#include <cstdio>
#include <algorithm>

using namespace std;

int v[10010];
struct triplet
{
    int x, y, d;
} a[100010];

inline int cmmdc (int a, int b)
{
    while (b)
    {
        a %= b;
        swap (a, b);
    }

    return a;
}

int main ()
{
    freopen ("oz.in", "r", stdin);
    freopen ("oz.out", "w", stdout);

    int n, m;
    scanf ("%d %d", &n, &m);

    int ma = 0;
    for (int i = 1; i <= m; ++i)
        scanf ("%d %d %d", &a[i].x, &a[i].y, &a[i].d);

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

    bool OK = true;
    for (int i = 1; i <= m; ++i)
    {
        int xx = a[i].x;
        int yy = a[i].y;
        int dd = a[i].d;
        int cdd = dd;

        int c1 = cmmdc (dd, v[xx]);
        int c2 = cmmdc (dd, v[yy]);
        dd /= c1;
        cdd /= c2;

        long long z = 1LL * dd * v[xx];
        if (z > 2000000000LL)
        {
            OK = false;
            break;
        }

        v[xx] = z;

        z = 1LL * cdd * v[yy];
        if (z > 2000000000LL)
        {
            OK = false;
            break;
        }

        v[yy] = z;
    }

    if (!OK)
    {
        printf ("-1\n");
        return 0;
    }

    for (int i = 1; i <= m && OK; ++i)
    {
        int p = cmmdc (v[a[i].x], v[a[i].y]);
        if (p != a[i].d) OK = false;
    }

    if (!OK)
    {
        printf ("-1\n");
        return 0;
    }

    for (int i = 1; i <= n; ++i)
        printf ("%d ", v[i]);

    printf ("\n");

    return 0;
}