27326
42356
45326
73545
A
B
C
D
By Team Aakash Byju's | 24th December 2022
The long division is one of the methods to find if a number is divisible by 3 or not.
But when the numbers given are big, we need to find a simple way to check the divisibility of 3.
One such method is adding all digits of a number and checking if the sum is divisible by 3 or not. If the sum of the digits of a number is divisible by 3 then the number itself is divisible by 3.
Check this scenario for all given numbers.
27326 = 2 + 7 + 3 + 2 + 6 = 20 (20 is not divisible by 3)
42356 = 4 + 2 + 3 + 5 + 6 = 20 (20 is not divisible by 3)
45326 = 4 + 5 + 3 + 2 + 6 = 20 (20 is not divisible by 3)
73545 = 7 + 3 + 5 + 4 + 5 = 24 (24 is divisible by 3 as 24÷3 = 8)
Thus, only 73545 is divisible by 3.