Factor Info
| ID | 1572 |
| Size | 91 digits / 302 bits |
| Status | composite |
| Value | 5238903446996558865909981648924479208117698777695798404224594376889530097733377731918608161 |
Factorizations
| Primary | (ID: 1573) 616713904085105580641 (proven prime) |
| (ID: 1574) 8494868385963288026426110100034265087643115718396736984908461266326721 (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.