What is the GCF of 97 and 3920?
The GCF of 97 and 3920 is 1.
Steps to find GCF
- Find the prime factorization of 97
97 = 97 - Find the prime factorization of 3920
3920 = 2 × 2 × 2 × 2 × 5 × 7 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Note that there are no common prime factors. - Therefore, GCF = 1 (since 1 is a factor of every number)
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).