GCD of 639, 173, 86, 131 Calculator

Given Input numbers are 639, 173, 86, 131

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 173

List of positive integer divisors of 173 that divides 173 without a remainder.

1, 173

Divisors of 86

List of positive integer divisors of 86 that divides 86 without a remainder.

1, 2, 43, 86

Divisors of 131

List of positive integer divisors of 131 that divides 131 without a remainder.

1, 131

Greatest Common Divisior

We found the divisors of 639, 173, 86, 131 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 173, 86, 131 is 1.

Therefore, GCD of numbers 639, 173, 86, 131 is 1

Given Input Data is 639, 173, 86, 131

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 173 is 173

Prime Factorization of 86 is 2 x 43

Prime Factorization of 131 is 131

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, 173) = 110547

GCD(639, 173) = ( 639 x 173 ) / 110547

GCD(639, 173) = 110547 / 110547

GCD(639, 173) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 86

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

LCM(1, 86) = 86

GCD(1, 86) = ( 1 x 86 ) / 86

GCD(1, 86) = 86 / 86

GCD(1, 86) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 131

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

LCM(1, 131) = 131

GCD(1, 131) = ( 1 x 131 ) / 131

GCD(1, 131) = 131 / 131

GCD(1, 131) = 1

GCD of 639, 173, 86, 131 is 1

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1. What is the GCD of 639, 173, 86, 131?

GCD of 639, 173, 86, 131 is 1

2. Where do I get the detailed procedure to find GCD of 639, 173, 86, 131?

You can find a detailed procedure to find GCD of 639, 173, 86, 131 on our page.

3. How to find GCD of 639, 173, 86, 131 on a calculator?

You can find the GCD of 639, 173, 86, 131 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.