Factor Info

ID 161943
Size 647 digits / 2148 bits
Status composite
Value 25665078815348525632437425431668152992892261294128850121246127851558207821230256322381372613702220607149193386989070930144107046561915778435857273138695035103233130718337355733698752161440037940644128565258894937089692849467304646157215397192405872601275060033814603100996426972610200441744449619301948101814062620627854149877528660697498200457008263406241140905492038781626666702963663209829747744152109974612005755665101936770606943860383463650829298459897894836179269963166346346117832685123718670777818863329346977820525573382634259385890830273284528298331447248683268202848210857947836678818815376357273849615759353871738201658128662092075243

Factorizations

Primary (ID: 160969) 326258383416172657566960974917985946039371428266734293 (proven prime)
(ID: 194222) 78664886850157504197533815095606297750645915017805904004144894203959112125657329054953969757346811897303672295279586408703767577045282480054708332580728939776944497674588548513023819433565885260709663870210534513472925339443718000808221756362434103793049304090565935333283793646833981776700332901178475775152702807101987640190333319287573196882958198964999853921323030715843419845259715542271977065104787673979609351965831139845933769721843579675824152404960677162226363892397539108776681753463328743931077118929070432592702724612887785317487399311498776128689483389448044737073702716149929151 (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.