Riesel primes of the form 13236795•2n-1

Current data

k , b : 13236795 , 2 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.

History

• 2022-07-03: Sieve file created: n = 1400000-50000000, Valerie Vonck, released
• 2022-05-29: Checked n = 1300000 - 1400000, Valerie Vonck, results included
• 2021-04-07: Checked n = 1000000 - 1300000, Gary Barnes, double-check, results included
• 2021-04-03: Checked n = 1 - 1000000, Gary Barnes, double-check, results included
• 2021-04-03: Found n = 233152, 240236, 258893, 259747, 266093, 267313, 314563, Gary Barnes, 7 missing primes found
• 2017-12-16: Checked n = 1000000 - 1300000, Valerie Vonck, results included
• 2017-01-29: Found n = 1176214, 1196191, Valerie Vonck
• 2016-06-06: Found n = 1066721, 1067293, Valerie Vonck
• 2016-05-22: Found n = 1051978, Valerie Vonck
• 2012-10-29: Checked n = 817162 - 1000000, Valerie Vonck
• 2012-03-26: Found n = 900284, Valerie Vonck
• 2011-09-19: Found n = 835133, Valerie Vonck
• 2011-08-06: Checked n = 785514 - 817162, Valerie Vonck
• 2011-05-29: Checked n = 701361 - 785514, Valerie Vonck
• 2010-11-23: Checked n = 465798 - 701361, Valerie Vonck
• 2010-03-10: Found n = 609210, Valerie Vonck
• 2010-02-12: Found n = 600493, Valerie Vonck
• 2009-09-21: 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 n = 450000 - 465798, Valerie Vonck
• 2007-11-24: Checked n = 438384 - 450000, Valerie Vonck, results not available
• 2007-10-29: Checked n = 424998 - 438384, Valerie Vonck
• 2007-09-06: Checked n = 411901 - 424998, Valerie Vonck, results not available
• 2007-07-28: Checked n = 402728 - 411901, Valerie Vonck
• 2007-07-09: Checked n = 383452 - 402728, Valerie Vonck
• 2007-05-09: Checked n = 379021 - 383452, Valerie Vonck
• 2007-03-31: Checked n = 375000 - 379021, Valerie Vonck
• 2007-03-10: Checked n = 371496 - 375000, Valerie Vonck
• 2007-01-23: Checked n = 363514 - 371496, Valerie Vonck
• 2006-11-26: Checked n = 354708 - 363514, Valerie Vonck
• 2005-10-06: Checked n = 350000 - 354708, Valerie Vonck
• 2005-09-23: Checked n = 346638 - 350000, Valerie Vonck
• 2005-09-14: Checked n = 322029 - 346638, Valerie Vonck
• 2005-08-25: Reserved by Valerie Vonck from n = 340000
• 2005-03-18: Checked n = 279021 - 322029, Valerie Vonck
• 2005-03-02: Checked n = 250000 - 279021, Valerie Vonck
• 2005-02-23: Checked n = 240000 - 250000, Valerie Vonck
• 2005-02-21: Checked n = 231000 - 240000, Valerie Vonck
• 2005-02-15: Checked n = 220000 - 231000, Valerie Vonck
• 2005-02-08: Checked n = 164000 - 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
• 2005-01-22: Found n = 167188, Valerie Vonck
• 2005-01-22: Reserved by Valerie Vonck for n = 164000 - 500000
• 2005-01-19: Reserved by Valerie Vonck