Factor Info

ID 121580
Size 529 digits / 1755 bits
Status composite
Value 1991559718883771471737587982242712360694868730953916361549724010886906265454159403852826504467864608145880408773114707988881798137964288229055229276968595177455444355436755524238464367243990275620951854818709287677093852624132568391055346923029589258314967212471832339782439673383504568808896709418520298411976524385288459500107530081311124851822169059629590839823404877862125254043066081911019445607208449183422435808843218639819065803582669119515607968983435631450634757896507077153172654163849163349236181843316802514487611641

Factorizations

Primary (ID: 47855) 3960863606559301330706923309432132998619 (proven prime)
(ID: 121581) 502809467002522547288905124637056163517675155139180826723185283231497917207502023354743741174654320729886529282730681137804903412001075649732838060148349960890246359518713790551160546430262111537639761978077333081729108239394082903349837903497373415387910548948778571749132871072128971871536709505379673450472145144552166334243423109184664651724935306594570186817296530934438385853603000255605035514672866667434772309124949550951021249402072529815543412161854640347860721216197750975524539 (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.