#include <iostream>
#include <sstream>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <numeric>
#include <vector>
#include <string>
#include <set>
#include <map>
#include <stack>
#include <deque>
#include <unordered_map>
#include <bits/stdc++.h>
#include <queue>

using namespace std;
#define ll long long
void sherry()
{
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
#endif
}
bool comp(pair<int, int> a, pair<int, int> b)
{
    return a.second > b.second;
}
ll fac(ll t)
{
    if (t == 1)
    {
        return 1;
    }
    return t * fac(t - 1);
}
ll gcd(ll a, ll b)
{
    return b == 0 ? a : gcd(b, a % b);
}
int main()
{
    sherry();
    // freopen("equal.in", "r", stdin);
    ll t;
    cin >> t;
    while (t--)
    {
        ll n, sum = 0;
        ll p;
        cin >> n;
        for (ll i = 0; i < n; i++)
        {
            ll num;
            cin >> num;
            sum += num;
            if (i == 0)
                p = num;
            else
                p = gcd(p, num);
        }
        cout << sum << " " << p << "\n";
    }
    return 0;
}