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.FileReader;
  import java.io.InputStreamReader;
  import java.io.FileNotFoundException;
  import java.io.InputStream;
  
  /**
   * Built using CHelper plug-in
   * Actual solution is at the top
   */
  public class Main {
      public static void main(String[] args) {
          InputStream inputStream = System.in;
          OutputStream outputStream = System.out;
          FastScanner in = new FastScanner(inputStream);
          PrintWriter out = new PrintWriter(outputStream);
          TaskA solver = new TaskA();
          solver.solve(1, in, out);
          out.close();
      }
  
      static class TaskA {
          public void solve(int testNumber, FastScanner in, PrintWriter out) {
              int n = in.nextInt();
              int[] a = in.nextIntArray(n);
              Arrays.sort(a);
              int count = 0;
              boolean[] used = new boolean[n];
              for (int i = 0; i < n; i++) {
                  if (!used[i]) {
                      count++;
                      for (int j = i; j < n; j++) {
                          if (a[j] % a[i] == 0) {
                              used[j] = true;
                          }
                      }
                  }
              }
              out.println(count);
          }
  
      }
  
      static class FastScanner {
          BufferedReader br;
          StringTokenizer st;
  
          public FastScanner(InputStream in) {
              br = new BufferedReader(new InputStreamReader(in));
          }
  
          public FastScanner(String fileName) {
              try {
                  br = new BufferedReader(new FileReader(fileName));
              } catch (FileNotFoundException e) {
                  e.printStackTrace();
              }
          }
  
          public int nextInt() {
              return Integer.parseInt(next());
          }
  
          public String next() {
              while (st == null || !st.hasMoreElements()) {
                  String line = null;
                  try {
                      line = br.readLine();
                  } catch (IOException e) {
                  }
                  st = new StringTokenizer(line);
              }
              return st.nextToken();
          }
  
          public int[] nextIntArray(int n) {
              int[] ret = new int[n];
              for (int i = 0; i < n; i++) {
                  ret[i] = nextInt();
              }
              return ret;
          }
  
      }
  }
  
  