Solution: The GCF of 95 and 64 is 1
Methods
How to find the GCF of 95 and 64 using Prime Factorization
One way to find the GCF of 95 and 64 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 95?
What are the Factors of 64?
Here is the prime factorization of 95:
5
1
×
1
9
1
5^1 × 19^1
5 1 × 1 9 1
And this is the prime factorization of 64:
2
6
2^6
2 6
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 95 and 64 is 1.
Thus, the GCF of 95 and 64 is: 1
How to Find the GCF of 95 and 64 by Listing All Common Factors
The first step to this method of finding the Greatest Common Factor of 95 and 64 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, 95 and 64:
Factors of 95: 1, 5, 19, 95
Factors of 64: 1, 2, 4, 8, 16, 32, 64
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 95 and 64 is 1.
Find the GCF of Other Number Pairs
Want more practice? Try some of these other GCF problems:
What is the GCF of 126 and 147?
What is the GCF of 56 and 46?
What is the GCF of 150 and 24?
What is the GCF of 107 and 38?
What is the GCF of 97 and 136?