GCD of 639, 522, 920, 615 Calculator

Given Input numbers are 639, 522, 920, 615

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

Divisors of 639

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

1, 3, 9, 71, 213, 639

Divisors of 522

List of positive integer divisors of 522 that divides 522 without a remainder.

1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522

Divisors of 920

List of positive integer divisors of 920 that divides 920 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

Divisors of 615

List of positive integer divisors of 615 that divides 615 without a remainder.

1, 3, 5, 15, 41, 123, 205, 615

Greatest Common Divisior

We found the divisors of 639, 522, 920, 615 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 522, 920, 615 is 1.

Therefore, GCD of numbers 639, 522, 920, 615 is 1

Given Input Data is 639, 522, 920, 615

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 522 is 2 x 3 x 3 x 29

Prime Factorization of 920 is 2 x 2 x 2 x 5 x 23

Prime Factorization of 615 is 3 x 5 x 41

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(639, 522) = 37062

GCD(639, 522) = ( 639 x 522 ) / 37062

GCD(639, 522) = 333558 / 37062

GCD(639, 522) = 9

Step2:

Here we consider the GCD from the above i.e. 9 as first number and the next as 920

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

LCM(9, 920) = 8280

GCD(9, 920) = ( 9 x 920 ) / 8280

GCD(9, 920) = 8280 / 8280

GCD(9, 920) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 615

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

LCM(1, 615) = 615

GCD(1, 615) = ( 1 x 615 ) / 615

GCD(1, 615) = 615 / 615

GCD(1, 615) = 1

GCD of 639, 522, 920, 615 is 1

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1. What is the GCD of 639, 522, 920, 615?

GCD of 639, 522, 920, 615 is 1

2. Where do I get the detailed procedure to find GCD of 639, 522, 920, 615?

You can find a detailed procedure to find GCD of 639, 522, 920, 615 on our page.

3. How to find GCD of 639, 522, 920, 615 on a calculator?

You can find the GCD of 639, 522, 920, 615 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.