Factor Info

ID 197971
Size 520 digits / 1725 bits
Status composite
Value 1295539498978650401929070733590030128528584918157529651516218752858192618667746961140573698518337085511435280704024023594605614005490257547767778130974419904351405223855233114275635293258754658929508459392413368807589503375265545667434035608649626479536671513124235098355475283345197269790509638420979979823345264953792234808356030986219166120866413207019239845169975254624638217526509969085235410289539477802080336416668732695348276578284358889730573956652306611219386700755285431763159248210216424168324604373125387651

Factorizations

Primary (ID: 17470) 566071397758980021514503314913468700952468138140520705435915823851 (proven prime)
(ID: 197972) 2288650343591924173675386605636220563378252992230823086920772512727008275815690103091140773009601360222401595028169401487762773197257351804338371269923972942169543758164204668419020500844649678197760360606737381138520312895674490373535268493340203247888556128905757274019521122181792566963405442894937876050087560456125430631792776780318665091203089160946079540153009672213088654531110419228442106263956762424346015903700709121307722418744665216773433801 (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.