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

**Answer: (4) 1234**

**Explanation:-
**

__Divisibility of 3__**–**

If the sum of the digits of the number is divisible by 3 that number will be divisible by 3.

**Then, taken option 1,**

The sum of the digits of 123 = 1 + 2 + 3 = 6 , 6 is divisible by 3, then the will divided by 3.

**Taken, Option 2**,

The sum of the digits of 123456 = 1 + 2 + 3 + 4 + 5 + 6 = 21, 21 is divisible by 3, then edupilthe number will be divisible by 3.

**Taken option 3**,

The sum of the digits of 12345 = 1 + 2 + 3 + 4 + 5 = 15, 15 is divisible by 3, then the number will be divided by 3.

**Taken, option 4,**

The sum of the digits of 1234 = 1 + 2 + 3 + 4 = 10, 10 is not divisible by 3, then the number will not be divisible by 3

Then, 1234 is not divisible by 3.

Hence, the answer is (4) 1234.