Factor Info

ID 21165
Size 371 digits / 1231 bits
Status composite
Value 28373914245805574938050189426503454061039259995540858975832876969297355874393859467978274316952871483253713125523923478156764428053365471254221106802484286737896920916870632036180456498428866967130886845072735686760825074194490713783507157732312376806722947469299664158534909973642407591333643859508575514468397026498546445516220830505370240562721013500612971995526098263

Factorizations

Primary (ID: 7156) 72952844755822287959 (proven prime)
(ID: 21166) 388934994115374553710991623882589564999215495863262806483252150638818916551826581542005579046110066155613812188693296421404430734759039870312720412443705467921350946436529326181345352469655907023779197379893297981107007847754865960878180784919047036296190644712558894562593891251269767742599515933477175905325943032860857470889442165724393474333939457 (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.