What is the GCF of 221 and 972?
The GCF of 221 and 972 is 1.
Steps to find GCF
- Find the prime factorization of 221
221 = 13 × 17 - Find the prime factorization of 972
972 = 2 × 2 × 3 × 3 × 3 × 3 × 3 - 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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Related
Find HCF of: 442 & 1944 663 & 2916 1105 & 4860 1547 & 6804 442 & 972 221 & 1944 663 & 972 221 & 2916 1105 & 972 221 & 4860 1547 & 972 221 & 6804
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).