Factor Info

ID 198117
Size 647 digits / 2149 bits
Status composite
Value 71933778287581317655527019625224110355308881547636523320151814776501248912296637556064434416890432892137356543871281188468399228190212586116559361402888773900926888550784109209892212568652458807626248869528876258575185300116224676220199839008108872596072219931157080396551387192344478700550835140596546467027107651759827410124148783202057428818220135952763894863969736913157916252912921050850404113393895132894529352281389909906477837869113336869507008037765144491754162495593415585833768979957465906669678654599961723286004162956269830553367341930311105008119660987898317783477777927597931571914828984300745931299566403286737889920221698938560821

Factorizations

Primary (ID: 31267) 997561107178544372687555166048345318126823911258786172052443007987903576091549985832478556351050080308086441446472254075996624782769445803941 (proven prime)
(ID: 198118) 72109645985533141027237667011468491474912792314852677201094448329676915864023468604077240352129644902769210673067713478816061674966373964953416647407098912352265169460673378529546681443303683906306486053399030543976192022115567309071890853940779834271051236693168842435643175878469650401776179029522795358868948642892923057139055895392553860757468284280100796931754773787049148914196317308186006791182950448462925637566022085669027928462324684694278532904914059367720873637338856156683526130217404471897681 (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.