Rules of Divisibility

Any whole number is divisible by
2:If its last digit is even or zero
3:If its sum of its digits is divisible by 3
4:If its last digit form a number divisible by 4
5:If its last digit is five or zero
6:If the sum of its digits is divisible by 3
7:Has no rule
8: If its last three digits form a number divisible by eight(8)
9: If the sum of its digits is divisible by nine(9)
10:If the last digit is zero
11:If the sum of its digits in the odd positions and the sum of digits in the even positions are equal or their difference is divisible by 11