Factor Info

ID 155883
Size 640 digits / 2124 bits
Status composite
Value 1998829892990640454535464388602171924905483174198261103210570827524879411528830793696443613348182370136040715790124672561816015286730249272718037353995164682086742382061057949886888868765789562618171984286366417358097092976561285451161141657202776695813267958987409647097397827372553959338651974716133609737943309566254229060736459167398991422264335507037552552816676133071475437032465883143763226586133489728591776206398581963838685559489364215686173028972417230370439537239552583730896742859633411941701731502839570781332602512442516346812701131411654870236679519465671137259015598474665503274799501331319607778262155609713008367906740147

Factorizations

Primary (ID: 154616) 152490484148901066281 (proven prime)
(ID: 155884) 13107899185623020837761555275535714314798125758639633411412067946080287478700994703924294877039809040436564977946405505570137647645789285489571554804382672599210414074612718361478380595983363108396383289791029593061309746389858302287856533539761845426304043104817180748726155045313670462335987934620567905033272983467175138870462216033184847912220788626620533485998779539824866575201484350313331908701554334846687177841662214953455755098079297169954316265893377729200553132908226276899132536774752573622893272280792336828449981988073486948295833986759911351438621461070480164394330142618535950664047317485797685536817787 (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.