関連ワード:  find the lcm of 15 and 20 by prime factorization method    find the lcm of 10 15 and 20 by prime factorization method    find the lcm of 12 and 15 by prime factorization method    find the lcm of 18 and 24 by prime factorization method    find the lcm of 12 15 and 21 by prime factorization method  
結果 : find the lcm of 15 and 20 by prime factorization method