Factor Info
| ID | 42518 |
| Size | 147 digits / 488 bits |
| Status | composite |
| Value | 644989457204975072930675466415503521581644024005676182917420475640869643267075911788416875850611044866487548317384538107713131354910317218962537729 |
Factorizations
| Primary | (ID: 9804) 187819393477718369158203829103 (proven prime) |
| (ID: 42519) 3434094026512189159557889094008841022948824745047865578399679598135443894247795030218079071717059732578232968262592143 (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.