Solution: The GCF of 110 and 32 is 2
Methods
How to find the GCF of 110 and 32 using Prime Factorization
One way to find the GCF of 110 and 32 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 110?
What are the Factors of 32?
Here is the prime factorization of 110:
2
1
×
5
1
×
1
1
1
2^1 × 5^1 × 11^1
2 1 × 5 1 × 1 1 1
And this is the prime factorization of 32:
2
5
2^5
2 5
When you compare the prime factorization of these two numbers, you can see that there are matching prime factors. You can now find the Greatest Common Factor of 110 and 32 by multiplying all the matching prime factors to get a GCF of 110 and 32 as 4:
Thus, the GCF of 110 and 32 is: 4
How to Find the GCF of 110 and 32 by Listing All Common Factors
The first step to this method of finding the Greatest Common Factor of 110 and 32 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, 110 and 32:
Factors of 110: 1, 2, 5, 10, 11, 22, 55, 110
Factors of 32: 1, 2, 4, 8, 16, 32
When you compare the two lists of factors, you can see that the common factor(s) are 1, 2. Since 2 is the largest of these common factors, the GCF of 110 and 32 would be 2.
Find the GCF of Other Number Pairs
Want more practice? Try some of these other GCF problems:
What is the GCF of 109 and 58?
What is the GCF of 105 and 98?
What is the GCF of 38 and 35?
What is the GCF of 88 and 80?
What is the GCF of 95 and 24?