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Riesel primes of the form 2181•2n-1
Current data
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Notes
History
- 2023-03-14: Checked n = 1 - 666666, Alexander Jones, double check
- 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
- 2011-10-25: Found n = 750875, Peter Benson, RPS Drive 11
- 2011-09-23: Found n = 727935, Peter Benson, RPS Drive 11
- 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
- 2009-08-13: 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
- 2009-06-15: Checked to n = 95000, Thomas Ritschel, released
- 2009-03-31: Reserved by Thomas Ritschel, for 20000 < n < 500000
- 2008-01-19: Found n = 37890, Jean Penné, CRUS Liskovets-Gallot
