The GCF is 15.
prime
The grouping of the factors of w^2 + 30w + 81 (a perfect square) is (w + 27) and (w + 3)3 is a prime factor of 27, 30 and 81 but without two terms to compare, there won't be a GCF (not gfc)
The GCF is 3.
The GCF is 8.
The GCF is 10.
3
The GCF is 2.
The GCF is 30.
The GCF is 2.
The GCF is 15.
It is 5
1,2,6,12
5
The answer is 5
5
The GCF is 15.