#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

template<typename T> vector<T> divisors(const T &n){
    vector<T> ret;
    for(T i = 1; i*i <= n; i++){
        if(n%i == 0){
            ret.pb(i);
            if(i*i != n) ret.pb(n/i);
        }
    }
    sort(all(ret));
    return ret;
}

template<typename T> vector<pair<T, int>> prime_factor(T n){
    vector<pair<T, int>> ret;
    for(T i = 2; i*i <= n; i++){
        int cnt = 0;
        while(n%i == 0) cnt++, n /= i;
        if(cnt > 0) ret.eb(i, cnt);
    }
    if(n > 1) ret.eb(n, 1);
    return ret;
}

template<typename T> bool is_prime(const T &n){
    if(n == 1) return false;
    for(T i = 2; i*i <= n; i++){
        if(n%i == 0) return false;
    }
    return true;
}

vector<bool> Eratosthenes(const int &n){
    vector<bool> ret(n+1, true);
    if(n >= 0) ret[0] = false;
    if(n >= 1) ret[1] = false;
    for(int i = 2; i*i <= n; i++){
        if(!ret[i]) continue;
        for(int j = i+i; j <= n; j += i) ret[j] = false;
    }
    return ret;
}

vector<int> Eratosthenes2(const int &n){
    vector<int> ret(n+1);
    iota(all(ret), 0);
    if(n >= 0) ret[0] = -1;
    if(n >= 1) ret[1] = -1;
    for(int i = 2; i*i <= n; i++){
        if(ret[i] < i) continue;
        for(int j = i+i; j <= n; j += i) chmin(ret[j], i);
    }
    return ret;
}

struct Random_Number_Generator{
    mt19937_64 mt;

    Random_Number_Generator() : mt(chrono::steady_clock::now().time_since_epoch().count()) {}

    int64_t operator () (int64_t l, int64_t r){
        uniform_int_distribution<int64_t> dist(l, r-1);
        return dist(mt);
    }

    int64_t operator () (int64_t r){ 
        return (*this)(0, r);
    }
};

ll modpow(ll x, ll n, const int &m){
    ll ret = 1;
    while(n){
        if(n&1) ret *= x, ret %= m;
        x *= x, x %= m;
        n >>= 1;
    }
    return ret;
}

template<typename T> T Euler_Totient(T m){ //オイラーのφ関数(xとmが互いに素ならば、x^φ(m)≡1(mod m))
    T ret = m;
    for(T i = 2; i*i <= m; i++){
        if(m%i == 0) ret /= i, ret *= i-1;
        while(m%i == 0) m /= i;
    }
    if(m > 1) ret /= m, ret *= m-1;
    return ret;
}

int modlog(const int &x, ll y, const int &m){ //x^k=y(mod m)となる最小の非負整数k(xとmは互いに素)
    unordered_map<int, int> mp;
    int n = 0; ll now = 1;
    for(; n*n < m; n++){
        if(!mp.count(now)) mp[now] = n;
        now *= x, now %= m;
    }
    now = modpow(now, Euler_Totient(m)-1, m);
    rep(i, n){
        if(mp.count(y)) return n*i+mp[y];
        y *= now, y %= m;
    }
    return -1;
}

template<typename T> T order(T x, const T &m){ //x^k=1(mod m)となる最小の正整数k(xとmは互いに素)
    T n = Euler_Totient(m);
    vector<T> ds;
    for(T i = 1; i*i <= n; i++){
        if(n%i == 0) ds.pb(i), ds.pb(n/i);
    }
    sort(all(ds));
    for(auto &e: ds){
        if(modpow(x, e, m) == 1) return e;
    }
    return -1;
}

template<typename T> T primitive_root(T m){ //素数mの原始根
    vector<T> ds;
    for(T i = 1; i*i <= m-1; i++){
        if((m-1)%i == 0) ds.pb(i), ds.pb((m-1)/i);
    }
    sort(all(ds));
    Random_Number_Generator rnd;
    while(true){
        T r = rnd(1, m);
        for(auto &e: ds){
            if(e == m-1) return r;
            if(modpow(r, e, m) == 1) break;
        }
    }
}

int main(){
    int T;
    cin >> T;
    while(T--){
        ll N;
        cin >> N;
        while(N%2 == 0) N /= 2;
        while(N%5 == 0) N /= 5;

        if(N == 1) cout << 1 << '\n';
        else cout << order(10LL, N) << '\n';
    }
}