Factor Info
| ID | 42872 |
| Size | 107 digits / 354 bits |
| Status | composite |
| Value | 31666536688679451829048038143528027472703085556704270074744938496232624896385798659375638480794133406750583 |
Factorizations
| Primary | (ID: 1184) 1478978975454355328412104109868761225273368881 (proven prime) |
| (ID: 9945) 21411079680122710121236277326551385654412276472220854059112743 (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.