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Riesel primes of the form 311•2n-1
Current data
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History
- 2022-06-03: Checked to n = 3000000, NPLB Drive 15, released
- 2018-11-08: Found n = 2544778, Ricky L. Hubbard
- 2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
- 2010-06-26: Checked to n = 2000000, Dmitry Domanov, released
- 2010-03-21: Reserved by Dmitry Domanov, for 1600000<n<2000000
- 2009-07-07: Checked to n = 1600000, Borys Jaworski, released
- 2009-06-30: Checked to n = 1590000, Borys Jaworski
- 2009-06-26: Found n = 1581686, Borys Jaworski
- 2009-05-31: Checked to n = 1570000, Borys Jaworski
- 2009-04-30: Checked to n = 1540000, Borys Jaworski
- 2009-03-18: Checked to n = 1400000, Borys Jaworski
- 2009-01-20: Checked to n = 1160000, Borys Jaworski
- 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
- 2008-09-15: Checked to n = 1000000, Borys Jaworski
- 2008-08-12: Checked to n = 900000, Borys Jaworski
- 2008-07-10: Checked to n = 800000, Borys Jaworski
- 2008-06-09: Checked to n = 700000, Borys Jaworski
- 2008-05-09: Reserved by Borys Jaworski, for 600000<n<1000000
- 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
- 2003-03-21: Found n = 116218, Steven Harvey
