What is the GCF of 7840 and 4538?
The GCF of 7840 and 4538 is 2.
Steps to find GCF
- Find the prime factorization of 7840
7840 = 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 - Find the prime factorization of 4538
4538 = 2 × 2269 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).