Fait général: 5104 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 5104 is the smallest number that can be written as the sum of 3 cubes in 3 ways.
Culture générale: 5104 is a boring number.
Date historique: December 21st is the day in 1999 that the Spanish Civil Guard intercepts a van loaded with 950 kg of explosives that ETA intended to use to blow up Torre Picasso in Madrid.