Riesel primes of the form 115•2n-1

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

Current data

k , b : 115 , 2 Count : 33 Nash : 1954 Max n : 5,000,000 Date : 2023-07-11 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

1, 3, 11, 13, 19, 21, 31, 49, 59, 69, 73, 115, 129, 397, 597, 623, 769, 1131, 4581, 6229, 13477, 20995, 24541, 31089, 48535, 57375, 87151, 98543, 267443, 357829, 830103, 1141719, 1524183

History

• 2019-08-18: Checked to n = 2200000, RPS Megabit Drive 2
• 2013-10-10: Found n = 1524183, Predrag Minovic, RPS Megabit Drive 2
• 2011-06-20: Found n = 1141719, 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
• 2008-09-25: Found n = 830103, David Metcalfe
• 2008-09-11: Reserved by David Metcalfe
• 2008-09-09: Reserved by NPLB Drive 4
• 2006-04-17: Found n = 357829, Larry Soule
• 2006-03-29: Found n = 267443, Alexandre de Pereyra