GCD of 647, 531, 20, 268 Calculator

Given Input numbers are 647, 531, 20, 268

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

Divisors of 647

List of positive integer divisors of 647 that divides 647 without a remainder.

1, 647

Divisors of 531

List of positive integer divisors of 531 that divides 531 without a remainder.

1, 3, 9, 59, 177, 531

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 268

List of positive integer divisors of 268 that divides 268 without a remainder.

1, 2, 4, 67, 134, 268

Greatest Common Divisior

We found the divisors of 647, 531, 20, 268 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 531, 20, 268 is 1.

Therefore, GCD of numbers 647, 531, 20, 268 is 1

Given Input Data is 647, 531, 20, 268

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

Prime Factorization of 647 is 647

Prime Factorization of 531 is 3 x 3 x 59

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 268 is 2 x 2 x 67

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(647, 531) = 343557

GCD(647, 531) = ( 647 x 531 ) / 343557

GCD(647, 531) = 343557 / 343557

GCD(647, 531) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 20

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

LCM(1, 20) = 20

GCD(1, 20) = ( 1 x 20 ) / 20

GCD(1, 20) = 20 / 20

GCD(1, 20) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 268

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

LCM(1, 268) = 268

GCD(1, 268) = ( 1 x 268 ) / 268

GCD(1, 268) = 268 / 268

GCD(1, 268) = 1

GCD of 647, 531, 20, 268 is 1

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• GCD of 234, 511, 95, 681
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1. What is the GCD of 647, 531, 20, 268?

GCD of 647, 531, 20, 268 is 1

2. Where do I get the detailed procedure to find GCD of 647, 531, 20, 268?

You can find a detailed procedure to find GCD of 647, 531, 20, 268 on our page.

3. How to find GCD of 647, 531, 20, 268 on a calculator?

You can find the GCD of 647, 531, 20, 268 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.