Riesel primes of the form 11217•2n-1

Current data

k , b : 11217 , 2 Type : 3 Count : 52 Nash : 3279 Max n : 500,000 Date : 2022-09-26

1, 2, 4, 6, 13, 26, 44, 50, 52, 68, 70, 82, 118, 142, 242, 313, 406, 409, 432, 594, 728, 762, 838, 1105, 1226, 2134, 2413, 2605, 2760, 6682, 10104, 10725, 11090, 11616, 13082, 14938, 22082, 24693, 26486, 33596, 35434, 49156, 52764, 72242, 72756, 98254, 139232, 293258, 353222, 382105, 427374, 487364

History

• 2022-09-26: Checked to n = 500000, Alexander Jones, released
• 2021-11-11: Sieve file created: n = 250000–500000, Alexander Jones, yoyo@home
• 2021-07-25: Reserved by Alexander Jones
• 2021-07-25: Checked to n = 250000, Predrag Kurtovic
• 2021-04-30: Checked to n = 150000, Alexander Jones
• 2021-04-10: Checked to n = 100000, Alexander Jones
• 2020-10-13: Checked to n = 50000, Alexander Jones
• 2011-11-23: Checked to n = 20000, Thomas Ritschel
• 2011-06-09: Found n = 487364, Lennart Vogel, Twin Prime Search 480000