Factor Info

ID 138541
Size 1020 digits / 3387 bits
Status composite
Value 251963162668069196746127786948691192502194834352347439384005124871220456336407187606698079790827298000787028418699927102673227205937416686969736792193683020281702054233138733501970602866137555615283683807434088368301723480918959061523665546906196763573373964416332352791495081042051483520592054785082695473407981884749500329767581514022105463150809942698069057605727830190259722412913874964227132824376458810190704543231514866228466697390481052660895020733111168386843343476355398607188341843046070778937731431815964424073235814125906224257405381229006730439811372208455009582554813609755239172442966208409165369124196238238345467984013269412755199340040891409252633561970635592103153922800457889049490593142655398325447603372719908164572851597983229159106099650040364467363794032181470219820170388994378648090150638463231602777014550181866702177591613117152639569813844581370378303605268702868043926742110073989801658101468639715101746721293423453146221970597892677469105740645297680299447717843033321489303237342622897

Factorizations

Primary (ID: 172158) 19640790445056687082126153729 (proven prime)
(ID: 173508) 12828565294910766144152222016944483203608985029953736488305688719203054414719209716745172000129866813454061342256421943172009141697139713173138861034286507506092530901515822925266630148367306887463379807131022417445116950576198167716027810711074079933903113762901129289181020272437506676601753358854597616613138690275444467552044339055169478934942317846039049436744266909439849297039222739034782556468185101232018731199500993352447682972189243919450872123959458037466558610450585500900113868319576952703599814303686276279019799347087082666212465521791761319883143074577638474910538589530943714273217677318029447454936309109919056946410598800447534238646461471137053858958680100083068809248924462474930810437461065348142596169114850284828263208018484260856222135969358331112577720477452443596957462723570505426789573229539378744112577157306215020722956977863570245356650506811872148019096496778274734712158795297672115767282894220224917529080218960145730206573425990001713230617484009376930993 (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.