#include <bits/stdc++.h>

using namespace std;

typedef long long LL;

const int N = 1e7;

LL n, m;
LL a[N];

bool check(LL x) 
{
    LL s = 0;
    for (int i = 1; i <= n; i ++ ) s += a[i] / x;

    return s >= m;
}

int main() 
{
    cin >> n >> m;
    for (int i = 1; i <= n; i ++ ) cin >> a[i];
    LL l = 0, r = 1e12;

    while (l < r - 1)
    {
        LL mid = (l + r) / 2;
        if (check(mid)) l = mid;
        else r = mid;
    }
    cout << l;

    return 0;
}