Solution: The GCF of 32 and 111 is 1MethodsHow to find the GCF of 32 and 111 using Prime FactorizationOne way to find the GCF of 32 and 111 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 32?What are the Factors of 111?Here is the prime factorization of 32:252^525And this is the prime factorization of 111:31×3713^1 × 37^131×371When 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 32 and 111 is 1.Thus, the GCF of 32 and 111 is: 1How to Find the GCF of 32 and 111 by Listing All Common FactorsThe first step to this method of finding the Greatest Common Factor of 32 and 111 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, 32 and 111:Factors of 32: 1, 2, 4, 8, 16, 32Factors of 111: 1, 3, 37, 111When you compare the two lists of factors, you can see that the only common factor is 1. So, in this case, the GCF of 32 and 111 is 1.Find the GCF of Other Number PairsWant more practice? Try some of these other GCF problems:What is the GCF of 12 and 61?What is the GCF of 77 and 129?What is the GCF of 50 and 117?What is the GCF of 113 and 128?What is the GCF of 31 and 35?