#include <stdio.h>
using namespace std;

#define MAX 2000000000

long int v[100001];
int m, n, i, j, k;
int cm;

struct numere
{
    int x;
    int y;
    int div;
};

struct numere nr[10001];

int cmmdc (int a, int b)
{
    int r;
    while (b)
    {
        r = a % b;
        a = b;
        b = r;
    }
    return a;
}

int cmmmc (int a, int b)
{
    return a * b / cmmdc (a, b);
}

int main ()
{
    FILE *f = fopen ("oz.in","r");
    FILE *g = fopen ("oz.out","w");
    fscanf (f,"%d %d", &n, &m);

    for (k=1; k<=m; ++k)
        fscanf (f,"%d %d %d", &nr[k].x, &nr[k].y, &nr[k].div);

    for (k=1; k<=m; ++k)
    {
        cm = 1;
        cm *= nr[k].div;
        for (j=1; j<=m; ++j)
        {
            if (j != k)
            {
                if (nr[k].x == nr[j].x || nr[k].x == nr[j].y)
                    cm *= nr[j].div;
            }
        }
        if (!v[nr[k].x])
            v[nr[k].x] = cm;
    }


    for (k=1; k<=m; ++k)
    {
        cm = 1;
        cm *= nr[k].div;
        for (j=1; j<=m; ++j)
        {
            if (j != k)
            {
                if (nr[k].y == nr[j].y || nr[k].y == nr[j].x)
                    cm *= nr[j].div;
            }
        }
        if (!v[nr[k].y])
            v[nr[k].y] = cm;
    }

    for (i=1; i<=n; ++i)
    {
        if (cmmdc (v[nr[i].x], v[nr[i].y]) != nr[i].div || v[i] > MAX)
        {
            fprintf (g,"-1");
            return 0;
        }
    }

    for (i=1; i<=n; ++i)
        fprintf (g,"%ld ", v[i]);

    return 0;
}