What is the GCF of 12 and 126?
The GCF of 12 and 126 is 6.
Steps to find GCF
- Find the prime factorization of 12
12 = 2 × 2 × 3 - Find the prime factorization of 126
126 = 2 × 3 × 3 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2 × 3 - GCF = 6
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GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).