GCD of 428, 866, 20, 127 Calculator

Given Input numbers are 428, 866, 20, 127

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

Divisors of 428

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

1, 2, 4, 107, 214, 428

Divisors of 866

List of positive integer divisors of 866 that divides 866 without a remainder.

1, 2, 433, 866

Divisors of 20

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

1, 2, 4, 5, 10, 20

Divisors of 127

List of positive integer divisors of 127 that divides 127 without a remainder.

1, 127

Greatest Common Divisior

We found the divisors of 428, 866, 20, 127 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 428, 866, 20, 127 is 1.

Therefore, GCD of numbers 428, 866, 20, 127 is 1

Given Input Data is 428, 866, 20, 127

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

Prime Factorization of 428 is 2 x 2 x 107

Prime Factorization of 866 is 2 x 433

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 127 is 127

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(428, 866) = 185324

GCD(428, 866) = ( 428 x 866 ) / 185324

GCD(428, 866) = 370648 / 185324

GCD(428, 866) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 20

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

LCM(2, 20) = 20

GCD(2, 20) = ( 2 x 20 ) / 20

GCD(2, 20) = 40 / 20

GCD(2, 20) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 127

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

LCM(2, 127) = 254

GCD(2, 127) = ( 2 x 127 ) / 254

GCD(2, 127) = 254 / 254

GCD(2, 127) = 1

GCD of 428, 866, 20, 127 is 1

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1. What is the GCD of 428, 866, 20, 127?

GCD of 428, 866, 20, 127 is 1

2. Where do I get the detailed procedure to find GCD of 428, 866, 20, 127?

You can find a detailed procedure to find GCD of 428, 866, 20, 127 on our page.

3. How to find GCD of 428, 866, 20, 127 on a calculator?

You can find the GCD of 428, 866, 20, 127 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.