Factor Info

ID 155687
Size 561 digits / 1862 bits
Status composite
Value 320602155408186237920819844842891533524932925573620238086595634690328228490874809801168439731215262096476854111396712394852050816832848454476474156912432489619277389534760898154917296372736043590496451179622319569107381903783503299477706129308296746251972977959914476905437026783124255881214003803556763700098823355804548439830088949807121749931594133551719138028972982740296198973785896590960137018814306311715850689836887684420065393553102376403168641825910626891921454141368066412910735694814868320055488024627342747511330870567773898321384644652270546078801

Factorizations

Primary (ID: 154819) 20561538346557397039189 (proven prime)
(ID: 155688) 15592323395484872201113234836896525420954743624726764018194943024301537186400390729730056567518997513072569819776684507378981474154182780524745186153203991943609453309892807347744160342220352693910150179666011351063684210576494969162959487968046282970943837082830373921413428149312785454209549024485133945992927237038843619175259696334709592118300921771547508783474507286349835126305772350030516032062819768049967790045007359978111275023448561957939055405067578432277158512600657526062768165675889927109562892734242082486510580717316304909 (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.