Factor Info

ID 180138
Size 639 digits / 2120 bits
Status composite
Value 151857902367101844551812572498882461677360924532829512406348017896184099877520937002839249228516223596017758573786171996294936600497945711023269681792321166090205200748711046582856277367361205932874535643999642762729433395396980705583755891808179576873699035417492248220498212793286456924944987827986039469747614493529505640472224427580118483607324421466013004094977741332644940318643497207651840663266977501755968533649912865863974582722866662402701668810469161812798472133118516570943297453475477294757664764700164973478766767879457543233818649555481730510716485385226964140678065922222617469671729362748743877749431378130919450488426629

Factorizations

Primary (ID: 143129) 73355903553709150436991421893506428181 (proven prime)
(ID: 180139) 2070152435051334566278449974364515081453055208817153868878132650166904484423588690264622820404730340326304650282818152223279344553110596815459316738648220476029288181493992726026689346250124871422838860162278202483061552502273845374761522755835737005481532028216154456338090431753424939964133264737522135325198197404413011101778009443072819173392734860212144557235183220691161570031274097935022482720004309840453358392827545605160465931824652972311161095258091975881775445930500192733973145045070305239955338761150995801553416937640182219196741795636649366674820296518687967052478377353074720132633009 (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.