GCD of 388, 130, 27, 438 Calculator

Given Input numbers are 388, 130, 27, 438

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

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Divisors of 130

List of positive integer divisors of 130 that divides 130 without a remainder.

1, 2, 5, 10, 13, 26, 65, 130

Divisors of 27

List of positive integer divisors of 27 that divides 27 without a remainder.

1, 3, 9, 27

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Greatest Common Divisior

We found the divisors of 388, 130, 27, 438 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 388, 130, 27, 438 is 1.

Therefore, GCD of numbers 388, 130, 27, 438 is 1

Given Input Data is 388, 130, 27, 438

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

Prime Factorization of 388 is 2 x 2 x 97

Prime Factorization of 130 is 2 x 5 x 13

Prime Factorization of 27 is 3 x 3 x 3

Prime Factorization of 438 is 2 x 3 x 73

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(388, 130) = 25220

GCD(388, 130) = ( 388 x 130 ) / 25220

GCD(388, 130) = 50440 / 25220

GCD(388, 130) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 27

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

LCM(2, 27) = 54

GCD(2, 27) = ( 2 x 27 ) / 54

GCD(2, 27) = 54 / 54

GCD(2, 27) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 438

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

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

GCD(1, 438) = 438 / 438

GCD(1, 438) = 1

GCD of 388, 130, 27, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 921, 536, 89, 300
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• GCD of 848, 512, 51, 741
• GCD of 720, 951, 56, 885
• GCD of 335, 203, 68, 662

1. What is the GCD of 388, 130, 27, 438?

GCD of 388, 130, 27, 438 is 1

2. Where do I get the detailed procedure to find GCD of 388, 130, 27, 438?

You can find a detailed procedure to find GCD of 388, 130, 27, 438 on our page.

3. How to find GCD of 388, 130, 27, 438 on a calculator?

You can find the GCD of 388, 130, 27, 438 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.