Riesel primes of the form 295•2n-1

Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 295 , 2 Count : 28 Nash : 1266 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

5, 23, 35, 53, 59, 65, 113, 149, 205, 275, 365, 503, 1019, 2105, 2473, 2999, 4813, 8873, 10985, 16495, 32065, 47689, 52727, 63413, 177695, 374035, 389903, 1832129

History

• 2024-05-05: Reserved by NPLB K300 Drive 1 for n > 2200000
• 2022-03-09: Checked to n = 2222000, RPS Megabit Drive 3
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2014-07-06: Found n = 1832129, Serge Batalov, RPS Megabit Drive 3
• 2014-06-03: Reserved by RPS Megabit Drive 3 for n > 1400000
• 2011-02-01: Checked to n = 1400000, RPS Drive 6, released
• 2008-06-22: Reserved by RPS Drive 6, for n > 600000
• 2006-12-16: Checked to n = 600000, RPS Drive 4, released
• 2006-08-18: Found n = 389903, David Metcalfe, RPS Drive 4
• 2006-08-15: Found n = 374035, David Metcalfe, RPS Drive 4
• 2006-07-28: Reserved by RPS Drive 4, for n = 260000 - 600000
• 2000-07-10: Found n = 177695, Janusz Szmidt
• 1999-07-14: Found n = 63413, Janusz Szmidt
• 1999-07-12: Found n = 52727, Janusz Szmidt
• 1999-06-21: Found n = 32065, Janusz Szmidt