Factor Info

ID 157531
Size 822 digits / 2729 bits
Status composite
Value 287397150478496931901251706010642331263518255556572254616987216435722468291963331332104266216992754340423617619716638159488814198651844017256559732052379840955979719322413139089959667818734494905005051340826110321599874402611676131131112115586006757692307810795213414418121399933076489864188238870020365064799886103421144548435399658802707682701957937705506525234298209372373125005313510997338018859859693073342534218555910539996579207887076783210651525837827656948415059176360359834806791489583515813854423163545554007698280335487521705696558668949593988656542617238790286410232852250607015057972768510679737720325695764252945947962055897354103502420146852621106306463204513710922395791304615455603089672539180177625061431229126764163432794594685392013378902380362697233192084650548453322168288692982829772585410350397721

Factorizations

Primary (ID: 10444) 13299213974872825932452460424235657 (proven prime)
(ID: 191710) 21610085454786825051334424310785870428195715736295641227953563129043851813622592320693752005492866376781655288523057381978215836526175164078893977380785164017525280441731720427084323714990284544175403582395797367135241225397705488783031773885550882131373828061818017047146025970972390296727719227159700297933378505682742791087110012559907189109711056702531005198348923286831611827538876099789381367745182905822491993305767238486587251965874069293834724690797419796171674390150908397413962558348412497300270222871531680621149544025715441456542137553856312313483161071131343372432936103926492958691791875387508483106601501688381014866592695760596076347861044951383560286423502998430113046924807845181521612945448746005662980696102546107480418469168389168599251865757933163031679911187764753 (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.