Factor Info
| ID | 3917 |
| Size | 196 digits / 649 bits |
| Status | composite |
| Value | 1288685621002479508908413577150359888559929073573875646256175678480744956141183153315596654192869074084560548693373147863790484549904138571813735014918399238790294249293784086074719300414964282537 |
Factorizations
| Primary | (ID: 9126) 31133636305610209482201109050392404721 (proven prime) |
| (ID: 10995) 41392068962091052985332398627073979081218113040381936085590352206554778371107218958585665434258407718508938412604924348317411137346905314383765722296548752697 (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.