Factor Info

ID 161721
Size 445 digits / 1476 bits
Status composite
Value 1800186265956870828823344393562318583457451604590064192378791918445775043194553773773964679603770160540026250228206699872048631015199429938518249651328757471683720879922194510382729053709854376984930207409078648116706257072065595198993263857610274875853481929233215598522833598520365934071825938950133520910460825171098220050052594292473910078824176449041935184066338181193527125906791934269006460775158751735716824666012468036993951125742673127

Factorizations

Primary (ID: 161237) 515678644469617821212749 (proven prime)
(ID: 161722) 3490907147819521919174780881223121582445198127159092712874540567426881536657338205621546483467361709119164001993519312117993029156370122162986733365003445395441934685104298806496339856472489759202781746615801028502136381057052967796264526917345822759428074559473107774135347716822299847617679022785088588760531600387367344427550210175155659245525528789952257563394231942845408414052095675690571576961912261409910890245123 (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.