Factor Info
| ID | 263 |
| Size | 52 digits / 171 bits |
| Status | composite |
| Value | 1921233791341296650309467009880731515753138440870161 |
Factorizations
| Primary | (ID: 46) 16000411124306403070561 (proven prime) |
| (ID: 264) 120074026624398979403194983601 (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.