Write a function to determine the prime number, input an integer in the main function, and output the information whether it is a prime number

Write a function to determine the prime number, input an integer in the main function, and output the information whether it is a prime number

#include
using namespace std;
Bool issushu (int); / / check whether it is a prime
void main()
{
int a;
couta;
if (isSushu(a))
{
cout