Factor Info
| ID | 3781 |
| Size | 165 digits / 548 bits |
| Status | composite |
| Value | 642635267472781600725161778447983848161789038803669926477909962333199740289901648810668836483434892606883998627469112818605703939282663179455207559628621975392850919 |
Factorizations
| Primary | (ID: 9121) 61676882198695257501367 (proven prime) |
| (ID: 10793) 10419386398334775375022892903318741638143977022668621122341141283207209876545385617901306599715929642004387404598579829497772001522880177919057 (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.