Factor Info

ID 21307
Size 533 digits / 1769 bits
Status composite
Value 20987996535058726293967847084758475912943078502757441322403278538406980430193083681827663574511194120009232545563100629237051961956864985286759086927507118004024671338852556028665353764810477261596433642170078801360706831563799484956397083600206107273539144203081475520683123721604715210152256486285771536374932798716328122186626749174936486173133324333329563317743559644839616720633238900253594775266704961483205514531656507949947021525422440028114734039620748272241187080906698406674726688574099677045597033435316967335180288376791

Factorizations

Primary (ID: 6961) 32785719659723694619 (proven prime)
(ID: 21308) 640156652130527154688495157222531027512485746670921182972570347949140830076031755085911626060927088997756852475381860948469512417185137222089992616474229165363599955367569854889217739032230756339349872077212199070493187083080791244443038718973277685239098625987588364032061659670756810931722499865010011699905044529618382126409145353894530166370169356982919628519731272029370470612049659407299600499303455331878883819863290577213734505417081665459066130290443960908170708130326873544605805765112212415664215430389 (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.