GCD of 638, 520, 80, 324 Calculator

Given Input numbers are 638, 520, 80, 324

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

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 520

List of positive integer divisors of 520 that divides 520 without a remainder.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520

Divisors of 80

List of positive integer divisors of 80 that divides 80 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Divisors of 324

List of positive integer divisors of 324 that divides 324 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324

Greatest Common Divisior

We found the divisors of 638, 520, 80, 324 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 638, 520, 80, 324 is 2.

Therefore, GCD of numbers 638, 520, 80, 324 is 2

Given Input Data is 638, 520, 80, 324

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

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 520 is 2 x 2 x 2 x 5 x 13

Prime Factorization of 80 is 2 x 2 x 2 x 2 x 5

Prime Factorization of 324 is 2 x 2 x 3 x 3 x 3 x 3

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(638, 520) = 165880

GCD(638, 520) = ( 638 x 520 ) / 165880

GCD(638, 520) = 331760 / 165880

GCD(638, 520) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 80

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

LCM(2, 80) = 80

GCD(2, 80) = ( 2 x 80 ) / 80

GCD(2, 80) = 160 / 80

GCD(2, 80) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 324

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

LCM(2, 324) = 324

GCD(2, 324) = ( 2 x 324 ) / 324

GCD(2, 324) = 648 / 324

GCD(2, 324) = 2

GCD of 638, 520, 80, 324 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 959, 239, 81, 672
• GCD of 108, 260, 21, 674
• GCD of 779, 476, 19, 621
• GCD of 671, 342, 53, 795
• GCD of 756, 311, 76, 156

1. What is the GCD of 638, 520, 80, 324?

GCD of 638, 520, 80, 324 is 2

2. Where do I get the detailed procedure to find GCD of 638, 520, 80, 324?

You can find a detailed procedure to find GCD of 638, 520, 80, 324 on our page.

3. How to find GCD of 638, 520, 80, 324 on a calculator?

You can find the GCD of 638, 520, 80, 324 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.