Factor Info

ID 64713
Size 741 digits / 2460 bits
Status composite
Value 253687207858515809554482712693561513076592402071740726306578986503175629361084704760301512598421113206811492048933277912372679642289677336553902282842339433346503746828759138338370284460124712174297358029101585676933506645139586853196429995561492248471488399745654772948981414235482026973010872039600229975942153285612573343740858590146528906087520712582528005874698352301840119383291763452123798777760884684549276135875586086463626454207638410501931847218322503148510666503553985258328634533181835521683346418255180381523217278343496980849657063748426278065874020516077528574256615602681778216125740848948864664204572878851510142041147057860406132024624345081897915876974410617221456344632343674120116818425397607406850982031792122478785363

Factorizations

Primary (ID: 63888) 312828321289869986745691891 (proven prime)
(ID: 91203) 810947061354609884020584430700061246868845328070021071491508180345275582625926221733437150478019286351557989332019005058523500604315369213905220031696656607863542250874360099486007673999116833528674045521816886838170675841755876953505157477235806133405581266741853178657862000202226461928034749142327914195423216776856062703119979046722230726641100921075571903129028383722170535989897058727815364952516471221592952154117470438279777526382227610360619518355598542016996643770534027617722524877170902789033063340319152646657436752216808918924723418764859467042913217315857641109200814421175392822415649584055373032157734684346419754744107575081216478665460653028389789374842740103949807646989172988109358771391234593 (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.