Factor Info
| ID | 12221 |
| Size | 68 digits / 224 bits |
| Status | composite |
| Value | 16229860716953279584322303333209011880287838925734024131798896982193 |
Factorizations
| Primary | (ID: 4319) 780464337846444296785447886881 (proven prime) |
| (ID: 4472) 20795134293690804171286866969789777553 (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.