GCD of 646, 137, 56, 637 Calculator

Given Input numbers are 646, 137, 56, 637

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

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 137

List of positive integer divisors of 137 that divides 137 without a remainder.

1, 137

Divisors of 56

List of positive integer divisors of 56 that divides 56 without a remainder.

1, 2, 4, 7, 8, 14, 28, 56

Divisors of 637

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

1, 7, 13, 49, 91, 637

Greatest Common Divisior

We found the divisors of 646, 137, 56, 637 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 646, 137, 56, 637 is 1.

Therefore, GCD of numbers 646, 137, 56, 637 is 1

Given Input Data is 646, 137, 56, 637

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

Prime Factorization of 646 is 2 x 17 x 19

Prime Factorization of 137 is 137

Prime Factorization of 56 is 2 x 2 x 2 x 7

Prime Factorization of 637 is 7 x 7 x 13

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(646, 137) = 88502

GCD(646, 137) = ( 646 x 137 ) / 88502

GCD(646, 137) = 88502 / 88502

GCD(646, 137) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 56

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

LCM(1, 56) = 56

GCD(1, 56) = ( 1 x 56 ) / 56

GCD(1, 56) = 56 / 56

GCD(1, 56) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 637

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

LCM(1, 637) = 637

GCD(1, 637) = ( 1 x 637 ) / 637

GCD(1, 637) = 637 / 637

GCD(1, 637) = 1

GCD of 646, 137, 56, 637 is 1

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• GCD of 340, 268, 99, 854
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1. What is the GCD of 646, 137, 56, 637?

GCD of 646, 137, 56, 637 is 1

2. Where do I get the detailed procedure to find GCD of 646, 137, 56, 637?

You can find a detailed procedure to find GCD of 646, 137, 56, 637 on our page.

3. How to find GCD of 646, 137, 56, 637 on a calculator?

You can find the GCD of 646, 137, 56, 637 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.