Factor Info
| ID | 1891 |
| Size | 100 digits / 332 bits |
| Status | composite |
| Value | 5204878778731186399625042980029634083858941474425547523873252740691596936580025028119007461101689449 |
Factorizations
| Primary | (ID: 376) 13092861035652370656608696909281 (proven prime) |
| (ID: 9993) 397535631406924637746967016593987472090762140382658214083960354856329 (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.