GCD of 644, 213, 187 Calculator

Given Input numbers are 644, 213, 187

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

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

Divisors of 213

List of positive integer divisors of 213 that divides 213 without a remainder.

1, 3, 71, 213

Divisors of 187

List of positive integer divisors of 187 that divides 187 without a remainder.

1, 11, 17, 187

Greatest Common Divisior

We found the divisors of 644, 213, 187 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 213, 187 is 1.

Therefore, GCD of numbers 644, 213, 187 is 1

Given Input Data is 644, 213, 187

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

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

Prime Factorization of 213 is 3 x 71

Prime Factorization of 187 is 11 x 17

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(644, 213) = 137172

GCD(644, 213) = ( 644 x 213 ) / 137172

GCD(644, 213) = 137172 / 137172

GCD(644, 213) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 187

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

LCM(1, 187) = 187

GCD(1, 187) = ( 1 x 187 ) / 187

GCD(1, 187) = 187 / 187

GCD(1, 187) = 1

GCD of 644, 213, 187 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 579, 365, 733
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1. What is the GCD of 644, 213, 187?

GCD of 644, 213, 187 is 1

2. Where do I get the detailed procedure to find GCD of 644, 213, 187?

You can find a detailed procedure to find GCD of 644, 213, 187 on our page.

3. How to find GCD of 644, 213, 187 on a calculator?

You can find the GCD of 644, 213, 187 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.