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 _: usize = itr.next().unwrap().parse().unwrap();

    let mut i = 2;
    let mut ans = 1;
    while i * i <= n {
        if n % i == 0 {
            ans = std::cmp::max(ans, n / i);
        }
        i += 1;
    }
    println!("{}", ans);
}