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Difference between revisions of "Cullen prime 2"
(remove already normalized Riesel references (consistency)) |
(check to n=26M, exact date unknown) |
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{{Cullen prime | {{Cullen prime | ||
|CuBase=2 | |CuBase=2 | ||
| − | |CuMaxn= | + | |CuMaxn=26000000 |
| − | |CuDate= | + | |CuDate=2025 |
|CuReserved=PrimeGrid Cullen Prime Search | |CuReserved=PrimeGrid Cullen Prime Search | ||
|CuNlist= | |CuNlist= | ||
| Line 24: | Line 24: | ||
}} | }} | ||
==History== | ==History== | ||
| + | {{HistC|2024-10-25|1-100000|Gary Barnes|1058845}}, double-check, released | ||
{{HistC|2021-09-11|21000000|PrimeGrid Cullen Prime Search}} | {{HistC|2021-09-11|21000000|PrimeGrid Cullen Prime Search}} | ||
{{HistF|2009-08-04|6679881|Magnus Bergman,PrimeGrid Cullen Prime Search}} ([https://www.primegrid.com/download/cullen-6679881.pdf Official announcement]) | {{HistF|2009-08-04|6679881|Magnus Bergman,PrimeGrid Cullen Prime Search}} ([https://www.primegrid.com/download/cullen-6679881.pdf Official announcement]) | ||
Latest revision as of 02:09, 5 March 2025
| Reserved! This sequence is currently reserved by: PrimeGrid Cullen Prime Search |
Current data
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Remarks : |
The sequence A005849 in OEIS Current status at PrimeGrid |
Notes
History
- 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
- 2021-09-11: Checked to n = 21000000, PrimeGrid Cullen Prime Search
- 2009-08-04: Found n = 6679881, Magnus Bergman, PrimeGrid Cullen Prime Search (Official announcement)
- 2009-04-20: Found n = 6328548, Dennis R. Gesker, PrimeGrid Cullen Prime Search (Official announcement)
- 2005-08-25: Found n = 1354828, Mark Rodenkirch
- 1998-09-30: Found n = 481899, Masakatu Morii
- 1998-07-31: Found n = 361275, Darren Smith
- 1998-03-08: Found n = 262419, Darren Smith
- 1997-05: Found n = 90825, Jeffrey Young
- 1997-05: Found n = 59656, Jeffrey Young
- 1997-05-01: Found n = 32469, Masakatu Morii
- 1997-05-01: Found n = 32292, Masakatu Morii
- 1984: Found n = 18496, Wilfrid Keller
- 1984: Found n = 6611, Wilfrid Keller
- 1984: Found n = 5795, Wilfrid Keller
- 1984: Found n = 4713, Wilfrid Keller
- 1957: Found n = 141, Raphael M. Robinson
- 1905: Found n = 1, James Cullen
