Riesel primes of the form 1025•2n-1

Current data

k , b : 1025 , 2 Count : 54 Nash : 2550 Max n : 1,900,000 Date : 2014-10-22

2, 6, 8, 10, 38, 58, 88, 98, 102, 116, 160, 186, 192, 212, 278, 386, 826, 978, 1110, 1226, 1616, 3116, 3390, 3472, 5992, 10250, 10816, 10972, 16066, 23560, 30792, 35640, 46416, 48026, 56622, 64438, 74840, 81900, 105880, 123196, 163216, 204206, 208826, 216842, 227318, 288242, 304976, 322006, 460038, 592058, 928128, 952432, 1016086, 1285388

Remarks :

See also Williams 1025•1024n-1

History

• 2014-10-22: Checked to n = 1900000, Peter Benson
• 2014-05-15: Checked to n = 1700000, Peter Benson
• 2014-01-26: Checked to n = 1570000, Peter Benson
• 2013-08-12: Checked to n = 1400000, Peter Benson
• 2012-09-09: Checked to n = 1300000, Peter Benson
• 2012-07-28: Found n = 1285388, Peter Benson
• 2012-04-03: Checked to n = 1200000, Peter Benson
• 2011-09-11: Checked to n = 1100000, Peter Benson
• 2011-05-20: Found n = 1016086, 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
• 2011-01-18: Found n = 952432, Peter Benson
• 2011-01-02: Checked to n = 940000, Peter Benson
• 2010-12-06: Found n = 928128, 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
• 2010-03-09: Checked to n = 800000, Peter Benson
• 2010-02-08: Checked to n = 780000, Peter Benson
• 2010-02-02: Checked to n = 770000, Peter Benson
• 2009-03-01: Found n = 592058, 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
• 2008-01-26: Found n = 460038, Peter Benson
• 2007-07-06: Checked to n = 10000, Gary Barnes
• 2006-05-11: Found n = 322006, Peter Benson
• 2006-03-07: Found n = 304976, Peter Benson
• 2005-10-06: Found n = 288242, Peter Benson
• 2005-02-10: Found n = 227318, Peter Benson
• 2005-01-10: Found n = 216842, Peter Benson
• 2004-12-20: Found n = 208826, Peter Benson
• 2004-12-10: Found n = 204206, Peter Benson