Factor Info
| ID | 63409 |
| Size | 102 digits / 339 bits |
| Status | composite |
| Value | 638624875303998509553362378822593487738060810646012868852465210015682577923955367714583845224902326081 |
Factorizations
| Primary | (ID: 63880) 4375997670680275555605273053 (proven prime) |
| (ID: 89796) 145938120484584347037991563067314193501256933927154629521736747431004817077 (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.