Factor Info
| ID | 163568 |
| Size | 77 digits / 254 bits |
| Status | composite |
| Value | 17920249472075089118920614683779185085582087740368389714973056873896929716201 |
Factorizations
| Primary | (ID: 163520) 3900350408237898825485900551 (proven prime) |
| (ID: 195317) 4594522952149600171240873890423422960679163083151 (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.