Factor Info
| ID | 138912 |
| Size | 70 digits / 230 bits |
| Status | composite |
| Value | 1538724678430859586753759253142816719469250675623302047715923179776651 |
Factorizations
| Primary | (ID: 138849) 20400155254263793825825777 (proven prime) |
| (ID: 138913) 75427106277010022103137632342098693809775163 (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.