Question

What is the divisibility test of 9​

Answer 1

Basically, we will see if the sum of the digits is divisible by 9. If it is, then the actual number is also divisible by 9.

Answer 2

Divisibility test of 9: Sum of the digits of the given number should be a multiple of 9.

Example:

93 Sum of digits is 12, 12 is not divisible by 9, therefore 93 is not divisible by 9.

621 Sum of digits is 9, 9 is divisible by itself, therefore 621 is divisible by 9.

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