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Riesel primes of the form 2257•2ⁿ-1

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Revision as of 22:17, 17 July 2024 by Gd barnes (talk | contribs) (correct history)

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Current data

`k` , `b` :	2257 , 2
Type :	Low
Count :	8
Nash :	501
Max `n` :	1,025,000
Date :	2015-05-18

1, 5, 1297, 5345, 11393, 20333, 44513, 66893

History

2015-05-18: Checked n = 600000 - 700000, Karsten Bonath
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
2010-11-19: Checked to n = 600000, NPLB Drive 11, released
2010-10-19: 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
2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
2007-10-24: Found n = 1297, Jens Kruse Andersen

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