GCD of 639, 644, 150, 172 Calculator

Given Input numbers are 639, 644, 150, 172

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 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 150

List of positive integer divisors of 150 that divides 150 without a remainder.

1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150

Divisors of 172

List of positive integer divisors of 172 that divides 172 without a remainder.

1, 2, 4, 43, 86, 172

Greatest Common Divisior

We found the divisors of 639, 644, 150, 172 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 644, 150, 172 is 1.

Therefore, GCD of numbers 639, 644, 150, 172 is 1

Given Input Data is 639, 644, 150, 172

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 644 is 2 x 2 x 7 x 23

Prime Factorization of 150 is 2 x 3 x 5 x 5

Prime Factorization of 172 is 2 x 2 x 43

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, 644) = 411516

GCD(639, 644) = ( 639 x 644 ) / 411516

GCD(639, 644) = 411516 / 411516

GCD(639, 644) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 150

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

LCM(1, 150) = 150

GCD(1, 150) = ( 1 x 150 ) / 150

GCD(1, 150) = 150 / 150

GCD(1, 150) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 172

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

LCM(1, 172) = 172

GCD(1, 172) = ( 1 x 172 ) / 172

GCD(1, 172) = 172 / 172

GCD(1, 172) = 1

GCD of 639, 644, 150, 172 is 1

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• GCD of 406, 573, 799, 107
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1. What is the GCD of 639, 644, 150, 172?

GCD of 639, 644, 150, 172 is 1

2. Where do I get the detailed procedure to find GCD of 639, 644, 150, 172?

You can find a detailed procedure to find GCD of 639, 644, 150, 172 on our page.

3. How to find GCD of 639, 644, 150, 172 on a calculator?

You can find the GCD of 639, 644, 150, 172 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.