use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    let k: usize = itr.next().unwrap().parse().unwrap();

    let mut ans = 0;
    for mut i in 2..n + 1 {
        let mut div = 2;
        let mut cnt = 0;
        while div * div <= i {
            if i % div == 0 {
                cnt += 1;
                while i % div == 0 {
                    i /= div;
                }
            }
            div += 1;
        }
        if i != 1 {
            cnt += 1;
        }
        if cnt >= k {
            ans += 1;
        }
    }
    println!("{}", ans);
}