Find the GCF (greatest common factor) of the following terms.
{10, 49x^3, 21}
The prime factorization of each term is:
10 = 2 * 5
49x^3 = 7^2 * x^3
21 = 3 * 7
The GCF is the product of the smallest exponent for each prime factor. Therefore, the GCF is:
GCF = 7^1 = 7