Question

3) Find odd one out : 2,3,4,5,7

a) 7 b) 5 c) 4 d) 2​

Answer 1

Answer:

a) 7

Step-by-step explanation:

because the number are all in series from 2

so after 5 it should have been 6

Answer 2

Odd one out is c)4.

Given:

2,3,4,5,7

To find:

Find odd one out

Solution:

It can be seen that except 4, all others are prime numbers while 4 is not a prime number.

Any natural number higher than 1 that is not the sum of two smaller natural numbers is referred to be a prime number. A composite number is a natural number greater than one that is not prime. For instance, the number 5 is prime because there are only two ways to write it as a product, 1* 5 and 5 *1.

4 has two factors which are 2 and 2, hence it is not a prime number and is the odd one out while others are the prime number.

Hence, the odd one out is 4 because it is not a prime number.

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