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Riesel primes of the form 293•2n-1
Current data
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History
- 2015-04-01: Checked to n = 2000000, Thomas Ritschel, released
- 2015-03-24: Reserved by Thomas Ritschel for 1850000 < n < 2000000
- 2014-10-05: Checked to n = 1850000, Predrag Minovic, released
- 2014-01-29: Found n = 1775450, Predrag Minovic
- 2013-09-08: Checked to n = 1650000, Predrag Minovic
- 2013-07-09: Checked to n = 1620000, Predrag Minovic
- 2013-02-01: Reserved by Predrag Minovic for 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 for n >= 1000000
- 2009-07-30: Reserved by Borys Jaworski for n >= 1000000
- 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
- 2008-09-09: Reserved by NPLB Drive 4
- 2006-09-28: Found n = 517242, Predrag Minovic
- 2006-09-28: Found n = 421330, John Schlesser
- 2005-04-11: Found n = 243698, James S. Griffin
- 2005-01-22: Found n = 213346, Steven Harvey
- 2002-01-14: Found n = 196258, Janusz Szmidt
- 2000-05-17: Found n = 63484, Phil Carmody