Factor Info

ID 107720
Size 816 digits / 2709 bits
Status composite
Value 251605431994714730827765210358564421220582116584783687671982381976373446730120804638335930153089026280812860670124946255727924059875975766087775123102046933234953973113141653929743762979783070941542554266658098125623532293115612733477103408247228031690386809172798753020353433576398294303992472798914670247060331583792014248626332495849366311456764032338640369959017129102633273324813609525002246486906239977017834171703884626152114069267829826182509491870853124619831919137745560342318424497314121317174492667669687454660233781459319445729661174451228122811187953865972932090807716680610225577157103339095228622050267710674121971200868931915953604070290408335702345363515397347891549333497434280265466603672829046492578952660915971118320998470286775081410687053373887513937772629448234893847733629294926777144924381

Factorizations

Primary (ID: 90) 647277670717998240943861 (proven prime)
(ID: 107721) 388713288557628248494783816833562998243190380376796093540035660990636885336729236263007512570138348014132970812212055440782837113516045804552232742516501962607882710398101635127376334020826146936254889520929568580360855968263382318661666749511052731667092188470494514999655062679735167244010614386947542753659668822594982805460126461855867908933770753497446238165823159692961928862146582136870346157412408751125896154819398655174646834966628884297989389798192484909407111707179606078488952208123449708143154628496270230323798809118997036935438053335754568218258708590649513592821149716209927181495559641292180143235700720956838363066867659881452743086026672036121930031361060957479163092655734573198627257467307987345207565014198439380437743916794520854584965409186745421561336341725996245321 (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.