How do you find the GCF of #21x^2y, 63xy^2#?

1 Answer
Jan 6, 2017

Answer:

21xy

Explanation:

factorize 21, we get = #3xx7#

factorize 63, we get = #3xx3xx7#

highest common factor between #x^2 , x = x#

highest common factor between #y, y^2 = y#

GCF = #3xx7xx x xx y#