Factor Info

ID 166425
Size 715 digits / 2374 bits
Status composite
Value 4231741472471880417438565835189421708130264844571170396416818089378717036995714083212711043616352943735455153157485586826907222092128959864462990132378450076437681351002795276472496979147224949111357089407570130246116306067193896796005759471691724136912563307431711196125600168126162510386757204573730222948001220782339027368305789180511485622317387647807687484549595248165138308760289180061142481531337590673338013659407969142648400367457662438101713546703609700131901210823937600537754338568403934463263906746392166861653093304257386442283800064463421091874631601514365518902304984900132961498790345897851769763061732111242933660789740599124992602585643151903010161905908998122942518185214684847982042450803800161

Factorizations

Primary (ID: 7543) 28753787197056661026689 (proven prime)
(ID: 166426) 147171621027544378062806762504255209746927778087486707243535128388696698312821317428479335966014513146624502621032017040758082387287519138327176205545077702991295667043641251496720088370083930929923176105224471053043473466328355974277987738388410612266329725799764805735060877817293854048470989295947321520544023530916215759639820550026575733689261231702014689479703684020745963608523052608979456171482232543635144199421117872025914919667984881843415646124865191777676354928964788402677418201161718488164766821005876357782749631376261727592022033525077572539899156172567919255337129736550060320219146935605084870316834453167000719802706636507843709038911087331968879989589717057504831515111649 (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.