/* Problem URL: https://codeforces.com/contest/2126/problem/E */ #include #include #include using namespace std; using namespace __gnu_pbds; template > using ordered_set = tree; #define V vector #define rmin(a, b) a = min(a, b) #define rmax(a, b) a = max(a, b) #define rep(i, lim) for (int i = 0; i < (lim); i++) #define nrep(i, s, lim) for (int i = s; i < (lim); i++) #define repv(i, v) for (auto &i : (v)) #define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; } #define sortv(v) sort(v.begin(), v.end()) #define all(v) (v).begin(), (v).end() using vi = vector; using vvi = vector; using vvvi = vector; using vvvvi = vector; using ll = long long; using vl = vector; using vvl = vector; using vvvl = vector; using vvvvl = vector; template auto operator<<(ostream &os, const vector &vec)->ostream& { os << vec[0]; for (size_t i = 1; i < vec.size(); i++) { os << ' ' << vec[i]; } os << '\n'; return os; } template auto operator>>(istream &is, vector &vec)->istream& { for (auto &i : vec) { is >> i; } return is; } template auto operator<<(ostream &os, const vector> &vec)->ostream& { for (auto &i : vec) { os << i[0]; for (size_t j = 1; j < i.size(); j++) { os << ' ' << i[j]; } os << '\n'; } return os; } template auto operator>>(istream &is, vector> &vec)->istream& { for (auto &i : vec) { for (auto &j : i) { is >> j; } } return is; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t; cin >> t; while (t--) { int n; cin >> n; vl a(n); vl b(n); cin >> a >> b; if (n == 1) { cout << (a[0] == b[0] ? "YES\n" : "NO\n"); continue; } vl tmp(n); rep(i, n) { tmp[i] = lcm(a[i], b[i]); } vl f(n); f[0] = tmp[0]; nrep(i, 1, n) { f[i] = gcd(f[i - 1], tmp[i]); } vl s(n); s[n - 1] = tmp[n - 1]; for (int i = n - 2; i >= 0; i--) { s[i] = gcd(s[i + 1], tmp[i]); } if (f != a || s != b) { cout << "NO\n"; } else { cout << "YES\n"; } } }