Factor Info

ID 153872
Size 841 digits / 2792 bits
Status composite
Value 1972994501611974849468602247325700659430367977967545192661202821432615631705742034441747725871444738848635163561270560672264448845022487379616840275773847637112440136674852556331114758622806152405235414585263286361275710208188195977799541696335311185922706848401502237025312614144651349754523675534111413202608666189364245593065920820702835476065267886095342042273194709944333053210884802312186157414423702921223245587183702441410421617789421007299729481963359207163152744904495122803137544222186102667200034629686087206837067000026736377694734585154050790880708636549746801290988516785214892247734080012192490307364849516488517118860518430225435021888497777549091329007598507929776649668623598002635830878742215217683354262520663500686547161621394288385130655059760590933908349276936021594928033912210658032284683748341971661581166803882651

Factorizations

Primary (ID: 152310) 533038693771510650544161151 (proven prime)
(ID: 153873) 3701409531176938358093872931763230987871081118343806701864044695965058634279734853973698011904725514301769853068134899880045205964488435278703734640048177703476630158296788575754624895663415915773836409637125895566573006800358895457122219686432362952616237398639907015344791550926479572059379348800162191796833605664791308630068555212998535962171775667436372193987969008495185318454959440600074004054846253252226431447501073004468363536453067565599767416604470219486073387568070881548610085802972631519109103423779761171113012969200228226191210921753852655729059715480441335402130518316199776544862371146931196292460528263585988806568057514722304864672398641165882784741031624026495393026977714446575455836172905869843625191252817622149520484323705508324641729293694619940899575689418754710388176756321864136246501 (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.