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Riesel primes of the form 239•2n-1
Current data
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History
- 2022-04-10: Checked to n = 8000000, Thomas Ritschel, released
- 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
- 2020-06-22: Checked to n = 7000000, Thomas Ritschel
- 2019-12-17: Checked to n = 6000000, Thomas Ritschel
- 2019-09-28: Checked to n = 5000000, Thomas Ritschel
- 2018-09-17: Found n = 2421404, Thomas Ritschel
- 2018-05-20: Reserved by Thomas Ritschel
- 2014-10-05: Checked to n = 2000000, Predrag Minovic, released
- 2013-07-09: Checked to n = 2000000, Predrag Minovic
- 2013-01-04: Checked to n = 1860000, Predrag Minovic
- 2012-07-02: Checked to n = 1500000, Predrag Minovic
- 2010-06-05: Checked to n = 1330000, Predrag Minovic
- 2010-05-04: Checked to n = 1290000, Predrag Minovic
- 2009-11-03: Checked to n = 1200000, Predrag Minovic
- 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
- 2008-10-19: Checked to n = 1010000, Predrag Minovic
- 2008-10-07: Reserved by Predrag Minovic
- 2008-09-09: Reserved by NPLB Drive 4
- 2006-08-13: Checked to n = 600000, RPS Drive 2, released
- 2006-04-15: Found n = 356300, Larry Soule, RPS Drive 2
- 2006-03-17: Reserved by RPS Drive 2, for n = 210000 - 600000
- 2005-01-10: Checked n = 200000 - 210000, Steven Harvey, released
- 2004-04-29: Reserved by Thomas Masser
- 1998-11-26: Found n = 25780, Wilfrid Keller
