Factor Info

ID 21469
Size 399 digits / 1324 bits
Status composite
Value 283520903936619036560628436264227417457188514392239200510621974609145140021521308091195102253559265424252573108982854290806511083888820604716341901985943063324988776803856333028873642301590646968484116798680426281277184994062103980655647221148802511499117862527136517600800676559312211726538322542233352920428184680884931009051472708760488358064997805087408394570472392275412840700626090517635976121

Factorizations

Primary (ID: 6861) 13012873776055827785521 (proven prime)
(ID: 21470) 21787724127341345247446324476650896193350294707966158705268570843841339600783747723659563100502038356070593729258411716707513611110536305147210910633127220481448513208210431124839747676079982807921164403096446063237717876943642757131138567827082580491475934931738569438706482380394737863515358790756935695244727666806473089489141155418368698559318676846323299784507672797518601 (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.