GCD of 243, 356, 561 Calculator

Given Input numbers are 243, 356, 561

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

Divisors of 243

List of positive integer divisors of 243 that divides 243 without a remainder.

1, 3, 9, 27, 81, 243

Divisors of 356

List of positive integer divisors of 356 that divides 356 without a remainder.

1, 2, 4, 89, 178, 356

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 243, 356, 561 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 243, 356, 561 is 1.

Therefore, GCD of numbers 243, 356, 561 is 1

Given Input Data is 243, 356, 561

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

Prime Factorization of 243 is 3 x 3 x 3 x 3 x 3

Prime Factorization of 356 is 2 x 2 x 89

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(243, 356) = 86508

GCD(243, 356) = ( 243 x 356 ) / 86508

GCD(243, 356) = 86508 / 86508

GCD(243, 356) = 1

Step2:

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 243, 356, 561 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 929, 909, 648
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• GCD of 151, 361, 290
• GCD of 557, 797, 668
• GCD of 845, 795, 477

1. What is the GCD of 243, 356, 561?

GCD of 243, 356, 561 is 1

2. Where do I get the detailed procedure to find GCD of 243, 356, 561?

You can find a detailed procedure to find GCD of 243, 356, 561 on our page.

3. How to find GCD of 243, 356, 561 on a calculator?

You can find the GCD of 243, 356, 561 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.