Riesel primes of the form 561973•2n-1

Current data

k , b : 561973 , 2 Count : 32 Nash : 1333 Max n : 1,000,000 Date : 2024-06-13

7, 15, 23, 27, 43, 79, 95, 107, 135, 191, 315, 539, 543, 551, 683, 851, 915, 939, 1519, 1915, 2639, 7063, 8055, 25839, 39495, 43855, 57031, 58011, 71143, 406887, 504859, 639231

History

• 2024-06-13: Checked n = 500000 - 1000000, Gary Barnes, double-check n = 500000 - 505000 & n = 700000 - 800000, released
• 2024-06-13: Reservation dropped, (Harklo73)
• 2022-07-02: Checked n = 700000 - 800000, (Harklo73)
• 2022-05-19: Found n = 639231, (Harklo73)
• 2022-03-25: Checked n = 1 - 500000, Gary Barnes, double-check, results included
• 2022-02-16: Reserved by (Harklo73) for n = 505000 - 605000
• 2022-02-16: Checked n = 1 - 505000, (Harklo73)
• 2022-02-16: Found n = 504859, (Harklo73)
• 2022-02-12: Found n = 406887, (Harklo73)