Factor Info

ID 145664
Size 645 digits / 2142 bits
Status composite
Value 420042418471740953661077365875121639288115608663106813882438334514405955703973050942649439832959488748250169437614210937021555485803335259586710369912125961020451353170384816331672800576821899262111146827239810912250826747957121210440470377989065649759645293380558806824290250222598582687646431646724890269399466323466805644485470395566841927054965141474854801420483125908212895101881054550397844531079593644178402977320488230911945405521656119264253127588218915007624587338521829699957620175454919705962966406480050263518331515986739578117504604863327234875769442466352170286337302412424152943616621290919839705993258698625748768390432161266753

Factorizations

Primary (ID: 4280) 27203787889921135221329070240968055313746007669 (proven prime)
(ID: 181569) 15440585707086935827281819706307392233358830006942713802741933021289889709077893932758534794837524503733291264605909796029278927809215224156834909643017450365044268661906536044262128770156432048275215008136746289433402741577348200903620508870204615985899339625536174345737318409790548067057471276235758675147094044994779869164041876799533857991040826942715517803082968451514629296869078366745119001384363589105058394047028701993208175167134031332090232415808849653433681778631245777032566788167490833339336701217306770793918434493044017595866915983002419380348368592864837254581110764689772773707037 (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.