Question

state the criterion of divisibility by 8,by 9​

Answer 1

Divisibility test of 8:

The last three digits of a number should be divisible by 8.

For example- is 2128 divisible by 8?

The last three digits are 128.

As 128÷8= 16

Then the number is divisible by 8.

2128÷8= 266

Divisibility test of 9:

The sum of digits of the number should be divisible by 9.

For example- is 666 divisible by 9?

6+6+6= 18

18÷9= 2

As the sum of numbers is divisible by 9, this means that the whole number is divisible by 9.

666÷9= 74

Hope it helps.

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