Prime

#include<stdio.h>
#include<math.h>
int main()
{
    int m,n,i,j,c,sum,cs=1;
    printf("Enter Limit: ");
    scanf("%d",&n);

    while(1)
    {
        printf("Case %d\n",cs);
        c=0,sum=0;
        for(j=2 ; j<=n ; j++)
        {
            for(i=2 ; i<=sqrt(j) ; i++)
            {
                if(j%i==0)
                    break;
            }
            if (i>sqrt(j))
            {
                printf("%d ",j);
                c++, sum=sum+j;
            }
        }
        printf("\nCount: %d\nSum: %d\n",c,sum);
        printf("Enter Limit: ");
        scanf("%d",&m);
        if(m<n)
            break;
        else
            n=m;
        cs++;
    }
    return 0;
}