| Mn | Details | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2278681 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 | |||||||||||||||||||||||||||
| Factored |
| |||||||||||||||||||||||||||
| ECM |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. | |||||||||||||||||||||||||||
| PRP Cofactor |
| |||||||||||||||||||||||||||
| History |
| |||||||||||||||||||||||||||
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996
GIMPS
Finding World Record Primes Since 1996