Programming

#include <stdio.h>
#include <stdlib.h>

int isPrime(int valToCheck)
{
    int i;
    int retVal = 1;
    for(i=1;i<valToCheck;i++)
    {
        if(valToCheck%i == 0 && i != 1)
        {
           retVal = 0;
            break;
        }
    }
     return retVal;
}


int main()
{
   int x;
   int y;
   printf("Enter Number : ");
   scanf("%d\n",x);
   y = isPrime(x);
   if (y==1)
       printf("x is a prime\n");
   else
       printf("x is not a prime\n");
}

   scanf("%d\n",x);

   scanf("%d",&x);