (9 × ((((9 + 9)/9)9 ) − 9 × (9 + 9))) Ï 3152 := (1 + 1) × (1 + (1 + (1 + (11 × (11 × (1 + 1 + 11)))))) Ï 3157 := 11 × (((1 + 1) × (1 + 11)1+1 ) − 1) Ï 3162 := 1 + (1 + (1 + (1111 + (1 + 1)11 ))) := 2 × ((2 × (22 − 2))2 − (22 + 2)) := 22/2 × ((((22 + 2)2 ) − 2)/2) := (2 + 2 + 2) × ((22 + 2/2)2 − 2) := 33 + ((3 − 3/3 + 3)3−3/3+3 ) := (33 × (3 × 33 − 3)) − 33/3 := 3 + (3 × 33 × (33 + 3 + 3)) := 4 × ((4 × ((4 × (44 + 4)) + 4)) + 4) := 4 × (4 + 4) + ((4/4 + 4)4+4/4 ) := 4 + ((4444 − 4)/4 + 44 × (4 + 4)) := 5 × 5 + ((5 + 5)/5 + 55 ) := 55 + ((5 + 5)/5)5 := 5 + (((5 + 5)/5)5 + 55 ) := ((6 + 6)/6 + 6) × (6 × 66 − ((6 + 6)/6)) := (66 × (6 × 6 + 6 + 6)) − 66/6 := (66 × (6 × 6 + 6 + 6)) − 6 := (7/7 + 7) × (7 × (7 × 7 + 7) + ((7 + 7)/7)) := 77 × (7 × 7 − (7/7 + 7)) := (7 − 7/7) × (7 × 77 − (77 + 7)/7) := 88/8 × ((888/8 + 88) + 88) := 88 + ((8 × (8 × (8 × 8 − 8 − 8))) + ((8 + 8)/8)) := ((9 + 9 + 9) × (99 + 9 + 9)) − (9 + 9)/9 := ((9 + 9 + 9)/9) + ((9 + 9 + 9) × (99 + 9 + 9)) := 8 + (((8 × 8 − 8) (8+8)/8 ) + 8) 9 := (9 + 9)/9 + (9 × ((((9 + 9)/9) ) − 9 × (9 + 9))) 220 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3163 := 1 + (1 + (1 + (1 + (1111 + (1 + 1)11 )))) Ï 3168 := (1 + 1) × (11 × (1 + 11)1+1 ) Ï 3173 := 1 + ((1 + 1) × (1 + (1 + (11 × (1 + 11)1+1 )))) := 2 + (((2222/2) + 222/2 ) + 2) := 22 × ((2 × (2 + 2 + 2))2 ) := ((2 + 2 + 2) × ((22 + 2/2)2 )) − 2/2 := 3 + ((3 × 33 × (33 + 3 + 3)) + 3/3) := 33 × (3 × 33 − 3) := 3 + (((33 × (3 × 33 − 3)) − 3/3) + 3) := 4 + (4444/4 + 44 × (4 + 4)) := 44 × ((4 × 4 × 4 + 4) + 4) := 4 + (((4/4 + 4)4+4/4 ) + 44) 5 := 5 + ((((5 + 5)/5)5 + 55 ) + 5/5) := 55 + (5 − ((55 + 5)/5)) := 55 + (55 − ((5 + 5)/5 + 5)) := 6/6 + ((66 × (6 × 6 + 6 + 6)) − 6) := 66 × (6 × 6 + 6 + 6) := 6 + ((66 × (6 × 6 + 6 + 6)) − 6/6) := 7 + (77 × (7 × 7 − 7) − (7/7 + 77)) := (7 − 7/7) × (7 × 77 − (77/7)) := 77 + (((7 + 7)/7 + 7) × (7 × 7 × 7 + 7/7)) := 8 + ((((8 × 8 − 8)(8+8)/8 ) + (88/8)) + 8) := 8 × ((88 × (8 × 8 + 8))/(8 + 8)) := 8/8 + (((88 × (8 × 8 + 8)) + 8)/((8 + 8)/8)) := 9 + (((((999 + 9)/(9 + 9))(9+9)/9 ) + 9) + 9) := 9 + ((9 + 9 + 9) × (99 + 9 + 9)) := (9 × (9 − 9 × 99)) + (99999/9) Ï 3164 := (1 + 1) × ((11 × (1 + 11)1+1 ) − (1 + 1)) := 2 × ((2 × (22 × (2 + 2 + 2)2 )) − 2) := (33 × (3 × 33 − 3)) − (3/3 + 3) := 44 + (((4 + 4) + 4) × (44 + 4)) := 55 + (55 − (55/5 + 5)) := (6 + 6)/6 + ((66 × (6 × 6 + 6 + 6)) − 6) := 7 + (77 × (7 × 7 − (7/7 + 7))) := ((88 × (8 × 8 + 8)) − 8)/((8 + 8)/8) := ((9/9 + 9 + 9) + 9) × ((999 + 9 + 9)/9) Ï 3165 := ((1 + 1) × ((11 × (1 + 11)1+1 ) − 1)) − 1 := (22 × ((2 × (2 + 2 + 2))2 )) − 2/2 − 2 := (33 × (3 × 33 − 3)) − 3 Ï 3169 := 1 + ((1 + 1) × (11 × (1 + 11)1+1 )) Ï 3174 := (1 + 1) × (1 + (1 + (1 + (11 × (1 + 11)1+1 )))) := 2/2 + (22 × ((2 × (2 + 2 + 2))2 )) := (2 + 2 + 2) × ((22 + 2/2)2 ) := 3/3 + (33 × (3 × 33 − 3)) := 3 + ((33 × (3 × 33 − 3)) + 3) := 44 + ((4/4 + 4) 4+4/4 := ((44 + 4)/4 + 4) × ((4 + 4)/4 + 44) ) := 55 + (55 − (55/5)) := 55 + (55 − (5/5 + 5)) := 6/6 + (66 × (6 × 6 + 6 + 6)) := 6 + (66 × (6 × 6 + 6 + 6)) := 7777/7 + 7 × 7 × (7 × 7 − 7) := 7 × 7 + ((7 − ((7 + 7)/7))7−(7+7)/7 ) := 8/8 + (8 × ((88 × (8 × 8 + 8))/(8 + 8))) := (8 − (8 + 8)/8) × (((8 × 8 × 8 + 8/8) + 8) + 8) := 9 + (((9 + 9 + 9) × (99 + 9 + 9)) + 9/9) := 9 + (((99 × 99 − 9)/((9 + 9 + 9)/9)) − 99) Ï 3170 := 11 + (1111 + (1 + 1)11 ) Ï 3175 := 1 + ((1 + 1) × (1 + (1 + (1 + (11 × (1 + 11)1+1 ))))) := 2 + (22 × ((2 × (2 + 2 + 2))2 )) := 2/2 + ((2 + 2 + 2) × ((22 + 2/2)2 )) := 3 + ((33 × (3 × 33 − 3)) − 3/3) := 3 + (((33 × (3 × 33 − 3)) + 3/3) + 3) 4+4/4 := 44 + (((4/4 + 4)4+4/4 ) − 4) := 44 + (((4/4 + 4) := 5 + (((5 × 5 + 55 ) + 5) + 5) := 55 + (5 − 5 − 5) := 55 + (55 − 5) := (66 × (6 × 6 + 6 + 6)) − 6 × 6/(6 + 6) := 7 + ((77 × (7 × 7 − (7/7 + 7))) + 7/7) := 8/8 + (((88 × (8 × 8 + 8)) − 8)/((8 + 8)/8)) := ((99 × 99 − 9)/((9 + 9 + 9)/9)) − 99 Ï 3166 := (1 + 1) × ((11 × (1 + 11)1+1 ) − 1) ) + 4/4) 5 := 4 + (((44 × ((4 × 4 × 4 + 4) + 4)) − 4/4) + 4) := (6 + 6)/6 + (66 × (6 × 6 + 6 + 6)) := 6 + ((66 × (6 × 6 + 6 + 6)) + 6/6) := 777 + (7 × 7 × 7 × 7 − (7/7 + 7)) := 7 + ((7 − 7/7) × (7 × 77 − (77/7))) := (8 + 8)/8 + (8 × ((88 × (8 × 8 + 8))/(8 + 8))) := (8/8 + 8 + 8 + 8) × (8 × (8 + 8) − 8/8) := 99/9 + ((9 + 9 + 9) × (99 + 9 + 9)) := 99 + (((9 + 9) × (9 × (9 + 9) + 9)) − ((9 + 9)/9)) Ï 3171 := 1 + (11 + (1111 + (1 + 1)11 )) Ï 3176 := 11 + (((1 + 1) × ((11 × (1 + 11)1+1 ) − 1)) − 1) := (22 × ((2 × (2 + 2 + 2))2 )) − 2 := 2 + ((22 × ((2 × (2 + 2 + 2))2 )) + 2/2) := 2 + ((2 + 2 + 2) × ((22 + 2/2)2 )) := 3/3 + ((33 × (3 × 33 − 3)) − 3) := 3 + (33 × (3 × 33 − 3)) := 3 × 3 + ((33 × (3 × 33 − 3)) − 3/3) := (44 × ((4 × 4 × 4 + 4) + 4)) − (4 + 4)/4 := 4 + ((44 × ((4 × 4 × 4 + 4) + 4)) − 4/4) := 5 + ((55/5 + 55 ) + 5 × 5) := 55 + ((5/5 − 5 − 5) + 5 ) := 55 + ((5/5 − 5) + 55 ) := (66 × (6 × 6 + 6 + 6)) − (6 + 6)/6 := (6 × 6/(6 + 6)) + (66 × (6 × 6 + 6 + 6)) := ((6 + 6)/6 + 6) × (6 × 66 + 6/6) := 7 + ((77 × (7 × 7 − (7/7 + 7))) + ((7 + 7)/7)) := 777 + (7 × 7 × 7 × 7 − 7) := 777 + (7 × 7 × 7 × 7 − ((7 + 7)/7)) := 88 + ((8 − (8 + 8)/8) × (8 × 8 × 8 + 8/8)) := 88 + ((8 × (8 × (8 × 8 − 8 − 8))) + (88/8)) := 8 + (8 × ((88 × (8 × 8 + 8))/(8 + 8))) := 99 + ((((9 + 9)/9)9 ) × (9 − ((9 + 9 + 9)/9))) := 99 + (((9 + 9) × (9 × (9 + 9) + 9)) − 9/9) := 9 + (((9 + 9 + 9) × (99 + 9 + 9)) − ((9 + 9)/9)) Ï 3167 := ((1 + 1) × (11 × (1 + 11)1+1 )) − 1 5 Ï 3172 := (1 + 1) × (1 + (1 + (11 × (1 + 11)1+1 ))) := 4 + ((44 × ((4 × 4 × 4 + 4) + 4)) + 4) Ï 3177 := 11 + ((1 + 1) × ((11 × (1 + 11)1+1 ) − 1)) := (22 × ((2 × (2 + 2 + 2))2 )) − 2/2 := 2 + ((22 × ((2 × (2 + 2 + 2))2 )) + 2) := (2/2 + 2) × (((2 × 22 + 2)2 + 2)/2) := (33 × (3 × 33 − 3)) − 3/3 := 3 + ((33 × (3 × 33 − 3)) + 3/3) := 3 × ((33 × (33 − 3/3)) + 3) := (44 × ((4 × 4 × 4 + 4) + 4)) − 4/4 := 4 + (44 × ((4 × 4 × 4 + 4) + 4)) := 4 + ((((4/4 + 4)4+4/4 ) + 44) + 4) := 5 + ((((5 + 5)/5)5 + 55 ) + 5) := 5 + ((5 + 5)/5)5 + 55 + 5 + 5 := 55 + (((5 + 5)/5 − 5) + 55 ) := (66 × (6 × 6 + 6 + 6)) − 6/6 := 6 + ((66 × (6 × 6 + 6 + 6)) − ((6 + 6)/6)) := 6 + ((66 × (6 × 6 + 6 + 6)) + (6 × 6/(6 + 6))) := 777 + (7 × 7 × 7 × 7 − (77/7)) := 7/7 + ((7 × 7 × 7 × 7 − 7) + 777) := 777 + (7 × 7 × 7 × 7 − 7/7) := (8 × ((88 × (8 × 8 + 8))/(8 + 8))) − 8/8 := ((88 × (8 × 8 + 8)) + 8)/((8 + 8)/8) := 8 + ((8 × ((88 × (8 × 8 + 8))/(8 + 8))) + 8/8) := 9 + (((9 + 9 + 9) × (99 + 9 + 9)) − 9/9) := 9 × (9 + 9) × (9 + 9) + (((9 + 9)/9)9−9/9 ) := 99 + ((9 + 9) × (9 × (9 + 9) + 9)) 221 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3178 := (11 × (1 + ((1 + 1) × (1 + 11)1+1 ))) − 1 Ï 3183 := 111 + ((1 + 1 + 1) × (1 + 1)11−1 ) Ï 3188 := (1 + 1) × ((11 × (1 + (1 + 11)1+1 )) − 1) := (2 × (2 × (22 − 2))2 ) − 22 := (2 × (2 × (2 × ((22 − 2)2 − 2)))) − 2/2 := 2 × ((2 × (2 × ((22 − 2)2 − 2))) + 2) := 3 × 3 + ((33 × (3 × 33 − 3)) + 3/3) := (3 × (33+3 + 333)) − 3 := 3 + ((3 × (33+3 + 333)) − 3/3) := 4 + (((4 + 4)/4 + 4) × ((4 + 4)/4 + 44)) := 444/4 + (44 × ((4 + 4) + 4)) := 4 + (4 × ((4 + 4) × 44 + 444)) := 55 + (55 − ((5 + 5)/5)) := 5 + ((55 − ((5 + 5)/5)) + 55) := 55 + (55 /5 + 5)/(5 + 5) := ((66 − 6)/6) + (66 × (6 × 6 + 6 + 6)) := ((6 + 6)/6)6 + (((6 − 6/6)6−6/6 ) − 6) := 6 + ((((6 + 6)/6 + 6) × (6 × 66 + 6/6)) + 6) := 777 + 7 × 7 × 7 × 7 := 77 × (7 × 7 − 7) − ((7 + 7)/7 + 7 × 7) := 7 + (((7 − 7/7) × (7 × 77 − 7)) − (77/7)) := (8 − 8/8) × ((8 × (8 × 8 − 8) − ((8 + 8)/8)) + 8) := 888/8 + (8 × (8 × (8 × 8 − 8 − 8))) := 8 + ((((88 × (8 × 8 + 8)) + 8)/((8 + 8)/8)) + 8) := 9/9 + (((9 + 9) × (9 × (9 + 9) + 9)) + 99) := ((99 × 99 − 9)/((9 + 9 + 9)/9)) − 9 × 9 := 9 + ((99/9) × (((9 − 9/9) + 9)(9+9)/9 )) Ï 3184 := 1 + (111 + ((1 + 1 + 1) × (1 + 1)11−1 )) Ï 3189 := ((1 + 1) × (11 × (1 + (1 + 11)1+1 ))) − 1 4 Ï 3179 := 11 × (1 + ((1 + 1) × (1 + 11)1+1 )) := 22/2 × ((22+2 + 2/2)2 ) := 2 × (2 × (2 × ((22 − 2)2 − 2))) := (2 × (2 × (22 − 2))2 ) − 22/2 := 33/3 + (33 × (3 × 33 − 3)) := 3/3 + ((3 × (33+3 + 333)) − 3) := 3 + (3 × (33+3 + 333)) := 44/4 + (44 × ((4 × 4 × 4 + 4) + 4)) := 4 × ((4 + 4) × 44 + 444) := 4 × 4 × 4 + ((4/4 + 4)4/4+4 ) := 55 + (55 − 5/5) := 5 + ((55 − 5/5) + 55 ) := 5 + (((55 − 5/5) + 55 ) + 5) := 66/6 + (66 × (6 × 6 + 6 + 6)) := ((6 + 6)/6 + 6) × (((6 + 6)/6) + 6 × 66) := ((6 + 6)/6)6 + ((6 − 6/6)6−6/6 ) := 7/7 + (7 × 7 × 7 × 7 + 777) := 77 × (7 × 7 − 7) − (7/7 + 7 × 7) := 77/7 + (7 × 7 × 7 × 7 + 777) := (8 + 8) × (888/8 + 88) := ((8 + 8) × (8 × (8 + 8 + 8) + 8)) − 88/8 := 999 + (9 × 9 × (9 + 9 + 9) − ((9 + 9)/9)) := 999/9 + ((9 + 9) × (9 × (9 + 9) + 9)) := 88/8 × ((8/8 + 8 + 8)(8+8)/8 ) := 99/9 × (((9 − 9/9) + 9) (9+9)/9 ) Ï 3180 := 1 + (11 × (1 + ((1 + 1) × (1 + 11)1+1 ))) Ï 3185 := (1 + 1 + 11) × (1 + ((1 + 1) × (1 + 111+1 ))) Ï 3190 := (1 + 1) × (11 × (1 + (1 + 11)1+1 )) := 2 + ((2 × (2 × (22 − 2))2 ) − 22) := 2/2 + (2 × (2 × (2 × ((22 − 2)2 − 2)))) := 2 × 222 + 2222 := 3 + ((33 × (3 × 33 − 3)) + 3 × 3) := (3 × (33+3 + 333)) − 3/3 := 3 + ((3 × (33+3 + 333)) + 3/3) := (44/4 + 4) × (44 − 44) := (44 + 4)/4 × ((44 + 4/4) + 4) := (44 + 4)/4 + ((4/4 + 4)4+4/4 ) := 55 + 55 := 5 + (55 + 55 ) := 5 + (55 + 55 + 5) := 6 + ((66 × (6 × 6 + 6 + 6)) + 6) := 66 + (((6 − 6/6)6−6/6 ) − 6) := 66 + (((6 − 6/6)6−6/6 ) − 6/6) := (7 + 7)/7 + (7 × 7 × 7 × 7 + 777) := 7 × (7 × 77 − (77 + 7)) := ((7 − 7/7) × (7 × 77 − 7)) − (7 + 7)/7 := 8 + (((88 × (8 × 8 + 8)) + 8)/((8 + 8)/8)) := 8/8 + ((8 + 8) × (888/8 + 88)) := (8 − 88)/8 + ((8 + 8) × (8 × (8 + 8 + 8) + 8)) := 999/9 + (((9 + 9) × (9 × (9 + 9) + 9)) − 9) Ï 3181 := 1 + (1 + (11 × (1 + ((1 + 1) × (1 + 11)1+1 )))) 9 := (99/9 + 9 + 9) × (99/9 + 99) := (((9 + 9)/9) ) + 99 × (9 + 9 + 9) Ï 3186 := (1 + 1) × ((11 × (1 + (1 + 11)1+1 )) − (1 + 1)) Ï 3191 := 1 + ((1 + 1) × (11 × (1 + (1 + 11)1+1 ))) := 2 + (22/2 × ((22+2 + 2/2)2 )) := 2 + (2 × (2 × (2 × ((22 − 2)2 − 2)))) := 2 + ((2 × (2 × (22 − 2))2 ) − 22/2) := 3 + (((33 × (3 × 33 − 3)) + 3 × 3) + 3/3) := 3 × (33+3 + 333) := 3 + (((3 × (33+3 + 333)) − 3/3) + 3) := 4/4 + ((44/4 + 4) × (44 − 44)) := ((4 + 4)/4 + 4 × 4) × (4 × 44 + 4/4) := (4 + 4) × (44 + 4) + 4444/4 := 55 + (55 + 5/5) := 5 + ((55 + 55 ) + 5/5) := 55 + (55/5 + 55 ) := 6 + (((66 × (6 × 6 + 6 + 6)) + 6/6) + 6) := 6 + (((66 × (6 × 6 + 6 + 6)) + 6) + 6) := 66 + ((6 − 6/6)6−6/6 ) := ((7 − 7/7) × (7 × 77 − 7)) − 77/7 := 7/7 + (7 × (7 × 77 − (77 + 7))) := ((7 − 7/7) × (7 × 77 − 7)) − 7/7 := ((8 + 8) × (8 × (8 + 8 + 8) + 8)) − (88/8 + 8) := (8 + 8)/8 + ((8 + 8) × (888/8 + 88)) := ((8 + 8) × (8 × (8 + 8 + 8) + 8)) − (8/8 + 8) := ((9 × 9 × 9 × 9 − 9/9)/((9 + 9)/9)) − 99 := 999 + 9 × 9 × (9 + 9 + 9) := ((9 − 9/9) × ((99/9 + 9)(9+9)/9 )) − 9 Ï 3182 := 111 + (((1 + 1 + 1) × (1 + 1)11−1 ) − 1) Ï 3187 := ((1 + 1) × ((11 × (1 + (1 + 11)1+1 )) − 1)) − 1 Ï 3192 := (1 + 1) × (1 + (11 × (1 + (1 + 11)1+1 ))) := (2 × ((2 × (22 − 2))2 + 2)) − 22 := (2 × (2 × (22 − 2))2 ) − (22/2 + 2) := 2 × (2 × (2 × (22 − 2)2 − 2)) := 3 + ((33 × (3 × 33 − 3)) + 33/3) := 3/3 + (3 × (33+3 + 333)) := 3 + ((3 × (33+3 + 333)) + 3) := (44 − 4/4) × (((44 − 4) + 44)/4) := 4 + ((44 × ((4 + 4) + 4)) + 444/4) := (4 + 4) × (4 × 44 − (4/4 + 4)4 ) 5 5 := 55 + ((5 + 5)/5 + 5 ) := 5 + (((5 + 5)/5 + 55) + 5 ) := 55 + (((55 + 5)/5) + 55 ) := 6 + (((6 + 6)/6 + 6) × (6 × 66 + 6/6)) := 6 + ((((66 × (6 × 6 + 6 + 6)) + 6/6) + 6) + 6) := (6/6 + 6) × ((6 × 66 − 6) + 66) := 7 + (((7 − 7/7) × (7 × 77 − (77/7))) + 7) := (7 + 7)/7 + (7 × (7 × 77 − (77 + 7))) := (7 − 7/7) × (7 × 77 − 7) (8+8)/8 := ((8 + 8)/8) × ((888 − 8/8) + 8 × 88) := 8 + (88/8 × ((8/8 + 8 + 8) := ((9 × 9 × 9 × 9 + 9/9)/((9 + 9)/9)) − 99 := 9/9 + (9 × 9 × (9 + 9 + 9) + 999) 222 )) := (8 × 8 − 8) × ((8/8 − 8) + 8 × 8) := ((99 + 9)/9 + 9) × (9 × (9 + 9) − (9/9 + 9)) Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3193 := 1 + ((1 + 1) × (1 + (11 × (1 + (1 + 11)1+1 )))) Ï 3198 := (1 + 1) × ((1 + 1 + 11) × (1 + (1 + 111+1 ))) Ï 3203 := 1 + (1 + (11 × (1 + ((1 + 1) × (1 + (1 + 11)1+1 ))))) := 2/2 + (2 × (2 × (2 × (22 − 2)2 − 2))) := (2 × (2 × (22 − 2))2 ) − 2 := 2 + ((2 × (2 × (22 − 2))2 ) + 2/2) := 3 + (((3 × (33+3 + 333)) + 3/3) + 3) := 3 + ((33 × (3 × 33 − 3)) + 33 ) := (3 × 33 × 33) − ((3/3 + 3)3 ) := 4 + (((4/4 + 4)4+4/4 ) + 4 × 4 × 4) := (4 × ((4 × 4 + 4) × (44 − 4))) − (4 + 4)/4 := 4 + ((4 × ((4 × 4 + 4) × (44 − 4))) − 4/4) := 5 + ((55 /5 + 5)/(5 + 5) + 55 ) := 55 + ((5 × (5 + 5 + 5)) − ((5 + 5)/5)) := 5 × 5 + ((55 − ((5 + 5)/5)) + 55) := 6 × 6 + ((66 × (6 × 6 + 6 + 6)) − (66/6)) := 6 × 6 + ((66 × (6 × 6 + 6 + 6)) − 6) := 6 + ((((6 − 6/6)6−6/6 ) + 66) + 6) := 7/7 + ((7 − 7/7) × (7 × 77 − 7)) := (7 − 7/7) × ((7 × 77 − 7) + 7/7) := 77/7 + ((7 − 7/7) × (7 × 77 − 7)) := 8/8 + ((8 × 8 − 8) × ((8/8 − 8) + 8 × 8)) := ((8 + 8) × (8 × (8 + 8 + 8) + 8)) − (8 + 8)/8 := 88/8 + ((8 × 8 − 8) × ((8/8 − 8) + 8 × 8)) := 9 + ((9 × 9 × (9 + 9 + 9) − ((9 + 9)/9)) + 999) := 9 + (((9 + 9) × (9 × (9 + 9) + 9)) + 999/9) := 9 + ((99 × (9 + 9 + 9) + ((9 + 9)/9)9 ) + 9) Ï 3194 := (1 + 1) × (1 + (1 + (11 × (1 + (1 + 11)1+1 )))) := (2 × ((2 × (22 − 2))2 − 2)) − 2 3 := 3 + ((33 × (3 × 33 − 3)) − 3/3) := 4 + (((4/4 + 4) 4+4/4 4 ) + (4 + 4)/4) Ï 3199 := ((1 + 1) × (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 )) − 1 := (2 × (2 × (22 − 2))2 ) − 2/2 Ï 3204 := (1 + 11) × (1 + ((1 + 1) × (1 + (11 × (1 + 11))))) := 2 × ((2 × (22 − 2))2 + 2) 3 := (((((3 × (3 + 3)) + 3) ) + 333) + 3)/3 := 3 + ((33 × (3 × 33 − 3)) + 33) := (4 × ((4 × 4 + 4) × (44 − 4))) − 4/4 := 4 + (4 × ((4 × 4 + 4) × (44 − 4))) 5 := 5 + ((((55 − 5/5) + 55 ) + 5) + 5) := 5 + ((5 × (5 + 5 + 5)) − 5/5) := 5 × 5 + ((55 − 5/5) + 55 ) := 6 + (((((6 + 6)/6 + 6) × (6 × 66 + 6/6)) + 6) + 6) := 6 × 6 + (((66 × (6 × 6 + 6 + 6)) − 6) + 6/6) := 6 × ((66 × ((6 + 6)/6 + 6)) + 6) := (7 + 7)/7 + ((7 − 7/7) × (7 × 77 − 7)) := 7 + ((7 − 7/7) × (7 × 77 − 7)) := (7 − 7/7) × (((7 + 7)/7 − 7) + 7 × 77) := (8 + 8)/8 + ((8 × 8 − 8) × ((8/8 − 8) + 8 × 8)) := ((8 + 8) × (8 × (8 + 8 + 8) + 8)) − 8/8 := (8/8 + 8) × ((8 × 88 + 8)/((8 + 8)/8)) := 9 + (99 × (9 + 9 + 9) + ((9 + 9)/9)9 ) := 9 + ((99/9 + 9 + 9) × (99/9 + 99)) := 9 × (((9 × 9 × 9 × 9 + 9)/(9 + 9)) − 9) Ï 3195 := 1 + ((1 + 1) × (1 + (1 + (11 × (1 + (1 + 11)1+1 ))))) Ï 3200 := (1 + 1) × (((1 + 1) × ((1 + 1) × (11 − 1)))1+1 ) Ï 3205 := 1 + ((1 + 11) × (1 + ((1 + 1) × (1 + (11 × (1 + 11)))))) := (2 × ((2 × (22 − 2))2 − 2)) − 2/2 := 2 × (2 × (22 − 2))2 := 2/2 + (2 × ((2 × (22 − 2))2 + 2)) := 3 × ((33+3 + 333) + 3) := (33 − 3/3) × (3 × 33 + 3/3) := ((3/3 + 3)3+3 ) − (33 × 33 ) := (4/4 + 4) × ((4 × (4 × (44 − 4))) − 4/4) := 4 × ((4 × 4 + 4) × (44 − 4)) := (4/4 + 4) × ((4/4 + 4)4 + 4 × 4) := 5 + ((55 + 55 + 5) + 5) 5 := 5 × 5 + (55 + 55 ) := 5 + (5 × (5 + 5 + 5)) 6 := 6 + (((6 − 6/6)6−6/6 ) + ((6 + 6)/6)6 ) := (6 − 6/6) × (((66 − 6)/6) × ((6 + 6)/6) ) := 6 × 6 + ((66 × (6 × 6 + 6 + 6)) + 6/6) := 77 + (((7 − ((7 + 7)/7))7−(7+7)/7 ) − 7) := ((7 + 7)/7)7 × (77/7 + 7 + 7) := 7 + ((7 − 7/7) × ((7 × 77 − 7) + 7/7)) := 88/8 + ((8 + 8) × (888/8 + 88)) := (8 + 8) × (8 × (8 + 8 + 8) + 8) := 8 + (8 × 8 × 8 × 8 − (888 + 88/8)) := 9 + (9 × 9 × (9 + 9 + 9) + 999) Ï 3196 := (1 + 1) × (1 + (1 + (1 + (11 × (1 + (1 + 11)1+1 ))))) := (9 − 9/9) × ((99/9 + 9) (9+9)/9 := ((9 − 9/9) × ((9 + 9)/9)9 ) − 9 × 99 ) Ï 3201 := 11 × (1 + ((1 + 1) × (1 + (1 + 11)1+1 ))) Ï 3206 := ((1 + 1 + 1) × (1111 − (1 + 1))) − 111+1 := 2 × ((2 × (22 − 2))2 − 2) := 2/2 + (2 × (2 × (22 − 2))2 ) := 2 + (2 × ((2 × (22 − 2))2 + 2)) := 33 + ((33 × (3 × 33 − 3)) + 3/3) := 33 + (33 × (3 × 33 − 3)) := 3 + ((3 × 33 × 33) − ((3/3 + 3)3 )) := (4 × ((4 × 4 + 4) × (44 − 4))) − 4 := 4/4 + (4 × ((4 × 4 + 4) × (44 − 4))) := (4 − 4/4)4 + ((4/4 + 4)4+4/4 ) := 5 + ((55/5 + 55) + 55 ) := 55 + ((5 × (5 + 5 + 5)) + 5/5) := 5 × 5 + ((55 + 55 ) + 5/5) := (66/6 + 6 × 6) × (((6 + 6)/6) + 66) := 66/6 × ((6 × 66 − 666/6) + 6) := 6 × 6 + ((66 × (6 × 6 + 6 + 6)) + ((6 + 6)/6)) := 77/7 + (7 × (7 × 77 − (77 + 7))) := (77 × (7 × 7 + 7)) − 7777/7 := 7 + (((7 − 7/7) × (7 × 77 − 7)) + 7) := ((8 × (888 − 88)) − 8)/((8 + 8)/8) := 8/8 + ((8 + 8) × (8 × (8 + 8 + 8) + 8)) := 8 × 8 × 8 × 8 − (888 + ((8 + 8)/8)) := 9 + ((9 × 9 × (9 + 9 + 9) + 999) + 9/9) := 99/9 × ((999/9 + 99) + 9 × 9) := 9 + ((9 × 9 × (9 + 9 + 9) + (99/9)) + 999) Ï 3197 := (11 − 1)1+1+1 + ((1 + 1 + 11)1+1+1 ) Ï 3202 := 1 + (11 × (1 + ((1 + 1) × (1 + (1 + 11)1+1 )))) Ï 3207 := ((1 + 1) × (111 + (1 + 1)11 )) − 1111 := 2/2 + (2 × ((2 × (22 − 2))2 − 2)) := 2 + (2 × (2 × (22 − 2))2 ) := 2 + ((2 × ((2 × (22 − 2))2 + 2)) + 2/2) := 33/3 + (3 × (33+3 + 333)) := 3/3 + ((33 × (3 × 33 − 3)) + 33) := 3333 − (3 × 33 + 33 ) := 4/4 + ((4 × ((4 × 4 + 4) × (44 − 4))) − 4) := (4 + 4)/4 + (4 × ((4 × 4 + 4) × (44 − 4))) := (4 − 4/4) × ((4 × 44 + 4/4) + 44) := 5 + ((((55 + 5)/5) + 55 ) + 55) := 55 + ((55 + 55)/5 + 55 ) := 5 × 5 + (((5 + 5)/5 + 55) + 55 ) := 6 + (((6 − 6/6)6−6/6 ) + 66) := 6 + ((66/6 + 6 × 6) × (((6 + 6)/6) + 66)) := 666/6 + ((6 + 6) × (6 × (6 × 6 + 6) + 6)) := 7 + (((7 − 7/7) × (7 × 77 − 7)) − ((7 + 7)/7)) 7−(7+7)/7 := 77 + ((7 − ((7 + 7)/7)) ) := 7 + (((7 + 7)/7)7 × (77/7 + 7 + 7)) := 8 × 8 × 8 × 8 − (888 + 88/8) := (8 + 8)/8 + ((8 + 8) × (8 × (8 + 8 + 8) + 8)) := 8 × 8 × 8 × 8 − (888 + 8/8) := 99/9 + (9 × 9 × (9 + 9 + 9) + 999) := ((99/9 + 9) × (9 × (9 + 9) − 9/9)) − (9 + 9) := 99 + (999/9 × ((9/9 + 9 + 9) + 9)) 223 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3208 := (111 × (((11 − 1) × (1 + 1 + 1)) − 1)) − 11 2 Ï 3213 := 1 + ((1 + 1) × (11 × (1 + (1 + (1 + 11)1+1 )))) 2 Ï 3218 := (111 × (((11 − 1) × (1 + 1 + 1)) − 1)) − 1 := 2 × (((2 × (22 − 2)) + 2) + 2) := 2 + ((2 × (2 × (22 − 2)) ) + 22/2) := 2 + (2 × (2 × (2 × ((22 − 2)2 + 2)))) := 3333 − ((3 − 3/3 + 3)3 ) := 3 × (3 × ((333 − 3) + 33 )) := 3333 − (((333 + 3)/3) + 3) := 4 + ((4 × ((4 × 4 + 4) × (44 − 4))) + 4) := 44 + (((4/4 + 4)4+4/4 ) + 44) := 444 + (((44 × (44 − 4) + 4) + 4)/4) := 5 + (((55 − ((5 + 5)/5)) + 55) + 5 × 5) := 5 × 5 + ((55 /5 + 5)/(5 + 5) + 55 ) := 55 + (5 × 5 × 5 − ((5 + 5)/5)5 ) := ((6 + 6)/6 + 6) × ((6 × 66 − 6/6) + 6) := (666/6 × (6 × 6 − (6/6 + 6))) − 6 := (6 + 6)/6 + (((6 + 6)/6 + 6) × (6 × 66 + 6)) := 7 + ((77 × (7 × 7 + 7)) − 7777/7) := 77 + ((7 × 7 + 7)(7+7)/7 ) := 77 × (7 × 7 − 7) − (((7 + 7)/7 + 7) + 7) := 8 × 8 × 8 × 8 − 888 := (8 − 8/8) × (8 × (8 × 8 − 8) + (88/8)) := 8 + ((8 × 8 × 8 × 8 − 888) + ((8 + 8)/8)) := (9 + 9 + 9) × ((99/9 + 99) + 9) := ((9 + 9)/9) × ((9 × (99 + 9 × 9)) − (99/9)) 9 := (9 − 9/9) × ((((9 + 9)/9) ) − 999/9) Ï 3209 := ((1 + 1 + 1) × (1111 − 1)) − 111+1 Ï 3214 := (1 + 1) × (1 + (11 × (1 + (1 + (1 + 11)1+1 )))) 2 Ï 3219 := 111 × (((11 − 1) × (1 + 1 + 1)) − 1) := 2/2 + (2 × (((2 × (22 − 2)) + 2) + 2)) := 2 + (22 × (((2 × (2 + 2 + 2)) ) + 2)) := 2 + ((2 × (2 × (2 × ((22 − 2)2 + 2)))) + 2/2) := 3 + (((3 × 33 × 33) − ((3/3 + 3)3 )) + 3) := 3/3 + (3 × 3 × 333 + (3 + 3)3 ) := 33 + (3 × (33+3 + 333)) := 4 + ((4/4 + 4) × ((4/4 + 4)4 + 4 × 4)) := 4 + ((44 − 4)/4 × ((44 + 4)/4 + 44 )) := 4 + (((4 + 4)4 ) − ((4/4 + 4)4 + 44 )) := 5 + (((55 − 5/5) + 55 ) + 5 × 5) := 55 + (5 × (5 × 5 − 5) − (55/5)) := 55 + (5 × (5 × 5 − 5) − (5/5 + 5)) := 6 + (((((6 − 6/6)6−6/6 ) + 66) + 6) + 6) := 6 + (((6 + 6)/6 + 6) × ((6 × 66 − 6/6) + 6)) := 666/6 × (6 × 6 − (6/6 + 6)) := 77 × (7 × 7 − 7) − (77/7 + 7 + 7) := 7/7 + (((7 × 7 + 7)(7+7)/7 ) + 77) := 77 × (7 × 7 − 7) − (7/7 + 7 + 7) := 8/8 + (8 × 8 × 8 × 8 − 888) := 8 + (8 × 8 × 8 × 8 − (888 + ((8 + 8)/8))) := 88/8 + (8 × 8 × 8 × 8 − 888) := 9 + ((9 − 9/9) × ((99/9 + 9) (9+9)/9 )) Ï 3210 := (1 + 1) × ((11 × (1 + (1 + (1 + 11)1+1 ))) − 1) 2 9 := 9 + (((9 − 9/9) × ((9 + 9)/9) ) − 9 × 99) Ï 3215 := ((1 + 1 + 1) × (1 + 1111)) − 111+1 := 999/9 × (99/9 + 9 + 9) Ï 3220 := 1 + (111 × (((11 − 1) × (1 + 1 + 1)) − 1)) := 2 + (2 × (((2 × (22 − 2)) + 2) + 2)) := 22/2 + (2 × ((2 × (22 − 2))2 + 2)) := 2 × ((2 × (2 × ((22 − 2)2 + 2))) + 2) := (3 + 3)3 + (3 × 3 × 333 − 3) := 3 + ((3 × 3 × 333 − 3/3) + (3 + 3)3 ) := 3333 + (((3 − 333)/3) − 3) := ((4 + 4)4 ) − ((4/4 + 4)4 + 44 ) := 4 + (4 × (((4 × 4 + 4) × (44 − 4)) + 4)) 2 4 4 := (44 − 4)/4 × ((4 + 4)/4 + 4 ) 5 := 55 + (5 × (5 × 5 − 5) − 5) := 5 + ((55 + 5 ) + 5 × 5) := 5 + (((55 + 55 ) + 5 × 5) + 5) := 6 + ((66 × (6 × 6 + 6 + 6)) + 6 × 6) := (((6 + 6)/6 + 6) × (6 × 66 + 6)) − 6/6 := (6/6 + 6) × (((6 + 6)/6)6 + 6 × 66) := (7 − 7/7) × ((7 × 77 − (77/7)) + 7) := ((7 + 7)/7)7 + 7 × 7 × (7 × 7 + 7 + 7) := 77 × (7 × 7 − 7) − (7 + 7) := (8 + 8)/8 + (8 × 8 × 8 × 8 − 888) := 8 + (8 × 8 × 8 × 8 − (888 + 8/8)) := 8 + ((88/((8 + 8)/8)) × ((8/8 + 8 × 8) + 8)) := (999/9 × (99/9 + 9 + 9)) − 9 := 99 + ((9/9 + 9 + 9) × (((9 + 9)/9) + 9 × (9 + 9))) := (99/9 + 9) × (9 × (9 + 9) − 9/9) Ï 3216 := (1 + 1) × ((1 + 11) × (1 + (1 + (11 × (1 + 11))))) Ï 3221 := ((1 + 1 + 1) × 1111) − (1 + 111) Ï 3211 := (((1 + 1) × (11 − 1)) − 1) × (1 + 1 + 11)1+1 2 := 22/2 + (2 × (2 × (22 − 2)) ) := 2 × (2 × (2 × ((22 − 2) + 2))) := 22 + ((2 × (2 × (22 − 2))2 ) − 2/2) := 3 + (3333 − ((3 − 3/3 + 3)3 )) := 3 + (3 × 3 × 333 + (3 + 3)3 ) := 3333 − ((333 + 3)/3) := 44/4 + (4 × ((4 × 4 + 4) × (44 − 4))) := 4 × (((4 × 4 + 4) × (44 − 4)) + 4) := ((44 − 4/4) × ((44 + 44 )/4)) − 4 := 5 + (555/5 − 5 × 5) := 5 + ((555/5 − 5 × 5) + 55 ) := 55 + ((5 × (5 × 5 − 5) − 5) + 5/5) := 6 + (((66 × (6 × 6 + 6 + 6)) + 6 × 6) + 6/6) := ((6 + 6)/6 + 6) × (6 × 66 + 6) := 6 + ((((6 + 6)/6 + 6) × (6 × 66 + 6)) − 6/6) := 7 + ((7 − 7/7) × (((7 + 7)/7 − 7) + 7 × 77)) := 77 × (7 × 7 − 7) − (77/7 + 7) := 7/7 + (77 × (7 × 7 − 7) − (7 + 7)) := 88/8 + ((8 + 8) × (8 × (8 + 8 + 8) + 8)) := 8 + (8 × 8 × 8 × 8 − 888) := 8 + ((8 − 8/8) × (8 × (8 × 8 − 8) + (88/8))) := ((99/9 + 9) × (9 × (9 + 9) − 9/9)) − 9 := 9 + ((999/9 × ((9/9 + 9 + 9) + 9)) + 99) := ((9 + 9) × (99 + 9 × 9)) − (9/9 + 9 + 9) 5 Ï 3212 := (1 + 1) × (11 × (1 + (1 + (1 + 11)1+1 ))) 2 2 Ï 3217 := (111 × (((11 − 1) × (1 + 1 + 1)) − 1)) − 1 − 1 Ï 3222 := ((1 + 1 + 1) × 1111) − 111 := 22 × (((2 × (2 + 2 + 2)) ) + 2) := 2/2 + (2 × (2 × (2 × ((22 − 2) + 2)))) := 22 + (2 × (2 × (22 − 2))2 ) := (3 + 3)3 + (3 × 3 × 333 − 3/3) := 3 + ((3 × 3 × 333 + (3 + 3)3 ) + 3/3) := 3333 − 333/3 := 4/4 + (4 × (((4 × 4 + 4) × (44 − 4)) + 4)) := 44 × (44 + 4) + (4444 − 4)/4 4 := 44 × (((4 + 4)/4 + 4) + 4) 5 5 2 := 55 + (((5 + 5)/5) + 5 ) := 5 + ((((5 + 5)/5) + 5 ) + 55) := 5 + (((((5 + 5)/5)5 + 55 ) + 55) + 5) := 6 × 6 + (((6 + 6)/6 + 6) × (6 × 66 + 6/6)) := 6/6 + (((6 + 6)/6 + 6) × (6 × 66 + 6)) := 6 + (((6 + 6)/6 + 6) × (6 × 66 + 6)) := ((7 − 77)/7) + (77 × (7 × 7 − 7) − 7) := (7 − 7/7) × (7 × 77 − ((7 + 7)/7)) := (88/((8 + 8)/8)) × ((8/8 + 8 × 8) + 8) := 8 + ((8 × 8 × 8 × 8 − 888) + 8/8) := 88 + (((8 × 8 − 8)(8+8)/8 ) − ((8 + 8)/8)) := (((9 + 9)/9)9 ) + ((9 + 9 + 9) × (9/9 + 99)) := 9 × 9 + (((999 + 9)/(9 + 9))(9+9)/9 ) := (9 + 9) × ((9 × 9 − 9/9) + 99) := 77 + (((7 × 7 + 7) (7+7)/7 5 ) − 7/7) 5 224 Inder J. Taneja Single Digit Representations of Natural Numbers From 1 to 5000, Zenodo, Open Access, pp. 1-345, Jan. 2019 Ï 3223 := 1 + (((1 + 1 + 1) × 1111) − 111) Ï 3228 := ((1 + 1 + 1) × (1 + (1 + 1111))) − 111 Ï 3233 := 11 + (((1 + 1 + 1) × 1111) − 111) := 22 + ((2 × (2 × (22 − 2)) ) + 2/2) := 2 + ((2 × ((2 × (22 − 2)) + 2)) + 22) := 22 + ((2 × (2 × (22 − 2))2 ) + 22/2) := 3333 + ((3 − 333)/3) := 3 + (3333 − (3 × (33 + 3))) := 3333 − (3 × 33 + 3/3) := 44 × (44 + 4) + 4444/4 := ((4 + 4) × ((444 − 44) + 4)) − 4 2 5 2 := 4/4 + ((4 + 4) × ((444 − 44) + 4)) 5 := 55 + ((55 − ((5 + 5)/5)) + 55) := 5 + (5 × (5 × 5 − 5) − ((5 + 5)/5)) := 5 + 5 × (5 × 5 − 5) − (5 + 5)/5 + 5 := 6 + ((((6 + 6)/6 + 6) × (6 × 66 + 6)) + 6/6) := 66 + ((66 × (6 × 6 + 6 + 6)) − 6) := 66 + ((66 × (6 × 6 + 6 + 6)) − 6/6) := 77 × (7 × 7 − 7) − 77/7 := 88 + (((8 × 8 − 8) (8+8)/8 ) − 8/8) := 9/9 + ((9 + 9) × ((9 × 9 − 9/9) + 99)) Ï 3224 := 1 + (1 + (((1 + 1 + 1) × 1111) − 111)) := 7/7 + (77 × (7 × 7 − 7) − 7) := 77 × (7 × 7 − 7) − 7/7 := 8 × 8 + (((88 × (8 × 8 + 8)) − 8)/((8 + 8)/8)) := (((8/8 − 8) + 8 × 8)(8+8)/8 ) − 8 − 8 := 9 + (999/9 × (99/9 + 9 + 9)) := (9 + 9)/9 + (((9 + 9) × (99 + 9 × 9)) − 9) Ï 3229 := 1 + (((1 + 1 + 1) × (1 + (1 + 1111))) − 111) Ï 3234 := (1 + 1) × (((1 + 11)1+1+1 ) − 111) := 2 + ((2 × (2 × (22 − 2))2 ) + 22) := 2 + ((2222/2) + (2 × 22 + 2)2 ) := 22 × (((22/2 + 2)2 ) − 22) := 3 + (3333 − ((333 + 3)/3)) := (3 × 33 × 33) − (33/3 + 33 ) := 33 × (3 × 33 − 3/3) 4 4 := ((4 − 4 ) + 4) × (4 − (4 × 4 + 4/4)) := 4 + ((44 − 4/4) × ((44 + 4 )/4)) := (44 − (4 + 4)/4) × ((4 − 4/4)4 − 4) := 55 + (5 × (5 × 5 − 5) − 5/5) := 55 + (55 − 5)/(5 × 5 + 5) := 55 + ((55 − 5/5) + 55 ) := ((6 + 6)/6 + 6) × ((6 × 66 + 6/6) + 6) := (6 × ((6 + 6 + 6) × (6 × 6 − 6))) − 66/6 := 66 + (66 × (6 × 6 + 6 + 6)) := ((7 − 77)/7) + 77 × (7 × 7 − 7) := (7 + 7)/7 + (77 × (7 × 7 − 7) − 7) := 77 × (7 × 7 − 7) := 8 + (((8 − 8/8) × (8 × (8 × 8 − 8) + (88/8))) + 8) := (8 − 8/8) × ((8 − 8/8) × (((8 + 8)/8) + 8 × 8)) := ((9 + 9) × (99 + 9 × 9)) − 99/9 := (99 − 9/9) × (99/((9 + 9 + 9)/9)) := 88 + ((8 × 8 − 8) (8+8)/8 ) := (9 + 9)/9 + ((9 + 9) × ((9 × 9 − 9/9) + 99)) Ï 3225 := ((1 + 1 + 1) × (1 + 1111)) − 111 Ï 3230 := 11 + (111 × (((11 − 1) × (1 + 1 + 1)) − 1)) Ï 3235 := 1 + ((1 + 1) × (((1 + 11)1+1+1 ) − 111)) := 2 + (((2