Divisibility rule

Every no. Is divisible by 1.

Every even no. Is divisible by 2.

If the sum of digit of a no. Is divisible by 3 then the no. Is also divisible by 3.

If the last two digit is divisible by 4 then that no. Is also divisible by 4.

If the last digit of no. Is 0 or 5 then it is divisible by 5.

If the no. Is divisible by 2 and 3 both then it is divisible by 6 also.

If the last three digit of that no. Is divisible by 8 then that no. Is also divisible by 8.

If the sum of that no. Is divisible by 9 then that no. Is divisible by 9.

If the last digit of no. Is 0 then no. Is divisible by 10.

If the difference between the sum of odd place digit no. And the sum of even place digit no. Is divisible by 11 then that no. Is also divisible by 11.

If the no. Is divisible by 3 and 4 then that no. Is divisible by 12.

If the no. Is divisible by 2 and 7 then that no. Is divisible by 14.

If the no. Is divisible by 3 and 5 then it is divisible by 15 also.

If the last 4 digit is divisible by 16 then that no. Is also divisible by 16.

If the no. Is divisible by 2 and 9 then that no. Is divisible by 18.