GCD of 221, 266, 810, 561 Calculator

Given Input numbers are 221, 266, 810, 561

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

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 266

List of positive integer divisors of 266 that divides 266 without a remainder.

1, 2, 7, 14, 19, 38, 133, 266

Divisors of 810

List of positive integer divisors of 810 that divides 810 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

Divisors of 561

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

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

Greatest Common Divisior

We found the divisors of 221, 266, 810, 561 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 266, 810, 561 is 1.

Therefore, GCD of numbers 221, 266, 810, 561 is 1

Given Input Data is 221, 266, 810, 561

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 266 is 2 x 7 x 19

Prime Factorization of 810 is 2 x 3 x 3 x 3 x 3 x 5

Prime Factorization of 561 is 3 x 11 x 17

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(221, 266) = 58786

GCD(221, 266) = ( 221 x 266 ) / 58786

GCD(221, 266) = 58786 / 58786

GCD(221, 266) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 810

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

LCM(1, 810) = 810

GCD(1, 810) = ( 1 x 810 ) / 810

GCD(1, 810) = 810 / 810

GCD(1, 810) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 561

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

LCM(1, 561) = 561

GCD(1, 561) = ( 1 x 561 ) / 561

GCD(1, 561) = 561 / 561

GCD(1, 561) = 1

GCD of 221, 266, 810, 561 is 1

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1. What is the GCD of 221, 266, 810, 561?

GCD of 221, 266, 810, 561 is 1

2. Where do I get the detailed procedure to find GCD of 221, 266, 810, 561?

You can find a detailed procedure to find GCD of 221, 266, 810, 561 on our page.

3. How to find GCD of 221, 266, 810, 561 on a calculator?

You can find the GCD of 221, 266, 810, 561 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.