Question

find odd man out in given series? 2, 3,5,7,11,13, 17,19,21,29,31​

Answer 1

Answer:

21

Step-by-step explanation:

21 is the odd man this is the answer

Answer 2

Answer:

'21' is the 'odd one out' in the series.

Solution:

The given series is  2, 3,5,7,11,13, 17,19,21,29,31

The prime numbers are numbers which are divisible by itself and 1.

In the given series, except 21, all the numbers are prime numbers.

For example:

19 isn't divisible by any number, similarly 31 isn't divisible by any number.

But 21 is divisible by 3 and 7, hence it isn't a prime number.

Result:

Hence 21 is the odd one in the series.