What is the GCF of 2156 and 7557?
The GCF of 2156 and 7557 is 11.
Steps to find GCF
- Find the prime factorization of 2156
2156 = 2 × 2 × 7 × 7 × 11 - Find the prime factorization of 7557
7557 = 3 × 11 × 229 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 11
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).