Factor Info

ID 164171
Size 427 digits / 1417 bits
Status composite
Value 1891105653497140697247925679637072159191438737903202023537661298230347806634493534555511277544382758653413100319156178002234924896044051144153035900510585260526391897021030259867107541338844920393546456951879867226735534050418126744527303992467779445399089209828796484554412224717922838184437501492922543292491759677088940972505038853026840512967532304454040969448206775636449269817737672326493570234376056890125865480371292161

Factorizations

Primary (ID: 163561) 715589319888957668605573 (proven prime)
(ID: 164172) 2642724815667448784749256087818655017826506588049067740946360178441966446162884939455990660071698738428364447144209699821594272690924680921083225795044345853942506869268182991813153390563700702316490468727661901837948199002246959156999541109392276586148870411461362845807916168081852298919599764276365163486161101261296407045933129159224228202341151612775993860445088702433900980008391422338033238356557 (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.