#include <cstdio>
 
struct str{int x,y,z;} u[100001];
int v[10001];
 
int cmmdc(int x,int y){if (x) return cmmdc(y%x,x);else return y;}
 
int main()
{
    int n,m,i;
    freopen("oz.in","r",stdin);
    freopen("oz.out","w",stdout);
    scanf("%d %d\n",&n,&m);
    for (i=1;i<=n;++i)
        v[i]=1;
    for (i=1;i<=m;++i)
    {
        scanf("%d %d %d\n",&u[i].x,&u[i].y,&u[i].z);
        v[u[i].x]=v[u[i].x]/cmmdc(v[u[i].x],u[i].z)*u[i].z;
        v[u[i].y]=v[u[i].y]/cmmdc(v[u[i].y],u[i].z)*u[i].z;
    }
    for (i=1;i<=m;++i)
        if (cmmdc(v[u[i].x],v[u[i].y])!=u[i].z)
        {
            printf("-1\n");
            return 0;
        }
    for (i=1;i<=n;++i)
        printf("%d ",v[i]);
    printf("\n");
    return 0;
}