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GCD of 18, 80, 34, 72 Calculator

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


Online GCD Calculator is useful to find the GCD of 18, 80, 34, 72 quickly. Get the easiest ways to solve the greatest common divisor of 18, 80, 34, 72 i.e 2 in different methods as follows.

GCD of

How to Find GCD of Numbers 18, 80, 34, 72 with Factoring?

Given Input numbers are 18, 80, 34, 72

In the factoring method, we have to find the divisors of all numbers

Divisors of 18 :

The positive integer divisors of 18 that completely divides 18 are.

1, 2, 3, 6, 9, 18

Divisors of 80 :

The positive integer divisors of 80 that completely divides 80 are.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Divisors of 34 :

The positive integer divisors of 34 that completely divides 34 are.

1, 2, 17, 34

Divisors of 72 :

The positive integer divisors of 72 that completely divides 72 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72


GCD of numbers is the greatest common divisor

So, the GCD (18, 80, 34, 72) = 2.

Find GCD of 18, 80, 34, 72 using Prime Factorization

Given numbers are 18, 80, 34, 72

The list of prime factors of all numbers are

Prime factors of 18 are 2 x 3 x 3

Prime factors of 80 are 2 x 2 x 2 x 2 x 5

Prime factors of 34 are 2 x 17

Prime factors of 72 are 2 x 2 x 2 x 3 x 3

The highest common occurrence is 21

Therefore, GCD of 18, 80, 34, 72 is 2.

Steps to Calculate GCD of 18, 80, 34, 72 using LCM Formula

Given numbers are 18, 80, 34, 72

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(18, 80) = 720

GCD(18, 80) = ( 18 x 80 ) / 720

= 18 / 80

= 18


Step2:

LCM(2, 34) = 34

GCD(2, 34) = ( 2 x 34 ) / 34

= 2 / 34

= 2


Step3:

LCM(2, 72) = 72

GCD(2, 72) = ( 2 x 72 ) / 72

= 2 / 72

= 2


So, Greatest Common Divisor of 18, 80, 34, 72 is 2

GCD of Numbers Calculation Examples

Greatest Common Divisor of 18, 80, 34, 72

Given numbers are 18, 80, 34, 72
The greatest common divisor of numbers 18, 80, 34, 72 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 18, 80, 34, 72 is 2.

FAQs on GCD of 18, 80, 34, 72 Calculator

1. What is the GCD of 18, 80, 34, 72?

GCD of given numbers 18, 80, 34, 72 is 2


2. How to calculate the greatest common divisor of 18, 80, 34, 72?

We can find the highest common divisor of 18, 80, 34, 72 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 18, 80, 34, 72 i.e 2.


3. How can I use the GCD of 18, 80, 34, 72Calculator?

Out the numbers 18, 80, 34, 72 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.