Find the greatest common factor (GCF/HCF) of the following polynomials:

The numerical coefficients of given numerical are 9, 15, 16, 21

Greatest common factor of 9, 15, 16, 21 is 3.


Common literals appearing in given numerical are x and y


Smallest power of x in four monomials = 1


Smallest power of y in four monomials = 0


Monomials of common literals with smallest power= x


Hence, the greatest common factor = 3x


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