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

ifstream fin("oz.in");
ofstream fout("oz.out");
int a[1003], n;
int x[100003], y[100003], d[100003], m;

int main()
{
    int i, j, D, k, c;
    fin >> n >> m;
    for (k = 1; k <= m; k++)
    {
        fin >> i >> j >> D;
        x[k] = i; y[k] = j; d[k] = D;
        if (a[i] == 0) a[i] = D;
        else
        {
            c = __gcd(D, a[i]);
            a[i] = a[i] / c * D;
        }
        if (a[j] == 0) a[j] = D;
        else
        {
            c = __gcd(D, a[j]);
            a[j] = a[j] / c * D;
        }
    }
    for (i = 1; i <= m; i++)
        if (__gcd(a[x[i]], a[y[i]]) != d[i])
        {
            fout << "-1\n";
            fout.close();
            return 0;
        }
    for (i = 1; i <= n; i++)
        fout << a[i] << " ";
    return 0;
}