Riesel primes of the form 2115•2n-1

Current data

k , b : 2115 , 2 Type : 315 Count : 55 Nash : 2972 Max n : 1,560,000 Date : 2020-03-13

1, 5, 7, 8, 14, 19, 29, 44, 50, 91, 104, 106, 107, 116, 158, 163, 167, 173, 194, 226, 247, 278, 283, 334, 337, 379, 586, 677, 775, 1039, 1349, 2015, 2063, 4021, 4115, 5426, 6149, 8594, 11837, 12008, 14168, 17420, 17696, 21857, 21997, 46019, 48923, 57130, 77696, 404209, 405043, 607390, 680936, 1626565, 1631867

History

• 2020-03-13: Checked to n = 1560000, Michael Curtis
• 2017-06-20: Checked to n = 1560000, Michael Curtis
• 2015-08-09: Found n = 1631867, Michael Curtis
• 2015-08-06: Found n = 1626565, Michael Curtis
• 2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
• 2015-04-05: Checked to n = 1330000, Michael Curtis
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2010-11-11: Checked to n = 600000, Steven Tjung
• 2011-10-31: Checked to n = 700000, RPS Drive 11, released
• 2011-09-21: Found n = 680936, Peter Benson, RPS Drive 11
• 2011-09-03: Reserved by RPS Drive 11, for n ≥ 666666
• 2010-03-26: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2008-09-28: Found n = 405043, Steven Tjung
• 2008-09-28: Found n = 404209, Steven Tjung
• 2008-09-28: Checked to n = 400000, Steven Tjung
• 2008-02-02: Checked to n = 360000, Steven Tjung
• 2008-01-03: Checked to n = 280000, Michael Curtis
• 2007-12-18: Checked to n = 240000, Michael Curtis
• 2007-08-07: Checked n = 10000 - 166000, Michael Curtis
• 2007-07-04: Checked to n = 160000, Michael Curtis
• 2007-07-04: Reserved by Michael Curtis