Factor Info
| ID | 193667 |
| Size | 78 digits / 259 bits |
| Status | composite |
| Value | 647971665024388018329859535918935773953082324361399971160677347050358590326871 |
Factorizations
| Primary | (ID: 193668) 1102097721041159743490140874571151 (proven prime) |
| (ID: 161063) 587943929701845737685493450745728795510977721 (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.