Divisibility rules:
A number is divisible by 2: If it ends with a 0,2,4,6, or 8
A number is divisible by 3: If the sum of the digits is divisible by 3.
A number is divisible by 4: If the last two digits are divisible by 4
A number is divisible by 5: If the numbers ends with a 0 or 5
A number is divisible by 6: If the number is divisible by 2 or 3
A number is divisible by 8: if the last three digits are divisible by 8
A number is divisible by 9: If the sum of all digits are divisible by 9
A number is divisible by 10: If the numbers ends with a 0
