Factor Info
| ID | 645 |
| Size | 138 digits / 456 bits |
| Status | composite |
| Value | 161563317898052617930367977110907049734799821006815720874609884162040284438730872867757519198583703636982255540119795714748294189530577421 |
Factorizations
| Primary | (ID: 9264) 31111499775948353141795434143457487913853238278585940539417 (proven prime) |
| (ID: 9265) 5193041771099502722422864551454295360952618958016998102954814413205235039445013 (proven prime) |
Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.