Program for prime numbers in C

 #include<stdio.h>
 void main()
 {
     int val,i,n1,n2;
     clrscr();
     printf("Enter the range:");
     scanf("%d%d",&n1,&n2);
     printf("\nPrime Numbers between %d and %d are:",n1,n2);
     for(val=n1;val<=n2;val++)
     {
for(i=2;i<val;i++)
{
if(val%i==0)
{
      break;
}
}
if(i==val)
printf("\n%d",val);
     }
     getch();
 }

 /*
 Output:
Enter the range:99
150

Prime Numbers between 99 and 150 are:
101
103
107
109
113
127
131
137
139
149
*/