Factor Info
| ID | 1987 |
| Size | 146 digits / 483 bits |
| Status | composite |
| Value | 12896945173965735958442764875155135904298256971327851167102045352302905134330628213951434119011632269598491736274416329764337209446470941644693901 |
Factorizations
| Primary | (ID: 1988) 2630268892908013894273129 (proven prime) |
| (ID: 1989) 4903280120424086847157401901730072301713582620179399217776817695231231038337295762739192980497406228905961911781368712069 (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.