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Difference between revisions of "Riesel prime 2 21885"
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{{Riesel prime | {{Riesel prime | ||
|Rk=21885 | |Rk=21885 | ||
+ | |Rb=2 | ||
|RCount=90 | |RCount=90 | ||
|RNash=4334 | |RNash=4334 |
Revision as of 23:30, 16 July 2021
Reserved! This sequence is currently reserved by: Alexander Jones |
Current data
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Notes
- ↑ Sophie Germain n=2, Twin n=2
- ↑ Sophie Germain n=3, Twin n=3
- ↑ Sophie Germain n=4
- ↑ Sophie Germain n=8, Twin n=8
- ↑ Sophie Germain n=9, Twin n=9
- ↑ Twin n=42
- ↑ Twin n=99
History
- 2021-06-01: Checked to n = 375000, Alexander Jones
- 2021-01-13: Checked to n = 350000, Alexander Jones
- 2020-10-01: Checked to n = 325000, Alexander Jones
- 2020-06-17: Checked to n = 300000, Alexander Jones
- 2020-03-17: Reserved by Alexander Jones
- 2011-11-23: Checked to n = 1007, Gary Barnes
- 2011-10-03: Checked n = 400000 - 1000000, RPS Drive 9, released
- 2011-07-27: Found n = 988449, Peter Benson
- 2010-09-27: Found n = 775829, Peter Benson
- 2010-01-03: Found n = 591013, David Metcalfe
- 2009-09-07: Found n = 537009, David Metcalfe
- 2009-07-25: Found n = 513697, David Metcalfe
- 2009-05-12: Reserved by RPS Drive 9