Factor Info
| ID | 43977 |
| Size | 192 digits / 638 bits |
| Status | composite |
| Value | 628735393307352055806322957741445508035369269436190900437338846642778850605093128695744916031147473221811736427569993508447745006303419505984342214654152810277202303263181176687323312708486769 |
Factorizations
| Primary | (ID: 249) 2871307447985313921708888731089 (proven prime) |
| (ID: 47991) 218971811516914190435313780361118122201504494690888697727697099690614776853147875865278002611528855375892245560353801315570456502330011432391640102243752693225121 (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.