Factor Info

ID 173180
Size 681 digits / 2262 bits
Status composite
Value 640817940313455111923951310619970846191702162578406013106973817718149029108202094862539644090513597068482897923072752265014310820802258290925429584746388718685111357869565421610764277252842167766257820396910010320858252939605138130994106411450493879645008313748653982274341084600936059112502449639086033510067861988079161968505477566673328756762145428422380917150997006398665609125860402861412174894417527614220368601826758623414981689898409057498976854125707427249761739343065313148259833797660318490257125941369044768726332306003646844104393130743164610912101389118918523421046613046457841082786037957651733792151690054185387738863785653237263260394641974027328348132088808115419

Factorizations

Primary (ID: 173181) 8119200612348378658014243388495899874846171275710613431923745994650842889242846048081955523613594083744114553788335780020615804685692574069381728440771088059266312802114149477087094010093348325734561370355641683 (composite)
(ID: 137130) 78926235587632120930258893065592351788448061634248925881683843186726748359102485631390438708662533576859497397180140178555376297157319334112315026575319442725347004871450743725419332917725785664978233276926619630260916866586602096825737047982858101147440812722379418438192957503230493563324202554341593785260455613644304421006015709021181256242257099337828672431893380862662979325499633264803420794285502859461975218429158466747442808183371779644821866169600448132098393 (proven prime)

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.