Factor Info

ID 148663
Size 867 digits / 2880 bits
Status composite
Value 678515566431361248416428259413815068904908521874543776470902174646656315479422599688779358839254106787811147779111876212311110916284158144295508998502496728738974439547000089428421477559006821535728472847644436482207993374579518024117648394692203895508933339700995629917295908662079137248117951036672716433958048300190404681190102869002382562574104414949443281642034574522281296668018768179623775226676362997295366919884041910977853559282593685931039085677515681193942857251204326566890757154548756433575004837381240347996009128280099497798317446426721811426494437653735266890623989322059635286454409350770093008192465949831432373413877223237379640544969203533608627253031413141047963375860714385143555714183343449393738189343270516744300917892361979996122311748461804296289108627657462545066084799877412625808479681108944405731776475081118438339259508882976086859557

Factorizations

Primary (ID: 147292) 280931610243662693509 (proven prime)
(ID: 148664) 2415233963322457146986275543257348819446735328109894530085163401484793989239051192440818546555106275358160798023382923984953862949043363646537194577519673479350015112683053774163087048577199408201074058279059259921469046973696688038542434980629101088814264543214155574365089187348175427186173892826951302858682223110696167696265243985916849347300368371075319458276380605963208111979189142368336762970317779247275325873160636709439053610333316634469763794972229151756898663984975128031865783818105088158929544938565530443888012636310331729768373169349126957631571480189160759699725658452659646593421034738615165039219463640209972241507551637031971439247640136680131064915100756019196219165586667566770502666768868284914496724285882294070238317349463425483562094914329339605496551773141446342085784015977394168414899009684175233915164128992815792673 (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.