Factor Info

ID 71987
Size 646 digits / 2146 bits
Status composite
Value 6519861893288131211189607594124414828849660930078931653682892197458409786510435982783029459666953091689531375237652986337110665805524441007390535715745991473770988680704072953347398329243161871241181723945365334402024798340947355675522527997030360712257846032540818476109508069341425237108485501127459943517617068519777089391729223226638434661643518403226861597240248034417139183310490508962321190227462790643682036210176971763324713540261871530954490513782585750074100617919528290243531769961514460586101775368537063850839750411618070348319777469587790060497260766620561484030689391348669727117539663831528598027074272676284492784237751221819763

Factorizations

Primary (ID: 70586) 25671002444875098778617582252548213 (proven prime)
(ID: 99321) 253977689702169841962994418223385533200756742910704841644969041969861349631176483406695797613356784427535445434289689360703916782559931132836848619496114315760030567745006731987780049758166295542644925472224486716798594006069391869077565584139644545613586762839806724970833975138037945930841611684334623839566517015395185777620277162575599257482208559161489666389454865771870421528142124654015612808590185686979499678640094796494296026434581718238279056017547680755569012886237984966364152517491544429154774428062522786318563591491139085101448847880960053376044954391829376393944726132715163923036085431443969351 (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.