Primes
Primes
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I've been running the GIMPS prime number search program since mid-1997. I haven't found any of the huge, rare Mersenne prime numbers -- if I had you'd be reading about that instead. But on some of my machines I've been running Yves Gallot's Proth.exe program which searches for primes of specific forms, including form k * 2n + 1 and b2n + 1.
This page lists a history of prime numbers I have found. You can also see my database entry from Chris Caldwell's database.
| Date | Prime | Digits | Rank* | Type | Comments |
|---|---|---|---|---|---|
| 2001-04-26 | 55360232768+1 | 188194 | 12 | Generalized Fermat | Celeron 466 running Proth.exe 6.4 under Wine in Linux; Largest prime discovered so far with Linux |
| 2001-01-30 | 70493016384+1 | 95817 | 38 | Generalized Fermat | PIII-667 running Proth.exe 6.1 under Windows 2000 |
| 2000-09-02 | 21*2191337+1 | 57600 | 97 | Proth | Celeron 433 running Proth.exe 5.4 under Windows 2000 |
| 1999-09-23 | 79*2121822+1 | 36674 | 192 | Proth | PII-300 running Proth.exe 5.4 under Wine in Linux |
* Rank at time of discovery according to Chris Caldwell's Prime Database. This rank will not match the current rank, as larger primes are continually being discovered.