What is the greatest common factor (GCF) of 84 and 126.
Note
Factorization: 84 = 2^2 × 3 × 7 and 126 = 2 × 3^2 × 7, so common factors multiply to 2 × 3 × 7 = 42.
What is the greatest common factor (GCF) of 84 and 126.
Factorization: 84 = 2^2 × 3 × 7 and 126 = 2 × 3^2 × 7, so common factors multiply to 2 × 3 × 7 = 42.