Question

If a number is divisible by 9 then it also divisible by
'3' explain it ?​

Answer 1

Answer:

Since 9 is divisible by 3, every number divisible by 9 will be also be divisible by 3. This happens because in the divisibilty test formula of 9, the sum of the digits should be divisible by 9. If this sum is divisible by 9, it automatically is divisible by 3 since 3 is a factor of 9.

Answer 2

Answer:

Every number divisible by 9 is divisible by 3.

For example, 7425 is divisible by 9, hence it is divisible by 3.

58302 is divisible by 3 because the sum of its digits (5 + 8 + 3 + 0 + 2) is divisible by 3. 69145 is not divisible by 3 because the sum of its digits (6 + 9 + 1 + 4 + 5) is not divisible by 3.

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