GCD of 561, 813, 76, 939 Calculator

Given Input numbers are 561, 813, 76, 939

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

Divisors of 561

List of positive integer divisors of 561 that divides 561 without a remainder.

1, 3, 11, 17, 33, 51, 187, 561

Divisors of 813

List of positive integer divisors of 813 that divides 813 without a remainder.

1, 3, 271, 813

Divisors of 76

List of positive integer divisors of 76 that divides 76 without a remainder.

1, 2, 4, 19, 38, 76

Divisors of 939

List of positive integer divisors of 939 that divides 939 without a remainder.

1, 3, 313, 939

Greatest Common Divisior

We found the divisors of 561, 813, 76, 939 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 561, 813, 76, 939 is 1.

Therefore, GCD of numbers 561, 813, 76, 939 is 1

Given Input Data is 561, 813, 76, 939

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

Prime Factorization of 561 is 3 x 11 x 17

Prime Factorization of 813 is 3 x 271

Prime Factorization of 76 is 2 x 2 x 19

Prime Factorization of 939 is 3 x 313

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(561, 813) = 152031

GCD(561, 813) = ( 561 x 813 ) / 152031

GCD(561, 813) = 456093 / 152031

GCD(561, 813) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 76

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

LCM(3, 76) = 228

GCD(3, 76) = ( 3 x 76 ) / 228

GCD(3, 76) = 228 / 228

GCD(3, 76) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 939

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

LCM(1, 939) = 939

GCD(1, 939) = ( 1 x 939 ) / 939

GCD(1, 939) = 939 / 939

GCD(1, 939) = 1

GCD of 561, 813, 76, 939 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 161, 404, 22, 537
• GCD of 316, 655, 69, 727
• GCD of 560, 474, 40, 304
• GCD of 378, 599, 58, 483
• GCD of 188, 364, 63, 108

1. What is the GCD of 561, 813, 76, 939?

GCD of 561, 813, 76, 939 is 1

2. Where do I get the detailed procedure to find GCD of 561, 813, 76, 939?

You can find a detailed procedure to find GCD of 561, 813, 76, 939 on our page.

3. How to find GCD of 561, 813, 76, 939 on a calculator?

You can find the GCD of 561, 813, 76, 939 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.