#include <fstream>

#define NMAX 10005
#define LIMIT 2000000000

using namespace std;

ifstream f("oz.in");
ofstream g("oz.out");

int n, m;
int v[NMAX], add[NMAX];
pair <int, int> x[NMAX];

int cmmdc(int a, int b) {
    int r = 0;

    while (b) {
        r =  a % b;
        a = b;
        b = r;
    }

    return a;
}

int cmmmc(int a, int b) {

    if (1ll * a * b / cmmdc(a, b) > LIMIT)
        return LIMIT + 1;

    return a * b / cmmdc(a, b);
}

int main()
{
    f >> n >> m;

    for (int i = 1; i <= n; i++)
        v[i] = 1;

    for (int i = 1; i <= m; i++) {
        f >> x[i].first >> x[i].second >> add[i];

        v[x[i].first] = cmmmc(v[x[i].first], add[i]);
        v[x[i].second] = cmmmc(v[x[i].second], add[i]);

        if (v[x[i].first] > LIMIT || v[x[i].second] > LIMIT) {
            g << "-1";
            return 0;
        }
    }

    for (int i = 1; i <= m; i++) {

        if (cmmdc(v[x[i].first], v[x[i].second]) != add[i]) {
            g << "-1\n";
            return 0;
        }
    }

    for (int i = 1; i <= n; i++) {
        g << v[i] << " ";
    }

    return 0;
}