Riesel primes of the form 323•2n-1

Reserved! This sequence is currently part of Multi Reservation 26: NPLB Drive 19.

Current data

k , b : 323 , 2 Count : 21 Nash : 1258 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 14, 34, 56, 112, 634, 1070, 1120, 3430, 6560, 11296, 12370, 18256, 55526, 61664, 106724, 183190, 215192, 239530, 486322

History

• 2023-03-07: Reserved by NPLB Drive 19, for 3000000<n<4000000
• 2022-06-03: Checked to n = 3000000, NPLB Drive 15, released
• 2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
• 2012-03-03: Checked to n = 2000000, Lennat Vogel, released
• 2012-03-01: Checked to n = 1800000, Lennat Vogel
• 2012-02-27: Checked to n = 1200000, Lennat Vogel
• 2011-12-31: Reserved by Lennart Vogel
• 2011-12-22: None, Gary Barnes, released from Raf Vaes
• 2010-12-27: Checked to n = 1100000, Raf Vaes, results included
• 2010-12-16: Checked to n = 1050000, Raf Vaes
• 2010-12-09: Reserved by Raf Vaes, for 1000000<n<1400000
• 2010-12-07: Reserved by Raf Vaes, for 1000000<n<1020000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-09-08: Checked to n = 1000000, Gary Barnes, released
• 2008-09-06: Checked to n = 986000, Gary Barnes
• 2008-09-03: Checked to n = 979000, Gary Barnes
• 2008-07-04: Checked to n = 959000, Gary Barnes
• 2008-06-17: Checked to n = 921000, Gary Barnes
• 2008-06-01: Checked to n = 900000, Gary Barnes
• 2008-05-18: Checked to n = 765100, Gary Barnes
• 2008-05-09: Checked to n = 727200, Gary Barnes
• 2008-05-02: Checked to n = 692000, Gary Barnes
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2007-09-30: Found n = 486322, James S. Griffin
• 2005-07-08: Found n = 239530, Valerie Vonck
• 2005-01-14: Found n = 215192, Steven Harvey
• 2004-10-03: Found n = 183190, Steven Harvey
• 2002-07-03: Found n = 106724, Kimmo Herranen