Factor Info
| ID | 42871 |
| Size | 135 digits / 446 bits |
| Status | composite |
| Value | 128957320616565125257172059974540168105546656070494647334696459198336517834743180710651291694093101520699469508038418260065904187298423 |
Factorizations
| Primary | (ID: 27) 4072353155773627601222196481 (proven prime) |
| (ID: 42872) 31666536688679451829048038143528027472703085556704270074744938496232624896385798659375638480794133406750583 (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.