Factor Info
| ID | 63921 |
| Size | 165 digits / 547 bits |
| Status | composite |
| Value | 421106042048820002898190452540654244641358043548138158481765215031885908994481006348204677465501206651527640325651213293658261943304882413327614477253447194831094173 |
Factorizations
| Primary | (ID: 63378) 311640640511791392291238477 (proven prime) |
| (ID: 63922) 1351255219336153374775952484312731403262836508083578042147873336372726248498304872946666455149026107546295504577322652679915623809758434449 (composite) |
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.