source_code: /**
   * Created by Alyssa Herbst on 9/14/19 9:05 AM.
   */
  
  import java.util.*;
  import java.io.*;
  
  import static java.lang.Math.*;
  
  public class B {
      static StringBuilder sb;
      static int N;
      static int[] A;
      static boolean[] B;
      public static void main(String[] args) {
          FastScanner sc = new FastScanner();
          //Scanner sc = new Scanner(System.in);
          sb = new StringBuilder();
          N = sc.nextInt();
          A = new int[N];
          for (int i = 0; i < N; i++) {
              A[i] = sc.nextInt();
          }
          Arrays.sort(A);
          B = new boolean[N];
          int count = 0;
          for (int i = 0; i < A.length; i++) {
              if(B[i]) {
                  continue;
              }
              else {
                  count++;
                  B[i] = true;
              }
              for (int j = i + 1; j < A.length; j++) {
                  if(A[j] % A[i] == 0) {
                      B[j] = true;
                  }
              }
          }
          sb.append(count);
          System.out.println(sb);
      }
  
      public static class FastScanner {
          BufferedReader br;
          StringTokenizer st;
  
          public FastScanner(Reader in) {
              br = new BufferedReader(in);
          }
  
          public FastScanner() {
              this(new InputStreamReader(System.in));
          }
  
          String next() {
              while (st == null || !st.hasMoreElements()) {
                  try {
                      st = new StringTokenizer(br.readLine());
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              }
              return st.nextToken();
          }
  
          int nextInt() {
              return Integer.parseInt(next());
          }
  
          long nextLong() {
              return Long.parseLong(next());
          }
  
          double nextDouble() {
              return Double.parseDouble(next());
          }
  
          String readNextLine() {
              String str = "";
              try {
                  str = br.readLine();
              } catch (IOException e) {
                  e.printStackTrace();
              }
              return str;
          }
  
          int[] readIntBrray(int n) {
              int[] a = new int[n];
              for (int idx = 0; idx < n; idx++) {
                  a[idx] = nextInt();
              }
              return a;
          }
  
          long[] readLongBrray(int n) {
              long[] a = new long[n];
              for (int idx = 0; idx < n; idx++) {
                  a[idx] = nextLong();
              }
              return a;
          }
      }
  }