There is an infinite number of multiples of six. A multiple of six is any number that is divisible by six, such as 12, 24, 360 or 7,907,560,848
If a number is a multiple of two and three, then it is also a multiple of six. To find whether or not the number is a multiple of two, check to see if it's an even number. An even number is any number that ends in zero, two, four, six or eight. If the number is even, it's a multiple of two.
To check if the number is a multiple of three, add all digits in the number together. If the sum of the digits is divisible by three than the original number is as well.
There are similar rules for other numbers. If the last two digits of any number is a multiple of four, then so is the entire number. If the last digit in a number is either five or zero, then the number is a multiple of five. If the last three digits of a number are divisible by eight, then the entire number is as well.
If the sum of the digits of a number are a multiple of nine, then the number is too. If a number ends in zero, it's a multiple of 10