The greatest common factor of two or more numbers is the largest factor they have in common.
To find it, we need to find the prime factorization of both numbers and identify their common prime factors.
Then, the answers are:
[tex]\begin{gathered} \text{Blank 3: prime factor} \\ \text{Blank 2: prime factorization} \\ \text{Blank 1: largest factor} \end{gathered}[/tex]
