`\color{pink}{#Bơ}`

#include <bits/stdc++.h>
using namespace std;

long long ucln(long long a, long long b) {
    while (b != 0) {
        long long r = a % b;
        a = b;
        b = r;
    }
    return a;
}

long long bcnn(long long a, long long b) {
    return a / ucln(a, b) * b;
}

int main() {
    int t;
    cin >> t;

    for (int i = 0; i < t; i++) {
        int n;
        cin >> n;

        long long a[100005], b[100005];

        for (int i = 0; i < n; i++) {
            cin >> a[i];
        }

        b[0] = a[0];
        for (int i = 1; i < n; i++) {
            b[i] = bcnn(a[i - 1], a[i]);
        }
        b[n] = a[n - 1];

        for (int i = 0; i <= n; i++) {
            cout << b[i] << " ";
        }
        cout << endl;
    }

    return 0;
}

 `\color{#1AD5F7}{꧁⋆⟡T}\color{#1AD5F7}{D}\color{#4DA6E6}{u}\color{#668EDD}{n}\color{#8077D5}{g}\color{#995FCD}{G}\color{#EA2F90}{M⟡⋆꧂}`