Question

Write three pairs of co-prime and twin prime numbers.

Answer 1

Co-prime:-Two numbers are said to be co-prime if they do not have any common factor other than $1$.

$\left(4,9\right),\left(5,7\right),\left(11,17\right)$

Twin Prime:- Pairs of prime numbers having a difference of $2$ are called twin primes.

$\left(3,5\right),\left(5,7\right),\left(11,13\right)$

Hence, the above is the required solution.