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Riesel primes of the form 241•2n-1
Current data
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History
- 2019-03-04: Checked to n = 4000000, Thomas Ritschel, released
- 2019-01-08: Found n = 3815727, Thomas Ritschel
- 2018-10-10: Found n = 2857313, Thomas Ritschel
- 2018-09-12: Found n = 2522801, Thomas Ritschel
- 2018-08-13: Found n = 2135279, Thomas Ritschel
- 2018-06-18: Reserved by Thomas Ritschel, from n=2000000
- 2013-03-01: Checked to n = 2000000, Peter Benson, released
- 2013-02-24: Found n = 1398869, Peter Benson
- 2013-02-24: Reserved by Peter Benson from n=1300000
- 2012-05-14: Checked to n = 1300000, James P. Burt, released
- 2012-04-05: Found n = 1208307, James P. Burt
- 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
- 2008-09-09: Checked n = 600000 - 607000, Michael Kwok
- 2008-09-09: Reserved by NPLB Drive 4
- 2008-08-30: Reserved by Michael Kwok
- 2006-09-18: Found n = 497679, Predrag Minovic
- 2006-08-22: Found n = 407709, David Metcalfe
- 2006-08-09: Found n = 336197, Thomas Ritschel