Factor Info

ID 15831
Size 259 digits / 859 bits
Status composite
Value 2188441264513102685857294054407444854782000506036715550222872299318847022226378351340408812647030863629012521888544810043538087006906996688683450866277996835461049907001808383839008118300160964712043553172052802081908902980489169614474267453072635473044101993

Factorizations

Primary (ID: 15832) 71480402861675621827588464800435686040398437348131862678029 (proven prime)
(ID: 15833) 30615961534912394482786019485291767177248218598922253459200184647375049709146845109762714170505535654267272787335595165770292747929081702142402536995345451693375682645954238809463861485717198873709517 (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.