Riesel primes of the form 31955•2n-1

Current data

k , b : 31955 , 2 Upload me! Count : 36 Nash : 1748 Max n : 600,000 Date : 2024-04-07

2, 4, 22, 26, 94, 98, 142, 166, 208, 214, 422, 686, 830, 880, 1006, 2128, 2338, 4114, 4390, 5070, 6280, 6690, 8694, 8860, 14278, 39046, 40762, 101922, 104746, 119306, 126126, 172288, 189640, 339730, 422788, 599920

History

• 2024-04-07: Checked to n = 600000, Alexander Jones, released
• 2023-06-14: Checked to n = 350000, Alexander Jones
• 2023-03-22: Checked to n = 300000, Alexander Jones
• 2023-03-19: Sieve file created: n = 100000-600000, Alexander Jones, yoyo@home
• 2021-11-07: Checked to n = 100000, Alexander Jones
• 2021-11-07: Reserved by Alexander Jones
• 2020-08-27: Checked to n = 50000, Alexander Jones
• 2010-05-04: Found n = 599920, Peter Benson