GCD of 572, 858, 640, 665 Calculator

Given Input numbers are 572, 858, 640, 665

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

Divisors of 572

List of positive integer divisors of 572 that divides 572 without a remainder.

1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572

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 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

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Greatest Common Divisior

We found the divisors of 572, 858, 640, 665 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 572, 858, 640, 665 is 1.

Therefore, GCD of numbers 572, 858, 640, 665 is 1

Given Input Data is 572, 858, 640, 665

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

Prime Factorization of 572 is 2 x 2 x 11 x 13

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

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

Prime Factorization of 665 is 5 x 7 x 19

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(572, 858) = 1716

GCD(572, 858) = ( 572 x 858 ) / 1716

GCD(572, 858) = 490776 / 1716

GCD(572, 858) = 286

Step2:

Here we consider the GCD from the above i.e. 286 as first number and the next as 640

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

LCM(286, 640) = 91520

GCD(286, 640) = ( 286 x 640 ) / 91520

GCD(286, 640) = 183040 / 91520

GCD(286, 640) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 665

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

LCM(2, 665) = 1330

GCD(2, 665) = ( 2 x 665 ) / 1330

GCD(2, 665) = 1330 / 1330

GCD(2, 665) = 1

GCD of 572, 858, 640, 665 is 1

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1. What is the GCD of 572, 858, 640, 665?

GCD of 572, 858, 640, 665 is 1

2. Where do I get the detailed procedure to find GCD of 572, 858, 640, 665?

You can find a detailed procedure to find GCD of 572, 858, 640, 665 on our page.

3. How to find GCD of 572, 858, 640, 665 on a calculator?

You can find the GCD of 572, 858, 640, 665 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.