Factor Info
| ID | 42128 |
| Size | 118 digits / 391 bits |
| Status | composite |
| Value | 4840492195950214660764802558569807464320681630116296963036810439741886306372787008632141347246788124978468167025687423 |
Factorizations
| Primary | (ID: 1515) 18821014311299403023 (proven prime) |
| (ID: 42129) 257185511677984959218631352287228889909710633776925531090137484572024703669346620216958602190342801 (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.