GCD of 636, 868, 23, 790 Calculator

Given Input numbers are 636, 868, 23, 790

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

Divisors of 636

List of positive integer divisors of 636 that divides 636 without a remainder.

1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

Divisors of 868

List of positive integer divisors of 868 that divides 868 without a remainder.

1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868

Divisors of 23

List of positive integer divisors of 23 that divides 23 without a remainder.

1, 23

Divisors of 790

List of positive integer divisors of 790 that divides 790 without a remainder.

1, 2, 5, 10, 79, 158, 395, 790

Greatest Common Divisior

We found the divisors of 636, 868, 23, 790 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 636, 868, 23, 790 is 1.

Therefore, GCD of numbers 636, 868, 23, 790 is 1

Given Input Data is 636, 868, 23, 790

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

Prime Factorization of 636 is 2 x 2 x 3 x 53

Prime Factorization of 868 is 2 x 2 x 7 x 31

Prime Factorization of 23 is 23

Prime Factorization of 790 is 2 x 5 x 79

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(636, 868) = 138012

GCD(636, 868) = ( 636 x 868 ) / 138012

GCD(636, 868) = 552048 / 138012

GCD(636, 868) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 23

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

LCM(4, 23) = 92

GCD(4, 23) = ( 4 x 23 ) / 92

GCD(4, 23) = 92 / 92

GCD(4, 23) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 790

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

LCM(1, 790) = 790

GCD(1, 790) = ( 1 x 790 ) / 790

GCD(1, 790) = 790 / 790

GCD(1, 790) = 1

GCD of 636, 868, 23, 790 is 1

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1. What is the GCD of 636, 868, 23, 790?

GCD of 636, 868, 23, 790 is 1

2. Where do I get the detailed procedure to find GCD of 636, 868, 23, 790?

You can find a detailed procedure to find GCD of 636, 868, 23, 790 on our page.

3. How to find GCD of 636, 868, 23, 790 on a calculator?

You can find the GCD of 636, 868, 23, 790 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.