This problem was proposed by Integermaniac master Pellegrini Paolo. Create each of the positive integers using four copies of 1, and any standard operations. All four numbers must be used, but no others. Your solutions will be assigned an exquisiteness level.
Use the online submissions page to get your Integermania solutions posted here! Five "new" or "improved" solutions per person per month are accepted.
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1 (1.0) 1 + 1 – 1 × 1 Pellegrini Paolo, 3/09 Martina Franca, Italy |
2 (1.0) 1 + 1 + 1 – 1 Pellegrini Paolo, 3/09 Martina Franca, Italy |
3 (1.0) 1 + 1 + 1 × 1 Pellegrini Paolo, 3/09 Martina Franca, Italy |
4 (1.0) 1 + 1 + 1 + 1 Pellegrini Paolo, 3/09 Martina Franca, Italy |
5 (2.2) Ralph Jeffords, 5/09 Centreville, VA |
6 (2.4) Steve Wilson, 4/09 Raytown, MO |
7 (2.4) Ralph Jeffords, 3/09 Centreville, VA |
8 (2.2) Ralph Jeffords, 4/09 Centreville, VA |
9 (2.0) 11 – 1 – 1 Steve Wilson, 3/09 Raytown, MO |
10 (2.0) 11 – 1 × 1 Steve Wilson, 3/09 Raytown, MO |
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11 (2.0) 11 – 1 + 1 Steve Wilson, 3/09 Raytown, MO |
12 (2.0) 11 + 1 × 1 Steve Wilson, 3/09 Raytown, MO |
13 (2.0) 11 + 1 + 1 Steve Wilson, 3/09 Raytown, MO |
14 (3.6) 11 + Ralph Jeffords, 4/09 Centreville, VA |
15 (3.8)![]() Pellegrini Paolo, 4/09 Martina Franca, Italy |
16 (4.0) Pellegrini Paolo, 4/09 Martina Franca, Italy |
17 (2.4) Ralph Jeffords, 3/09 Centreville, VA |
18 (2.4) Ralph Jeffords, 3/09 Centreville, VA |
19 (2.2) Steve Wilson, 4/09 Raytown, MO |
20 (2.2) Steve Wilson, 4/09 Raytown, MO |
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21 (2.2) Steve Wilson, 4/09 Raytown, MO |
22 (2.0) 11 + 11 Steve Wilson, 4/09 Raytown, MO |
23 (3.8)
– 1Pellegrini Paolo, 4/09 Martina Franca, Italy |
24 (3.2) (1 + 1 + 1 + 1)! Carolyn Neptune, 3/09 Prairie Village, KS |
25 (3.4) Pellegrini Paolo, 4/09 Martina Franca, Italy |
26 (4.0) Pellegrini Paolo, 4/09 Martina Franca, Italy |
27 (2.4) Carolyn Neptune, 3/09 Prairie Village, KS |
28 (3.8) Ralph Jeffords, 6/09 Centreville, VA |
29 (3.8) Ralph Jeffords, 5/09 Centreville, VA |
30 (2.2) Dave Jones, 4/09 Coventry, England |
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31 (3.8) Ralph Jeffords, 5/09 Centreville, VA |
32
(3.4) Ralph Jeffords, 4/09 Centreville, VA |
33 (3.6) 11 × Ralph Jeffords, 5/09 Centreville, VA |
34 (3.6) Pellegrini Paolo, 5/09 Martina Franca, Italy |
35 (4.6)![]() Ralph Jeffords, 6/09 Centreville, VA |
36 (3.6) Pellegrini Paolo, 5/09 Martina Franca, Italy |
37 (3.6) 111 × Pellegrini Paolo, 5/09 Martina Franca, Italy |
38 (4.4) Ralph Jeffords, 8/09 Centreville, VA |
39 (4.2) Ralph Jeffords, 6/09 Centreville, VA |
40 (3.8)![]() Pellegrini Paolo, 5/09 Martina Franca, Italy |
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41 (3.8) Pellegrini Paolo, 5/09 Martina Franca, Italy |
42 (4.6) (1 + 1) × Steve Wilson, 9/09 Raytown, MO |
43 (4.8) –log(1%%) × 11 – 1 Ralph Jeffords, 10/09 Centreville, VA |
44 (3.2) Ralph Jeffords, 8/09 Centreville, VA |
45 (2.4) Dave Jones, 4/09 Coventry, England |
46 (3.2) Ralph Jeffords, 8/09 Centreville, VA |
47 (4.6) Ralph Jeffords, 10/09 Centreville, VA |
48 (4.6) Steve Wilson, 9/09 Raytown, MO |
49 (2.2) Dave Jones, 4/09 Coventry, England |
50 (2.2) Dave Jones, 4/09 Coventry, England |
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51 (2.2) Dave Jones, 4/09 Coventry, England |
52 (4.6) Steve Wilson, 9/09 Raytown, MO |
53 (4.6) Ralph Jeffords, 10/09 Centreville, VA |
54 (3.6) Carolyn Neptune, 3/09 Prairie Village, KS |
55 (2.2) Steve Wilson, 5/09 Raytown, MO |
56 (4.6) 1 – Steve Wilson, 10/09 Raytown, MO |
57 (4.0) Pellegrini Paolo, 6/09 Martina Franca, Italy |
58 (5.0) Ralph Jeffords, 11/09 Centreville, VA |
59 (3.8) Pellegrini Paolo, 6/09 Martina Franca, Italy |
60 (3.4) Pellegrini Paolo, 6/09 Martina Franca, Italy |
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61 (3.8) Pellegrini Paolo, 6/09 Martina Franca, Italy |
62 (4.4)![]() Ralph Jeffords, 11/09 Centreville, VA |
63 (3.8) Pellegrini Paolo, 6/09 Martina Franca, Italy |
64 (3.8) Steve Wilson, 9/09 Raytown, MO |
65 (4.6)![]() Pellegrini Paolo, 10/09 Martina Franca, Italy |
66 (3.8)
× 11Pellegrini Paolo, 7/09 Martina Franca, Italy |
67 (4.4) Pellegrini Paolo, 10/09 Martina Franca, Italy |
68 (5.2) Ralph Jeffords, 11/09 Centreville, VA |
69 (4.4)![]() Pellegrini Paolo, 10/09 Martina Franca, Italy |
70 (3.8) Pellegrini Paolo, 7/09 Martina Franca, Italy |
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71 (4.2)![]() Pellegrini Paolo, 10/09 Martina Franca, Italy |
72 (2.8) Steve Wilson, 5/09 Raytown, MO |
73 (4.2)
× .1 + 1Ralph Jeffords, 11/09 Centreville, VA |
74 (3.8)
– 1Pellegrini Paolo, 7/09 Martina Franca, Italy |
75 (3.8)
× 1Pellegrini Paolo, 7/09 Martina Franca, Italy |
76 (3.8)
+ 1Ralph Jeffords, 7/09 Centreville, VA |
79 (2.8) Steve Wilson, 5/09 Raytown, MO |
80 (2.6) Ralph Jeffords, 9/09 Centreville, VA |
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81 (2.8) Ralph Jeffords, 9/09 Centreville, VA |
82 (2.8) Ralph Jeffords, 9/09 Centreville, VA |
83 (4.8) Steve Wilson, 10/09 Raytown, MO |
84 (4.6)![]() Kevin Schwarz, 8/09 Olathe, Kansas |
87 (4.4) Kevin Schwarz, 7/09 Olathe, Kansas |
88 (2.8) Steve Wilson, 5/09 Raytown, MO |
89 (2.2) Kevin Schwarz, 7/09 Olathe, Kansas |
90 (2.4) Ralph Jeffords, 9/09 Centreville, VA |
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91 (2.6) Ralph Jeffords, 9/09 Centreville, VA |
92 (2.8) Steve Wilson, 5/09 Raytown, MO |
93 (4.4) Kevin Schwarz, 7/09 Olathe, Kansas |
94 (4.0)![]() Ralph Jeffords, 7/09 Centreville, VA |
95 (4.8) Steve Wilson, 9/09 Raytown, MO |
96 (4.6)![]() Kevin Schwarz, 8/09 Olathe, Kansas |
97 (3.8) Kevin Schwarz, 7/09 Olathe, Kansas |
98 (2.2) Kevin Schwarz, 6/09 Olathe, Kansas |
99 (2.2) Kevin Schwarz, 6/09 Olathe, Kansas |
100 (2.2) Kevin Schwarz, 6/09 Olathe, Kansas |
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101 (2.2) Kevin Schwarz, 6/09 Olathe, Kansas |
102 (2.2) Kevin Schwarz, 6/09 Olathe, Kansas |
103 (3.8) Kevin Schwarz, 7/09 Olathe, Kansas |
104 (4.6) Steve Wilson, 10/09 Raytown, MO |
105 (4.8) Steve Wilson, 10/09 Raytown, MO |
106 (4.0)![]() Kevin Schwarz, 8/09 Olathe, Kansas |
108 (2.4) Ralph Jeffords, 7/09 Centreville, VA |
109 (2.2) Ralph Jeffords, 7/09 Centreville, VA |
110 (2.0) 111 – 1 Kevin Schwarz, 4/09 Olathe, Kansas |
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111
(2.0) 111 × 1 Brooke Atkinson, 4/09 Olathe, KS |
112 (2.0) 111 + 1 Kevin Schwarz, 4/09 Olathe, Kansas |
118 (3.2) Pellegrini Paolo, 8/09 Martina Franca, Italy |
119 (3.6) Steve Wilson, 8/09 Raytown, MO |
120 (2.2) Ralph Jeffords, 7/09 Centreville, VA |
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121
(2.0) 11 × 11 Brooke Atkinson, 6/09 Olathe, KS |
122 (4.6) Steve Wilson, 10/09 Raytown, MO |
125 (2.6) Pellegrini Paolo, 7/09 Martina Franca, Italy |
130 (3.8) Ralph Jeffords, 10/09 Centreville, VA |
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162 (2.8) Pellegrini Paolo, 9/09 Martina Franca, Italy |
165 (4.0)![]() Pellegrini Paolo, 9/09 Martina Franca, Italy |
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171 (3.2) Pellegrini Paolo, 9/09 Martina Franca, Italy |
179 (3.0) Pellegrini Paolo, 9/09 Martina Franca, Italy |
180 (2.4) Pellegrini Paolo, 9/09 Martina Franca, Italy |
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190 (2.4) Steve Wilson, 8/09 Raytown, MO |
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199 (2.2) Steve Wilson, 8/09 Raytown, MO |
200 (2.2) Steve Wilson, 8/09 Raytown, MO |
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201 (2.2) Steve Wilson, 8/09 Raytown, MO |
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225 (2.6) Pellegrini Paolo, 8/09 Martina Franca, Italy |
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991 (2.6) Pellegrini Paolo, 8/09 Martina Franca, Italy |
998 (2.4) Pellegrini Paolo, 8/09 Martina Franca, Italy |
999 (2.4) Pellegrini Paolo, 8/09 Martina Franca, Italy |
1000 (2.2) Lisa Fisher, 7/09 Lawrence, KS |
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11100 (2.2) Lisa Fisher, 7/09 Lawrence, KS |
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111000 (2.4) Lisa Fisher, 7/09 Lawrence, KS |
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googol (3.4) Pellegrini Paolo, 3/09 Martina Franca, Italy |
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googolplex (3.8)![]() Ralph Jeffords, 4/09 Centreville, VA |