Fatto matematico: 786 is the largest known n for which _{2n}C_{n} is not divisible by the square of an odd prime.
Trivia: 786 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 24th is the day in 2007 that Japan launches its fourth spy satellite, stepping up its ability to monitor potential threats such as North Korea.