GCD of 861, 611, 563, 813 Calculator

Given Input numbers are 861, 611, 563, 813

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

Divisors of 861

List of positive integer divisors of 861 that divides 861 without a remainder.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 611

List of positive integer divisors of 611 that divides 611 without a remainder.

1, 13, 47, 611

Divisors of 563

List of positive integer divisors of 563 that divides 563 without a remainder.

1, 563

Divisors of 813

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

1, 3, 271, 813

Greatest Common Divisior

We found the divisors of 861, 611, 563, 813 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 861, 611, 563, 813 is 1.

Therefore, GCD of numbers 861, 611, 563, 813 is 1

Given Input Data is 861, 611, 563, 813

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

Prime Factorization of 861 is 3 x 7 x 41

Prime Factorization of 611 is 13 x 47

Prime Factorization of 563 is 563

Prime Factorization of 813 is 3 x 271

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(861, 611) = 526071

GCD(861, 611) = ( 861 x 611 ) / 526071

GCD(861, 611) = 526071 / 526071

GCD(861, 611) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 563

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

LCM(1, 563) = 563

GCD(1, 563) = ( 1 x 563 ) / 563

GCD(1, 563) = 563 / 563

GCD(1, 563) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 813

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

LCM(1, 813) = 813

GCD(1, 813) = ( 1 x 813 ) / 813

GCD(1, 813) = 813 / 813

GCD(1, 813) = 1

GCD of 861, 611, 563, 813 is 1

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1. What is the GCD of 861, 611, 563, 813?

GCD of 861, 611, 563, 813 is 1

2. Where do I get the detailed procedure to find GCD of 861, 611, 563, 813?

You can find a detailed procedure to find GCD of 861, 611, 563, 813 on our page.

3. How to find GCD of 861, 611, 563, 813 on a calculator?

You can find the GCD of 861, 611, 563, 813 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.