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 anand.oza
   */
  public class Main {
      public static void main(String[] args) {
          InputStream inputStream = System.in;
          OutputStream outputStream = System.out;
          InputReader in = new InputReader(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, InputReader in, PrintWriter out) {
              int n = in.nextInt();
  
              int[] a = in.readIntArray(n);
  
              Arrays.sort(a);
  
              int answer = 0;
              for (int i = 0; i < n; i++) {
                  if (a[i] == 0)
                      continue;
  
                  answer++;
                  for (int j = 0; j < n; j++) {
                      if (j == i)
                          continue;
                      if (a[j] % a[i] == 0) {
                          a[j] = 0;
                      }
                  }
  
                  a[i] = 0;
              }
  
              out.println(answer);
          }
  
      }
  
      static class InputReader {
          public BufferedReader reader;
          public StringTokenizer tokenizer;
  
          public InputReader(InputStream stream) {
              reader = new BufferedReader(new InputStreamReader(stream), 32768);
              tokenizer = null;
          }
  
          public String next() {
              while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                  try {
                      tokenizer = new StringTokenizer(reader.readLine());
                  } catch (IOException e) {
                      throw new RuntimeException(e);
                  }
              }
              return tokenizer.nextToken();
          }
  
          public int nextInt() {
              return Integer.parseInt(next());
          }
  
          public int[] readIntArray(int n) {
              int[] x = new int[n];
              for (int i = 0; i < n; i++) {
                  x[i] = nextInt();
              }
              return x;
          }
  
      }
  }
  
  