Riesel primes of the form 185•2n-1

Reserved! This sequence is currently part of Multi Reservation 5: CRUS Liskovets-Gallot.

Current data

k , b : 185 , 2 Count : 36 Nash : 2161 Max n : 5,000,000 Date : 2023-07-11 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

2, 6, 10, 18, 26, 40, 46, 78, 230, 542, 1286, 1550, 1728, 2138, 2226, 2686, 3742, 5002, 12730, 42936, 64290, 86602, 86686, 109346, 113966, 133346, 211876, 229850, 238230, 294662, 391322, 459352, 612412, 1234730, 2127966, 2264906

History

• 2022-04-10: Found n = 2264906, Thomas Ritschel, RPS Megabit Drive 2
• 2019-08-18: Checked to n = 2200000, RPS Megabit Drive 2
• 2019-04-15: Found n = 2127966, David Metcalfe, RPS Megabit Drive 2
• 2011-07-20: Found n = 1234730, David Metcalfe, RPS Megabit Drive 2
• 2011-04-28: Reserved by RPS Megabit Drive 2 for n > 1000000
• 2009-07-30: Reserved by Borys Jaworski from n=1000000
• 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
• 2008-10-21: Checked to n = 1000000, David Metcalfe
• 2008-09-11: Reserved by David Metcalfe
• 2008-09-11: Found n = 612412, Carlos Eduardo Pinho, NPLB Drive 4
• 2008-09-09: Reserved by NPLB Drive 4
• 2006-05-21: Found n = 459352, Predrag Minovic
• 2006-04-26: Found n = 391322, Predrag Minovic
• 2006-04-03: Found n = 294662, Larry Soule
• 2006-03-21: Found n = 238230, David Metcalfe
• 2006-03-29: Found n = 229850, Alexandre de Pereyra