Factor Info

ID 155690
Size 514 digits / 1707 bits
Status composite
Value 4288216720645156956777988293050311403940224204387625006492377927985266396102097130790803161788751081069693654810313437338450361041655725130456477222682611836106513964992267029037421000255928068870492980286736799427745647533435538295133327469812719438679130173160822137634295291249531396991247802258195761139775402488244185460242122858062482315060463698026651403579476686395219832955368976141885680057388578252687320659710013979736767797957199962348800625167358063473961214934676950856365471532626149899749679477177

Factorizations

Primary (ID: 188825) 281025407208902787266470275952437229 (proven prime)
(ID: 189618) 15259178033883150408904132852279213261826019299367346207966333058618676589406980503870272493612578561114515012786497852428825687843223692304535463896419403315667869681478219524922350181690339159436814637094661634850286837717863957171919233141697920733234974441396903736022902265141682482958195040675881855433394734826931506645034510237574932616793313864865826763812425078146621347536386712884179236602428248313193357641825180787780814888664565004775736211219155168677935540690813 (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.