Factor Info
| ID | 81243 |
| Size | 168 digits / 556 bits |
| Status | composite |
| Value | 155987553935061516055384358127420541178258200666964200051763571343733580336223599912787694230130422827469006279569167117472994081051950585608970788684912065075272767321 |
Factorizations
| Primary | (ID: 81244) 1558883630679421268120418962867274958919305400572509032958654553398821 (proven prime) |
| (ID: 81245) 100063629423753816735868778200559577342504403191515187440922285667190119940171049253826021025598501 (proven prime) |
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.