GCD of 56, 422, 129, 520 Calculator

Given Input numbers are 56, 422, 129, 520

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

Divisors of 56

List of positive integer divisors of 56 that divides 56 without a remainder.

1, 2, 4, 7, 8, 14, 28, 56

Divisors of 422

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

1, 2, 211, 422

Divisors of 129

List of positive integer divisors of 129 that divides 129 without a remainder.

1, 3, 43, 129

Divisors of 520

List of positive integer divisors of 520 that divides 520 without a remainder.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520

Greatest Common Divisior

We found the divisors of 56, 422, 129, 520 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 56, 422, 129, 520 is 1.

Therefore, GCD of numbers 56, 422, 129, 520 is 1

Given Input Data is 56, 422, 129, 520

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

Prime Factorization of 56 is 2 x 2 x 2 x 7

Prime Factorization of 422 is 2 x 211

Prime Factorization of 129 is 3 x 43

Prime Factorization of 520 is 2 x 2 x 2 x 5 x 13

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(56, 422) = 11816

GCD(56, 422) = ( 56 x 422 ) / 11816

GCD(56, 422) = 23632 / 11816

GCD(56, 422) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 129

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

LCM(2, 129) = 258

GCD(2, 129) = ( 2 x 129 ) / 258

GCD(2, 129) = 258 / 258

GCD(2, 129) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 520

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

LCM(1, 520) = 520

GCD(1, 520) = ( 1 x 520 ) / 520

GCD(1, 520) = 520 / 520

GCD(1, 520) = 1

GCD of 56, 422, 129, 520 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 20, 286, 568, 961
• GCD of 11, 612, 663, 763
• GCD of 57, 778, 607, 858
• GCD of 82, 715, 728, 804
• GCD of 32, 744, 379, 279

1. What is the GCD of 56, 422, 129, 520?

GCD of 56, 422, 129, 520 is 1

2. Where do I get the detailed procedure to find GCD of 56, 422, 129, 520?

You can find a detailed procedure to find GCD of 56, 422, 129, 520 on our page.

3. How to find GCD of 56, 422, 129, 520 on a calculator?

You can find the GCD of 56, 422, 129, 520 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.