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Difference between revisions of "Riesel prime 2 27"
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{{Riesel prime | {{Riesel prime | ||
|Rk=27 | |Rk=27 | ||
| − | |RCount= | + | |Rb=2 |
| + | |RCount=68 | ||
|RNash=2376 | |RNash=2376 | ||
| − | |RMaxn= | + | |RMaxn=10000000 |
| − | |RDate= | + | |RDate=2022-03-21 |
| − | |RReserved= | + | |RReserved= |
| + | |RMultiRes= | ||
|RNlist= | |RNlist= | ||
1;T:S | 1;T:S | ||
| Line 74: | Line 76: | ||
4583717;118388 | 4583717;118388 | ||
8342438;131654 | 8342438;131654 | ||
| − | |RRemarks= | + | 10902757;133717 |
| + | |RRemarks=The {{OEIS|l|A050539}} | ||
}} | }} | ||
==History== | ==History== | ||
| − | {{HistF|2021-02-01|8342438|Andrew M. Farrow,PrimeGrid}} | + | {{HistC|2022-03-21|10000000|PrimeGrid 27121 Prime Search|P#9850#154888}}, released |
| − | {{HistF|2014-08-22|4583717|Hans Joachim Böhm,PrimeGrid}}, ([http://www.primegrid.com/download/27121-4583717.pdf Official announcement]) | + | {{HistF|2022-03-07|10902757|Ryan Propper}} |
| − | {{HistF|2014-07-18|4542344|James Scott Brown,PrimeGrid}}, ([http://www.primegrid.com/download/27121-4542344.pdf Official announcement]) | + | {{HistC|2021-03-21|1-1000000|Gary Barnes|574248}}, double check, results included |
| − | {{HistF|2012-02-28|3855094|Pietari Snow,PrimeGrid}}, ([http://www.primegrid.com/download/27121-3855094.pdf Official announcement]) | + | {{HistF|2021-02-01|8342438|Andrew M. Farrow,PrimeGrid 27121 Prime Search}}, ([https://www.primegrid.com/download/27121-8342438.pdf Official announcement]) |
| − | {{HistF|2009-12-10|1902689|Peter Kaiser}} | + | {{HistF|2014-08-22|4583717|Hans Joachim Böhm,PrimeGrid 27121 Prime Search}}, ([http://www.primegrid.com/download/27121-4583717.pdf Official announcement]) |
| + | {{HistF|2014-07-18|4542344|James Scott Brown,PrimeGrid 27121 Prime Search}}, ([http://www.primegrid.com/download/27121-4542344.pdf Official announcement]) | ||
| + | {{HistF|2012-02-28|3855094|Pietari Snow,PrimeGrid 27121 Prime Search}}, ([http://www.primegrid.com/download/27121-3855094.pdf Official announcement]) | ||
| + | {{HistF|2009-12-10|1902689|Peter Kaiser,PrimeGrid 27121 Prime Search,12121 Search}} | ||
| + | {{HistR|2009-02-13|PrimeGrid 27121 Prime Search}} | ||
{{HistC|2009-01-10|1614000|Justin Van Klein???|157929}} | {{HistC|2009-01-10|1614000|Justin Van Klein???|157929}} | ||
| − | {{HistF|2008-06-29|1253870|Frank Clowes}} | + | {{HistF|2008-06-29|1253870|Frank Clowes,12121 Search}} |
| − | {{HistF|2008-03-23|1108214|Arnold Padro}} | + | {{HistF|2008-03-23|1108214|Arnold Padro,12121 Search}} |
{{HistF|2008-03-17|1163629|Peter Benson}} | {{HistF|2008-03-17|1163629|Peter Benson}} | ||
{{HistC|2007-12-02|1019000|Justin Van Klein???|119717}} | {{HistC|2007-12-02|1019000|Justin Van Klein???|119717}} | ||
| − | {{HistF|2005-11-18|777992|James P. Burt}} | + | {{HistF|2005-11-18|777992|James P. Burt,12121 Search}} |
| − | {{HistF|2005-07-14|729314|William W. Mikrut}} | + | {{HistF|2005-07-14|729314|William W. Mikrut,12121 Search}} |
| − | {{HistF|2005-03-31|627794|Chris Chatfield}} | + | {{HistF|2005-03-31|627794|Chris Chatfield,12121 Search}} |
{{HistF|2004-07-12|444622|Steven Harvey}} | {{HistF|2004-07-12|444622|Steven Harvey}} | ||
{{HistF|2004-05-31|340682|Steven Harvey}} | {{HistF|2004-05-31|340682|Steven Harvey}} | ||
Latest revision as of 18:17, 1 October 2024
Current data
|
|
Remarks : |
The sequence A050539 in OEIS |
Notes
- ↑ Sophie Germain n=1
- ↑ Twin n=2
- ↑ Sophie Germain n=4, Twin n=4
- ↑ Near Woodall 27•228-1
- ↑ Sophie Germain n=37
- ↑ Sophie Germain n=121
History
- 2022-03-21: Checked to n = 10000000, PrimeGrid 27121 Prime Search, released
- 2022-03-07: Found n = 10902757, Ryan Propper
- 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
- 2021-02-01: Found n = 8342438, Andrew M. Farrow, PrimeGrid 27121 Prime Search, (Official announcement)
- 2014-08-22: Found n = 4583717, Hans Joachim Böhm, PrimeGrid 27121 Prime Search, (Official announcement)
- 2014-07-18: Found n = 4542344, James Scott Brown, PrimeGrid 27121 Prime Search, (Official announcement)
- 2012-02-28: Found n = 3855094, Pietari Snow, PrimeGrid 27121 Prime Search, (Official announcement)
- 2009-12-10: Found n = 1902689, Peter Kaiser, PrimeGrid 27121 Prime Search, 12121 Search
- 2009-02-13: Reserved by PrimeGrid 27121 Prime Search
- 2009-01-10: Checked to n = 1614000, Justin Van Klein???
- 2008-06-29: Found n = 1253870, Frank Clowes, 12121 Search
- 2008-03-23: Found n = 1108214, Arnold Padro, 12121 Search
- 2008-03-17: Found n = 1163629, Peter Benson
- 2007-12-02: Checked to n = 1019000, Justin Van Klein???
- 2005-11-18: Found n = 777992, James P. Burt, 12121 Search
- 2005-07-14: Found n = 729314, William W. Mikrut, 12121 Search
- 2005-03-31: Found n = 627794, Chris Chatfield, 12121 Search
- 2004-07-12: Found n = 444622, Steven Harvey
- 2004-05-31: Found n = 340682, Steven Harvey
- 2003-06-22: Found n = 175852, Stephane Roth
- 2002-09-07: Found n = 157898, Stephane Roth
- 2002-07-10: Found n = 152530, Stephane Roth
- 2002-04-24: Found n = 143330, Stephane Roth
- 2001-08-05: Found n = 128594, Stephane Roth
- 2001-04-08: Found n = 91042, Stephane Roth
- 2001-04-05: Found n = 90449, Stephane Roth
- 2001-02-12: Found n = 74629, Stephane Roth
- 2001-04-14: Found n = 62024, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
- 2000-05-19: Found n = 42869, Phil Carmody
- 2000-05-19: Found n = 42817, Phil Carmody
- 1999-10-15: Found n = 35942, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
- 1998-08-23: Found n = 30377, Wilfrid Keller
- 1998-08-23: Found n = 30298, Wilfrid Keller
- 1998-08-23: Found n = 29020, Wilfrid Keller
- 1998-08-08: Found n = 22769, Wilfrid Keller
- 1989: Found n = 19069, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
- 1989: Found n = 13300, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
- 1989: Found n = 8152, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
