#include<iostream>
#include<cstdlib>
#include<cstring>
#include<cstdio>
using namespace std;
long long a[1000005];
long long n,k;
int main()
{scanf("%lld%lld",&n,&k);
long long l=0,r=10000005;
for(long long i=1;i<=n;i++)
    scanf("%lld",&a[i]); 
while(r-l>1)
    {long long sum=0;
	 long long mid=(r+l)/2;
     for(long long i=1;i<=n;i++)
        sum=sum+a[i]/mid;
	 if(sum<k) 
	   r=mid;
	 else l=mid; 
	}
printf("%d",l);
return 0;
}