#include <bits/stdc++.h>

using namespace std;

const int nmax = 10000, mmax = 100000;
long long a[nmax];
int qi[mmax], qj[mmax], qd[mmax];

long long gcd(long long a, long long b) {
    long long r;
    while (b) {
        r = a % b;
        a = b;
        b = r;
    }
    return a;
}

long long lcm(long long a, long long b) {
    return a / gcd(a, b) * b;
}

int main() {
    ifstream fin("oz.in");
    ofstream fout("oz.out");
    int n, m, i, ok;
    fin >> n >> m;
    for (i = 0; i < n; ++i) {
        a[i] = 1;
    }
    for (i = 0; i < m; ++i) {
        fin >> qi[i] >> qj[i] >> qd[i];
        --qi[i];
        --qj[i];
        a[qi[i]] = lcm(a[qi[i]], qd[i]);
        a[qj[i]] = lcm(a[qj[i]], qd[i]);
    }
    ok = 1;
    for (i = 0; i < m; ++i) {
        if (gcd(a[qi[i]], a[qj[i]]) != qd[i]) {
            ok = 0;
        }
    }
    if (ok) {
        for (i = 0; i < n; ++i) {
            fout << a[i] << ' ';
        }
        fout << '\n';
    } else {
        fout << "-1\n";
    }
    fin.close();
    fout.close();
    return 0;
}