Factor Info

ID 21393
Size 507 digits / 1682 bits
Status composite
Value 176639316997304143383856666327043776330916711020403472548824570077120094781377427361258223526707082911226687159402620705789829804661056596258100156154206903181012231834589561574565698265068842859013287030367038913476256302090318757213144976136880545011042766890164239956947407602327909985274065647901620547208081521870582045617758800074473919539371599528938360528945978992228686816399269978069773178894944311661082977434355204677878358754595260949377118252450820001043128910987373340022422830783214959954279

Factorizations

Primary (ID: 16772) 72898712900545938884496308172168836533702575641 (proven prime)
(ID: 29835) 2423078679568583857843204887417902279581051330704670775321092207848630663646172338638956719770697359235913759648331726173463077600120555941158872214304096705065207413705380652195404270169705605510486940066581310133071450805450625519496692243027942047214387385666379569165286850231011266403870283276415739823521382642679851532766895364552804803645411494305487252814179592169736242505525771473959722478153685133231318254871504978412821421428899627532130065333119 (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.