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GCD of 638, 120, 818 Calculator

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


Online GCD Calculator is useful to find the GCD of 638, 120, 818 quickly. Get the easiest ways to solve the greatest common divisor of 638, 120, 818 i.e 2 in different methods as follows.

GCD of

How to Find GCD of Numbers 638, 120, 818 with Factoring?

Given Input numbers are 638, 120, 818

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

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 120 :

The positive integer divisors of 120 that completely divides 120 are.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

Divisors of 818 :

The positive integer divisors of 818 that completely divides 818 are.

1, 2, 409, 818


GCD of numbers is the greatest common divisor

So, the GCD (638, 120, 818) = 2.

Find GCD of 638, 120, 818 using Prime Factorization

Given numbers are 638, 120, 818

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 120 are 2 x 2 x 2 x 3 x 5

Prime factors of 818 are 2 x 409

The highest common occurrence is 21

Therefore, GCD of 638, 120, 818 is 2.

Steps to Calculate GCD of 638, 120, 818 using LCM Formula

Given numbers are 638, 120, 818

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

Apply this formula for all numbers.

Step1:

LCM(638, 120) = 38280

GCD(638, 120) = ( 638 x 120 ) / 38280

= 638 / 120

= 638


Step2:

LCM(2, 818) = 818

GCD(2, 818) = ( 2 x 818 ) / 818

= 2 / 818

= 2


So, Greatest Common Divisor of 638, 120, 818 is 2

GCD of Numbers Calculation Examples

Greatest Common Divisor of 638, 120, 818

Given numbers are 638, 120, 818
The greatest common divisor of numbers 638, 120, 818 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 120, 818 is 2.

FAQs on GCD of 638, 120, 818 Calculator

1. What is the GCD of 638, 120, 818?

GCD of given numbers 638, 120, 818 is 2


2. How to calculate the greatest common divisor of 638, 120, 818?

We can find the highest common divisor of 638, 120, 818 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 638, 120, 818 i.e 2.


3. How can I use the GCD of 638, 120, 818Calculator?

Out the numbers 638, 120, 818 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.