#include <bits/stdc++.h>

#include <atcoder/all>
using namespace std;
using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
#define FAST_IO                \
  ios::sync_with_stdio(false); \
  cin.tie(0);
const i64 INF = 1001001001001001001;
using Modint = atcoder::static_modint<998244353>;

vector<i64> erathosthenes(i64 N) {
  vector<i64> is_prime(N + 1, 1);
  is_prime[0] = is_prime[1] = 0;

  vector<i64> ret;
  for (i64 i = 2; i <= N; i++) {
    if (!is_prime[i]) continue;
    ret.push_back(i);
    for (i64 j = i; j <= N; j += i) {
      is_prime[j] = 0;
    }
  }
  return ret;
}

int main() {
  FAST_IO

  int N;
  cin >> N;
  vector<i64> A(N);
  for (auto &v : A) cin >> v;

  auto primes = erathosthenes(300000);

  vector<vector<i64>> ps(N);
  set<i64> st;

  i64 one = 0;

  for (int i = 0; i < N; i++) {
    auto v = A[i];
    if (v == 1) {
      one ++;
      continue;
    }
    for (auto p : primes) {
      if (p * p > v) break;
      if (v % p == 0) {
        while (v % p == 0) {
          v /= p;
        }
        ps[i].push_back(p);
        st.insert(p);
      }
    }
    if (v > 1) {
      ps[i].push_back(v);
      st.insert(v);
    }
  }

  int m = st.size();
  vector<i64> a(st.begin(), st.end());
  map<i64, int> ia;
  ranges::sort(a);

  for (int i = 0; i < m; i++) {
    ia[a[i]] = i;
  }

  atcoder::dsu ds(m);
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < ps[i].size(); j++) {
      ds.merge(ia[ps[i][0]], ia[ps[i][j]]);
    }
  }

  vector<i64> b;
  for (int i = 0; i < m; i++) {
    if (ds.leader(i) == i) {
      b.push_back(a[i]);
    }
  }

  if (b.size() == 0) {
    cout << one * 2 << endl;
    return 0;
  }

  i64 x = one;
  i64 y = b.size();
  i64 z = b[0];

  i64 ans = INF;

  if (z == 2) {
    ans = min(ans, (x + y - 1) * z);
  }

  if (one == 0) {
    ans = min(ans, (y - 1) * z);
  }

  // z > 2
  // 1を全部2に、大きい奴を全部最小値でかける
  ans = min(ans, one * 2 + 2 + (y - 1) * z);
  // 全てに2を書ける
  ans = min(ans, (one + y) * 2);
  cout << ans << endl;
}