Question

*Which of the following is not a pair of twin prime numbers?*

1️⃣ 3,5
2️⃣ 29,31
3️⃣ 19,23
4️⃣ 5,7​

Answer 1

Twin primes are primes number with a number in middle of them like

3, 5 ( here both are prime nos and there is a no between them )

29 and 31 are twin primes

19,23 are prime but have 3 nos between them so this is the answer.

Answer is option 3

Answer 2

Answer:

19,23

This is your answer