Factor Info
| ID | 1985 |
| Size | 65 digits / 215 bits |
| Status | composite |
| Value | 39509629552083062393274012475569797657963161709539301744383665251 |
Factorizations
| Primary | (ID: 1106) 2851671040957030569903401 (proven prime) |
| (ID: 10097) 13854904364713643609171342621705294471851 (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.