Multiple choice

Directions: In the following question, four numbers are given. Out of these, three are alike in a certain way but one is different. Choose the one which is different from the rest three.

  1. 13

  2. 17

  3. 23

  4. 37

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Each of the given numbers is a prime number. But the number obtained on reversing the digits of each of the numbers except 23, is also a prime number.