Factor Info

ID 138187
Size 1005 digits / 3338 bits
Status composite
Value 638803240401618962587992111820633942577796238195465850393612087967980259432783624944182038232821697001671228903965050444443836611028308563211828288580170039805589188938437353788843133477869027553554721279269277299506467452037453218908003440248926191963280383530705867885028979138697087670565518763494611433699061518689341366941129271576772432152304609607757271335830492617968108260775960285220332829934020135184857421102188884912396992970644802222845100241537446678591771221110858193161786731308198267488403162419856411712206048698942206339849838045697760816504555764405730391828477819182609151338010870061567551569296285257166186984215331250704285236089418316759441007697941724597032617351965441678966608065790650794833076044865355570245354787928516262254436308252583862859827155888104863560834629882350930632043935428256320425053279049835526553203211933188190408167659056206233530856324617828690527254724880920497298822301306057037965233353201885201998553297818000721965858288574142642143850173918789301

Factorizations

Primary (ID: 136405) 317018172698691402707105521066838685448001 (proven prime)
(ID: 173166) 2015036661664083316156622523189583398431168591953284691988971632530506160989433957342029649690156244741793826229449757385542719078847390845559187663257982703300398904173856191954771918760358400090992998116988917761777735486997955487650342137281384831257255770416150155562381490205397011328358109884280862163408281447170673887912853232885721256084889423091402501410930550060468463859517360300453148943937808191176476219246948158422680510165563196396963105960941330485157577528864545564518433888736995526551259593228489472976663596978047600555837137536859605830334668519167197729944082323016481305041044850237542902144088409422932237009166479728000117142944541723317167001142335077953149710061070641459331891300130745960599982364214962424747708271246194553294291763835752778395090540771383702719010291599713281625065396469925749795417722904598391288979344255284523546214872524954860220825894069967586663889712719574118347219816981128271751770566841177181283030941301 (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.