source_code: import java.io.OutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.PrintWriter;
  import java.util.Arrays;
  import java.util.StringTokenizer;
  import java.io.IOException;
  import java.io.BufferedReader;
  import java.io.InputStreamReader;
  import java.io.InputStream;
  
  /**
   * Built using CHelper plug-in
   * Actual solution is at the top
   *
   * @author Washoum
   */
  public class Main {
      public static void main(String[] args) {
          InputStream inputStream = System.in;
          OutputStream outputStream = System.out;
          inputClass in = new inputClass(inputStream);
          PrintWriter out = new PrintWriter(outputStream);
          APaintTheNumbers solver = new APaintTheNumbers();
          solver.solve(1, in, out);
          out.close();
      }
  
      static class APaintTheNumbers {
          public void solve(int testNumber, inputClass sc, PrintWriter out) {
              int n = sc.nextInt();
              Integer[] tab = new Integer[n];
              for (int i = 0; i < n; i++) {
                  tab[i] = sc.nextInt();
              }
              Arrays.sort(tab);
              boolean[] done = new boolean[n];
              int ans = 0;
              for (int i = 0; i < n; i++) {
                  if (!done[i]) {
                      ans++;
                      done[i] = true;
                      for (int j = i + 1; j < n; j++) {
                          if (!done[j] && tab[j] % tab[i] == 0) {
                              done[j] = true;
                          }
                      }
                  }
              }
              out.println(ans);
          }
  
      }
  
      static class inputClass {
          BufferedReader br;
          StringTokenizer st;
  
          public inputClass(InputStream in) {
  
              br = new BufferedReader(new InputStreamReader(in));
          }
  
          public String next() {
              while (st == null || !st.hasMoreElements()) {
                  try {
                      st = new StringTokenizer(br.readLine());
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              }
              return st.nextToken();
          }
  
          public int nextInt() {
              return Integer.parseInt(next());
          }
  
      }
  }
  
  