write a program to find prime numbers between two range in c

 #include <stdio.h>

int main(){
   int number1,number2,i,j,flag;
   printf("enter the two intervals:");
   scanf("%d %d",&number1,&number2);
   printf("prime no’s present in between %d and %d:",number1,number2);
   for(i=number1+1;i<number2;i++){// interval between two numbers
      flag=0;
      for(j=2;j<=i/2;++j){ //checking number is prime or not
         if(i%j==0){
            flag=1;
            break;
         }
      }
      if(flag==0)
         printf("%d\n",i);
   }
   return 0;
}