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Riesel primes of the form 229•2n-1
Current data
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History
- 2024-04-23: Reservation dropped, Michael Curtis
- 2023-07-17: Checked to n = 3000000, Michael Curtis
- 2021-10-22: Found n = 2331017, Michael Curtis
- 2020-03-13: Restarted, Michael Curtis
- 2017-12-18: Found n = 2581111, Michael Curtis
- 2016-01-03: Checked to n = 2000000, Michael Curtis
- 2015-06-23: Found n = 1670843, Michael Curtis
- 2015-04-01: Checked to n = 1640000, Michael Curtis
- 2014-12-24: Checked to n = 1610000, Michael Curtis
- 2014-10-05: Checked to n = 1447000, Michael Curtis
- 2013-06-11: Checked to n = 1400000, Michael Curtis
- 2013-04-07: Checked to n = 1360000, Michael Curtis
- 2013-02-02: Reserved by Michael Curtis from n=1300000
- 2012-05-14: Checked to n = 1300000, James P. Burt, released
- 2011-12-31: Checked to n = 1100000, James P. Burt
- 2011-12-10: Reserved by James P. Burt from n=1000000
- 2009-07-30: Reserved by Borys Jaworski from n=1000000
- 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
- 2008-10-21: Checked to n = 1000000, Predrag Minovic
- 2008-10-08: Found n = 969073, David Metcalfe
- 2008-09-19: Found n = 715459, David Metcalfe
- 2008-09-12: Reserved by Predrag Minovic
- 2008-09-09: Reserved by NPLB Drive 4
- 2006-08-13: Checked to n = 600000, RPS Drive 2, released
- 2006-07-25: Found n = 586795, Predrag Minovic, RPS Drive 2
- 2006-07-07: Found n = 560259, David Metcalfe, RPS Drive 2
- 2006-03-18: 220147 confirmed, Alexandre de Pereyra, RPS Drive 2
- 2006-03-17: Reserved by RPS Drive 2, for n = 210000 - 600000
- 2005-08-07: Found n = 220147, Peter Benson
- 2005-01-12: Checked to n = 210000, Steven Harvey
- 2005-01-11: Found n = 207863, Steven Harvey
- 2004-07-19: Checked to n = 200000, Steven Harvey
- 2004-07-12: Reserved by Steven Harvey for n ≤ 200000