Riesel list (k·2n-1 prime) for 1 < k < 100

k Reserved
Last editor
Last Update #n Nash weight max n/
range tested
k · 2n - 1 is prime for the following n's
1 GIMPS 2018-09-03 50 925
  • 44.599M
2*, 3, 5*, 7*, 13, 17, 19*, 31, 61, 89, 107, 127, 521, 607, 1279, 2203, 2281, 3217, 4253, 4423, 9689, 9941, 11213, 19937, 21701, 23209, 44497, 86243, 110503, 132049, 216091, 756839, 859433, 1257787, 1398269, 2976221, 3021377, 6972593, 13466917, 20996011, 24036583, 25964951, 30402457, 32582657, 37156667, 42643801, 43112609 (...) 57885161, 74207281, 77232917
3 PrimeGrid
Status
2018-09-03 61 2976
  • 14.397M
1, 2*, 3, 4*, 6*, 7, 11, 18, 34, 38, 43, 55, 64, 76, 94, 103, 143, 206, 216, 306, 324, 391, 458, 470, 827, 1274, 3276, 4204, 5134, 7559, 12676, 14898, 18123, 18819, 25690, 26459, 41628, 51387, 71783, 80330, 85687, 88171, 97063, 123630, 155930, 164987, 234760, 414840, 584995, 702038, 727699, 992700, 1201046, 1232255, 2312734, 3136255, 4235414, 6090515, 11484018, 11731850, 11895718
5 RPS Thread 2017-08-08 46 2180
  • 5.25M
  • 5.3M–5.4M
2, 4*, 8, 10*, 12*, 14, 18, 32, 48, 54, 72, 148, 184, 248, 270, 274, 420, 1340, 1438, 1522, 1638, 1754, 1884, 2014, 2170, 2548, 2622, 2652, 2704, 13510, 21738, 25624, 41934, 51478, 52540, 53230, 172300, 245728, 350028, 1194164, 2460482, 3059698, 3090860, 3264650, 3569154 (...) 5429494
7 P. Minovic 2017-01-02 21 912
  • 4.23M
1, 5, 9, 17, 21, 29*, 45, 177, 18381, 22529, 24557, 26109, 34857, 41957, 67421, 70209, 169085, 173489, 177977, 363929, 372897
9 D. Domanov 2017-01-02 47 1674
  • 6M
1, 3, 7, 13, 15, 21, 43, 63, 99, 109, 159, 211, 309, 343, 415, 469, 781, 871, 939, 1551, 3115, 3349, 5589, 5815, 5893, 7939, 8007, 11547, 12495, 22555, 23647, 35647, 83415, 103059, 184999, 275859, 384243, 484975, 503893, 828709, 1010277, 1419855, 1481821, 2060941, 3259381, 4005979, 4683555
11 T. Ritschel 2017-08-03 25 795
  • 6.25M
2, 26, 50, 54, 126, 134, 246, 354, 362, 950, 1310, 2498, 6926, 11826, 31734, 67850, 74726, 96150, 374114, 696438, 743322, 1044086, 1104606, 1261478, 4643238
13 M. Curtis 2017-07-03 25 1066
  • 4.19M
3, 7, 23, 287, 291, 795, 2203, 5711, 7927, 9443, 10095, 19071, 29611, 34651, 51875, 55343, 77511, 166303, 233207, 2606075, 2642943, 3527315, 3664703, 3675223 (...) 4333087
15
(1)
RPS Thread 2017-12-04 55 2221
  • 5.2M
1, 2, 4, 5, 10, 14*, 17, 31, 41, 73, 80, 82, 116, 125, 145, 157, 172, 202, 224, 266, 289, 293, 463, 1004, 1246, 2066, 2431, 2705, 4622, 5270, 7613, 21727, 21962, 40742, 41054, 60622, 83263, 83669, 91457, 103940, 104177, 108124, 115327, 161453, 172714, 454681, 568780, 656264, 712294, 902474, 1084010, 1344313, 1837873, 2323205, 3668194
17 RPS Thread 2015-07-12 43 2416
  • 5M
2, 4, 6, 16*, 20, 36*, 54, 60, 96, 124, 150, 252, 356, 460, 612, 654, 664, 698, 702, 972, 1188, 1312, 3062, 4214, 4288, 5280, 9100, 20262, 21676, 24828, 46144, 62148, 79974, 117784, 211464, 310744, 310754, 429318, 601158, 605394, 2721830, 2946584, 4107544
19 P. Benson 2013-02-12 37 1292
  • 5M
1, 3, 5, 21, 41, 49, 89, 133, 141, 165, 189, 293, 305, 395, 651, 665, 771, 801, 923, 953, 3689, 5315, 6989, 15641, 48819, 78389, 134053, 167843, 181395, 311091, 353661, 645555, 916763, 1325245, 1434165, 1684813, 3155009
21 P. Minovic 2017-01-02 43 2103
  • 2.89M
1, 2, 3, 7, 10, 13, 18, 27, 37, 51, 74, 157, 271, 458, 530, 891, 1723, 1793, 1849, 1986, 2191, 2869, 4993, 7777, 11730, 15313, 29171, 35899, 36227, 71570, 199219, 233914, 297499, 332523, 348547, 538657, 986130, 999599, 1170083, 1182083, 1452771, 1872923, 2160479
23 P. Benson 2013-05-29 17 1332
  • 5M
4, 6, 12, 46*, 72, 244, 264, 544, 888, 1146, 14826, 24978, 103386, 323668, 458362, 496422, 2141626
25 B. Jaworski 2018-11-01 37 1571
  • 4.45M
3, 9, 11, 17, 23, 35, 39, 75, 105, 107, 155, 161, 215, 225, 335, 635, 651, 687, 1479, 1515, 1953, 2435, 2963, 3671, 5979, 7551, 8091, 9791, 15015, 20897, 26279, 43371, 130407, 587585, 716769, 942563, 1977369
27 PrimeGrid 2017-08-12 66 2376
  • 6.798M
1, 2, 4, 5, 8, 10, 14, 28*, 37, 38, 70, 121, 122, 160, 170, 253, 329, 362, 454, 485, 500, 574, 892, 962, 1213, 1580, 2642, 2708, 4505, 8152, 11858, 13300, 15041, 16118, 16778, 19069, 22769, 29020, 30298, 30377, 35942, 42817, 42869, 62024, 74629, 90449, 91042, 117901, 128594, 143330, 152530, 157898, 175852, 282700, 340682, 444622, 627794, 729314, 777992, 1108214, 1163629, 1253870, 1902689, 3855094, 4542344, 4583717
29 D. Domanov 2017-01-02 10 495
  • 5M
4, 16, 76, 148, 184, 11008, 147316, 347896, 644044, 1478344
31 S. Tjung 2016-01-27 49 2188
  • 2.282M
1, 5, 7, 11, 13, 23, 33, 35, 37, 47, 115, 205, 235, 271, 409, 739, 837, 887, 2189, 3465, 4653, 5073, 8011, 8061, 21957, 24589, 25657, 44653, 50321, 57647, 62083, 78179, 80021, 81655, 111667, 150265, 177089, 196433, 274115, 306751, 311389, 315523, 406105, 421129, 666285, 773227, 1142093, 1611311, 1755317
33 D. Domanov 2017-04-01 65 2675
  • 4.18M
2, 3, 6, 8, 10, 22, 35, 42, 43, 46, 56, 91, 102, 106, 142, 190, 208, 266*, 330, 360, 382, 462, 503, 815, 1038, 1651, 1855, 1858, 1992, 2232, 4462, 4726, 5475, 6702, 9710, 10931, 11503, 20552, 22291, 26575, 35931, 39271, 51326, 57695, 63115, 67182, 109848, 128635, 136971, 173110, 174182, 373446, 585400, 598248, 674050, 773030, 1115902, 1813526, 2118570, 2212971, 2215291, 2499883, 2513872, 2939063, 3242126
35 RPS 1.MBit 2017-04-10 35 1264
  • 2.9M
2, 6, 10, 20, 44, 114, 146, 156, 174, 260, 306, 380, 654, 686, 702, 814, 906, 1196, 1316, 3062, 4116, 9382, 23562, 25742, 32564, 72444, 97550, 112390, 118510, 246732, 252910, 634402, 805222, 839082, 1817486
37 RPS 1.MBit 2017-04-10 10 630
  • 2.9M
1, 2553, 4893, 7897, 14353, 32125, 51477, 78973, 341365 (...) 6660841
39 M. Kwok 2017-09-26 28 1213
  • 4.52M
3, 24, 105, 153, 188, 605, 795, 813, 839, 2135, 2619, 4053, 8333, 15519, 16025, 16505, 30684, 40700, 43683, 52233, 142205, 222345, 225333, 292839, 322613, 747219, 781220, 2251104
41 S. Batalov 2017-01-02 23 1174
  • 4.5M
2, 10, 14, 18, 50, 114, 122, 294, 362, 554, 582, 638, 758, 3334, 6630, 42450, 64218, 89282, 149238, 511718, 1018778, 1059562, 2872058
43 B. Jaworski 2018-04-15 15 633
  • 5.408M
7, 31, 67, 251, 767, 1171, 1643, 25423, 38863, 50867, 60391, 100303, 286171, 399767, 5408183
45
(2)
M. Curtis 2017-07-02 74 3747
  • 2.8M
1, 2, 3, 4, 5, 6, 8, 9, 14, 15, 16, 22, 28, 29, 36, 37, 54, 59, 85, 93, 117, 119, 161, 189, 193, 256, 308, 322, 327, 411, 466, 577, 591, 902, 928, 946, 1162, 1428, 1708, 1724, 2063, 2922, 2951, 3111, 3402, 4024, 4485, 5859, 6124, 8981, 10628, 19283, 23522, 26591, 28914, 33954, 34743, 76367, 103546, 103912, 104452, 125132, 139883, 174102, 249065, 306394, 368553, 528245, 645542, 818648, 1957377, 2205977 (...) 2958002, 3094632
47 RPS 1.MBit 2017-04-10 20 922
  • 2.9M
4, 14, 70, 78, 1374, 1824, 2158, 2654, 4494, 9598, 10068, 11524, 15128, 55408, 87324, 450470, 540494, 695384, 695724, 1025950
49 D. Metcalfe 2018-01-03 39 1839
  • 4.87M
1, 5, 7, 9, 13, 15, 29, 33, 39, 55, 81, 95, 205, 279, 581, 807, 813, 2551, 2565, 3183, 6661, 11989, 16911, 22605, 30799, 39969, 41167, 43421, 54559, 212745, 290631, 332231, 460989, 542945, 691469, 1257295, 3309087, 4360869, 4365175
51 39 1550
  • ?
1, 9, 10, 19, 22, 57, 69, 97, 141, 169, 171, 195, 238, 735, 885, 1287, 1365, 2026, 2211, 2361, 2889, 3159, 3709, 5031, 19066, 33622, 43162, 188517, 194875, 217971, 286965, 331546, 468417, 657705, 832630, 845494, 1026910, 1027635, 1231665
53 23 1368
  • ?
2, 6, 8, 42, 50, 62, 362, 488, 642, 846, 2870, 3042, 5096, 10556, 12642, 17850, 21710, 25230, 30392, 43122, 206970, 582078, 1632590
55 54 2113
  • ?
1, 3, 5, 7, 15, 33, 41, 57, 69, 75, 77, 131, 133, 153, 247, 305, 351, 409, 471, 1251, 1259, 2253, 2411, 2425, 2699, 3221, 4099, 4173, 4291, 4905, 5349, 6723, 7143, 7505, 10539, 10557, 12099, 17373, 23721, 27895, 33801, 35519, 45927, 63589, 73287, 96933, 106659, 218043, 253047, 397941, 651015, 1075711, 1162155, 1406997
57 48 2672
  • ?
1, 2, 4, 5, 8, 10, 20, 22, 25, 26, 32, 44, 62, 77, 158, 317, 500, 713, 1657, 1790, 2761, 2794, 3704, 4174, 6772, 14348, 16132, 16160, 16766, 21097, 29125, 40094, 44824, 49006, 67585, 74650, 94798, 162538, 173585, 239854, 450430, 565994, 707245, 839446, 1098272, 1110980, 1486214, 2103370
59 18 639
  • ?
12, 16, 72, 160, 256, 916, 1216, 1840, 3280, 8140, 10816, 15776, 40256, 72116, 134240, 145532, 358276, 3408416
61 50 2170
  • ?
3, 5, 9, 13, 17, 19, 25, 39, 63, 67, 75, 119, 147, 225, 419, 715, 895, 1025, 1103, 1179, 1345, 1829, 3855, 4159, 4493, 6039, 7799, 9073, 10543, 12883, 23807, 23957, 36163, 44047, 51975, 65573, 79393, 79949, 81987, 86349, 384287, 499175, 762417, 971585, 1124049, 1416365, 1487125, 1654383, 1734983, 2134577
63 57 2807
  • ?
2, 3, 8, 11, 14, 16, 28, 32, 39, 66, 68, 91, 98, 116, 126*, 164, 191, 298, 323, 443, 714, 758, 759, 1059, 1168, 1511, 1792, 2116, 3148, 3836, 4084, 4622, 6164, 9268, 10062, 14623, 15799, 23634, 44198, 53971, 55244, 81519, 99411, 112554, 114906, 123774, 132203, 155998, 218694, 323432, 340463, 610704, 1126551, 1357156, 1535612, 1626259, 1659338
65 39 2034
  • ?
4, 6, 12, 22, 28, 52, 78, 94, 124, 162, 174, 192, 204, 304, 376, 808, 930, 972, 1714, 1776, 2176, 2568, 4392, 4728, 5548, 8046, 12474, 26856, 27156, 45240, 52026, 134598, 179658, 185946, 578512, 647130, 1374574, 1421088, 1505640
67 19 829
  • ?
5, 9, 21, 45, 65, 77, 273, 677, 1049, 1721, 17105, 18645, 27761, 61661, 79773, 403461, 527037, 722805, 2215581
69 V. Diepeveen 2015-02-21 90 3438
  • 3.614M
1, 4, 5, 7, 9, 11, 13, 17, 19, 23, 29, 37, 49, 61, 79, 99, 121, 133, 141, 164, 173, 181, 185, 193, 233, 299, 313, 351, 377, 540, 569, 909, 1057, 1081, 1189, 1679, 2043, 2641, 3471, 3533, 3943, 5607, 9681, 12879, 14513, 15300, 21573, 30895, 32163, 39983, 47167, 47657, 49325, 51881, 64801, 65385, 65723, 66017, 69020, 74111, 76803, 79956, 83761, 84437, 100916, 110617, 165841, 195515, 234305, 234916, 236989, 239019, 352196, 362787, 464843, 580596, 613781, 820237, 831617, 867653, 978209, 1473217, 1566375, 1649423, 2174213, 2410035, 2428251, 2649939, 3097340, 3140225
71 D. Domanov 2015-05-06 8 593
  • 5M
2, 14, 410, 1390, 3770, 5434, 202642, 735802
73 22 800
  • ?
7, 11, 19, 71, 79, 131, 1167, 1191, 6771, 12627, 17947, 20079, 26347, 40327, 41231, 69379, 109587, 193559, 212451, 499391, 783831, 1075107
75 63 3181
  • ?
1, 3, 5, 6, 18, 19, 20, 22, 28, 29, 39, 43, 49, 75, 85, 92, 111, 126, 136, 159, 162, 237, 349, 381, 767, 969, 1247, 1893, 1951, 2363, 2657, 3065, 3090, 3836, 4110, 4342, 5671, 6807, 21945, 24658, 30082, 31811, 54510, 70828, 79292, 80938, 84432, 92235, 113429, 170933, 182433, 196071, 199819, 231580, 306789, 424392, 434323, 631091, 814857, 995721, 2050637, 2130432, 2562382
77 34 1700
  • ?
2, 4, 14, 26, 58, 60, 64, 100, 122, 212, 566, 638, 1214, 2080, 4852, 5356, 5720, 7044, 8320, 8556, 10684, 14584, 39016, 47972, 72008, 217956, 223512, 387680, 441528, 607920, 855770, 1365452, 1390004, 1467554
79 25 1150
  • ?
1, 3, 7, 15, 43, 57, 61, 75, 145, 217, 247, 2803, 3403, 4375, 5113, 9883, 14565, 17397, 65977, 82081, 92517, 214453, 248055, 369535, 969795
81 34 1698
  • ?
3, 5, 11, 17, 21, 27, 81, 101, 107, 327*, 383, 387, 941, 1665, 3515, 4007, 4727, 7137, 16257, 16833, 21243, 24239, 35435, 59925, 91673, 153455, 165341, 183167, 190349, 240743, 253385, 308325, 741917, 1335675
83 52 2056
  • ?
2, 4, 8, 10, 14, 18, 22, 24, 26, 28, 36, 42, 58, 64, 78, 158, 198, 206, 424, 550, 676, 904, 1276, 1374, 1536, 1642, 2124, 2796, 5266, 5318, 8828, 11638, 22968, 35836, 53348, 55808, 79826, 105282, 112418, 129804, 144456, 216954, 624398, 654488, 791926, 851092, 910716, 1192950, 1437882, 1455358, 1461350, 1540750
85 22 921
  • ?
5, 11, 71, 113, 115, 355, 473, 563, 883, 1235, 5735, 9809, 11311, 14491, 25495, 125675, 128459, 147115, 656039, 683573, 1034069, 1395605
87 68 2839
  • ?
1, 2, 8, 9, 10, 12, 22, 29, 32, 50, 57, 69, 81, 122, 138, 200, 296, 514, 656, 682, 778, 881, 1422, 1494, 1857, 3060, 3489, 4106, 5129, 5378, 8096, 8546, 10138, 10941, 13749, 21758, 23554, 24582, 27526, 28581, 29306, 29588, 36101, 36681, 41378, 45689, 55769, 56049, 65676, 77361, 96426, 110189, 128630, 142738, 154352, 155794, 188689, 353734, 360829, 382268, 796341, 942790, 1089098, 1120006, 1332741, 1358189, 1616138, 1852590
89 22 1238
  • ?
4, 8, 12, 24, 48, 52, 64, 84, 96, 1272, 2028, 3224, 4952, 6892, 7372, 16476, 56968, 68632, 185868, 208824, 369628, 1383108
91 49 2374
  • ?
1, 3, 9, 13, 15, 17, 19, 23, 47, 57, 67, 73, 77, 81, 83, 191, 301, 321, 435, 867, 869, 917, 6009, 6051, 8077, 9003, 10355, 10719, 11217, 20197, 22011, 36379, 45373, 53441, 77013, 86329, 89853, 90341, 104783, 169779, 187407, 245989, 313849, 535819, 563469, 633169, 711335, 787173, 1026521
93 43 2149
  • ?
3, 4, 7, 10, 15, 18, 19, 24, 27, 39, 60, 84, 111, 171, 192, 222, 639, 954, 2400, 2587, 4012, 4359, 5250, 6012, 6183, 7344, 10603, 12403, 13215, 29154, 78192, 81294, 103744, 107991, 174412, 176479, 203728, 205158, 251199, 362268, 580482, 903187, 990684
95 27 1490
  • ?
2, 6, 26, 32, 66, 128, 170, 288, 320, 470, 1278, 1296, 1316, 1536, 1608, 13230, 15438, 31268, 42198, 46688, 71636, 140840, 259076, 271590, 790508, 968636, 1543676
97 P. Minovic 2014-10-05 10 829
  • 2.3M
1, 9, 45, 177, 585, 1409, 2617, 3465, 6981, 843205
99 M. Curtis 2015-01-30 57 2773
  • 2M
1, 4, 5, 7, 8, 11, 19, 25, 28, 35, 65, 79, 212, 271, 361, 461, 1237, 1297, 1577, 1747, 1901, 1943, 2741, 3203, 3425, 5069, 6368, 8372, 9761, 12260, 13472, 24032, 26227, 34028, 34492, 54244, 55660, 56056, 60965, 67283, 74576, 118711, 170867, 175921, 269809, 275113, 305803, 358891, 390373, 435301, 586088, 1106989, 1292395, 1461496, 1591984, 1777688 (...) 2070908