What is the GCF of 7 and 18?
The GCF of 7 and 18 is 1.
Steps to find GCF
- Find the prime factorization of 7
7 = 7 - Find the prime factorization of 18
18 = 2 × 3 × 3 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 1
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Related
Find hcf of: 14 & 36 21 & 54 35 & 90 49 & 126 14 & 18 7 & 36 21 & 18 7 & 54 35 & 18 7 & 90 49 & 18 7 & 126
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).