Prime Number

 

#include <stdio.h>

int main()
{
  int n, i, isPrime=1;
printf("Enter any number \n");
scanf("%d",&n);
for(i=2;i*i<=n;i++)
{
    if(n%i==0){
    isPrime=0;
    }
}
if(isPrime)
{
printf("This is a Prime Number.\n");
}
else{
printf("Not a Prime Number.");
}
  return 0;
}