#include <iostream>
#include <vector>
#include <list>
#include <algorithm>
#include <string>
#include <sstream>
#include <stack>
#include <iomanip>
#include <numeric>
#include <queue>
#include <climits>
#include <set>
#include <complex>
#include <cmath>
#include <cstring>
#include <map>
using namespace std;
using ll = long long;
#define MOD 1000000007
#define INF 1LL << 59
using ld = long double;

int main()
{
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
    //cout << fixed << setprecision(5);

    ll N, K;
    cin >> N >> K;

    int ans = 0;
    for (int i = 2; i <= N; ++i)
    {
        int cnt = 0;
        int n = i;
        for (int j = 2; j * j <= i; ++j)
        {
            if (n % j == 0)
            {
                cnt++;
                while (n % j == 0)
                {
                    n /= j;
                }
            }
        }
        if (n != 1)
            cnt++;
        if (cnt >= K)
            ans++;
    }
    cout << ans << endl;
    return 0;
}