Fatto matematico: 7295 is a value of n for which 4n and 5n together use each digit exactly once.
Trivia: 7295 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 21st is the day in 1988 that a bomb explodes on board Pan Am flight 103 over Lockerbie, Dumfries and Galloway, Scotland, killing 270.