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Difference between revisions of "Riesel prime 2 391581"
(n=4M) |
(n-range standards) |
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==History== | ==History== | ||
| − | {{HistC|2024-07-06|200000-4000000|Ryan Propper|661457}}, double-check {{ | + | {{HistC|2024-07-06|200000-4000000|Ryan Propper|661457}}, double-check {{Rn|200000|300000}} |
{{HistF|2024-07-06|2284871|Ryan Propper|661457}} | {{HistF|2024-07-06|2284871|Ryan Propper|661457}} | ||
{{HistF|2024-07-06|2217203|Ryan Propper|661457}} | {{HistF|2024-07-06|2217203|Ryan Propper|661457}} | ||
| − | {{HistC|2024-06-25|300000|Gary Barnes|660470}} | + | {{HistC|2024-06-25|1-300000|Gary Barnes|660470}}, released |
{{HistF|1989-08-06|216193|John Brown,Landon Curt Noll,Bodo Parady,Gene Smith,Joel Smith,Sergio Zarantonello,Amdahl Six}} | {{HistF|1989-08-06|216193|John Brown,Landon Curt Noll,Bodo Parady,Gene Smith,Joel Smith,Sergio Zarantonello,Amdahl Six}} | ||
Latest revision as of 06:43, 27 October 2024
Current data
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Remarks : |
391581*2^216193-1 was the largest known prime from 1989-08-06 to 1992-02-19 and the only largest non-Mersenne prime since 1951. See additional info at Amdahl Six and Landon Noll's page. |
Notes
History
- 2024-07-06: Checked n = 200000 - 4000000, Ryan Propper, double-check n = 200000 - 300000
- 2024-07-06: Found n = 2284871, Ryan Propper
- 2024-07-06: Found n = 2217203, Ryan Propper
- 2024-06-25: Checked n = 1 - 300000, Gary Barnes, released
- 1989-08-06: Found n = 216193, John Brown, Landon Curt Noll, Bodo Parady, Gene Smith, Joel Smith, Sergio Zarantonello, Amdahl Six
