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#include <bits/stdc++.h>

using namespace std;
#define PB push_back
#define MP make_pair
#define LL long long
#define int LL
#define FOR(i,a,b) for(int i = (a); i <= (b); i++)
#define FORD(i,a,b) for(int i = (a); i >= (b); i--)
#define RE(i,n) FOR(i,1,n)
#define REP(i,n) FOR(i,0,(int)(n)-1)
#define R(i,n) REP(i,n)
#define VI vector<int>
#define PII pair<int,int>
#define LD long double
#define FI first
#define SE second
#define st FI
#define nd SE
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())

template<class C> void mini(C& _a4, C _b4) { _a4 = min(_a4, _b4); }
template<class C> void maxi(C& _a4, C _b4) { _a4 = max(_a4, _b4); }

template<class TH> void _dbg(const char *sdbg, TH h){ cerr << sdbg << '=' << h << endl; }
template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) {
  while(*sdbg!=',')cerr<<*sdbg++;
  cerr<<'='<<h<<','; _dbg(sdbg+1, a...);
}

#ifdef LOCAL
#define debug(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#define debugv(CC) {cerr<<#CC<<"=";for(auto&cc:CC)cerr<<cc<<",";cerr<<endl;}
#else
#define debug(...) (__VA_ARGS__)
#define debugv(CC) {}
#define cerr if(0)cout
#endif

int32_t main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout << fixed << setprecision(11);
  cerr << fixed << setprecision(6);
  int n;
  cin >> n;
  VI inp(n);
  REP(i, n) cin >> inp[i];
  int sum = 0;
  REP(i, n){
    sum += inp[i];
  }
  VI events(n);
  FORD(i, n, 1){
    if(sum % i == 0){
      events = VI(n + 1);
      int tmp = 0;
      debug(i);
      REP(j, n){
        tmp += events[j];
        int diff = inp[j] - tmp;
        debug(tmp, events[j], diff);
        if((diff && j + i > n) || diff < 0){
          goto no;
        }
        tmp = inp[j];
        if(diff){
          events[j + i] -= diff;
        }
      }
      cout << i << "\n";
      break;
      no:;
    }
  }
}