Factor Info
| ID | 81528 |
| Size | 144 digits / 477 bits |
| Status | composite |
| Value | 210923256385327565186549267080781532997163442947660324873342398108360645224664377056929271927601659761306294770765831721403503225455418559663257 |
Factorizations
| Primary | (ID: 81529) 449392337453516980957812622384308150135511329497640646212987816980849 (proven prime) |
| (ID: 81530) 469352142452016039907751589824282445189719976178466982230848080132158650793 (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.