source_code: import java.util.*;
  
  public class Main {
      public static void main(String[] args) {
          Scanner sc = new Scanner(System.in);
          int n = sc.nextInt();
          int[] a = new int[n];
          for (int i = 0; i < n; i++) {
              a[i] = sc.nextInt();
          }
          Arrays.sort(a);
  
          Set<Integer> div = new HashSet<>();
          boolean[] d = new boolean[n];
          for (int i = 0; i < n; i++) {
              for (int j = 0 ; j < n; j++) {
                  if (d[j]) {
                      continue;
                  }
                  if (a[j]%a[i] == 0) {
                      d[j] = true;
                      div.add(a[i]);
                  }
              }
          }
  
          System.out.println(div.size());
      }
  }
  