Factor Info
| ID | 16521 |
| Size | 64 digits / 210 bits |
| Status | composite |
| Value | 1015185940262114254602463427512691200121557166990012872500018097 |
Factorizations
| Primary | (ID: 16522) 44763922656823409574575008753 (proven prime) |
| (ID: 16523) 22678663531006893220213039493696449 (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.