SOLUTION: hey I need to find Greatest Common Factor(GCF) 6a^2b^2 + 18ab^3

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Question 136813This question is from textbook Algebra 2
: hey
I need to find Greatest Common Factor(GCF)
6a^2b^2 + 18ab^3 This question is from textbook Algebra 2

Answer by solver91311(24713) About Me  (Show Source):
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List the prime factors of each term:

6a%5E2b%5E2
2+%2A+3+%2A+a+%2A+a+%2A+b+%2A+b

18ab%5E3
2+%2A+3+%2A+3+%2A+a+%2A+b+%2A+b+%2A+b

The two terms have:
a 2 in common
a 3 in common
an a in common
2 b's in common
GCF is the product of the common prime factors:
2+%2A+3+%2A+a+%2A+b+%2A+b = ?