Question

Write all the twin primes between $1$ and $100$.

Answer 1

Twin primes:

Two prime numbers are called twin primes if there is present only one composite number between them. Or we can also say two prime numbers whose difference is two are called twin primes. For example, $(3,5)$ are twin primes.

All the twin primes between $1and100$ are $\left(3,5\right),\left(5,7\right),\left(11,13\right),\left(17,19\right),\left(29,31\right),\left(41,43\right),\left(59,61\right)and\left(71,73\right)$.