Factor Info
| ID | 4031 |
| Size | 168 digits / 556 bits |
| Status | composite |
| Value | 166087971763491352124563162629811911292847424026816649036289450013378774368423901639561917911018382245231145146721320897387062328472897616928851741507626955481510725377 |
Factorizations
| Primary | (ID: 3259) 167773885276849215533569 (proven prime) |
| (ID: 4032) 989951275726994806272077349618108496706787814863605410582170714083380997343729521649199452575206154906133871708875233846812938206732566121010433 (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.