Riesel primes of the form 13236795•2n-1

Current data

k , b : 13236795 , 2 Upload me! Type : 31521452805 Count : 113 Nash : 6509 Max n : 1,400,000 Date : 2022-07-03

1, 4, 6, 8, 11, 12, 28, 32, 42, 44, 48, 55, 59, 61, 64, 79, 80, 81, 84, 118, 129, 153, 166, 183, 184, 192, 204, 222, 224, 226, 263, 407, 408, 484, 973, 1105, 1205, 1285, 1472, 1530, 1724, 1753, 1776, 2005, 2141, 2358, 2417, 2429, 2480, 3400, 3420, 3801, 4396, 5198, 6997, 8194, 8987, 10758, 10935, 11170, 11341, 11378, 11933, 12523, 14468, 15980, 16428, 16747, 17530, 19418, 19974, 21425, 22907, 28755, 29461, 31162, 31925, 34461, 55656, 61030, 65173, 67959, 75807, 78515, 84900, 84958, 88075, 104635, 115637, 117359, 167188, 199020, 199516, 215582, 233152, 240236, 258893, 259747, 266093, 267313, 314563, 485854, 512891, 559033, 600493, 609210, 835133, 900284, 1051978, 1066721, 1067293, 1176214, 1196191

Remarks :

More information in the MersenneForum see here and here. Sieve for 1400000≤n≤2000000 with Pmax=270T, 75355 candidates

History

• 2022-07-03: Sieve file created: n = 1400000-50000000, Valerie Vonck, released
• 2022-05-29: Checked to n = 1400000, Valerie Vonck, results for n=1300000-1400000 included
• 2021-04-07: Checked to n = 1300000, Gary Barnes, double-check, results for n=1000000-1300000 included
• 2021-04-03: Checked to n = 1000000, Gary Barnes, double-check, 7 missing primes found, results for n<=1000000 included
• 2021-04-03: Found n = 314563, Gary Barnes
• 2021-04-03: Found n = 267313, Gary Barnes
• 2021-04-03: Found n = 266093, Gary Barnes
• 2021-04-03: Found n = 259747, Gary Barnes
• 2021-04-03: Found n = 258893, Gary Barnes
• 2021-04-03: Found n = 240236, Gary Barnes
• 2021-04-03: Found n = 233152, Gary Barnes
• 2017-12-16: Checked to n = 1300000, Valerie Vonck, results for n=1000000-1300000 included
• 2017-01-29: Found n = 1196191, Valerie Vonck
• 2017-01-29: Found n = 1176214, Valerie Vonck
• 2016-06-06: Found n = 1067293, Valerie Vonck
• 2016-06-06: Found n = 1066721, Valerie Vonck
• 2016-05-22: Found n = 1051978, Valerie Vonck
• 2012-03-26: Found n = 900284, Valerie Vonck
• 2011-09-19: Found n = 835133, Valerie Vonck
• 2011-08-06: Checked to n = 817162, Valerie Vonck
• 2011-05-29: Checked to n = 785514, Valerie Vonck
• 2010-11-23: Checked to n = 701361, Valerie Vonck
• 2010-03-10: Found n = 609210, Valerie Vonck
• 2010-02-12: Found n = 600493, Valerie Vonck
• 2009-09-20: Found n = 559033, Valerie Vonck
• 2009-06-08: Found n = 512891, Valerie Vonck
• 2009-01-12: Found n = 485854, Valerie Vonck
• 2008-12-21: Checked to n = 465798, Valerie Vonck
• 2007-11-24: Checked to n = 450000, Valerie Vonck, resultfile unavailable
• 2007-10-29: Checked to n = 438384, Valerie Vonck
• 2007-09-06: Checked to n = 424998, Valerie Vonck, results available
• 2007-07-28: Checked to n = 411901, Valerie Vonck
• 2007-07-09: Checked to n = 402728, Valerie Vonck
• 2007-05-09: Checked to n = 383452, Valerie Vonck
• 2007-03-31: Checked to n = 379021, Valerie Vonck
• 2007-03-10: Checked to n = 375000, Valerie Vonck
• 2007-01-23: Checked to n = 371496, Valerie Vonck
• 2006-11-26: Checked to n = 363514, Valerie Vonck
• 2005-10-06: Checked to n = 354708, Valerie Vonck
• 2005-09-23: Checked to n = 350000, Valerie Vonck
• 2005-09-14: Checked to n = 346638, Valerie Vonck
• 2005-08-25: Reserved by Valerie Vonck from n>=340000
• 2005-03-18: Checked to n = 322029, Valerie Vonck
• 2005-03-02: Checked to n = 279021, Valerie Vonck
• 2005-02-23: Checked to n = 250000, Valerie Vonck
• 2005-02-21: Checked to n = 240000, Valerie Vonck
• 2005-02-15: Checked to n = 231000, Valerie Vonck
• 2005-02-08: Checked to n = 220000, Valerie Vonck
• 2005-02-06: Found n = 215582, Valerie Vonck
• 2005-01-31: Found n = 199516, Valerie Vonck
• 2005-01-31: Found n = 199020, Valerie Vonck
• 2005-01-31: Found n = 167188, Valerie Vonck