#include <bits/stdc++.h>
#define ll long long
#define INF 1000000005
#define MOD 1000000007
#define rep(i,n) for(int i=0;i<n;++i)

using namespace std;

typedef pair<int,int>P;

const int MAX_N = 11;

int a[MAX_N];
int n;

ll gcd(ll a,ll b)
{
	if(b==0){
		return a;
	}
	return gcd(b,a%b);
}

ll lcm(ll a,ll b)
{
	return a*b/gcd(a,b);
}

int main()
{
	scanf("%d",&n);
	rep(i,n){
		scanf("%d",&a[i]);
	}
	ll ans = 1;
	rep(i,n){
		ans = lcm(ans,a[i]);
	}
	printf("%lld\n",ans);
	return 0;
}