Riesel primes of the form 16887•2n-1

Current data

k , b : 16887 , 2 Type : 3 Count : 87 Nash : 4520 Max n : 1,000,000 Date : 2021-07-20

1, 2, 4, 5, 6, 8, 12, 17, 20, 26, 45, 48, 52, 65, 78, 96, 105, 128, 137, 152, 162, 165, 166, 172, 181, 190, 206, 222, 398, 436, 441, 448, 478, 521, 592, 618, 1178, 1245, 1678, 1857, 2558, 2600, 2836, 3260, 3482, 3534, 3578, 3600, 5140, 5214, 5561, 5644, 6048, 6661, 6842, 7253, 7521, 7560, 10721, 12560, 13313, 15092, 19596, 22510, 23926, 24230, 28486, 28528, 34404, 37142, 65222, 74076, 90793, 118536, 188562, 196184, 200654, 213017, 264401, 321085, 581360, 602538, 666018, 718650, 722078, 945468, 978362

History

• 2021-07-20: Checked to n = 400000, Alexander Jones, released
• 2021-06-01: Checked to n = 375000, Alexander Jones
• 2021-01-13: Checked to n = 350000, Alexander Jones
• 2020-10-01: Checked to n = 325000, Alexander Jones
• 2020-06-17: Checked to n = 300000, Alexander Jones
• 2020-03-17: Reserved by Alexander Jones
• 2018-06-23: Checked n = 400000  -  1000000, RPS Drive 9, released
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2011-07-12: Found n = 978362, Peter Benson, RPS Drive 9
• 2011-04-09: Found n = 945468, Peter Benson, RPS Drive 9
• 2010-08-21: Found n = 722078, Peter Benson, RPS Drive 9
• 2010-08-17: Found n = 718650, David Metcalfe, RPS Drive 9
• 2010-06-27: Found n = 666018, Peter Benson, RPS Drive 9
• 2010-01-15: Found n = 602538, David Metcalfe, RPS Drive 9
• 2009-12-12: Found n = 581360, David Metcalfe, RPS Drive 9
• 2009-05-12: Reserved by RPS Drive 9 for n > 400000