What is the greatest common factor of 8xy5−16x2y3+20x4y4

Greatest common factor(GCF) of a polynomial states that the largest polynomial that divides into the polynomials.

Given that:

First find the GCF of the expression.

The GCF of 8, 16 and 20 is 4.

The GCF of is x.

And the

GCF of is

Combine these to find the GCF of the polynomial is,

then;

=

Therefore, the greatest common factor of

is