Factor Info

ID 28180
Size 669 digits / 2222 bits
Status composite
Value 643587203117926332272074021090245800698977315497639967148557729348208816926445269228526086481587477374646451843666867339303540217112897558622484096883081795544348725408485725607883347184889546790935381384517836583060833563352195969891866671019274940681792806146654058719924304891440861074626689299776181707572578371706879425979086819152804206867242370912705618337107846293954078736270813925987222522682281518323321687013935156882517255615836726746961739960957675096403394908534197888109050847083089125899633299504105820321501761926061258761968585566021826409648432338960912183082297012721680205420849805627817928989360744021248623506659030627135053404648775391548940417

Factorizations

Primary (ID: 2149) 47198858799491425660200071 (proven prime)
(ID: 28181) 13635651782429558972198388388857829972147073309454882592192841851468977313677716892897407395853706796237730059672992314277518379499523488479016073279423142217971120961628611603281223475560613319369726981014054035369826102200087073520993097067941648205300645004529153261150337615266411683792159172903669897716235187780298008048093803771051900911850106577373795732563148766615845507319016786302645898458253564574173101482264045208158577925757986511785136256445534587171753597804973420043056226156734755217826391852734146076036093978987825267799306946615372594629912652676522410840465222794251841871590477401792131053159512269490481280913943993527 (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.