Factor Info
| ID | 18307 |
| Size | 145 digits / 480 bits |
| Status | composite |
| Value | 2502522970576344222429532423220078861159944054540679322988162932142479552336059297808343509239640004952234280380014759612012923325557041618671081 |
Factorizations
| Primary | (ID: 8289) 215399976956807881972039163130016444991137 (proven prime) |
| (ID: 18308) 11618028032928487547981202103534221707621352897804451272379444081817133429524070044645985264480201699913 (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.