# Which of The Following Numbers is Not Divisible by 3?

- 3604218
- 1872516
- 1530729
- 3954278

**Answer: (4) 3954278**

**Explanation:-
Divisibility of 3 :-
If the sum of the digits of the number is divisible by 3, that number is divisible by 3.**

Then, the sum of digits of 3604218 = 3 + 6 + 0 + 4 + 2 + 1 + 8

= 24, 24 is the divisible by 3 then, the number is divisible by 3.

Then, the sum of digits of 1872516 = 1 + 8 + 7 + 2 + 5 + 1 + 6

= 30, 30 is divisible by 3 then, the number is divisible by 3.

Then, the sum of the digits of 1530729 = 1 + 5 + 3 + 0 + 7 + 2 + 9

= 27, 27 is divisible by 3 then, the number is divisible by 3.

Then, the sum of digits of 3954278 = 3 + 9 + 5 + 4 + 2 + 7 + 8

= 38, 38 is not divisible by 3 then, the number is not divisible by 3.

Hence, the answer is (4) 3954278.