Factor Info
| ID | 16857 |
| Size | 180 digits / 598 bits |
| Status | composite |
| Value | 963807265944328009669083488325123936047452788570781323646571779874508725031624322523552258559144454715868969155041009485762318960166574196179231643422761504063842207316055704290377 |
Factorizations
| Primary | (ID: 16313) 1436003589550079403417985191612889433318011249 (proven prime) |
| (ID: 16858) 671173298561393360143162546179938577182614485853743281516656823514832974446966157107985608689595382659700424778184625112822350007030873 (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.