package firstproject;



import java.io.ObjectInputStream.GetField;
import java.security.DrbgParameters.NextBytes;
import java.util.*;
import java.util.function.IntToDoubleFunction;


public class Test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
    
   
		int counter;
        
         for(int i = 500; i < 600; i++)
         {
            counter = 0;
            for(int j = 2; j < i; j++)
            {
                if(i % j == 0) {
                    counter++;
                }
            }
            if(counter == 0) {
                System.out.println( i);
            }
         }
    }
        
  }