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GCF of 30, 70, 40, 180

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023

Are you looking for a way to calculate the greatest common factor of 30, 70, 40, 180 ? Well, you’re in luck! In this article, we will be showing you how to use two different methods to find the GCF of 30, 70, 40, 180. We also provide a free GCF of Two or More Numbers Calculator to obtain instant results.

 

GCF of:

Detailed Solution to Find GCF of 30, 70, 40, 180

Given numbers are 30, 70, 40, 180
The greatest common factor of 30, 70, 40, 180 can be found by using the following 2 different methods.
The GCF of 30, 70, 40, 180 is 10.

GCF of 30,70,40,180 Using Prime Factorization Method

Prime factorization is basically division by prime numbers only. Keep dividing all numbers by the same prime number, until the numbers can no longer be divided by a single prime number. Then, multiply all the prime numbers that are on the left side.

2 30, 70, 40, 180
5 15, 35, 20, 90
3, 7, 4, 18

∴ Thus, the GCF of given numbers is 2 x 5 = 10

How to Find the Greatest Common Factor of 30,70,40,180 using the Common Factor Method?

The common factor method requires listing down all the factors of 30,70,40,180 that divide each of these numbers without leaving a remainder. To begin, let us list down the factors

list down the factors of 30

1,2,3,5,6,10,15,30

list down the factors of 70

1,2,5,7,10,14,35,70

list down the factors of 40

1,2,4,5,8,10,20,40

list down the factors of 180

1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90,180

Greatest Common Factor

Once you have listed down the factors, all you have to do is look for the highest factor that appears in all the three aforementioned lists. The greatest number that we can see in all lists is 10 . Therefore, the GCF of 30,70,40,180 is 10

Frequently Asked Questions on GCF of 30, 70, 40, 180

1. What is the GCF of 30, 70, 40, 180 ?

Answer: GCF of 30, 70, 40, 180 is 10.

2. How to calculate the GCF of 30, 70, 40, 180 ?

Answer: You can use two different methods: listing down the factors, and prime factorization. If you want to use the listing method, then simply write down all the factors of 30, 70, 40, 180. Then, select the greatest number that appears in lists. From this, you will see that the GCF is 10. Next, you can also use the prime factorization method to divide the numbers by prime numbers. Then, multiply the prime numbers on the side to get your answer, which is 10.