GCD of 610, 638, 28, 979 Calculator

Given Input numbers are 610, 638, 28, 979

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

Divisors of 610

List of positive integer divisors of 610 that divides 610 without a remainder.

1, 2, 5, 10, 61, 122, 305, 610

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 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 979

List of positive integer divisors of 979 that divides 979 without a remainder.

1, 11, 89, 979

Greatest Common Divisior

We found the divisors of 610, 638, 28, 979 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 610, 638, 28, 979 is 1.

Therefore, GCD of numbers 610, 638, 28, 979 is 1

Given Input Data is 610, 638, 28, 979

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

Prime Factorization of 610 is 2 x 5 x 61

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 979 is 11 x 89

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(610, 638) = 194590

GCD(610, 638) = ( 610 x 638 ) / 194590

GCD(610, 638) = 389180 / 194590

GCD(610, 638) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 28

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

LCM(2, 28) = 28

GCD(2, 28) = ( 2 x 28 ) / 28

GCD(2, 28) = 56 / 28

GCD(2, 28) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 979

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

LCM(2, 979) = 1958

GCD(2, 979) = ( 2 x 979 ) / 1958

GCD(2, 979) = 1958 / 1958

GCD(2, 979) = 1

GCD of 610, 638, 28, 979 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 246, 809, 29, 148
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• GCD of 728, 938, 29, 557

1. What is the GCD of 610, 638, 28, 979?

GCD of 610, 638, 28, 979 is 1

2. Where do I get the detailed procedure to find GCD of 610, 638, 28, 979?

You can find a detailed procedure to find GCD of 610, 638, 28, 979 on our page.

3. How to find GCD of 610, 638, 28, 979 on a calculator?

You can find the GCD of 610, 638, 28, 979 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.