Factor Info

ID 221457
Size 762 digits / 2531 bits
Status composite
Value 624258692982906615025496834768801254487900730500134824817377487762806522820109243158335534518390753648486170763814679009746041116705167846047528992516893081091755504457089306490228138884231304068875371697931900804466618242969607011743279336028642780715179949525945395116571205480724872677097741604941018068368665702427815976909535230473030333921170472473896103274046601893397776556437492446275160697469243651382675793059985153093694467919923694394115792095282420549575042330701817422237703181145277955271648915714054596993751362811676410440870665291201226312544270260861911629486000537809165680151879002579378599605981910515542062806453879408808437021990978860940446414536107313104940241736511527892440322823863687162950189540932393893045976110245555971900195469

Factorizations

Primary (ID: 221458) 640203166787624507803549058019301643 (proven prime)
(ID: 221459) 975094665831281063655764460277790221032080730073866297737800667666639138302354729532957198824013666182383754499412326338566282660790846318977223700566596237844415596961452325970931094755746218832160565325661268592948974938016428357509102968459535828817713700407061791779930285790219424786765074978031961844531851049279506237655210678978095025313536184327909043526215808468740055095242179958780816568406772748825112953573512777701070992762588328734180411590533336421238615917809240933391337864389191842547615951202736985826021165852358400147871708518527952141454431603217332820058644444612758509806620384086657398353346197075279730854980197853338187375701707543691419450385649719900161733480795225872133145426631943890734563783 (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.