Factor Info

ID 163997
Size 291 digits / 966 bits
Status composite
Value 354446388813418197852135647604734706965031594597804114880796726804253391992143475077007348160973502205790486114978660741378281147676816349424930038029533563443618901495448067309297655511229913880011851006936128707668037988716933759580594664124284296751352518199031843919075377207470394846321

Factorizations

Primary (ID: 163599) 17881783852634882214225337 (proven prime)
(ID: 163998) 19821645968569880427946203835330048169915092230660747048879856681593121272472559184097519722315480666045531268933608836785014745452873788117553532045164107040243179703430873675715220900613619251327619823755078899796988320896724339280084588117218667681492016398784633 (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.