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Difference between revisions of "Riesel prime 2 9"
(add Williams prime remark & links to primes) |
(corrections on Woodall primes) |
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Line 15: | Line 15: | ||
21;C:{{NWi|PM|8|7}} | 21;C:{{NWi|PM|8|7}} | ||
43;T:T | 43;T:T | ||
− | 63;T:T;C:{{NWo|128|9}} | + | 63;T:T;C:{{NWo|128|9}}, {{NWi|PM|8|21}} |
− | 99;C:{{NWo|2048|9}} | + | 99;C:{{NWo|2048|9}}, {{NWi|PM|8|33}} |
109;C:{{NWo|64|18}} | 109;C:{{NWo|64|18}} | ||
159;C:{{NWi|PM|8|53}} | 159;C:{{NWi|PM|8|53}} |
Revision as of 16:20, 25 September 2024
Reserved! This sequence is currently reserved by: Dmitry Domanov |
Current data
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Remarks : |
The sequence A002236 in OEIS See also Williams 9•8n-1 |
Notes
- ↑ Twin n=1
- ↑ Twin n=3, Williams 9•81-1
- ↑ Twin n=7
- ↑ Williams 9•85-1
- ↑ Williams 9•87-1
- ↑ Twin n=43
- ↑ Twin n=63, Woodall 9•1289-1, Williams 9•821-1
- ↑ Woodall 9•20489-1, Williams 9•833-1
- ↑ Woodall 18•6418-1
- ↑ Williams 9•853-1
- ↑ Twin n=211
- ↑ Williams 9•8103-1
- ↑ Woodall 18•52428818-1
- ↑ Williams 9•8313-1
- ↑ Williams 9•8517-1
- ↑ Williams 9•81863-1
- ↑ Williams 9•82669-1
- ↑ Williams 9•83849-1
- ↑ Williams 9•84165-1
- ↑ Williams 9•827805-1
- ↑ Williams 9•834353-1
- ↑ Williams 9•891953-1
- ↑ Williams 9•8128081-1
- ↑ Williams 9•8336759-1
- ↑ Williams 9•8473285-1
- ↑ Williams 9•81561185-1
History
- 2024-08-10: Checked to n = 7800000, Dmitry Domanov
- 2023-06-04: Found n = 7479919, Dmitry Domanov
- 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
- 2020-10-29: Checked to n = 6500000, Dmitry Domanov
- 2020-08-23: Checked to n = 6350000, Dmitry Domanov
- 2020-03-11: Checked to n = 6000000, Dmitry Domanov
- 2015-11-03: Checked to n = 6000000, Dmitry Domanov
- 2015-05-06: Checked to n = 5700000, Dmitry Domanov
- 2014-12-24: Checked to n = 5220000, Dmitry Domanov
- 2014-09-29: Reserved by Dmitry Domanov for n=5000000-6000000
- 2013-01-07: Checked to n = 5000000, Peter Benson
- 2012-12-24: Found n = 4683555, Peter Benson
- 2012-11-17: Found n = 4005979, Peter Benson
- 2012-11-17: Reserved by Peter Benson from n=4000000
- 2012-03-17: Checked to n = 4000000, Peter Benson
- 2011-11-27: Found n = 3259381, Peter Benson
- 2011-11-01: Reserved by Peter Benson from n=3000000
- 2011-06-02: Checked to n = 3000000, Peter Benson
- 2011-04-05: Reserved by Peter Benson
- 2010-12-23: Checked n = 2105192? - 2106000, Predrag Minovic
- 2010-12-23: Checked n = 1840000 - 1968000, Larry Soule
- 2010-10-31: Checked to n = 1840000, Predrag Minovic
- 2010-09-05: Checked to n = 1814000, Predrag Minovic
- 2010-07-18: Checked to n = 1610000, Predrag Minovic
- 2010-06-05: Checked to n = 1570000, Predrag Minovic
- 2010-04-11: Checked to n = 1540000, Predrag Minovic
- 2010-02-11: Checked to n = 1530000, Predrag Minovic
- 2009-12-05: Checked to n = 1520000, Predrag Minovic
- 2009-11-24: Found n = 1419855, Predrag Minovic
- 2009-11-20: Checked to n = 1415000, Predrag Minovic
- 2009-11-03: Checked n = 1350000 - 1375000, 1400000 - 1414000, Adam Sutton
- 2009-11-03: Checked n = 1221088? - 1350000, 1375000 - 1400000, Predrag Minovic
- 2009-01-18: Checked n = 3499107 - 3563355, Peter Benson
- 2009-01-10: Checked n = 1330000? - 1430000?, Adam Sutton
- 2009-01-09: Checked n = 1430023 - 1454791, 1455171 - 1518147, 1652067 - 1810159, 1967643 - 2105191, 2366487 - 2406243, Peter Benson
- 2009-01-09: Checked n = 950000 - 1067108, 1140015 - 1221087, Peter Benson
- 2008-08-27: Found n = 2060941, Peter Benson
- 2008-04-12: Found n = 1481821, Peter Benson
- 2008-02-29: Checked n = 850000 - 1200000, Adam Sutton
- 2008-02-01: Reserved by Adam Sutton for n>1000000
- 2007-11-15: Found n = 1010277, Peter Benson
- 2007-04-07: Checked to n = 850000, Jeffrey Sax
- 2005-02-03: Found n = 828709, Jeffrey Sax
- 2005-01-16: Checked to n = 801000, Jeffrey Sax
- 2004-11-28: Checked to n = 744000, Jeffrey Sax
- 2004-07-24: Found n = 503893, Jeffrey Sax
- 2004-07-14: Found n = 484975, Jeffrey Sax
- 2004-06-13: Found n = 384243, Jeffrey Sax
- 2004-05-23: Found n = 275859, Jeffrey Sax
- 2000-04-03: Found n = 184999, Ingo Buechel, Wilfrid Keller
- 1999-02-14: Found n = 103059, Ingo Buechel, Wilfrid Keller
- 1999-01-15: Found n = 83415, Ingo Buechel, Wilfrid Keller
- 1998-06-16: Found n = 23647, Wilfrid Keller
- 1998-06-16: Found n = 22555, Wilfrid Keller
- 1989: Found n = 35647, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
- 1981: Found n = 12495, Anders Björn, Hans Riesel
- 1980: Found n = 8007, Jurgen Buhl, Walter Borho
- 1980: Found n = 7939, Jurgen Buhl, Walter Borho
- 1980: Found n = 5893, Jurgen Buhl, Walter Borho
- 1980: Found n = 5815, Jurgen Buhl, Walter Borho
- 1980: Found n = 5589, Jurgen Buhl, Walter Borho
- 1980: Found n = 3349, Jurgen Buhl, Walter Borho
- 1979: Found n = 11547, Jurgen Buhl, Walter Borho