Factor Info
| ID | 138970 |
| Size | 76 digits / 252 bits |
| Status | composite |
| Value | 4231764297263464635802389520508577083214682947490871068203378089395558701673 |
Factorizations
| Primary | (ID: 138971) 2587263813138354600774289 (proven prime) |
| (ID: 138875) 1635613761447205749952035604078178975056872729824857 (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.