#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int arr[n];
  for (int i = 0; i < n; i++) cin >> arr[i];
  sort(arr, arr + n);
  int c = 0;
  for (int i = 0; i < n; i++) {
    if (arr[i] != -1) {
      for (int j = i + 1; j < n; j++) {
        if (arr[j] != -1 && arr[j] % arr[i] == 0) {
          arr[j] = -1;
        }
      }
    } else
      c++;
  }
  cout << n - c << '\n';
  return 0;
}
