Riesel primes of the form 173985•2n-1

Current data

k , b : 173985 , 2 Type : 315 Count : 54 Nash : 4164 Max n : 50,000 Date : 2023-01-21

1, 2, 5, 12, 23, 25, 41, 45, 49, 51, 56, 88, 146, 203, 218, 252, 263, 393, 628, 668, 681, 696, 882, 993, 1069, 1360, 2057, 2211, 2221, 3098, 3732, 3939, 5486, 6269, 6521, 6591, 7258, 7477, 8828, 8865, 9160, 9887, 13775, 15093, 15711, 16052, 16648, 17817, 20439, 20696, 27921, 48298, 48388, 481857

History

• 2023-01-21: Checked to n = 50000, Alexander Jones
• 2011-04-29: Found n = 481857, Lennart Vogel, Twin Prime Search 480000