Factor Info
| ID | 8391 |
| Size | 105 digits / 348 bits |
| Status | composite |
| Value | 410178454308263220135839368364443864497099886198593118663248862988323814079737364032743683840592882913243 |
Factorizations
| Primary | (ID: 8213) 56713875643149053038693 (proven prime) |
| (ID: 18064) 7232417986898980905144454393014459429291440853124107535825991239740590509298924351 (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.