GCD of 817, 855, 244, 520 Calculator

Given Input numbers are 817, 855, 244, 520

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

Divisors of 817

List of positive integer divisors of 817 that divides 817 without a remainder.

1, 19, 43, 817

Divisors of 855

List of positive integer divisors of 855 that divides 855 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Divisors of 244

List of positive integer divisors of 244 that divides 244 without a remainder.

1, 2, 4, 61, 122, 244

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 817, 855, 244, 520 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 817, 855, 244, 520 is 1.

Therefore, GCD of numbers 817, 855, 244, 520 is 1

Given Input Data is 817, 855, 244, 520

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

Prime Factorization of 817 is 19 x 43

Prime Factorization of 855 is 3 x 3 x 5 x 19

Prime Factorization of 244 is 2 x 2 x 61

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(817, 855) = 36765

GCD(817, 855) = ( 817 x 855 ) / 36765

GCD(817, 855) = 698535 / 36765

GCD(817, 855) = 19

Step2:

Here we consider the GCD from the above i.e. 19 as first number and the next as 244

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

LCM(19, 244) = 4636

GCD(19, 244) = ( 19 x 244 ) / 4636

GCD(19, 244) = 4636 / 4636

GCD(19, 244) = 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 817, 855, 244, 520 is 1

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1. What is the GCD of 817, 855, 244, 520?

GCD of 817, 855, 244, 520 is 1

2. Where do I get the detailed procedure to find GCD of 817, 855, 244, 520?

You can find a detailed procedure to find GCD of 817, 855, 244, 520 on our page.

3. How to find GCD of 817, 855, 244, 520 on a calculator?

You can find the GCD of 817, 855, 244, 520 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.