GCD of 634, 211, 647, 428 Calculator

Given Input numbers are 634, 211, 647, 428

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

Divisors of 634

List of positive integer divisors of 634 that divides 634 without a remainder.

1, 2, 317, 634

Divisors of 211

List of positive integer divisors of 211 that divides 211 without a remainder.

1, 211

Divisors of 647

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

1, 647

Divisors of 428

List of positive integer divisors of 428 that divides 428 without a remainder.

1, 2, 4, 107, 214, 428

Greatest Common Divisior

We found the divisors of 634, 211, 647, 428 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 634, 211, 647, 428 is 1.

Therefore, GCD of numbers 634, 211, 647, 428 is 1

Given Input Data is 634, 211, 647, 428

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

Prime Factorization of 634 is 2 x 317

Prime Factorization of 211 is 211

Prime Factorization of 647 is 647

Prime Factorization of 428 is 2 x 2 x 107

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(634, 211) = 133774

GCD(634, 211) = ( 634 x 211 ) / 133774

GCD(634, 211) = 133774 / 133774

GCD(634, 211) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 647

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

LCM(1, 647) = 647

GCD(1, 647) = ( 1 x 647 ) / 647

GCD(1, 647) = 647 / 647

GCD(1, 647) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 428

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

LCM(1, 428) = 428

GCD(1, 428) = ( 1 x 428 ) / 428

GCD(1, 428) = 428 / 428

GCD(1, 428) = 1

GCD of 634, 211, 647, 428 is 1

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1. What is the GCD of 634, 211, 647, 428?

GCD of 634, 211, 647, 428 is 1

2. Where do I get the detailed procedure to find GCD of 634, 211, 647, 428?

You can find a detailed procedure to find GCD of 634, 211, 647, 428 on our page.

3. How to find GCD of 634, 211, 647, 428 on a calculator?

You can find the GCD of 634, 211, 647, 428 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.