The objective of Fizzbuzz is to create a program with the following specification:
The program can be passed a number. When passed a number that is a multiple of 3, the program returns the message 'Fizz'. When passed a number that is a multiple of 5, the program returns the message 'Buzz'. When passed a number that is a multiple of both 3 and 5, the program ignores the previous 2 rules and returns the message 'Fizzbuzz'. In all other cases, the program simply returns the given number.