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Riesel primes of the form 663•2n-1
Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18. |
Current data
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Notes
- ↑ Sophie Germain n=3
- ↑ Sophie Germain n=14
- ↑ Twin n=24
- ↑ Sophie Germain n=70
History
- 2022-11-26: Found n = 1847319, Gary Barnes, originally found by Max Dettweiler
- 2021-10-19: Found n = 1632948, Gary Barnes
- 2014-11-03: Found n = 1368094, Göran Schmidt
- 2012-02-18: Found n = 1009098, Lennart Vogel
- 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
- 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
- 2010-10-04: Found n = 762428, Gary Barnes
- 2009-05-23: Found n = 684374, David James
- 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
- 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
- 2008-06-05: Found n = 473420, Bruce E. Slade
- 2008-05-08: Found n = 425478, Bruce E. Slade
- 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
- 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
- 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
- 2006-01-27: Found n = 259524, Steven Harvey
- 2006-01-25: Found n = 244299, Steven Harvey
- 2003-05-18: Found n = 147247, Dennis Okon
- 2003-05-18: Found n = 140627, Dennis Okon
- 2003-05-18: Found n = 137471, Dennis Okon
- 2002-01-13: Found n = 92358, Kimmo Herranen