Factor Info
| ID | 42438 |
| Size | 157 digits / 521 bits |
| Status | composite |
| Value | 3923433519251646882385246128758042420508556039992379425940392062752200708885981190608200077392608881821413065314936086289418417824986237310685017792226214653 |
Factorizations
| Primary | (ID: 16) 8175789237238547574551461093 (proven prime) |
| (ID: 42439) 479884376346377632085561209317481636301225648370337449188450580088872170577774045185854931826351713505292568728078270754358436921 (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.