Fait général: 7788 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 7788 is the index of a triangular number containing only 3 different digits.
Culture générale: 7788 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: April 27th is the day in 1961 that Sierra Leone is granted its independence from the United Kingdom, with Milton Margai as the first Prime Minister.