Solution: The GCF of 1 and 8 is 1
Methods
How to Find the GCF of 1 and 8 by Listing All Common Factors
To get started using this method of finding the Greatest Common Factor of [n] and [m], we should first find and list all the factors of each number. You can see how this is done by looking at the “Factors of” articles that are linked to below.
Let’s take a look at the factors for each of these numbers, 1 and 8:
Factors of 1 : 1
Factors of 8 : 1, 2, 4, 8
When you compare the two lists of factors, you can see that the only common factor is 1. So, in this case, the GCF of 1 and 8 is 1.
Continue Practicing by Finding the GCF of Other Numbers
Take a look at some of our other walkthroughs, and you’ll be sure to be an expert at finding the GCF of any numbers in no time!
What is the GCF of 114 and 42?
What is the GCF of 136 and 117?
What is the GCF of 127 and 77?
What is the GCF of 141 and 62?
What is the GCF of 138 and 104?