Factor Info
| ID | 1781 |
| Size | 61 digits / 201 bits |
| Status | composite |
| Value | 1684952622041011380770494668157544387975321392986020396279431 |
Factorizations
| Primary | (ID: 1782) 255129045094214705588612161 (proven prime) |
| (ID: 1783) 6604315166933611073970188395856071 (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.