GCD of 858, 720, 20, 837 Calculator

Given Input numbers are 858, 720, 20, 837

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

Divisors of 858

List of positive integer divisors of 858 that divides 858 without a remainder.

1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

Divisors of 720

List of positive integer divisors of 720 that divides 720 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Divisors of 20

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

1, 2, 4, 5, 10, 20

Divisors of 837

List of positive integer divisors of 837 that divides 837 without a remainder.

1, 3, 9, 27, 31, 93, 279, 837

Greatest Common Divisior

We found the divisors of 858, 720, 20, 837 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 858, 720, 20, 837 is 1.

Therefore, GCD of numbers 858, 720, 20, 837 is 1

Given Input Data is 858, 720, 20, 837

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

Prime Factorization of 858 is 2 x 3 x 11 x 13

Prime Factorization of 720 is 2 x 2 x 2 x 2 x 3 x 3 x 5

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 837 is 3 x 3 x 3 x 31

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(858, 720) = 102960

GCD(858, 720) = ( 858 x 720 ) / 102960

GCD(858, 720) = 617760 / 102960

GCD(858, 720) = 6

Step2:

Here we consider the GCD from the above i.e. 6 as first number and the next as 20

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

LCM(6, 20) = 60

GCD(6, 20) = ( 6 x 20 ) / 60

GCD(6, 20) = 120 / 60

GCD(6, 20) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 837

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

LCM(2, 837) = 1674

GCD(2, 837) = ( 2 x 837 ) / 1674

GCD(2, 837) = 1674 / 1674

GCD(2, 837) = 1

GCD of 858, 720, 20, 837 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 627, 389, 94, 968
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• GCD of 876, 226, 97, 503

1. What is the GCD of 858, 720, 20, 837?

GCD of 858, 720, 20, 837 is 1

2. Where do I get the detailed procedure to find GCD of 858, 720, 20, 837?

You can find a detailed procedure to find GCD of 858, 720, 20, 837 on our page.

3. How to find GCD of 858, 720, 20, 837 on a calculator?

You can find the GCD of 858, 720, 20, 837 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.