GCD of 27, 621, 669, 920 Calculator

Given Input numbers are 27, 621, 669, 920

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

Divisors of 27

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

1, 3, 9, 27

Divisors of 621

List of positive integer divisors of 621 that divides 621 without a remainder.

1, 3, 9, 23, 27, 69, 207, 621

Divisors of 669

List of positive integer divisors of 669 that divides 669 without a remainder.

1, 3, 223, 669

Divisors of 920

List of positive integer divisors of 920 that divides 920 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

Greatest Common Divisior

We found the divisors of 27, 621, 669, 920 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 27, 621, 669, 920 is 1.

Therefore, GCD of numbers 27, 621, 669, 920 is 1

Given Input Data is 27, 621, 669, 920

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

Prime Factorization of 27 is 3 x 3 x 3

Prime Factorization of 621 is 3 x 3 x 3 x 23

Prime Factorization of 669 is 3 x 223

Prime Factorization of 920 is 2 x 2 x 2 x 5 x 23

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(27, 621) = 621

GCD(27, 621) = ( 27 x 621 ) / 621

GCD(27, 621) = 16767 / 621

GCD(27, 621) = 27

Step2:

Here we consider the GCD from the above i.e. 27 as first number and the next as 669

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

LCM(27, 669) = 6021

GCD(27, 669) = ( 27 x 669 ) / 6021

GCD(27, 669) = 18063 / 6021

GCD(27, 669) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 920

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

LCM(3, 920) = 2760

GCD(3, 920) = ( 3 x 920 ) / 2760

GCD(3, 920) = 2760 / 2760

GCD(3, 920) = 1

GCD of 27, 621, 669, 920 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 89, 936, 193, 114
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• GCD of 93, 251, 435, 736
• GCD of 86, 878, 154, 599
• GCD of 80, 952, 223, 818

1. What is the GCD of 27, 621, 669, 920?

GCD of 27, 621, 669, 920 is 1

2. Where do I get the detailed procedure to find GCD of 27, 621, 669, 920?

You can find a detailed procedure to find GCD of 27, 621, 669, 920 on our page.

3. How to find GCD of 27, 621, 669, 920 on a calculator?

You can find the GCD of 27, 621, 669, 920 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.