GCD of 842, 424, 644 Calculator

Given Input numbers are 842, 424, 644

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

Divisors of 842

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

1, 2, 421, 842

Divisors of 424

List of positive integer divisors of 424 that divides 424 without a remainder.

1, 2, 4, 8, 53, 106, 212, 424

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Greatest Common Divisior

We found the divisors of 842, 424, 644 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 842, 424, 644 is 2.

Therefore, GCD of numbers 842, 424, 644 is 2

Given Input Data is 842, 424, 644

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

Prime Factorization of 842 is 2 x 421

Prime Factorization of 424 is 2 x 2 x 2 x 53

Prime Factorization of 644 is 2 x 2 x 7 x 23

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

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(842, 424) = 178504

GCD(842, 424) = ( 842 x 424 ) / 178504

GCD(842, 424) = 357008 / 178504

GCD(842, 424) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 644

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

LCM(2, 644) = 644

GCD(2, 644) = ( 2 x 644 ) / 644

GCD(2, 644) = 1288 / 644

GCD(2, 644) = 2

GCD of 842, 424, 644 is 2

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1. What is the GCD of 842, 424, 644?

GCD of 842, 424, 644 is 2

2. Where do I get the detailed procedure to find GCD of 842, 424, 644?

You can find a detailed procedure to find GCD of 842, 424, 644 on our page.

3. How to find GCD of 842, 424, 644 on a calculator?

You can find the GCD of 842, 424, 644 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.