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1374B.cpp
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1374B.cpp
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#include<iostream>
#include<vector>
#include<string>
#include<cstring>
#include<stack>
#include<queue>
#include<cstdio>
#include<set>
#include<unordered_set>
#include<cmath>
#include<algorithm>
#include<functional>
#include<utility>
#include<cstdlib>
using namespace std;
typedef long long int lli;
typedef size_t idx;
#define vi vector<int>
#define pb(n) push_back(n)
#define ln "\n"
#define sp ends
#define newline cout << ln
#define fastios ios_base::sync_with_stdio(false); cin.tie(0)
int main(){
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int t, n;
cin >> t;
while(t--){
cin >> n;
int cnt2 = 0, cnt3 = 0;
vector<int> f;
while(!(n % 2)){
++cnt2;
n /= 2;
}
while(!(n % 3)){
++cnt3;
n /= 3;
}
if(n > 1){
cout << -1 << ln;
continue;
}
if(cnt2 > cnt3){
cout << -1 << ln;
continue;
}
cout << (cnt3 - cnt2) + cnt3 << ln;
}
return 0;
}