What is the GCF of 8580 and 7840?
The GCF of 8580 and 7840 is 20.
Steps to find GCF
- Find the prime factorization of 8580
8580 = 2 × 2 × 3 × 5 × 11 × 13 - Find the prime factorization of 7840
7840 = 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2 × 2 × 5 - GCF = 20
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).