Factor Info

ID 128137
Size 609 digits / 2023 bits
Status composite
Value 521858184084654621421689439138473667596809413772596917533728378165055312785922010582223674558452392904109799554546321457664627478617477394663586253565495478366238215990892645250214934388941372126713929639319165335676545491683439813035551387356154330416150817345235699398845776666816960140026215433537581414510672817734756472259122853856531001628095471968198071223172382723703333456362047444682684022319530472910254091411321323020293115732863946306474678617603451939776513110299714896039996405329829502436741615283112789853235791747200210188998839570582356400944626432548787625368398550947644133048246943249653

Factorizations

Primary (ID: 9143) 195506819119444628118393349617623701189123224437 (proven prime)
(ID: 128139) 2669258220429774707400311072414186617255881662948917239976803961006471264530452398390733217803467722447803752798346869263172663722072085917852841257266527855116660359068446340363266866859203164104504822500161016811087060239383708037337296516684691788765754484511915240544014741714863351373533130441931683938363286417480831583316909765924799876621229301429458804056834908132926062687017851893249052927059951271898595457514148939377533072282833628381073407387485792818623749300706803076522264373115571111487242121266230350758593396981913018464630215467310272285569 (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.