Factor Info
| ID | 163664 |
| Size | 83 digits / 274 bits |
| Status | composite |
| Value | 15263400398382271124431940635002537671474074282889039926638524747576996176443723997 |
Factorizations
| Primary | (ID: 163554) 1572643955598691288699472498569207 (proven prime) |
| (ID: 195363) 9705566440543519619852281596404625692693011232971 (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.