GCD of 638, 915, 681 Calculator

Given Input numbers are 638, 915, 681

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 915

List of positive integer divisors of 915 that divides 915 without a remainder.

1, 3, 5, 15, 61, 183, 305, 915

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Greatest Common Divisior

We found the divisors of 638, 915, 681 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 638, 915, 681 is 1.

Therefore, GCD of numbers 638, 915, 681 is 1

Given Input Data is 638, 915, 681

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 915 is 3 x 5 x 61

Prime Factorization of 681 is 3 x 227

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(638, 915) = 583770

GCD(638, 915) = ( 638 x 915 ) / 583770

GCD(638, 915) = 583770 / 583770

GCD(638, 915) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

GCD of 638, 915, 681 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 111, 580, 779
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1. What is the GCD of 638, 915, 681?

GCD of 638, 915, 681 is 1

2. Where do I get the detailed procedure to find GCD of 638, 915, 681?

You can find a detailed procedure to find GCD of 638, 915, 681 on our page.

3. How to find GCD of 638, 915, 681 on a calculator?

You can find the GCD of 638, 915, 681 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.