Factor Info
| ID | 212721 |
| Size | 128 digits / 425 bits |
| Status | composite |
| Value | 51284975096392370295423251754915179238595903048316999130760338222005842574175933341527507308072136737293818804522487259612787507 |
Factorizations
| Primary | (ID: 225558) 2438768101105752681868948408917807652807 (proven prime) |
| (ID: 225559) 21029049491478686482353877117721723392077230710652077006857321942380566318008760348322101 (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.