Factor Info
| ID | 81405 |
| Size | 77 digits / 254 bits |
| Status | composite |
| Value | 20657117848664979657435197608176695859711200901224131369209931248872274159997 |
Factorizations
| Primary | (ID: 81406) 616064755943355848636734095355184629 (proven prime) |
| (ID: 81152) 33530757358507781530316034545431872575593 (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.