14 28 21 lcm July 8, 2019 16 32 64 128 14 28 21 lcm answer 14 28 21 lcm solution 14 21 28 lcm and hcf Lcm of 14 28 21 prime factorization Lcm of 14 21 28 and 35 Lcm of 14 21 28 by prime factorization method 14 21 lcm 14 22 lcm Lcm of 1/2