Riesel primes of the form 63•2n-1

Current data

k , b : 63 , 2 Type : 3 Count : 57 Nash : 2807 Max n : 5,000,000 Date : 2021-03-21

2, 3, 8, 11, 14, 16, 28, 32, 39, 66, 68, 91, 98, 116, 126, 164, 191, 298, 323, 443, 714, 758, 759, 1059, 1168, 1511, 1792, 2116, 3148, 3836, 4084, 4622, 6164, 9268, 10062, 14623, 15799, 23634, 44198, 53971, 55244, 81519, 99411, 112554, 114906, 123774, 132203, 155998, 218694, 323432, 340463, 610704, 1126551, 1357156, 1535612, 1626259, 1659338

Remarks :

See also Williams 63•64n-1

History

• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2013-11-18: Checked to n = 5000000, Peter Benson
• 2013-06-29: Checked to n = 4000000, Peter Benson
• 2013-05-06: Checked to n = 3000000, Peter Benson
• 2013-04-02: Reserved by Peter Benson from n=1700000
• 2011-05-09: Checked to n = 1700000, Peter Benson, released
• 2011-05-02: Checked to n = 1672000, Peter Benson
• 2011-05-01: Checked to n = 1653000, Peter Benson
• 2011-04-29: Found n = 1626259, Peter Benson
• 2011-04-28: Found n = 1535612, Peter Benson
• 2011-04-25: Found n = 1357156, Peter Benson
• 2011-04-21: Reserved by Peter Benson from n=1130000
• 2010-05-04: Checked to n = 1130000, Predrag Minovic
• 2010-04-13: Checked to n = 1100000, Predrag Minovic
• 2010-04-11: Checked to n = 1090000, Predrag Minovic
• 2009-07-26: Checked n = 1120000 - 1130000, Predrag Minovic, See range done at RPS other completed ranges.
• 2009-01-09: Checked n = 950000 - 986617, 1652072 - 1672192, Peter Benson
• 2008-07-12: Found n = 1659338, Peter Benson
• 2008-07-07: Checked to n = 1000000, Gary Barnes released
• 2008-05-23: Found n = 1126551, Predrag Minovic
• 2008-02-01: Checked to n = 705000, Gary Barnes
• 2008-01-14: Checked to n = 618000, Gary Barnes
• 2008-01-14: Found n = 610704, Gary Barnes
• 2008-01-10: Checked to n = 600000, Gary Barnes
• 2006-03-08: Checked to n = 500000, Predrag Minovic
• 2005-12-25: Found n = 340463, Predrag Minovic
• 2005-12-21: Checked to n = 323600, Predrag Minovic
• 2005-12-21: Found n = 323432, Predrag Minovic
• 2005-12-05: Reserved by Predrag Minovic from n=200000
• 2004-05-26: Reserved by Mark Anderson for n ≤ 200000
• 2002-07-11: Found n = 218694, Peter Grobstich
• 2002-06-11: Found n = 132203, Peter Grobstich
• 2002-06-10: Found n = 123774, Peter Grobstich
• 2002-06-10: Found n = 114906, Peter Grobstich
• 2002-06-10: Found n = 112554, Peter Grobstich
• 2002-06-06: Found n = 155998, Peter Grobstich
• 1989: Found n = 44198, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown