Which number will replace the question mark (?) in the following series?
31, 37, 41, 43, ? , 53, 59, 61, 67
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 47.
Given series: 31, 37, 41, 43, ? , 53, 59, 61, 67
The given series is a prime number series. So, the missing number will be 47.