Factor Info
| ID | 18639 |
| Size | 154 digits / 509 bits |
| Status | composite |
| Value | 1257329620187497692126560520381305874848545738619937403647026937880896008958168278429460164890293222227688671722285458240063544668218143929188529039113407 |
Factorizations
| Primary | (ID: 18640) 236797435223187931175815185235335037279 (proven prime) |
| (ID: 18641) 5309726513728625550433411315228852128976108211138697354136328628161426041450148260146958277512187735465893146140833 (composite) |
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.