Q:

What is the GCF of 66 and 95?

Accepted Solution

A:
Solution: The GCF of 66 and 95 is 1 Methods How to find the GCF of 66 and 95 using Prime Factorization One way to find the GCF of 66 and 95 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 66? What are the Factors of 95? Here is the prime factorization of 66: 2 1 Γ— 3 1 Γ— 1 1 1 2^1 Γ— 3^1 Γ— 11^1 2 1 Γ— 3 1 Γ— 1 1 1 And this is the prime factorization of 95: 5 1 Γ— 1 9 1 5^1 Γ— 19^1 5 1 Γ— 1 9 1 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 66 and 95 is 1. Thus, the GCF of 66 and 95 is: 1 How to Find the GCF of 66 and 95 by Listing All Common Factors The first step to this method of finding the Greatest Common Factor of 66 and 95 is to find and list all the factors of each number. Again, you can see how this is done by looking at the β€œFactors of” articles that are linked to above. Let’s take a look at the factors for each of these numbers, 66 and 95: Factors of 66: 1, 2, 3, 6, 11, 22, 33, 66 Factors of 95: 1, 5, 19, 95 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 66 and 95 is 1. Find the GCF of Other Number Pairs Want more practice? Try some of these other GCF problems: What is the GCF of 68 and 129? What is the GCF of 111 and 63? What is the GCF of 99 and 79? What is the GCF of 117 and 57? What is the GCF of 58 and 96?