Question 23For any integer $n$ greater than $1,$ the number of prime numbers greater than $n!+1$ and less than $n!+n$ is: Here $n!=1\cdot2\cdots(n-1)n.$$0$$1$$\dfrac n2$ for $n$ even, $\dfrac{n+1}{2}$ for $n$ odd$n-1$$n$