#include <bits/stdc++.h>

using namespace std;

#define rep(i, n) for(int i = 0; i < (int)n; ++i)
#define FOR(i, a, b) for(int i = a; i < (int)b; ++i)
#define rrep(i, n) for(int i = ((int)n - 1); i >= 0; --i)

typedef long long ll;
typedef long double ld;

const int Inf = 1e9;
const double EPS = 1e-9;
const int MOD = 1e9 + 7;

vector<pair<ll, int> > prime_factorize(ll n) {
  vector<pair<ll, int> > res;
  for (ll i = 2; i * i <= n; ++i) {
    if (n % i) continue;
    res.push_back(make_pair(i, 0));
    while (n % i == 0) {
      n /= i;
      res.back().second++;
    }
  }
  if (n != 1) res.push_back(make_pair(n, 1));
  return res;
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(0);
    int n, k, res = 0;
    cin >> n >> k;
    FOR (i, 2, n + 1) {
        auto v = prime_factorize(i);
        if (v.size() >= k) res++;
    } 
    cout << res << endl;
    
    return 0;
}