MATH SOLVE

1 month ago

Q:
# What is the GCF of 40 and 148?

Accepted Solution

A:

Solution: The GCF of 40 and 148 is 4MethodsHow to find the GCF of 40 and 148 using Prime FactorizationOne way to find the GCF of 40 and 148 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 40?What are the Factors of 148?Here is the prime factorization of 40:23×512^3 × 5^123×51And this is the prime factorization of 148:22×3712^2 × 37^122×371When 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 40 and 148 by multiplying all the matching prime factors to get a GCF of 40 and 148 as 4:Thus, the GCF of 40 and 148 is: 4How to Find the GCF of 40 and 148 by Listing All Common FactorsThe first step to this method of finding the Greatest Common Factor of 40 and 148 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, 40 and 148:Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40Factors of 148: 1, 2, 4, 37, 74, 148When you compare the two lists of factors, you can see that the common factor(s) are 1, 2, 4. Since 4 is the largest of these common factors, the GCF of 40 and 148 would be 4.Find the GCF of Other Number PairsWant more practice? Try some of these other GCF problems:What is the GCF of 39 and 19?What is the GCF of 14 and 123?What is the GCF of 52 and 104?What is the GCF of 42 and 130?What is the GCF of 78 and 61?