GCD of 422, 154, 81, 563 Calculator

Given Input numbers are 422, 154, 81, 563

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 422

List of positive integer divisors of 422 that divides 422 without a remainder.

1, 2, 211, 422

Divisors of 154

List of positive integer divisors of 154 that divides 154 without a remainder.

1, 2, 7, 11, 14, 22, 77, 154

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 563

List of positive integer divisors of 563 that divides 563 without a remainder.

1, 563

Greatest Common Divisior

We found the divisors of 422, 154, 81, 563 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 422, 154, 81, 563 is 1.

Therefore, GCD of numbers 422, 154, 81, 563 is 1

Given Input Data is 422, 154, 81, 563

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 422 is 2 x 211

Prime Factorization of 154 is 2 x 7 x 11

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 563 is 563

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(422, 154) = 32494

GCD(422, 154) = ( 422 x 154 ) / 32494

GCD(422, 154) = 64988 / 32494

GCD(422, 154) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 81

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

LCM(2, 81) = 162

GCD(2, 81) = ( 2 x 81 ) / 162

GCD(2, 81) = 162 / 162

GCD(2, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 563

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

LCM(1, 563) = 563

GCD(1, 563) = ( 1 x 563 ) / 563

GCD(1, 563) = 563 / 563

GCD(1, 563) = 1

GCD of 422, 154, 81, 563 is 1

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1. What is the GCD of 422, 154, 81, 563?

GCD of 422, 154, 81, 563 is 1

2. Where do I get the detailed procedure to find GCD of 422, 154, 81, 563?

You can find a detailed procedure to find GCD of 422, 154, 81, 563 on our page.

3. How to find GCD of 422, 154, 81, 563 on a calculator?

You can find the GCD of 422, 154, 81, 563 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.