MATH SOLVE

3 months ago

Q:
# What is the GCF of 131 and 8?

Accepted Solution

A:

Solution: The GCF of 131 and 8 is 1
Methods
How to find the GCF of 131 and 8 using Prime Factorization
One way to find the GCF of 131 and 8 is to compare the prime factorization of each number. To find the prime factorization, you can follow the instructions for each number here:
What are the Factors of 131?
What are the Factors of 8?
Here is the prime factorization of 131:
13
1
1
131^1
13 1 1
And this is the prime factorization of 8:
2
3
2^3
2 3
When you compare the prime factorization of these two numbers, you can see that there are no matching prime factors. When this is the case, it means that there are no common factors between these two numbers. As a result, the GCF of 131 and 8 is 1.
Thus, the GCF of 131 and 8 is: 1
How to Find the GCF of 131 and 8 by Listing All Common Factors
The first step to this method of finding the Greatest Common Factor of 131 and 8 is to find and list all the factors of each number. Again, you can see how this is done by looking at the “Factors of” articles that are linked to above.
Let’s take a look at the factors for each of these numbers, 131 and 8:
Factors of 131: 1, 131
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 131 and 8 is 1.
Find the GCF of Other Number Pairs
Want more practice? Try some of these other GCF problems:
What is the GCF of 6 and 111?
What is the GCF of 133 and 94?
What is the GCF of 113 and 77?
What is the GCF of 39 and 117?
What is the GCF of 144 and 17?