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Riesel primes of the form 609•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=11
- ↑ Sophie Germain n=12
- ↑ Sophie Germain n=15
- ↑ Twin n=19
- ↑ Sophie Germain n=56
- ↑ Woodall 609•8192609-1
History
- 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
- 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
- 2023-01-14: Found n = 1961889, Max Dettweiler
- 2021-12-18: Found n = 1647623, Gary Barnes, originally found by Max Dettweiler
- 2013-11-05: Found n = 1265279, Gary Barnes
- 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
- 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
- 2010-12-02: Found n = 845063, Brian Lody
- 2010-11-26: Found n = 835576, Brian Lody
- 2010-06-27: Found n = 754413, Gary Barnes
- 2009-05-22: Found n = 683212, David James
- 2009-05-02: Found n = 644181, Vaughan Davies
- 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
- 2008-12-21: Found n = 596887, Gary Barnes
- 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
- 2008-06-26: Found n = 492403, James P. Burt
- 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
- 2004-12-10: Found n = 197219, Steven Harvey
- 2004-09-07: Found n = 180912, Steven Harvey
- 2004-02-26: Found n = 167553, Thomas Masser
- 2004-02-25: Found n = 163777, Thomas Masser
- 2003-07-28: Found n = 122120, Steven Harvey
- 2003-04-08: Found n = 119505, Steven Harvey
