A number is divisible by 2 if the last digit is: 0,2,4,6,8
A number is divisible by 3 if the sum of its digits are 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 last digit is 0 or 5.
A number is divisible by 6 if the number is divisible by both 2 and 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 its digits is divisible by 9.
A number is divisible by 10 is the last digit is 0.