Factor Info
| ID | 16561 |
| Size | 107 digits / 354 bits |
| Status | composite |
| Value | 19769099466639931334459499402030830776565677953281417304867523104040466305261479790797645026348013638016017 |
Factorizations
| Primary | (ID: 16562) 609201485490930587260897 (proven prime) |
| (ID: 16563) 32450839233769795837441099975507900416662687744895393244588489800379969564230502961 (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.