Factor Info
| ID | 615 |
| Size | 85 digits / 281 bits |
| Status | composite |
| Value | 2188056603128696642996220287785660803588020236851683344411899468811515378987131882677 |
Factorizations
| Primary | (ID: 616) 579525284061453527209 (proven prime) |
| (ID: 617) 3775601623097901981996748920905077483431488502264161987884273453 (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.