Factor Info

ID 21636
Size 544 digits / 1805 bits
Status composite
Value 1600561961781829446297371376807385180380452865041546435308486984896766808889491029111742842947930397891899795981264050216301200347494330922902535463579481235249082677528533660907440539942526087339754126523999253280034663146375566965833779583472039244127899291881313660381121860018077863190008240828524003799093198775162328550019421537478597583076291786345998099270212114763508908099270405768684513597479258043925124785210644549551860500047080654040492784020590343485486146565363825895705174032990587140711673946440570077280858868340997782805251

Factorizations

Primary (ID: 16287) 715560993113581787837326861 (proven prime)
(ID: 30235) 2236793197484662884502275314128332140531135431880115971358125916123844967261745532611038923591488543900893872977355858250627070833369629300229781018264333257026645874045371673233678799962831883890694637844789152213323448143381648092538401626543599056872505236851519946503082629113027430328889176401643655517498717193223048095877680138209655042768307013970611649599503554586134436267882188143800541568153690351853098095077918533973908842794105183755791027232130950150646847829224406706524027760774918284351111683526991 (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.