Factor Info

ID 21791
Size 458 digits / 1519 bits
Status composite
Value 15561503939782951023507588294138308159552119134071642967642665367590207478981068590365235554873737609567689526694373809815765685851399459763752955853840987156172766294295432007794208967148438006110584790581265170119595629714048326344106488792287721271292504769379306373377841400438484815077850171736964848502890359942967383970658073210889227155816712257992314056369373305716697035087108628751735229569609475923365140232040347144447323783725409997444890015283

Factorizations

Primary (ID: 21792) 806543918439857063609041 (proven prime)
(ID: 21793) 19294056509513377772599025310935246427113962668382229822754053498235439303656618831666969245099288360698675293913572335134759621360825108767578885520106177133891205854921966209802346945268275702097139993918370022119340178325357260168978825975326367879228499714166307015255560341025739478921628011677213770925880518239123137582955825487275652683778716296142833697812938061458596229626924525635512529787240905155360869217776146429837763 (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.