Factor Info

ID 180721
Size 549 digits / 1824 bits
Status composite
Value 821754705058518583891070067686079265429186553002658912896175717101331095496042074441406746507705306750304959256963018541223717740190318744958444643811614779561279866701219387341795287055371065714400156407010540850958291396647337941119441124778250236288342302795036997692879619219578488760142625101477983357298210031483341911009452609992317739660120230413370409623295222804311049170077737575724233201004383139285906072791146754579838134616468916340931899269037813496177698270160291969215722580618400685367087304968275404686531970193014217626730162189

Factorizations

Primary (ID: 143262) 397718589170793617043037409602425551586575429042234950501 (proven prime)
(ID: 180722) 2066171226172256501550805454971906893700460843353935601270940553711283490812412023329366641920704238929089401176814127664836726990524440367967078231804092537764383636875331953948689239076843689641927001469663445960024138883025031932335586271563181276874111507321128023134886841126588622148998138734598910003953174523055844505270968971776861853225094335205963590420067578168282649650783345513988264737384662711594454442723407868335194260424644127830330706511083822895020689111315847912315767689 (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.