Factor Info

ID 155380
Size 543 digits / 1803 bits
Status composite
Value 398305207985819498537141665334814558744639514286173721408690580014575809560036606951258834526737445186062835986536250968693498859191493427982286299483264319283470717973314572967971197068156038837579942416336410726777671787230744084236332167981308503559938201190651186302802704028961074860938896707788846358390992433537328086763097487524764265818945911265645692584950103467551401631122999655714374635123560989769072769732815077832177892735588015427906859658128182873016885275528037443031507677592172404800613235199540159594087569575203761042091

Factorizations

Primary (ID: 155381) 2973072122743845841639 (proven prime)
(ID: 155382) 133970920159926677579478421199961203367173288052973598940687739459383723339215707868301218026513711023240998253011878577512472928847857227731002409009164138286219651776717084637376171778478155339002576504472654647568190861079218120808262396083449798867707962139135650603822048547523000388525903710006020336518594435417030963562011450080610159300393726851605269403196101877182669298772587663793065970798369709239199161477556400561668542378771888467500468242534904497860653667816536352612512864880066470308514468926374471069 (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.