Factor Info
| ID | 1521 |
| Size | 81 digits / 269 bits |
| Status | composite |
| Value | 543665555900439635587694664180337880444049473200467624614612043827853453776026399 |
Factorizations
| Primary | (ID: 206) 11260169813534893704769219 (proven prime) |
| (ID: 9660) 48282180899878210475423243434581382508315282361154991221 (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.