GCD of 644, 426, 138, 911 Calculator

Given Input numbers are 644, 426, 138, 911

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

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 426

List of positive integer divisors of 426 that divides 426 without a remainder.

1, 2, 3, 6, 71, 142, 213, 426

Divisors of 138

List of positive integer divisors of 138 that divides 138 without a remainder.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 911

List of positive integer divisors of 911 that divides 911 without a remainder.

1, 911

Greatest Common Divisior

We found the divisors of 644, 426, 138, 911 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 426, 138, 911 is 1.

Therefore, GCD of numbers 644, 426, 138, 911 is 1

Given Input Data is 644, 426, 138, 911

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

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

Prime Factorization of 426 is 2 x 3 x 71

Prime Factorization of 138 is 2 x 3 x 23

Prime Factorization of 911 is 911

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(644, 426) = 137172

GCD(644, 426) = ( 644 x 426 ) / 137172

GCD(644, 426) = 274344 / 137172

GCD(644, 426) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 138

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

LCM(2, 138) = 138

GCD(2, 138) = ( 2 x 138 ) / 138

GCD(2, 138) = 276 / 138

GCD(2, 138) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 911

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

LCM(2, 911) = 1822

GCD(2, 911) = ( 2 x 911 ) / 1822

GCD(2, 911) = 1822 / 1822

GCD(2, 911) = 1

GCD of 644, 426, 138, 911 is 1

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• GCD of 466, 644, 214, 837
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1. What is the GCD of 644, 426, 138, 911?

GCD of 644, 426, 138, 911 is 1

2. Where do I get the detailed procedure to find GCD of 644, 426, 138, 911?

You can find a detailed procedure to find GCD of 644, 426, 138, 911 on our page.

3. How to find GCD of 644, 426, 138, 911 on a calculator?

You can find the GCD of 644, 426, 138, 911 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.