Factor Info
| ID | 1645 |
| Size | 57 digits / 189 bits |
| Status | composite |
| Value | 572985690837037837785274755096815495464402963048090748161 |
Factorizations
| Primary | (ID: 7432) 33364102626696976997761 (proven prime) |
| (ID: 7433) 17173718030064788332433726155286401 (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.