Riesel primes of the form 28215•2n-1

Reserved! This sequence is currently reserved by: Alexander Jones

Current data

k , b : 28215 , 2 Type : 315 Count : 93 Nash : 4880 Max n : 375,000 Date : 2021-06-01 Reserved : Alexander JonesAlexander Jones/Reserved

2, 4, 8, 9, 11, 20, 24, 26, 31, 33, 35, 42, 47, 58, 62, 66, 77, 88, 101, 124, 148, 192, 200, 210, 232, 250, 304, 317, 328, 466, 599, 605, 623, 701, 729, 761, 940, 966, 1195, 1433, 1746, 1769, 1844, 1885, 2051, 2075, 2176, 2231, 2384, 2707, 3422, 3512, 3748, 3930, 4579, 4768, 6072, 6582, 8405, 8442, 9120, 10165, 11189, 12293, 12510, 12522, 12757, 13594, 13864, 14531, 17856, 24378, 24568, 38370, 42086, 44946, 45288, 53215, 69491, 80413, 95596, 97661, 118538, 135985, 144600, 192342, 306018, 402143, 513716, 685840, 685912, 834509, 969997

History

• 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
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2011-10-03: Checked n = 400000  -  1000000, RPS Drive 9, released
• 2011-06-22: Found n = 969997, Peter Benson
• 2010-11-12: Found n = 834509, Peter Benson
• 2010-07-16: Found n = 685912, Peter Benson
• 2010-07-16: Found n = 685840, Peter Benson
• 2009-07-25: Found n = 513716, David Metcalfe
• 2009-05-12: Reserved by RPS Drive 9
• 2009-05-11: Found n = 402143, Predrag Minovic