Factor Info
| ID | 131923 |
| Size | 177 digits / 587 bits |
| Status | composite |
| Value | 257233207805440217854219521493085691658961794143489956710735880022868711605821971930025797395615079172497774304726237266979417916723845619553966533538430659519052500459426205531 |
Factorizations
| Primary | (ID: 167724) 35381269315942497678572657090020747 (proven prime) |
| (ID: 167842) 7270321635677811368258330137610499110535241604462172829536587327138160777111248309815578971126679882343167272341657835571455840092600073353073 (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.