Factor Info
| ID | 1643 |
| Size | 121 digits / 400 bits |
| Status | composite |
| Value | 2231198969039542683332621224383235020175610403343902772187487094571747919177578486574026523505212170360395894173731359579 |
Factorizations
| Primary | (ID: 9756) 172681293323020228546626434127696942772418303243617841 (proven prime) |
| (ID: 9757) 12920907216428060225679885471297054928461628797436989842420736076619 (proven prime) |
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.