GCD of 128, 637, 13, 459 Calculator

Given Input numbers are 128, 637, 13, 459

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

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 637

List of positive integer divisors of 637 that divides 637 without a remainder.

1, 7, 13, 49, 91, 637

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 459

List of positive integer divisors of 459 that divides 459 without a remainder.

1, 3, 9, 17, 27, 51, 153, 459

Greatest Common Divisior

We found the divisors of 128, 637, 13, 459 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 128, 637, 13, 459 is 1.

Therefore, GCD of numbers 128, 637, 13, 459 is 1

Given Input Data is 128, 637, 13, 459

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

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 637 is 7 x 7 x 13

Prime Factorization of 13 is 13

Prime Factorization of 459 is 3 x 3 x 3 x 17

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(128, 637) = 81536

GCD(128, 637) = ( 128 x 637 ) / 81536

GCD(128, 637) = 81536 / 81536

GCD(128, 637) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 13

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

LCM(1, 13) = 13

GCD(1, 13) = ( 1 x 13 ) / 13

GCD(1, 13) = 13 / 13

GCD(1, 13) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 459

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

LCM(1, 459) = 459

GCD(1, 459) = ( 1 x 459 ) / 459

GCD(1, 459) = 459 / 459

GCD(1, 459) = 1

GCD of 128, 637, 13, 459 is 1

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• GCD of 380, 101, 43, 434
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1. What is the GCD of 128, 637, 13, 459?

GCD of 128, 637, 13, 459 is 1

2. Where do I get the detailed procedure to find GCD of 128, 637, 13, 459?

You can find a detailed procedure to find GCD of 128, 637, 13, 459 on our page.

3. How to find GCD of 128, 637, 13, 459 on a calculator?

You can find the GCD of 128, 637, 13, 459 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.