Riesel primes of the form 1023•2n-1

Current data

k , b : 1023 , 2 Type : 3 Count : 42 Nash : 2162 Max n : 1,900,000 Date : 2014-10-22

2, 8, 10, 23, 31, 35, 38, 44, 56, 70, 242, 287, 380, 479, 488, 740, 890, 1579, 1619, 1772, 2036, 2074, 3518, 5744, 6571, 8887, 9776, 10639, 18182, 51286, 52195, 62698, 166268, 191528, 205183, 258755, 276283, 795454, 811532, 1159630, 1492030, 1649882

Remarks :

See also Williams 1023•1024n-1

History

• 2014-10-22: Checked to n = 1900000, Peter Benson
• 2014-05-15: Checked to n = 1700000, Peter Benson
• 2014-04-03: Found n = 1649882, Peter Benson
• 2014-01-26: Checked to n = 1570000, Peter Benson
• 2013-12-07: Found n = 1492030, Peter Benson
• 2013-08-12: Checked to n = 1400000, Peter Benson
• 2012-09-09: Checked to n = 1300000, Peter Benson
• 2012-04-03: Checked to n = 1200000, Peter Benson
• 2012-01-29: Found n = 1159630, Peter Benson
• 2011-09-11: Checked to n = 1100000, Peter Benson
• 2011-04-17: Checked to n = 1000000, Peter Benson
• 2011-03-12: Checked to n = 980000, Peter Benson
• 2011-02-04: Checked to n = 960000, Peter Benson
• 2011-01-02: Checked to n = 940000, Peter Benson
• 2010-11-20: Checked to n = 920000, Peter Benson
• 2010-10-09: Checked to n = 900000, Peter Benson
• 2010-08-15: Checked to n = 880000, Peter Benson
• 2010-06-27: Checked to n = 860000, Peter Benson
• 2010-05-21: Checked to n = 840000, Peter Benson
• 2010-04-10: Checked to n = 820000, Peter Benson
• 2010-03-28: Found n = 811532, Peter Benson
• 2010-03-09: Checked to n = 800000, Peter Benson
• 2010-03-02: Found n = 795454, Peter Benson
• 2010-02-08: Checked to n = 780000, Peter Benson
• 2010-02-02: Checked to n = 770000, Peter Benson
• 2009-02-24: Checked to n = 479264, NPLB Drive 9D, released
• 2009-02-16: Checked to n = 350000, NPLB Drive 9C, released
• 2009-01-25: Checked to n = 200000, NPLB Drive 9A, released
• 2009-01-21: Reserved by NPLB Drive 9D, for 350000 ≤ n ≤ 479264
• 2009-01-21: Reserved by NPLB Drive 9C, for 200000 ≤ n ≤ 350000
• 2009-01-05: Reserved by NPLB Drive 9A, for 50000 ≤ n ≤ 200000
• 2008-08-20: Checked n = 35000 - 50000, Karsten Bonath
• 2008-07-29: Checked n = 10000 - 35000, Karsten Bonath
• 2007-07-06: Checked to n = 10000, Gary Barnes
• 2005-08-09: Found n = 276283, Peter Benson
• 2005-05-19: Found n = 258755, Peter Benson
• 2004-12-12: Found n = 205183, Peter Benson
• 2004-11-06: Found n = 191528, Peter Benson