GCD of 423, 555, 556 Calculator

Given Input numbers are 423, 555, 556

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

Divisors of 423

List of positive integer divisors of 423 that divides 423 without a remainder.

1, 3, 9, 47, 141, 423

Divisors of 555

List of positive integer divisors of 555 that divides 555 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555

Divisors of 556

List of positive integer divisors of 556 that divides 556 without a remainder.

1, 2, 4, 139, 278, 556

Greatest Common Divisior

We found the divisors of 423, 555, 556 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 423, 555, 556 is 1.

Therefore, GCD of numbers 423, 555, 556 is 1

Given Input Data is 423, 555, 556

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

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 555 is 3 x 5 x 37

Prime Factorization of 556 is 2 x 2 x 139

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(423, 555) = 78255

GCD(423, 555) = ( 423 x 555 ) / 78255

GCD(423, 555) = 234765 / 78255

GCD(423, 555) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 556

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

LCM(3, 556) = 1668

GCD(3, 556) = ( 3 x 556 ) / 1668

GCD(3, 556) = 1668 / 1668

GCD(3, 556) = 1

GCD of 423, 555, 556 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 773, 318, 968
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• GCD of 618, 550, 935
• GCD of 996, 418, 181
• GCD of 882, 127, 601

1. What is the GCD of 423, 555, 556?

GCD of 423, 555, 556 is 1

2. Where do I get the detailed procedure to find GCD of 423, 555, 556?

You can find a detailed procedure to find GCD of 423, 555, 556 on our page.

3. How to find GCD of 423, 555, 556 on a calculator?

You can find the GCD of 423, 555, 556 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.