Factor Info
| ID | 161209 |
| Size | 177 digits / 586 bits |
| Status | composite |
| Value | 172550175443759381145649387286842868861307842763074281720702424819047228173083193806294644442463464542305893383360947853969509852586750543557634931011655940594930376867985974663 |
Factorizations
| Primary | (ID: 161639) 690263619924365121053793001 (proven prime) |
| (ID: 193599) 249977212275313564019791480476162710513011050224539139506308113889344592646820963248336353248371685659326826577654717292764979932428759017025826215663 (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.