GCD of 858, 920, 87, 669 Calculator

Given Input numbers are 858, 920, 87, 669

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 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

Divisors of 87

List of positive integer divisors of 87 that divides 87 without a remainder.

1, 3, 29, 87

Divisors of 669

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

1, 3, 223, 669

Greatest Common Divisior

We found the divisors of 858, 920, 87, 669 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 858, 920, 87, 669 is 1.

Therefore, GCD of numbers 858, 920, 87, 669 is 1

Given Input Data is 858, 920, 87, 669

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 920 is 2 x 2 x 2 x 5 x 23

Prime Factorization of 87 is 3 x 29

Prime Factorization of 669 is 3 x 223

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, 920) = 394680

GCD(858, 920) = ( 858 x 920 ) / 394680

GCD(858, 920) = 789360 / 394680

GCD(858, 920) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 87

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

LCM(2, 87) = 174

GCD(2, 87) = ( 2 x 87 ) / 174

GCD(2, 87) = 174 / 174

GCD(2, 87) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 669

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

LCM(1, 669) = 669

GCD(1, 669) = ( 1 x 669 ) / 669

GCD(1, 669) = 669 / 669

GCD(1, 669) = 1

GCD of 858, 920, 87, 669 is 1

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1. What is the GCD of 858, 920, 87, 669?

GCD of 858, 920, 87, 669 is 1

2. Where do I get the detailed procedure to find GCD of 858, 920, 87, 669?

You can find a detailed procedure to find GCD of 858, 920, 87, 669 on our page.

3. How to find GCD of 858, 920, 87, 669 on a calculator?

You can find the GCD of 858, 920, 87, 669 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.