GCD of 558, 423, 781 Calculator

Given Input numbers are 558, 423, 781

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

Divisors of 558

List of positive integer divisors of 558 that divides 558 without a remainder.

1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

Divisors of 423

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

1, 3, 9, 47, 141, 423

Divisors of 781

List of positive integer divisors of 781 that divides 781 without a remainder.

1, 11, 71, 781

Greatest Common Divisior

We found the divisors of 558, 423, 781 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 558, 423, 781 is 1.

Therefore, GCD of numbers 558, 423, 781 is 1

Given Input Data is 558, 423, 781

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

Prime Factorization of 558 is 2 x 3 x 3 x 31

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 781 is 11 x 71

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(558, 423) = 26226

GCD(558, 423) = ( 558 x 423 ) / 26226

GCD(558, 423) = 236034 / 26226

GCD(558, 423) = 9

Step2:

Here we consider the GCD from the above i.e. 9 as first number and the next as 781

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

LCM(9, 781) = 7029

GCD(9, 781) = ( 9 x 781 ) / 7029

GCD(9, 781) = 7029 / 7029

GCD(9, 781) = 1

GCD of 558, 423, 781 is 1

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1. What is the GCD of 558, 423, 781?

GCD of 558, 423, 781 is 1

2. Where do I get the detailed procedure to find GCD of 558, 423, 781?

You can find a detailed procedure to find GCD of 558, 423, 781 on our page.

3. How to find GCD of 558, 423, 781 on a calculator?

You can find the GCD of 558, 423, 781 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.