Question

In the following numbers, find the odd one out:

41, 43, 45, 47

• A. 41
• B. 43
• C. 45
• D. 47

Answer 1

Answer:

C. 45

The odd one out is 45.

The numbers 41, 43, and 47 are prime numbers (they can only be divided by 1 and themselves).

However, 45 is a composite number because it has other factors besides 1 and itself (it can be perfectly divided by 3, 5, 9, and 15).