| Mn | Details | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fermat F15 | No factors below 268 TF target 244 | ||||||||||||||||||||||||||||||
| ECM |
Estimated T-Level: 63.8 ⓘ TF below 2^207 is very unlikely to find new factors due to ECM effort. | ||||||||||||||||||||||||||||||
| History |
| ||||||||||||||||||||||||||||||
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996
GIMPS
Finding World Record Primes Since 1996