tables > repunit > 2

Base 2 Repunits

Table

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(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

0: \[2^{0}-1\] 0
1: \[2^{1}-1\] 1
2: \[2^{2}-1\] 3
3: \[2^{3}-1\] 7
4: \[2^{4}-1\] 3 × 5
5: \[2^{5}-1\] 31
6: \[2^{6}-1\] 32 × 7
7: \[2^{7}-1\] 127
8: \[2^{8}-1\] 3 × 5 × 17
9: \[2^{9}-1\] 7 × 73
10: \[2^{10}-1\] 3 × 11 × 31
11: \[2^{11}-1\] 23 × 89
12: \[2^{12}-1\] 32 × 5 × 7 × 13
13: \[2^{13}-1\] 8191
14: \[2^{14}-1\] 3 × 43 × 127
15: \[2^{15}-1\] 7 × 31 × 151
16: \[2^{16}-1\] 3 × 5 × 17 × 257
17: \[2^{17}-1\] 131071
18: \[2^{18}-1\] 33 × 7 × 19 × 73
19: \[2^{19}-1\] 524287
20: \[2^{20}-1\] 3 × 52 × 11 × 31 × 41
21: \[2^{21}-1\] 72 × 127 × 337
22: \[2^{22}-1\] 3 × 23 × 89 × 683
23: \[2^{23}-1\] 47 × 178481
24: \[2^{24}-1\] 32 × 5 × 7 × 13 × 17 × 241
25: \[2^{25}-1\] 31 × 601 × 1801
26: \[2^{26}-1\] 3 × 2731 × 8191
27: \[2^{27}-1\] 7 × 73 × 262657
28: \[2^{28}-1\] 3 × 5 × 29 × 43 × 113 × 127
29: \[2^{29}-1\] 233 × 1103 × 2089
30: \[2^{30}-1\] 32 × 7 × 11 × 31 × 151 × 331
31: \[2^{31}-1\] 2147483647
32: \[2^{32}-1\] 3 × 5 × 17 × 257 × 65537
33: \[2^{33}-1\] 7 × 23 × 89 × 599479
34: \[2^{34}-1\] 3 × 43691 × 131071
35: \[2^{35}-1\] 31 × 71 × 127 × 122921
36: \[2^{36}-1\] 33 × 5 × 7 × 13 × 19 × 37 × 73 × 109
37: \[2^{37}-1\] 223 × 616318177
38: \[2^{38}-1\] 3 × 174763 × 524287
39: \[2^{39}-1\] 7 × 79 × 8191 × 121369
40: \[2^{40}-1\] 3 × 52 × 11 × 17 × 31 × 41 × 61681
41: \[2^{41}-1\] 13367 × 164511353
42: \[2^{42}-1\] 32 × 72 × 43 × 127 × 337 × 5419
43: \[2^{43}-1\] 431 × 9719 × 2099863
44: \[2^{44}-1\] 3 × 5 × 23 × 89 × 397 × 683 × 2113
45: \[2^{45}-1\] 7 × 31 × 73 × 151 × 631 × 23311
46: \[2^{46}-1\] 3 × 47 × 178481 × 2796203
47: \[2^{47}-1\] 2351 × 4513 × 13264529
48: \[2^{48}-1\] 32 × 5 × 7 × 13 × 17 × 97 × 241 × 257 × 673
49: \[2^{49}-1\] 127 × 4432676798593<13>
50: \[2^{50}-1\] 3 × 11 × 31 × 251 × 601 × 1801 × 4051
51: \[2^{51}-1\] 7 × 103 × 2143 × 11119 × 131071
52: \[2^{52}-1\] 3 × 5 × 53 × 157 × 1613 × 2731 × 8191
53: \[2^{53}-1\] 6361 × 69431 × 20394401
54: \[2^{54}-1\] 34 × 7 × 19 × 73 × 87211 × 262657
55: \[2^{55}-1\] 23 × 31 × 89 × 881 × 3191 × 201961
56: \[2^{56}-1\] 3 × 5 × 17 × 29 × 43 × 113 × 127 × 15790321
57: \[2^{57}-1\] 7 × 32377 × 524287 × 1212847
58: \[2^{58}-1\] 3 × 59 × 233 × 1103 × 2089 × 3033169
59: \[2^{59}-1\] 179951 × 3203431780337<13>
60: \[2^{60}-1\] 32 × 52 × 7 × 11 × 13 × 31 × 41 × 61 × 151 × 331 × 1321
61: \[2^{61}-1\] 2305843009213693951<19>
62: \[2^{62}-1\] 3 × 715827883 × 2147483647
63: \[2^{63}-1\] 72 × 73 × 127 × 337 × 92737 × 649657
64: \[2^{64}-1\] 3 × 5 × 17 × 257 × 641 × 65537 × 6700417
65: \[2^{65}-1\] 31 × 8191 × 145295143558111<15>
66: \[2^{66}-1\] 32 × 7 × 23 × 67 × 89 × 683 × 20857 × 599479
67: \[2^{67}-1\] 193707721 × 761838257287<12>
68: \[2^{68}-1\] 3 × 5 × 137 × 953 × 26317 × 43691 × 131071
69: \[2^{69}-1\] 7 × 47 × 178481 × 10052678938039<14>
70: \[2^{70}-1\] 3 × 11 × 31 × 43 × 71 × 127 × 281 × 86171 × 122921
71: \[2^{71}-1\] 228479 × 48544121 × 212885833
72: \[2^{72}-1\] 33 × 5 × 7 × 13 × 17 × 19 × 37 × 73 × 109 × 241 × 433 × 38737
73: \[2^{73}-1\] 439 × 2298041 × 9361973132609<13>
74: \[2^{74}-1\] 3 × 223 × 1777 × 25781083 × 616318177
75: \[2^{75}-1\] 7 × 31 × 151 × 601 × 1801 × 100801 × 10567201
76: \[2^{76}-1\] 3 × 5 × 229 × 457 × 174763 × 524287 × 525313
77: \[2^{77}-1\] 23 × 89 × 127 × 581283643249112959<18>
78: \[2^{78}-1\] 32 × 7 × 79 × 2731 × 8191 × 121369 × 22366891
79: \[2^{79}-1\] 2687 × 202029703 × 1113491139767<13>
80: \[2^{80}-1\] 3 × 52 × 11 × 17 × 31 × 41 × 257 × 61681 × 4278255361
81: \[2^{81}-1\] 7 × 73 × 2593 × 71119 × 262657 × 97685839
82: \[2^{82}-1\] 3 × 83 × 13367 × 164511353 × 8831418697<10>
83: \[2^{83}-1\] 167 × 57912614113275649087721<23>
84: \[2^{84}-1\] 32 × 5 × 72 × 13 × 29 × 43 × 113 × 127 × 337 × 1429 × 5419 × 14449
85: \[2^{85}-1\] 31 × 131071 × 9520972806333758431<19>
86: \[2^{86}-1\] 3 × 431 × 9719 × 2099863 × 2932031007403<13>
87: \[2^{87}-1\] 7 × 233 × 1103 × 2089 × 4177 × 9857737155463<13>
88: \[2^{88}-1\] 3 × 5 × 17 × 23 × 89 × 353 × 397 × 683 × 2113 × 2931542417
89: \[2^{89}-1\] 618970019642690137449562111<27>
90: \[2^{90}-1\] 33 × 7 × 11 × 19 × 31 × 73 × 151 × 331 × 631 × 23311 × 18837001
91: \[2^{91}-1\] 127 × 911 × 8191 × 112901153 × 23140471537<11>
92: \[2^{92}-1\] 3 × 5 × 47 × 277 × 1013 × 1657 × 30269 × 178481 × 2796203
93: \[2^{93}-1\] 7 × 2147483647 × 658812288653553079<18>
94: \[2^{94}-1\] 3 × 283 × 2351 × 4513 × 13264529 × 165768537521<12>
95: \[2^{95}-1\] 31 × 191 × 524287 × 420778751 × 30327152671<11>
96: \[2^{96}-1\] 32 × 5 × 7 × 13 × 17 × 97 × 193 × 241 × 257 × 673 × 65537 × 22253377
97: \[2^{97}-1\] 11447 × 13842607235828485645766393<26>
98: \[2^{98}-1\] 3 × 43 × 127 × 4363953127297<13> × 4432676798593<13>
99: \[2^{99}-1\] 7 × 23 × 73 × 89 × 199 × 153649 × 599479 × 33057806959<11>

Index range: 0 – 99 next >>