Factor Info

ID 191820
Size 651 digits / 2163 bits
Status composite
Value 905451728871301037333723809702610595255487283685523043545271279615816790624776258863849076133314769395295653611943061020980669356234365065175021820070523665252016494200683055784355177285373637349527567578293531060722939555892702289068412970504689637955147056632124318596663192810716618774965842421858399309817114559274277681902274895944169739172664410661691294624968340372356683621978293100287544822031415310931863899911959159279630693647854456747409883022462450790257275973244529454727888593146584443183143702661033464092916438502361628054043744015063440275907217421613695435416402989979909147915205681023374372186161824238573947070216652370510620347

Factorizations

Primary (ID: 191346) 42015801738664048016404475754133099852296974633111 (proven prime)
(ID: 191821) 21550266599770259643858916916226566796156913539156782384380678225485751368041486218613225329260470706725110862256798178417146926054313625821123185560071159997144246505077438066388988228817126527015929530976649721334395701241121443635760502392381494322737421997030994468106745924831513885743689443802399509313492608941444544398086573120632588063980877986992063164545115294122802887653419392191742963396481639055670653162204097527883714922118061038955797215511937371115465974834804596845781422910209664070286150429113354004467621375475568758689136611668566734980218301429351840459655260656491762459562877 (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.