GCD of 558, 447, 649, 399 Calculator

Given Input numbers are 558, 447, 649, 399

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 447

List of positive integer divisors of 447 that divides 447 without a remainder.

1, 3, 149, 447

Divisors of 649

List of positive integer divisors of 649 that divides 649 without a remainder.

1, 11, 59, 649

Divisors of 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Greatest Common Divisior

We found the divisors of 558, 447, 649, 399 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 558, 447, 649, 399 is 1.

Therefore, GCD of numbers 558, 447, 649, 399 is 1

Given Input Data is 558, 447, 649, 399

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 447 is 3 x 149

Prime Factorization of 649 is 11 x 59

Prime Factorization of 399 is 3 x 7 x 19

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, 447) = 83142

GCD(558, 447) = ( 558 x 447 ) / 83142

GCD(558, 447) = 249426 / 83142

GCD(558, 447) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 649

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

LCM(3, 649) = 1947

GCD(3, 649) = ( 3 x 649 ) / 1947

GCD(3, 649) = 1947 / 1947

GCD(3, 649) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 399

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

LCM(1, 399) = 399

GCD(1, 399) = ( 1 x 399 ) / 399

GCD(1, 399) = 399 / 399

GCD(1, 399) = 1

GCD of 558, 447, 649, 399 is 1

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• GCD of 676, 578, 265, 917
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• GCD of 349, 949, 219, 174

1. What is the GCD of 558, 447, 649, 399?

GCD of 558, 447, 649, 399 is 1

2. Where do I get the detailed procedure to find GCD of 558, 447, 649, 399?

You can find a detailed procedure to find GCD of 558, 447, 649, 399 on our page.

3. How to find GCD of 558, 447, 649, 399 on a calculator?

You can find the GCD of 558, 447, 649, 399 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.