Factor Info
| ID | 16991 |
| Size | 166 digits / 551 bits |
| Status | composite |
| Value | 4475340725428090730455498741826330775997816823386682460745026454102536415397948728092672323241512375512524947051183585433710989450272460821528547544432225389431301549 |
Factorizations
| Primary | (ID: 16336) 60433492605929799024858062086345509864222351309382109 (proven prime) |
| (ID: 16992) 74053981202287247997566808814059629473393915891803581711148577403834011144005362915406259110375202349726764998161 (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.