#include <bits/stdc++.h>
using namespace std;
const long long int mod = 1e9 + 7;
const double pie = 3.14159265358979323846;
const char nl = '\n';
template <typename Type>
istream &operator>>(istream &in, vector<Type> &v) {
  long long int n = v.size();
  for (int i = 0; i < n; i++) in >> v[i];
  return in;
}
template <typename Type>
ostream &operator<<(ostream &out, vector<Type> &v) {
  for (auto value : v) out << value << " ";
  out << endl;
  return out;
}
void solve() {
  long long int n;
  cin >> n;
  vector<long long int> a(4 * n);
  cin >> a;
  sort(a.begin(), a.end());
  long long int area = a[0] * a.back();
  long long int c = 1, j = 4 * n - 1;
  for (long long int i = 0; c <= n;) {
    if (a[i] != a[i + 1] or a[j] != a[j - 1] or a[i] * a[j] != area) {
      cout << "No\n";
      return;
    }
    ++c;
    i += 2;
    j -= 2;
  }
  cout << "Yes\n";
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long int t;
  cin >> t;
  while (t--) {
    solve();
  }
  return 0;
}
