Factor Info

ID 143861
Size 519 digits / 1724 bits
Status composite
Value 728721797478432213474059746880078256240129099676525070668541396373850208254585304858794850072577543001557332260322884632368170593265291987710974930435956592512314670356725694673300097371216952288809276498725031208564958700468891706979131724453093495764292568064689618598091603751145721543046468733844903525883080527815501794654582343456276599808731288240240344521109364895075477368524911277788541176870124078448139764792632486713738047308756581865296593036923983391440675491920570441385213017374754853374288320695608447

Factorizations

Primary (ID: 179099) 1387918246483342737485362978347016364503363 (proven prime)
(ID: 179684) 525046629601448973396543981307621272191415945147092707731050495048566425212573153693000460092023287177288480815782889486378946173472616331104184010632868622827284318930066158519181775714962989568472429495163237904601813654214971404644239937349320009265788559658917490719798875980233458070338078575237740719644314783262422572517751912354485368507215394558608485863924442208611475479356066767478988750469072127321233727667059717499954745559439398988097436523681603611900321422869 (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.