Factor Info

ID 150711
Size 402 digits / 1334 bits
Status composite
Value 312306578403763013247278739973466151622419525176425075034175262169147605119103335954705299369870104129671467505912417251975176215350106554204017902574513405863964210080127055188824287700456251702545905436496269693718654179039307041024815995831317519412181706884983029286385942793035445835623137773303443280061908016173968329826813886872130178843316151414693362068217750938753495325879409103664520634373

Factorizations

Primary (ID: 149654) 1971810216061538373537448753 (proven prime)
(ID: 184774) 158385718797805545866439543616594862516418519392830843614016415520559581517243247417843120420213583074050871167391477752791370390637749607266885198931609000646391044739491304214242250911360999282557140241923492198020758405699941127234976258692732952527086149270648252758491876590370262525232141872518524581705128418987338868381744332550232457115946033691736399271162888203541 (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.