source_code: import java.util.Scanner;
  public class Main {
      public static void main(String[] args) {
          Scanner in=new Scanner(System.in);
          long num=in.nextLong();
          long lcm=1;
          if(num==2){
              System.out.println(2);
              System.exit(0);
          }//End if
          else if(num%2==0&&num%3!=0)
              lcm=(num)*(num-1)*(num-3);
          else if(num%2==0&&num%3==0)
              lcm=(num-1)*(num-2)*(num-3);
          else if(num%2!=0&&num>2)
              lcm=num*(num-1)*(num-2);
          System.out.println(lcm);
      }//End main()
  }//End class
  