#include <fstream>

#define NMAX 100002

using namespace std;
ifstream cin("oz.in");
ofstream cout("oz.out");
int n,m,j,k,i,v[NAMX],v1[NMAX],sol,a,b,r,o[NMAX],d[NMAX];
int main ()
{
    cin>>n>>m;
    for(i=1; i<=m; i++)
        cin>>v[i]>>v1[i]>>d[i];
    for(i=1; i<=n; i++)
        o[i]=1;
    for(i=1; i<=m; i++)
    {
        a=o[v[i]];
        b=d[i];
        while(b!=0)
        {
            r=a%b;
            a=b;
            b=r;
        }
        o[v[i]]=o[v[i]]/a*d[i];
        a=o[v1[i]];
        b=d[i];
        while(b!=0)
        {
            r=a%b;
            a=b;
            b=r;
        }
        o[v1[i]]=o[v1[i]]/a*d[i];
    }
    for(i=1; i<=m; i++)
    {
        a=o[v[i]];
        b=o[v1[i]];
        while(b!=0)
        {
            r=a%b;
            a=b;
            b=r;
        }
        if(a==d[i])
            continue;
        else
        {
            cout<<-1;
            return 0;
        }
    }
        for(i=1; i<=n; i++)
            cout<<o[i]<<" ";
            return 0;
}