Factor Info
| ID | 1658 |
| Size | 123 digits / 408 bits |
| Status | composite |
| Value | 521869579940006171441386638595199818319477943299497698793360731166030811090522408162354324771785898728696394467661373323521 |
Factorizations
| Primary | (ID: 1659) 67234945243909760461 (proven prime) |
| (ID: 1660) 7761880046853728644922342512624902602629348193096877111248298949219108689577593983062822005583823891461 (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.