source_code: 
  import java.util.Arrays;
  import java.util.Scanner;
  
  public class Main {
      public static void main(String [] args) {
          Scanner scanner = new Scanner(System.in);
  
          int n = scanner.nextInt();
          int numbers[] = new int[n];
          for (int i = 0; i < n; i++) {
              numbers[i] = scanner.nextInt();
          }
          scanner.close();
          Arrays.sort(numbers);
  
          boolean[] colored = new boolean[n];
          int res = 0;
  
          for (int i = 0; i < n; i++) {
              if (!colored[i]) {
                  res += 1;
              }
              for (int j = i; j < n; j++) {
                  if (numbers[j] % numbers[i] == 0) {
                      colored[j] = true;
                  }
              }
          }
  
          System.out.println(res);
      }
  }
  