Question:medium

Find the odd one out from the given alternatives

Updated On: May 6, 2026
  • 2, 3, 5, 7
  • 11, 13, 17, 19
  • 23, 29, 31, 37
  • 40, 41, 43, 47
  • 53, 59, 61, 67
Show Solution

The Correct Option is D

Solution and Explanation

Step 1: Understanding the Question:
Each alternative provides a group of four numbers. We must find the group where the numbers do not follow the property shared by the other groups.
Step 2: Detailed Explanation:

Checking Group (A): 2, 3, 5, 7. All these are prime numbers.

Checking Group (B): 11, 13, 17, 19. All these are prime numbers.

Checking Group (C): 23, 29, 31, 37. All these are prime numbers.

Checking Group (E): 53, 59, 61, 67. All these are prime numbers.

Checking Group (D): 40, 41, 43, 47.
41, 43, and 47 are prime numbers. However, 40 is an even composite number (divisible by 1, 2, 4, 5, 8, 10, 20, 40). It is not a prime number.

Conclusion: Groups A, B, C, and E consist entirely of prime numbers. Group D contains a composite number (40).

Step 3: Final Answer:
Option (D) is the odd one out because it contains the composite number 40, whereas all other groups consist only of prime numbers.
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