Question

624 is completely divisible by:

• A. 3
• B. 4
• C. 6
• D. 9

Answer 1

Answer: (A), (B), (C)

The correct options are
A

3

B

4

C

6

Perform the divisibility tests for each of the given options.
Sum of the digits of the number is 12, ie, the number is divisible by 3.

The last 2 digits of the number form a multiple of 4, ie, the number is divisible by 4.

As the number is an even number, it is divisible by 2.

As we have proved earlier, the number is divisible by 3 also, ie, the number is divisible by 6.

As the sum of the digits isn't divisible by 9, the number isn't divisible by 9.