find the greatest common factor of the two expressions?

Question

18 u^7 w z^2 and 26 u^4 w^6

simplify answer as much as possible

Answer 1

Consider the coefficients and each variable separately.
The coefficients: with 18 and 26, the best you do is pull a "2" out. 13 is prime, so that ends that.
For u, u^4 can be removed from the two expressions.
For w, w can be removed from the two expressions.
For z, since it appears in only one expression, there is no further factoring.
So the gcf is 2x u^4 x w

Answer 2

gcf(18 u^7 w z² and 26 u^4 w^6) = 2u^4w
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