#include <stdio.h>
#include <fstream>
using namespace std;

#define in "oz.in"
#define out "oz.out"
#define dim 10001
#define eps 1e-9

const long long Max = 2000000000LL;
int N, M;
long long A[dim];
bool Sel[dim];

inline int Cmmdc(int a, int b) { 
       if ( !b ) return a;
       return Cmmdc(b,a%b);
} 

int main()
{
    int X, Y, D, H = 0, K;
    freopen(in,"r",stdin);
    freopen(out,"w",stdout);
    
    memset(A,0,sizeof(A));
    memset(Sel,0,sizeof(Sel));
    
    scanf("%d%d", &N, &M);
    for ( ; M; M-- )
    {
        scanf("%d%d%d", &X, &Y, &D);
        
        if ( A[X] == 0 ) A[X] = D;
        if ( A[Y] == 0 ) A[Y] = D; 
        
        K = Cmmdc(A[X],D);
        if ( A[X] - (double)(Max/(D/K)) > eps )
        {
             printf("-1");
             return 0;
        }
        A[X] = (D/K)*A[X];
        
        K = Cmmdc(A[Y],D);
        if ( A[Y] - (double)(Max/(D/K)) > eps )
        {
             printf("-1");
             return 0;
        }
        A[Y] = (D/K)*A[Y];
        
        if ( !Sel[X] ) H++, Sel[X] = 1;
        if ( !Sel[Y] ) H++, Sel[Y] = 1;
    }
    
    if ( H < N ) 
    {
         printf("-1");
         return 0;
    }
    
    for ( int i = 1; i <= N; i++ )
        printf("%d ", A[i]);    
}