The GCF is 14.
gcf(126, 196, 378) = 14. Using prime factorization: 126 = 2 x 3² x 7 196 = 2² x 7² 378 = 2 x 3³ x 7 hcf = 2 x 7 = 14
I'm guessing you mean HCF. You need to find the different factors of each number and then find the biggest one that is common in all 3:126= 1 & 126, 196=1 & 196, 378=1 & 378, 2 & 63, 2 & 98, 2 & 189, 3 & 42, 4 & 49, 3 &126, 6 & 21, 7 & 28, 6 & 63, 7 & 18, 14 &14 7 & 54, 9 & 14 9 & 42, 14 & 27, 18 & 21 I believe that the highest common factor would be 14
The GCF is 126.
126
LCM is 126, which is the multiple of the highest power of prime factors in the given numbers (2 x 33 x 7).
It is: 44
The GCF is 6.
The GCF is 18.
63
The least common multiple (LCM) of 54 and 126 is 378.
The GCF is 21.