Riesel prime 2 28215

Current data

k , b : 28215 , 2 Type : 315 Count : 94 Nash : 4880 Max n : 1,000,000 Date : 2021-07-20

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, 396925, 402143, 513716, 685840, 685912, 834509, 969997

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 for n ≤ 400,000
• 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
• 2008-07-23: Checked to n = 50000, David Harrison