Riesel primes of the form 257•2n-1

Reserved! This sequence is currently part of Multi Reservation 6: CRUS Liskovets-Gallot.

Current data

k , b : 257 , 2 Count : 37 Nash : 1867 Max n : 5,000,000 Date : 2022-03-04 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

4, 6, 10, 16, 24, 60, 66, 82, 184, 256, 324, 424, 632, 756, 814, 872, 1114, 1702, 3282, 3420, 3862, 3864, 4162, 4510, 7030, 8410, 47974, 59236, 61084, 78034, 133980, 194312, 286832, 541402, 1064062, 1658254, 2108554

History

• 2021-04-12: Found n = 2108554, Gary Barnes
• 2014-06-03: Found n = 1658254, Serge Batalov
• 2014-05-30: Reserved by RPS 3rd Megabit Drive for n > 1400000
• 2008-12-17: Found n = 1064062, Even Stokkedalen
• 2006-10-17: Found n = 541402, Predrag Minovic
• 2006-07-13: Found n = 286832, Tony Galvan
• 2004-02-03: Found n = 194312, Marcin Lipinski
• 2003-09-30: Found n = 133980, Marcin Lipinski
• 1998-12-11: Found n = 47974, Carlos B. Rivera F.