Method 1:
\List the factors of each number.
\Factors of 6: 2, 3, 6
\Factors of 8: 2, 4, 8
\\
Identify the greatest common factor.
\The greatest common factor of 6 and 8 is 2.
\Method 2:
\Write the prime factorization of each number.
\6 = 2 × 3.
\8 = 2 × 4.
\The GCF is the product of the common prime factors in each number.
\GCF = 2.
\\
The greatest common factor of 6 and 8 is 2.
\The greatest common factor of 6 and 8 is 2.