Question

From the following numbers, choose the numbers that completely divide 324.

• A. 2
• B. 3
• C. 5
• D. 6

Answer 1

Answer: (A), (B), (D)

The correct options are
A 2
B 3
D 6

The numbers will completely divide 324, if they satisfy the divisibility rule.

Divisibility by 2
As 324 is an even number, it is divisible by 2.

Divisibility by 3
Since sum of digits, 3 + 2 + 4 = 9, is divisible by 3, 324 is also divisible by 3.

Divisibility by 5
324 is not divisible by 5 because for a number to be divisible by 5, ones digit should be either 5 or 0.

Divisibility by 6
Since 324 is divisible by both 2 and 3, it is also divisible by 6.

$\therefore$ 324 is divisble by 2, 3 and 6.