Factor Info
| ID | 42856 |
| Size | 152 digits / 502 bits |
| Status | composite |
| Value | 12891391890625559877255274275270225514164029523052264267194787906862905031865863932122486618455019147371662608725698902075263913329222708288202398593451 |
Factorizations
| Primary | (ID: 348) 964537359154707797801 (proven prime) |
| (ID: 42857) 13365362956934293311677633167513603348141628399435643437491796644263616930600318984100907406653010970125176152344077631770517225651 (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.