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Riesel primes of the form 321•2n-1
| Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1. |
Current data
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Notes
- ↑ Sophie Germain n=1, Twin n=1
- ↑ Sophie Germain n=5, Twin n=5
- ↑ Sophie Germain n=14
- ↑ Sophie Germain n=21
- ↑ Sophie Germain n=30
History
- 2022-05-25: Found n = 2946654, Gary Barnes
- 2018-10-06: Found n = 2496594, Stuart Mullage
- 2018-04-08: Found n = 2378535, Ricky L. Hubbard
- 2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
- 2013-02-02: Checked to n = 2000000, NPLB Mini Drive 3, released
- 2011-07-19: Found n = 1371846, Karsten Bonath
- 2010-05-18: Reserved by NPLB Mini Drive 3, for 1000000<n<1300000
- 2001-07-08: Found n = 1363671, Karsten Bonath
- 2009-09-11: Checked to n = 1000000, NPLB Mini Drive 1, released
- 2009-07-12: Found n = 942046, Karsten Bonath
- 2009-05-14: Reserved by NPLB Mini Drive 1, for 600000<n<970000
- 2009-03-08: Found n = 682493, Gary Barnes
- 2009-03-05: Found n = 666797, Gary Barnes
- 2009-03-02: Found n = 650818, Gary Barnes
- 2009-02-26: Found n = 628734, Gary Barnes
- 2008-12-30: Reserved by NPLB Mini Drive 1, for 600000<n<950000
- 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
- 2008-06-30: 514041 confirmed, Glenn C. Kaiser
- 2008-03-27: Found n = 410721, Carlos Eduardo Pinho
- 2008-03-05: 278837 confirmed, James P. Burt
- 2008-03-09: Found n = 374514, David James
- 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
- 2007-11-01: Found n = 514041, Peter Benson
- 2007-03-20: Found n = 278837, Peter Benson
- 2005-04-02: Found n = 248421, Jun Tajima
- 2004-08-05: Found n = 172514, Steven Harvey
- 2004-08-05: Found n = 171686, Steven Harvey
- 2002-03-15: Found n = 141285, Marcin Lipinski
- 2002-03-14: Found n = 139974, Marcin Lipinski
