Factor Info
| ID | 42129 |
| Size | 99 digits / 327 bits |
| Status | composite |
| Value | 257185511677984959218631352287228889909710633776925531090137484572024703669346620216958602190342801 |
Factorizations
| Primary | (ID: 9656) 856532133777030350222881 (proven prime) |
| (ID: 42130) 300263704694743714419941004064038903638946364131258703467749625794825758321 (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.