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Riesel primes of the form 2257•2n-1
Current data
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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
- 2010-03-26: 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
- 2009-08-14: 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
