Factor Info

ID 166428
Size 988 digits / 3281 bits
Status composite
Value 3951137782268099509343476558437792327267977322158968600260494407977429777103256130788355459056873713310719026661083806447212424138357596618386266337825295388089507715524931236017256452959246886728100374888762910688826782719465132209232942685532085123105137475903062273498352880203524124168958807463056901247137734614519305909349739857964899373197323243881842025585230780626354646288262843403646145670560806304434359341903945753467240023923649693569869782323596068939175451802420719647917878118381814738868348732974365473825107228511471247594019916055010279627035928567208169467415618213132471110556474808707499108347074959483788971570297940613703495449373647536865641311513780994711864902591698654030479513147284433022082905885520897734978848628788742033923614621806712063396426171413950496599015043804640282042470832895297300548543220808741419699588665508153717183875024568147026707505154262983873976340005036980314809218747947513025162507438661477645206961698060281802004095487297904049

Factorizations

Primary (ID: 22181) 311801233155896169643 (proven prime)
(ID: 166429) 12671976124907071710210068186268260851088113578470552374917636654943418248097697371891454218626545029287126495463087315483768129163166650279052945883770780493399394476414479069647128885908110792437706436783895163461818661204890857659732650122363813518348542564878764249794376903536415183283655518519989953801023783924867190706461599942889028832786867438212414827028972454650804587491951602082209286244891390098418323923083499356060883584309305557088391597900517446789123317162451135490902637034132828950676801363014985796646639228672361529356411407805549768900629996667768500765751158230676891334496853739205389671342809126287869376098187672992543491820241383913968382747391748385376418574094237669649330964418833265715763472267489524786784841863991855741487115754803487619905607215135982642317681586860112264786551795175576123211948352154948820704267258409649964189954679757603706703533236777047126648971845510009557499278747615004148088709355228532779250854350765843 (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.