Riesel primes of the form 363•2n-1

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

Current data

k , b : 363 , 2 Type : 3 Count : 58 Nash : 3194 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 3, 4, 8, 11, 12, 14, 19, 20, 26, 28, 50, 72, 79, 88, 91, 160, 256, 286, 298, 332, 344, 468, 492, 739, 931, 1322, 1664, 2003, 2428, 2708, 3484, 3571, 3631, 3996, 8182, 8760, 13364, 17028, 27623, 35834, 46179, 48136, 51998, 75012, 140223, 209768, 232994, 250966, 284859, 290278, 348040, 383088, 476748, 612291, 1513706, 1547344, 2088182

History

• 2023-03-07: Reserved by NPLB Drive 19, for 3000000<n<4000000
• 2023-03-07: Checked to n = 3000000, NPLB Drive 16, released
• 2022-07-21: Found n = 2088182, Oliver Kruse
• 2022-06-03: Reserved by NPLB Drive 16, for 2000000<n<3000000
• 2014-08-20: Checked to n = 2000000, NPLB Mini Drive 5, released
• 2014-04-29: Found n = 1547344, Kai Inouye
• 2014-02-23: Found n = 1513706, Ian M. Gunn
• 2013-08-17: Reserved by NPLB Mini Drive 5 from n=1300000 (Port 7000)
• 2013-02-03: Checked to n = 1300000, Ian M. Gunn, released
• 2012-12-29: Reserved by Ian M. Gunn, to n=2000000
• 2010-10-20: None, Vincent Gautier, released
• 2010-05-19: Reserved by Vincent Gautier, for 1000000<n<1100000
• 2009-08-12: Reserved by NPLB Mini Drive 4, for 900000<n<1000000
• 2009-06-18: Reserved by NPLB Mini Drive 4, for 800000<n<900000
• 2009-05-29: Reserved by NPLB Mini Drive 4, for 700000<n<800000
• 2009-05-23: Checked to n = 700000, Gary Barnes, released
• 2009-05-22: Checked to n = 697000, Gary Barnes
• 2009-05-20: Checked to n = 690000, Gary Barnes
• 2009-05-12: Checked to n = 676000, Gary Barnes
• 2009-05-09: Checked to n = 670000, Gary Barnes
• 2009-05-05: Checked to n = 658000, Gary Barnes
• 2009-05-01: Checked to n = 650000, Gary Barnes
• 2009-04-27: Checked to n = 640000, Gary Barnes
• 2009-04-15: Reserved by Gary Barnes, for 620000<n<700000
• 2009-04-13: Checked to n = 620000, Karsten Bonath, released
• 2009-04-08: Found n = 612291, Karsten Bonath
• 2009-03-15: Reserved by Karsten Bonath, for 600000<n<620000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-03-07: Found n = 348040, Chris Chatfield
• 2008-03-06: 290278 confirmed, James P. Burt
• 2008-03-06: Found n = 284859, James P. Burt
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2006-02-05: Found n = 476748, Peter O'braian
• 2005-06-22: Found n = 383088, Peter O'braian
• 2005-04-25: Found n = 348040, Peter O'braian
• 2005-04-12: Found n = 290278, Peter O'braian
• 2005-02-27: Found n = 250966, Peter O'braian
• 2005-02-27: Found n = 232994, Peter O'braian
• 2005-02-07: Found n = 209768, Peter O'braian
• 2001-07-08: Found n = 75012, Dale Andrews
• 1999-09-26: Found n = 51998, Tadashi Taura