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Difference between revisions of "Riesel prime 2 391581"
(new k=391581) |
(n=4M) |
||
| Line 2: | Line 2: | ||
|Rk=391581 | |Rk=391581 | ||
|Rb=2 | |Rb=2 | ||
| − | |RCount= | + | |RCount=42 |
|RNash=2267 | |RNash=2267 | ||
| − | |RMaxn= | + | |RMaxn=4000000 |
| − | |RDate=2024-06 | + | |RDate=2024-07-06 |
|RReserved= | |RReserved= | ||
|RMultiRes= | |RMultiRes= | ||
| Line 44: | Line 44: | ||
234725 | 234725 | ||
258493 | 258493 | ||
| + | 572861 | ||
| + | 952054 | ||
| + | 1189658 | ||
| + | 1210958 | ||
| + | 1852685 | ||
| + | 2217203;138276 | ||
| + | 2284871;138277 | ||
|RRemarks=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.<br>See additional info at [[Amdahl Six]] and [http://www.isthe.com/chongo/tech/math/prime/p391581_216193.html Landon Noll's page]. | |RRemarks=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.<br>See additional info at [[Amdahl Six]] and [http://www.isthe.com/chongo/tech/math/prime/p391581_216193.html Landon Noll's page]. | ||
|RSieve= | |RSieve= | ||
}} | }} | ||
==History== | ==History== | ||
| + | {{HistC|2024-07-06|200000-4000000|Ryan Propper|661457}}, double-check {{Vn}}=200000-300000 | ||
| + | {{HistF|2024-07-06|2284871|Ryan Propper|661457}} | ||
| + | {{HistF|2024-07-06|2217203|Ryan Propper|661457}} | ||
{{HistC|2024-06-25|300000|Gary Barnes|660470}} | {{HistC|2024-06-25|300000|Gary Barnes|660470}} | ||
{{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 20:42, 6 July 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 to n = 300000, Gary Barnes
- 1989-08-06: Found n = 216193, John Brown, Landon Curt Noll, Bodo Parady, Gene Smith, Joel Smith, Sergio Zarantonello, Amdahl Six
