Factor Info
| ID | 147172 |
| Size | 75 digits / 247 bits |
| Status | composite |
| Value | 213125145586456465885507237060428185115394105924099474752053471790165793621 |
Factorizations
| Primary | (ID: 147054) 148020807352107352204781 (proven prime) |
| (ID: 147173) 1439832341134857565191504179772124931202528949509641 (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.