Factor Info
| ID | 171990 |
| Size | 198 digits / 657 bits |
| Status | composite |
| Value | 536566174166215084427970345964931675336179047377425292656089085070135328476348999893179189250048470354978051845688462665630188064113542491470688962893089883138814525010727158370866602966497578234857 |
Factorizations
| Primary | (ID: 171498) 17531132493408736090051007181285730324957 (proven prime) |
| (ID: 171991) 30606475329985124502438475546233953915119857575724177288996055674541466545788398758804822707338674343401257834311159808408813257029746965300314199074380920701 (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.