Which number among 34623, 34716, 34782 and 34783 is NOT divisible by 3?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 34783.
Divisibility rule of 3: A number will be divided by three if the sum of all the digits in a number is multiple of 3.
Now,
⇒ 34623 = 3 + 4 + 6 + 2 + 3 = 18, Multiple of 3
⇒ 34716 = 3 + 4 + 7 + 1 + 6 = 21, Multiple of 3
⇒ 34782 = 3 + 4 + 7 + 8 + 2 = 24, Multiple of 3
⇒ 34783 = 3 + 4 + 7 + 8 + 3 = 25, Not a multiple of 3