Factor Info

ID 164505
Size 647 digits / 2147 bits
Status composite
Value 16162787677596109709444709461887871939346168759928124878057986338601399463650036567894284469835718895854900413726982554720054879383633678717277538129918502503342861046902591074834815518197422144563253047975561096722791476251466034935490603311536253238804570625395086316379569989623839831063286687627376359978279186990938517562252072116399059597017877862335564021647517700235627443913060252765354389977300625243985908033518994411092408284179221341214169709170220265227647215612708761147742012005677135576021507202073758999041371940228882351286996912766851460098028488957478538677973872159356550096639584254268577223313870068872079358273477304202663

Factorizations

Primary (ID: 163529) 11977483948858405223691616891903180953084889 (proven prime)
(ID: 196179) 1349430961177502813160834767479490651660623555235168163230013845501362867054928399702145084258512561088824722176972623918554973307292008407288717103527406517591172494082827405917640705701420224396904566207793865325380486934792826290225902292498975002768270599387751850261246526657005601424348227706387067727990007490658181511828473211492438172874064637481741743713701512820106041378735248866053857657758510766248492048917912223432300241608975851723766989766371081408396341687264505283994675932711337347352351295983147949506664198034524852512872011613629153571186433878246091279093729564054952039300035967 (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.