Factor Info

ID 164473
Size 536 digits / 1779 bits
Status composite
Value 20515661204683003466271516912329854007777400271292649034157000556130721173386364617150255424611651029329983019331000170413133105960918918080293511353249675500406217875147747998779878640942520952872778588094753874105227589994404524848732840294374550495942795377612325500185740881807677652891777391987926957560067717324092499459566079513297533408729061899776636744392862017341334586307837742491144762771983091006921064994681999856859008004840383924182381488289415109439088943012721869655986681147478247922450403250175297066756363324140031

Factorizations

Primary (ID: 163599) 17881783852634882214225337 (proven prime)
(ID: 164474) 1147293881513953051355156094401868915259871799047090355427248176841297205471052267939240800272001526689382006497378012475078322236713830950636326838038640166632134314420740968391987318458539072418005703797666744129487231214444797981370318263201098256983282317694815875319795410920388148950916244848256986435141013126580684780957283077387628224119857226189965558371686195867826215704960637893458719469316567590263373799058129721604925572764958358482391609564354956879192514153144598854640338463407525433552857463 (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.