source_code: import java.io.*;
  import java.util.*;
  
  public class A {
      FastScanner in;
      PrintWriter out;
  
      void solve() {
          int n = in.nextInt();
          int[] a = new int[n];
          for (int i = 0; i < n; i++) {
              a[i] = in.nextInt();
          }
          Arrays.sort(a);
          int res = 0;
          for (int i = 0; i < n; i++) {
              boolean ok = false;
              for (int j = 0; j < i; j++) {
                  if (a[i] % a[j] == 0) {
                      ok = true;
                  }
              }
              if (!ok) {
                  res++;
              }
          }
          out.println(res);
      }
  
      void run() {
          try {
              in = new FastScanner(new File("A.in"));
              out = new PrintWriter(new File("A.out"));
  
              solve();
  
              out.close();
          } catch (FileNotFoundException e) {
              e.printStackTrace();
          }
      }
  
      void runIO() {
  
          in = new FastScanner(System.in);
          out = new PrintWriter(System.out);
  
          solve();
  
          out.close();
      }
  
      class FastScanner {
          BufferedReader br;
          StringTokenizer st;
  
          public FastScanner(File f) {
              try {
                  br = new BufferedReader(new FileReader(f));
              } catch (FileNotFoundException e) {
                  e.printStackTrace();
              }
          }
  
          public FastScanner(InputStream f) {
              br = new BufferedReader(new InputStreamReader(f));
          }
  
          String next() {
              while (st == null || !st.hasMoreTokens()) {
                  String s = null;
                  try {
                      s = br.readLine();
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
                  if (s == null)
                      return null;
                  st = new StringTokenizer(s);
              }
              return st.nextToken();
          }
  
          boolean hasMoreTokens() {
              while (st == null || !st.hasMoreTokens()) {
                  String s = null;
                  try {
                      s = br.readLine();
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
                  if (s == null)
                      return false;
                  st = new StringTokenizer(s);
              }
              return true;
          }
  
          int nextInt() {
              return Integer.parseInt(next());
          }
  
          long nextLong() {
              return Long.parseLong(next());
          }
  
          double nextDouble() {
              return Double.parseDouble(next());
          }
      }
  
      public static void main(String[] args) {
          new A().runIO();
      }
  }
  