Riesel primes of the form 2041•2n-1

Current data

k , b : 2041 , 2 Type : Low Count : 23 Nash : 927 Max n : 1,100,000 Date : 2015-05-18

17, 23, 65, 113, 203, 207, 327, 1547, 2729, 3963, 6563, 6689, 7979, 28179, 60663, 79463, 141323, 156179, 171425, 203063, 442145, 526919, 530985

History

• 2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
• 2014-12-04: Checked n = 600000 - 666666, Dmitry Domanov
• 2013-12-09: Checked to n = 1100000, Dmitry Domanov
• 2013-11-12: Checked to n = 1070000, Dmitry Domanov
• 2013-10-21: Checked n = 1025000 - 1050000, Dmitry Domanov
• 2013-10-21: Reserved by Dmitry Domanov, for n<=1100000
• 2013-10-11: Checked to n = 700000, David Stevens, released
• 2013-08-30: Checked to n = 1025000, RPS Drive 11, released
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2011-09-03: Reserved by RPS Drive 11, for n ≥ 666666
• 2010-10-14: Checked to n = 700000, David Stevens
• 2010-03-26: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000 - 50000, Karsten Bonath
• 2009-09-28: Checked to n = 587000, David Stevens
• 2009-08-29: Checked to n = 546000, David Stevens
• 2009-08-17: Found n = 530985, David Stevens
• 2009-08-13: Found n = 526919, David Stevens
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-05-07: Checked to n = 500000, David Stevens
• 2009-04-24: Found n = 442145, David Stevens
• 2009-03-19: Checked to n = 200000, David Stevens
• 2009-02-25: Reserved by David Stevens
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2005-04-26: Found n = 203063, Thomas Ritschel