DIVISION :

Rules for Divisibility :

8. Divisibility by 9 :

A number is divisible by 9, if the sum of digit in the number is divisible by 9.

For example, if we take the number 7983, the sum of the digit of this number is

7 + 9 + 8 + 3 = 27 which is divisible by 9, then the number 7983 is divisible by 9. Similarly, the numbers 531, 729, 873 etc. are divisible by 9. If we take the number 5698, the sum of the digits of this number is 28 which is not divisible by 9. Hence the number 5698 is not divisible by 9.