Factor Info

ID 155865
Size 646 digits / 2144 bits
Status composite
Value 1512681984598702060109659555660720809974738730095791594789767576088939163878833684708753696661244450588234952751486606602094925870500387430122486333111217249776543023045329317884517830549242287879383495013093920066498988163219421711653791462753657740467238083504128464907301807811639304394734889313241916558019278334228441415908043757067318698358016029943836023657617987664087687639275736046411492565323939775093771644825334237586318367164717957869468804557706248879996138837218187307431666057077559042898412833082261359930779521526073927720757396347469216777762271386530439028148030923785325990283331672501118709593462760781942712687167569717363

Factorizations

Primary (ID: 154863) 174885889899626761577 (proven prime)
(ID: 155866) 8649537052228079148646704130465592744246551672133581429996558727904629911219977129048054041614173778864396557284281541709342557291215700132779247348425544230621182347924131278325916393048068465093218502416193746276241065727864807287656996223929794264681696283481545218846803150233590543550875151131015047199055394215850271510868247776289909770009477091937802202203091965809437761910135784574713600798473986008704557108867976150856671770284798214244261457162096604130136869487475872571085726968111107944962912610026534154524907953263440738448354378486892646866040073391975893861953332275460930891951962511901555320805558116219 (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.