#include <bits/stdc++.h>
#define DAU  ios::sync_with_stdio(false); fin.tie(0); fout.tie(0);
#define PLEC fin.close(); fout.close(); return 0;
#define int  long long
using namespace std;
ifstream fin("oz.in");
ofstream fout("oz.out");
queue<tuple<int, int, int>> Q;
int n, m, a, b, d, r;
vector<int> v;
inline int cmmdc(int a, int b)
{
    while (b != 0)
    {
        r = a % b;
        a = b;
        b = r;
    }
    return a;
}
inline int cmmmc(int a, int b) {
    r = a * b / cmmdc(a, b);
    return r;
}
main()
{
    DAU
    fin >> n >> m;
    v = vector<int>(n + 1, 1);
    for (int i = 1; i <= m; ++i)
    {
        fin >> a >> b >> d;
        v[a] = cmmmc(v[a], d);
        v[b] = cmmmc(v[b], d);
        Q.emplace(a, b, d);
    }
    while (!Q.empty())
    {
        tie(a, b, d) = Q.front();
        Q.pop();
        if (cmmdc(v[a], v[b]) != d) {
            fout << -1;
            PLEC
        }
    }
    for (int i = 1; i <= n; ++i)
        if (v[i] > 2e9) {
            fout << -1;
            PLEC
        }
    for (int i = 1; i <= n; ++i)
        fout << v[i] << ' ';
    PLEC
}