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Riesel primes of the form 291•2n-1
Current data
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Notes
- ↑ S.G. n=29
- ↑ Near Woodall 291•2290-1
- ↑ Twin n=1553
- ↑ Woodall 291•524288291-1
History
- 2013-04-12: Checked to n = 2000000, Thomas Ritschel, released
- 2013-04-04: Found n = 1907541, Michael Curtis
- 2013-03-20: Found n = 1705173, Thomas Ritschel
- 2013-03-15: Found n = 1534413, Thomas Ritschel
- 2013-03-10: Reserved by Thomas Ritschel from n=1300000
- 2012-05-14: Checked to n = 1300000, James P. Burt, released
- 2012-05-07: Found n = 1257405, 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
- 2008-06-19: Found n = 996371, David Metcalfe
- 2008-04-03: Found n = 934097, David Metcalfe
- 2007-12-05: Found n = 832410, David Metcalfe
- 2007-11-23: Found n = 810347, Karsten Bonath
- 2007-03-14: Found n = 565917, David Metcalfe
- 2007-02-04: Found n = 531347, David Metcalfe
- 2006-12-03: Found n = 389225, David Metcalfe
- 2006-12-04: Found n = 386430, Thomas Ritschel
- 2006-11-30: Found n = 372342, Larry Soule
- 2006-11-27: Found n = 313433, J. Craig Brunson
- 2006-11-15: Found n = 291705, David Metcalfe
- 2005-03-20: Found n = 236117, James S. Griffin
- 2005-01-22: Found n = 220562, Steven Harvey
- 2005-01-11: Found n = 201494, Steven Harvey
- 2000-11-22: Found n = 152942, Janusz Szmidt
- 2000-05-17: Found n = 63477, Phil Carmody