Riesel primes of the form 2103•2n-1

Current data

k , b : 2103 , 2 Type : 3 Count : 83 Nash : 3935 Max n : 1,310,000 Date : 2015-05-18

3, 4, 6, 7, 8, 10, 12, 22, 23, 28, 40, 43, 51, 54, 56, 82, 107, 108, 152, 195, 210, 214, 228, 238, 262, 291, 316, 370, 431, 466, 472, 491, 520, 594, 894, 1008, 1136, 1372, 1847, 2626, 3040, 3444, 4292, 5468, 5671, 7664, 7883, 8732, 11274, 12202, 12984, 15222, 16002, 20343, 24552, 27804, 30556, 31770, 31948, 48888, 49926, 64698, 86716, 93402, 95526, 101556, 121522, 132198, 161051, 178276, 232992, 234594, 248347, 262912, 312031, 319026, 588480, 607974, 682132, 764046, 943172, 1057854, 1282580

History

• 2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
• 2015-04-20: Checked to n = 1310000, RPS Drive 12
• 2015-03-23: Found n = 1282580, Thomas Ritschel, RPS Drive 12
• 2013-08-30: Found n = 1057854, Lennart Vogel, RPS Drive 12
• 2013-08-30: Checked to n = 1025000, RPS Drive 11, released
• 2013-08-28: Reserved by RPS Drive 12, n ≥ 1025000
• 2012-05-29: Found n = 943172, Larry Soule, RPS Drive 11
• 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
• 2011-10-31: Found n = 764046, Thomas Ritschel, RPS Drive 11
• 2011-09-24: Found n = 682132, Peter Benson, RPS Drive 11
• 2011-09-03: Reserved by RPS Drive 11, for n ≥ 666666
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-09-20: Found n = 588480, Max Dettweiler, NPLB Drive 11
• 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
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
• 2009-06-15: Checked to n = 95000, Thomas Ritschel, released
• 2009-03-31: Reserved by Thomas Ritschel, for 20000 < n < 500000