| Mn | Status | Details | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2208977 | Composite, with 1 known prime factor. Cofactor is composite. | ||||||||||||||||||||||||
| Factored |
| ||||||||||||||||||||||||
| ECM |
Estimated T-Level: 21.9 ⓘ TF below 2^68 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