Factor Info

ID 148734
Size 954 digits / 3169 bits
Status composite
Value 640190950834464307935248197057285496053116401115334586567077739393169780309601626533879125841357799944927626708795490790346969037294837818443059770163177557782860222929975840103689291092993191817057388795814954910637434456798964250412922669665937682364580599115276282275214141975120184338141897844666417319130914285397793872393471398035843387572550322376489208729271317551578926632452884393006738037414183785783831095109277393160670933440342431425467448085609600661312320828647701939342522240652469218092563627918764723387872331839524945025653528336430137724297209376570134258740646981127145472186114111601430554771703805388055683526626617516324401058318095818300294747558072980049023832001273072478616922053730762902528601832880467140828544387983660765310864734480627879316624817291648172258046629622414495312411422007911803156705380666808210940690870031810808545991009250456667451817563112822277105754780498981316391109091542602672828520786043119843391

Factorizations

Primary (ID: 148735) 678259077537347642191 (proven prime)
(ID: 148736) 943873767467878597163908552517059105714165020093702332905805922474132718718459071861277180412826636179588800024347736163585039079549057321830402766229261328366538747229533382065237874817430056509748314566597104709945960951234510623797081679540626665637358829390880964291773751074460143230868972213334383628508651115845514804143288772568630154751846350874388839742739164709614172201972482811252623692237459229015887610611508988798284621587130723368539738119315294082248814368945815540017088027837303176238206972364822284299747575512831519138467473633450465592837384028799064539736442346783855203139732911070422334647985377284342889928827882140224860993652765998736874289662267647455068774469068321670120636725075317294688761235241465944856027287580041449816929413878602040697027661623022159868579975868555582715964746755107671686894144137668377997261748708927142338819699955874608119201441517491519590179160053262152121885808720093201 (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.