Factor Info
| ID | 17990 |
| Size | 83 digits / 275 bits |
| Status | composite |
| Value | 56618542938940902343646837478198361850124455847205354946456859020918820132842304191 |
Factorizations
| Primary | (ID: 8165) 38904276017035188056372051839841219 (proven prime) |
| (ID: 17991) 1455329561052597138348454392994231780317942530389 (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.