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GCD of 123, 818, 42 Calculator

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


Online GCD Calculator is useful to find the GCD of 123, 818, 42 quickly. Get the easiest ways to solve the greatest common divisor of 123, 818, 42 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 123, 818, 42 with Factoring?

Given Input numbers are 123, 818, 42

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

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

Divisors of 818 :

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

1, 2, 409, 818

Divisors of 42 :

The positive integer divisors of 42 that completely divides 42 are.

1, 2, 3, 6, 7, 14, 21, 42


GCD of numbers is the greatest common divisor

So, the GCD (123, 818, 42) = 1.

Find GCD of 123, 818, 42 using Prime Factorization

Given numbers are 123, 818, 42

The list of prime factors of all numbers are

Prime factors of 123 are 3 x 41

Prime factors of 818 are 2 x 409

Prime factors of 42 are 2 x 3 x 7

The above numbers do not have any common prime factor. So GCD is 1

Steps to Calculate GCD of 123, 818, 42 using LCM Formula

Given numbers are 123, 818, 42

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

Apply this formula for all numbers.

Step1:

LCM(123, 818) = 100614

GCD(123, 818) = ( 123 x 818 ) / 100614

= 123 / 818

= 123


Step2:

LCM(1, 42) = 42

GCD(1, 42) = ( 1 x 42 ) / 42

= 1 / 42

= 1


So, Greatest Common Divisor of 123, 818, 42 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 123, 818, 42

Given numbers are 123, 818, 42
The greatest common divisor of numbers 123, 818, 42 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 818, 42 is 1.

FAQs on GCD of 123, 818, 42 Calculator

1. What is the GCD of 123, 818, 42?

GCD of given numbers 123, 818, 42 is 1


2. How to calculate the greatest common divisor of 123, 818, 42?

We can find the highest common divisor of 123, 818, 42 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 123, 818, 42 i.e 1.


3. How can I use the GCD of 123, 818, 42Calculator?

Out the numbers 123, 818, 42 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.