Fait général: 8179 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 8179 is a value of n for which 4n and 5n together use each digit exactly once.
Culture générale: 8179 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: May 23rd is the day in 1805 that Napoleon Bonaparte is crowned King of Italy with the Iron Crown of Lombardy in the Cathedral of Milan.