Factor Info

ID 21558
Size 540 digits / 1794 bits
Status composite
Value 823124842669529676147742233604728687502436494056213916363511841850984414522129793371651090424823216666530198971435306311987290310802759146734715436636973343480352139191103761381610280032145594001689372741995950521535337396922275793699610737541285836980989084642948459532291510052777191464411154892830273123458152709460515148388463308936231448084612981938280216674165147591295176369384392249480469046610290987985896156550731212665048327118299117196910975802389617932867360627300433684407349316754354026679624196858102279943562936899560759959

Factorizations

Primary (ID: 16420) 7752619982267966542535041531665354400879 (proven prime)
(ID: 30112) 106173763779497306431989396163153294697323470972179475359829852730098005802242456494317554452440546653456326952236700791760385296028185415378021223136636227212543326175528345898315624469575391420665892750168506090473477548535040413342454072781598093770344051086205414607630331416914395895122616664543524529020703021010485072453523147324165564552910415946376789562176137012639191457690812578261329124077697902676466101260359914682792441965013273351473339200805455636016998128678439926930026674155538521 (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.