Where do I get the detailed procedure to find GCD of 421, 978, 990?

You can find a detailed procedure to find GCD of 421, 978, 990 on our page.

How to find GCD of 421, 978, 990 on a calculator?

You can find the GCD of 421, 978, 990 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.

GCD of 421, 978, 990 Calculator

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

Online GCD Calculator is useful to find the GCD of 421, 978, 990 quickly. Get the easiest ways to solve the greatest common divisor of 421, 978, 990 i.e 1 in different methods as follows.

How to Find GCD of Numbers 421, 978, 990 with Factoring?

Given Input numbers are 421, 978, 990

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

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

Divisors of 978 :

The positive integer divisors of 978 that completely divides 978 are.

1, 2, 3, 6, 163, 326, 489, 978

Divisors of 990 :

The positive integer divisors of 990 that completely divides 990 are.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

GCD of numbers is the greatest common divisor

So, the GCD (421, 978, 990) = 1.

Find GCD of 421, 978, 990 using Prime Factorization

Given numbers are 421, 978, 990

The list of prime factors of all numbers are

Prime factors of 421 are 421

Prime factors of 978 are 2 x 3 x 163

Prime factors of 990 are 2 x 3 x 3 x 5 x 11

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

Steps to Calculate GCD of 421, 978, 990 using LCM Formula

Given numbers are 421, 978, 990

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

Apply this formula for all numbers.

Step1:

LCM(421, 978) = 411738

GCD(421, 978) = ( 421 x 978 ) / 411738

= 421 / 978

= 421

Step2:

LCM(1, 990) = 990

GCD(1, 990) = ( 1 x 990 ) / 990

= 1 / 990

= 1

So, Greatest Common Divisor of 421, 978, 990 is 1

GCD of Numbers Calculation Examples

Here are some samples of GCD of Numbers calculations.

Greatest Common Divisor of 421, 978, 990

Given numbers are 421, 978, 990
The greatest common divisor of numbers 421, 978, 990 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 978, 990 is 1.

FAQs on GCD of 421, 978, 990 Calculator

1. What is the GCD of 421, 978, 990?

GCD of given numbers 421, 978, 990 is 1

2. How to calculate the greatest common divisor of 421, 978, 990?

We can find the highest common divisor of 421, 978, 990 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 421, 978, 990 i.e 1.

3. How can I use the GCD of 421, 978, 990Calculator?

Out the numbers 421, 978, 990 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.