#include <iostream>
using namespace std;

const int N_MAX = 2000000;
int maxp[N_MAX + 10], cnt[N_MAX + 10];

int main(){
    int N, K;
    cin >> N >> K;
    
    int res = 0;
    for(int i=2;i<=N;i++){
        if(maxp[i] == 0){
            for(int kp=i;kp<=N;kp+=i)maxp[kp] = i;
            cnt[i] = 1;
        } else {
            int mp = maxp[i];
            if(maxp[i / mp] == mp){
                cnt[i] = cnt[i / mp];
            } else {
                cnt[i] = cnt[i / mp] + 1;
            }
        }
     
        if(cnt[i] >= K)++res;
    }
    
    cout << res << endl;
    return 0;
}