Factor Info
| ID | 553 |
| Size | 79 digits / 262 bits |
| Status | composite |
| Value | 3868019147102713374164414341177550961572481442593723832344086819833382702128519 |
Factorizations
| Primary | (ID: 13) 389678749007629271532733 (proven prime) |
| (ID: 554) 9926174206197176782314412625771198320265464117594737043 (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.