GCD of 636, 660, 27, 640 Calculator

Given Input numbers are 636, 660, 27, 640

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 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 27

List of positive integer divisors of 27 that divides 27 without a remainder.

1, 3, 9, 27

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Greatest Common Divisior

We found the divisors of 636, 660, 27, 640 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 636, 660, 27, 640 is 1.

Therefore, GCD of numbers 636, 660, 27, 640 is 1

Given Input Data is 636, 660, 27, 640

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 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 27 is 3 x 3 x 3

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

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, 660) = 34980

GCD(636, 660) = ( 636 x 660 ) / 34980

GCD(636, 660) = 419760 / 34980

GCD(636, 660) = 12

Step2:

Here we consider the GCD from the above i.e. 12 as first number and the next as 27

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

LCM(12, 27) = 108

GCD(12, 27) = ( 12 x 27 ) / 108

GCD(12, 27) = 324 / 108

GCD(12, 27) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 640

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

LCM(3, 640) = 1920

GCD(3, 640) = ( 3 x 640 ) / 1920

GCD(3, 640) = 1920 / 1920

GCD(3, 640) = 1

GCD of 636, 660, 27, 640 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 809, 877, 42, 799
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• GCD of 872, 790, 26, 807

1. What is the GCD of 636, 660, 27, 640?

GCD of 636, 660, 27, 640 is 1

2. Where do I get the detailed procedure to find GCD of 636, 660, 27, 640?

You can find a detailed procedure to find GCD of 636, 660, 27, 640 on our page.

3. How to find GCD of 636, 660, 27, 640 on a calculator?

You can find the GCD of 636, 660, 27, 640 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.