Factor Info
| ID | 1720 |
| Size | 62 digits / 205 bits |
| Status | composite |
| Value | 28561478086154822650077961629052476848350434964933425199919111 |
Factorizations
| Primary | (ID: 288) 439589715274978576995097049 (proven prime) |
| (ID: 7434) 64973035295624761970226828134255839 (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.