GCD of 639, 845, 600, 842 Calculator

Given Input numbers are 639, 845, 600, 842

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

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 845

List of positive integer divisors of 845 that divides 845 without a remainder.

1, 5, 13, 65, 169, 845

Divisors of 600

List of positive integer divisors of 600 that divides 600 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 150, 200, 300, 600

Divisors of 842

List of positive integer divisors of 842 that divides 842 without a remainder.

1, 2, 421, 842

Greatest Common Divisior

We found the divisors of 639, 845, 600, 842 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 845, 600, 842 is 1.

Therefore, GCD of numbers 639, 845, 600, 842 is 1

Given Input Data is 639, 845, 600, 842

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 845 is 5 x 13 x 13

Prime Factorization of 600 is 2 x 2 x 2 x 3 x 5 x 5

Prime Factorization of 842 is 2 x 421

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(639, 845) = 539955

GCD(639, 845) = ( 639 x 845 ) / 539955

GCD(639, 845) = 539955 / 539955

GCD(639, 845) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 600

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

LCM(1, 600) = 600

GCD(1, 600) = ( 1 x 600 ) / 600

GCD(1, 600) = 600 / 600

GCD(1, 600) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 842

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

LCM(1, 842) = 842

GCD(1, 842) = ( 1 x 842 ) / 842

GCD(1, 842) = 842 / 842

GCD(1, 842) = 1

GCD of 639, 845, 600, 842 is 1

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1. What is the GCD of 639, 845, 600, 842?

GCD of 639, 845, 600, 842 is 1

2. Where do I get the detailed procedure to find GCD of 639, 845, 600, 842?

You can find a detailed procedure to find GCD of 639, 845, 600, 842 on our page.

3. How to find GCD of 639, 845, 600, 842 on a calculator?

You can find the GCD of 639, 845, 600, 842 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.