Factor Info

ID 153516
Size 874 digits / 2903 bits
Status composite
Value 4002038171753929471991781362181774407852749837308290575498636641959516203750277806308966025223317653961434015188161744702384024253691292275592152258258091944726054882349127758470180181684475427880463627908511099996849231518321894946765515392342443036418448028422152734034541568715176981886009939926829286318014364294649395482263799997321881804779718519721282985842661152720642138718126481914751894393663688964672080054308131888014803742978746977712820592367119994334911183235949192936784836872511657684861988320507784381752150310311063266357319124912619353598848483518296046557803791104285646006556232332022447123047777322549173421470775720116367210167635085138237217872473349757112442090992583706593551383667600692835992090498409731593765127344207984247039784723218793927775369523175288346753272176655332809053550778994872014195324329688461606520819432669935886677421710041

Factorizations

Primary (ID: 152181) 186876755095849018355108664925786534845973652409098845965209518441187042394836572162215388198405266036965211920142964962869 (proven prime)
(ID: 187593) 21415387749542662909060559300888744791512099198269224442524036341602744799434353117014495460503220528745058712353213083803996458280245249591165060262146269576886330843360289372500996917175459839655417568599035083951551548504602561680116100911408485337290969218292215594879336635768433464151880893408096219124048238387758781617170128485660259043384648418342437853581919348560172084395911915328188682324491367608744477151012205131788102746411483919637110698942663593644452507508263787101548163401763453746432624813817716934265952513724274365140741869223257769080245903982875486760624686995334942300516037075111978663696674990875776773933926313299474825606636948755729489344009817610127724363784704790225795053988519625211429834469183869381124455512266389 (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.