Factor Info

ID 139842
Size 644 digits / 2139 bits
Status composite
Value 42246073833394322278127437645834339323852549912556760469648114973309393972285169943425581309958376308611450377534443028185034593727066555503652536355385612212001090130203807368258057430248699806202803890968487729737612712812526701890776729058265317953273146440679657432819401629611288467833905715180349395085158056112739441324766780193138496505859239172509040379832033799469155653324766054001631681497149741226880866234918797965239521122335452173048140819304508419610997199019571292653685105493196608120677665938119677664805217963997165266119633496063911609383675571856846996410905091857897263420263202582099656700590304386126005603546433119577

Factorizations

Primary (ID: 138849) 20400155254263793825825777 (proven prime)
(ID: 139843) 2070870211860988590011246887271066066541919571716898849232246420949647925387197910196445623203156887483062808690443997838127333970391088379300986222868336629444571120182783188838551804278739278116374824395958782579733487436538985771238292027224340449606697413078935423338755854043103731629881147475005265109597040962591900227023402888817415325516293685450914578292783503657468803853799385654180844614703654043910789678630487616372556448973922829046309367083173782670145530036928065687091985816631227328029677508605980058784665024902389070457899158362003696812628644160209931474890987971422337571476192947291258747879401 (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.