#include <iostream>
#include <cmath>
#include <vector>
#include <utility>
#include <queue>
#include <map>
#include <algorithm>

using namespace std;

int prime_factor(int n){
	map<int,int>res;
	int cnt = 0;
	for(int i=2;i*i<=n;i++){
		while(n%i==0){
			++res[i];
			if(res[i] == 1)cnt++;
			n /= i;
		}
	}
	if(n!=1){
		res[n]=1;
		cnt++;
	}
	return cnt;
}

int main(void){
	int n,k;
	cin >> n >> k;
	int ret =0;
	for(int i=2;i<=n;i++){
		if(prime_factor(i) >= k)ret++;
	}
	cout << ret << endl;
	return 0;
}