Which number will replace the question mark (?) in the following numbe

1.	Which number will replace the question mark (?) in the following number series?1713, 1311, 117, 75, ?1. 482. 593. 534. 39
Answer» Correct Answer - Option 3 : 53 The logic follows here is: The given numbers are a pair of prime numbersandtheir preceding prime numbers. 1713 → 17 & 13 both are prime numbers. 1311→ 13 & 11 both are prime numbers. 117 → 11 & 7 both are prime numbers. 75 → 7 & 5 both are prime numbers. And the series is decreasing in order. So, the next number would be pair of 53. 53 → 5 & 3 both are the prime numbers. Thus, the correct answer is "53".

Which number will replace the question mark (?) in the following number series?1713, 1311, 117, 75, ?1. 482. 593. 534. 39

Answer» Correct Answer - Option 3 : 53

The logic follows here is:

The given numbers are a pair of prime numbersandtheir preceding prime numbers.

1713 → 17 & 13 both are prime numbers.

1311→ 13 & 11 both are prime numbers.

117 → 11 & 7 both are prime numbers.

75 → 7 & 5 both are prime numbers.

And the series is decreasing in order.

So, the next number would be pair of 53.

53 → 5 & 3 both are the prime numbers.

Thus, the correct answer is "53".