Factor Info
| ID | 21881 |
| Size | 164 digits / 544 bits |
| Status | composite |
| Value | 53919340596800191527171388605722560417996528688226127588854466771292048279017120561332094669441105605144676406871644943741235715107343037530952255060649231097948161 |
Factorizations
| Primary | (ID: 30637) 25984196582137484361518374801 (proven prime) |
| (ID: 30638) 2075082076382780199857775176222997966121369185386202794224418504616345063822594810078231633000243812775727839366896764267901584818645361 (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.