Factor Info

ID 87817
Size 771 digits / 2561 bits
Status composite
Value 661744371291677241569434018963579014931652617265987486293768804860056810618060221839815599465283673153891106890715937367877715336851344023733438537458347776357481867940346715364956592510351661410001031978982936780302413542328590499529902506893409289331423816738640066912712611185431916984053177080161041620338094747946303315617678557728874175848936094942293455415155149467749109628861521512019648920128672981148489830401762011744100734122812507924000211743385310909288072120567319452543629208144729727127190289911809678180571246809304126538914204497146288077493536651058237042163539843940416301804519221310290148635771054170550813556081837729615036253774290468573921788886262771835576305931513929384930271796157698822882339866160033501802306262522343299446168686656359577

Factorizations

Primary (ID: 10912) 2957111053582540504996549489605401 (proven prime)
(ID: 87818) 223780696531492732411594909364464496705458113672071550208949259849283833801178327461496532554959467187915723454252654802199630237088625904186744741743680617425095288861929387226416574319175747480892953052623110592491766607575583845532773993567927518907780319309718472701588145865650933027708776050232179155993762965997464288569054827503692683395556903344390852237564020127336218088391298455302938855328034389202798755820679482079912813564808533473017883761326934799302326198601628512213232072775682249161011975513481102157533457543372546053194040229719909080506708543469483056797339135338839183519426934629278107223971618157772398813025515748412206663608163829807093214152028527455808732881366574809612579576285146105556553876599512763777 (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.