Factor Info

ID 144872
Size 1002 digits / 3328 bits
Status composite
Value 644502643773854376492584238859079190672998500942025534934227990183229661611961399677806309980021431606398113187256178943516037747292256496624823079891304332473400033891947825189865397713789983188617888694191243001761656198733512073647781021038499935025685747009808653619440164167150472209201022116530161938146279304217455489809772566968875468057036067362909051150919388749676637894461837954147776257398654605245991045893824381239272954481306087093116294068740279835577646140136505137193319087932512594717622163730851210120224858643006940256348055865293833805077377823995431019659838005349323283862455410865746803631831860119631243469305623984138773295863844167773926053838627098888622629740692385539071574691125800607971243844422421107806949610749202209659827516710414388907880888788434819770247913768267024006244277944446489939150361798377646934106499269590979341657840865716728113957383378602867256033228924617857537927246607020581627196670994630787023077054287531317785264888450109414204032874901667

Factorizations

Primary (ID: 143142) 87728430468489003278234446945154202781697 (proven prime)
(ID: 180727) 7346565307643933876350253193988051640125675455791315971756625500541224357322059047026449961080236734403772165760056933431915686021578830014882927357069771712353050841797626161046920878787113556641285099494666674993544620960427247349558784852360540618000332502019651945661968068861650838231547609124729679180849361791980400010342779200214286967434176157487478244036962435068265978706145789827204005506161069187480181138551942389693846590510524287056092235494957933397424813501966299904599057809887415044148901197978624561860974684104297801320621833516378625283250668600552185375950278241552171463409326007495417384800111412736542662668832458914417236006506245427699433237648933382292827584562397441794716518557724780471334657978680022255803039627922546311506272613500986556733413857715799948123109075773535648136291277227788534605846221962400658434552313302242622059916318424554627532143338584381134572847117620718005489387640982548281876185615118738633057999011 (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.