*Display Prime Numbers Between Two Intervals

 #include<stdio.h>

int main()

{

    int n1, n2, i, j, flag=0;

    printf("Enter the number\n");

printf("n1 is small n2 is large\n");

    scanf("%d%d", &n1, &n2 );

    

    for(i=n1;i<=n2;i++)

    {

        for(j=2;j<=i/2;j++)

        {

            if(i%j==0)

           { flag++;}

        }

       if(flag==0)

       printf("%d\n ", i);

    }

   return 0; 

    

}