Factor Info
| ID | 3948 |
| Size | 63 digits / 209 bits |
| Status | composite |
| Value | 538566313179066287688308081294610180494986903516724876086034221 |
Factorizations
| Primary | (ID: 3222) 203525545766301306933226271929 (proven prime) |
| (ID: 11040) 2646185328486854129693169911139349 (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.