#include<iostream>
using namespace std;


int N;

void read() {
    int K;
    cin >> N >> K;
}


void work() {
    for (int i = 2; i * i <= N; ++i) {
        if (N % i == 0) {
            cout << N / i << endl;
            return;
        }
    }
    cout << 1 << endl;
}


int main() {
    read();
    work();
    return 0;
}