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Online Calculators > Math Calculators
GCF of 8 and 5
What is the GCF of 8 and 5? - The GCF of 8 and 5 is 1.
Follow the step by step instructions on how to find the great common factor of 8 and 5.
What is the greatest common factor of 8 and 5?
How to find the gcf of 8 and 5?
Method 1 - Listing Factors
To find the gcf of 8 and 5, we first need to find the factors of 8 and 5 and then choose the greatest common factor that are dividable by both 8 and 5.
Factors of 8 = 1, 2, 4, 8
Factors of 5 = 1, 5
The greatest common factor of 8 and 5 is 1, because 1 is the largest number that is divisible by both numbers.
Method 2 - Prime Factorization
Another method to find the greatest common factor of 8 and 5 is by using the prime factorization method.
To use prime factorization, we first need to find the prime factors of 8 and 5, and then get the GCF by multiplying all the common prime factors from the two sets.
Prime factorization of 8 = 2 x 2 x 2
Prime factorization of 5 = 5
Common prime factors = = 1
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