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
• 2006-08-13: Checked to n = 600000, RPS Drive 2, released
• 2006-04-17: Found n = 357829, Larry Soule, RPS Drive 2
• 2006-03-29: Found n = 267443, Alexandre de Pereyra, RPS Drive 2
• 2006-03-17: Reserved by RPS Drive 2, for n = 210000 - 600000
• 2005-01-13: Checked to n = 210000, Steven Harvey, released
• 2005-01-10: Reserved by Steven Harvey
• 2004-07-12: Checked to n = 200000, Steven Harvey, released
• 2004-07-06: Reserved by Steven Harvey