Factor Info

ID 21530
Size 612 digits / 2032 bits
Status composite
Value 289881859539076489565702752918557838578886204668726314723592521956349869715412629171483334923835202750293729561295267358261849533354540264461422660715878639348228695776631494068416701397137274971037766291657243910789935405649007740269463112446876372412893160732973854878242070224876305112105655345526392247642977095179075987524954694294798975107811032971205222395268138641237532664155218363659751955444865817883929461121195378469565707472885907069009164168272023552488115565822727344574987484669111900547390480641837342039078776832737229820242659060611821719355838393597998744353247142962780738349245132099404321

Factorizations

Primary (ID: 21531) 425611355361831015259 (proven prime)
(ID: 21532) 681095219587445252193344076046469331112368709547073312308200281244305103752874210014029180389563243153337410754782403328202150639244893998366624443455102435582582480032615737381135551957019756609007678909081080194841245727575107257964642228875003254587383101465165980224190337161962229568652709240075497568727999374162932858667889828169516859525694962094011164394922119557975866786393963040103304154316477631305503944069258689755486161658328516002706643364958743621398581568959757330665563114969344331682809732478799717593409810041819194615145751047219895812413653865903469024644760012301619 (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.