#line 1 "Main.cpp"

#line 2 "nachia\\math\\floor-of-kth-root.hpp"

#include <cassert>

namespace nachia{

namespace internal{

// mod 2^64
constexpr unsigned long long PowerOfULongLong(unsigned long long a, unsigned long long i){
    unsigned long long res = 1;
    while(i){ if(i&1){ res *= a; } i /= 2; a *= a; }
    return res;
}

}

unsigned long long FloorOfKthRoot(unsigned long long real, unsigned long long k){
    using u64 = unsigned long long;
    assert(k != 0);
    if(real <= 1) return real;
    if(k >= 64) return 1;
    if(k == 1) return real;
    struct Precalc{
        // a^i <= x
        static constexpr bool lesseq(u64 a, int i, u64 x) {
            if (a == 0) return true;
            for(int j=0; j<i; j++) x /= a;
            return x >= 1;
        }
        unsigned long long BORDER[64];
        constexpr Precalc() : BORDER() {
            for (int idx = 2; idx <= 63; idx++) {
                u64 l = 0, r = 1ull << 33;
                while (l + 1 < r) {
                    u64 m = (l + r) / 2;
                    if (lesseq(m, idx, ~0ull)) l = m;
                    else r = m;
                }
                BORDER[idx] = r;
            }
        };
    };
    constexpr Precalc precalc;
    u64 l = 0, r = precalc.BORDER[k];
    while (l + 1 < r) {
        u64 m = (l + r) / 2;
        if(internal::PowerOfULongLong(m, k) <= real) l = m;
        else r = m;
    }
    return l;
}

unsigned long long CeilOfKthRoot(unsigned long long real, unsigned long long k){
    if(real <= 1) return real;
    if(k >= 64) return 2;
    if(k == 1) return real;
    unsigned long long x = FloorOfKthRoot(real, k);
    if(internal::PowerOfULongLong(x, k) != real) x++;
    return x;
}

} // namespace nachia
#line 3 "Main.cpp"

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <atcoder/modint>

using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(int)(n); i++)

using Modint = atcoder::static_modint<998244353>;


u64 GCD(u64 a, u64 b){
    while(b){
        u64 c = a % b;
        a = b;
        b = c;
    }
    return a;
}


int main(){
    int T; cin >> T;
    rep(t,T){
        int N; cin >> N;
        vector<u64> A;
        rep(i,N){
            u64 a; cin >> a;
            for(u64& j : A){
                u64 g = GCD(j, a);
                if(g != 1){ a /= g; j /= g; }
            }
            if(a != 1) A.push_back(a);
            rep(j,A.size()) if(A[j] == 1){ swap(A[j], A.back()); A.pop_back(); j--; }
        }
        bool ok = true;
        for(u64 j : A) if(nachia::FloorOfKthRoot(j,2) * nachia::FloorOfKthRoot(j,2) != j) ok = false;
        cout << (ok ? "Yes" : "No") << '\n';
    }
    return 0;
}


struct ios_do_not_sync{
    ios_do_not_sync(){
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
    }
} ios_do_not_sync_instance;