**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 × 2 × 2.

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.

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