GCD of 587, 644, 520, 639 Calculator

Given Input numbers are 587, 644, 520, 639

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

Divisors of 587

List of positive integer divisors of 587 that divides 587 without a remainder.

1, 587

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

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

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Greatest Common Divisior

We found the divisors of 587, 644, 520, 639 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 587, 644, 520, 639 is 1.

Therefore, GCD of numbers 587, 644, 520, 639 is 1

Given Input Data is 587, 644, 520, 639

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

Prime Factorization of 587 is 587

Prime Factorization of 644 is 2 x 2 x 7 x 23

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

Prime Factorization of 639 is 3 x 3 x 71

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(587, 644) = 378028

GCD(587, 644) = ( 587 x 644 ) / 378028

GCD(587, 644) = 378028 / 378028

GCD(587, 644) = 1

Step2:

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

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

GCD of 587, 644, 520, 639 is 1

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1. What is the GCD of 587, 644, 520, 639?

GCD of 587, 644, 520, 639 is 1

2. Where do I get the detailed procedure to find GCD of 587, 644, 520, 639?

You can find a detailed procedure to find GCD of 587, 644, 520, 639 on our page.

3. How to find GCD of 587, 644, 520, 639 on a calculator?

You can find the GCD of 587, 644, 520, 639 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.