GCD of 557, 666, 23, 421 Calculator

Given Input numbers are 557, 666, 23, 421

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

Divisors of 557

List of positive integer divisors of 557 that divides 557 without a remainder.

1, 557

Divisors of 666

List of positive integer divisors of 666 that divides 666 without a remainder.

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

Divisors of 23

List of positive integer divisors of 23 that divides 23 without a remainder.

1, 23

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Greatest Common Divisior

We found the divisors of 557, 666, 23, 421 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 557, 666, 23, 421 is 1.

Therefore, GCD of numbers 557, 666, 23, 421 is 1

Given Input Data is 557, 666, 23, 421

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

Prime Factorization of 557 is 557

Prime Factorization of 666 is 2 x 3 x 3 x 37

Prime Factorization of 23 is 23

Prime Factorization of 421 is 421

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(557, 666) = 370962

GCD(557, 666) = ( 557 x 666 ) / 370962

GCD(557, 666) = 370962 / 370962

GCD(557, 666) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 23

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

LCM(1, 23) = 23

GCD(1, 23) = ( 1 x 23 ) / 23

GCD(1, 23) = 23 / 23

GCD(1, 23) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 421

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

LCM(1, 421) = 421

GCD(1, 421) = ( 1 x 421 ) / 421

GCD(1, 421) = 421 / 421

GCD(1, 421) = 1

GCD of 557, 666, 23, 421 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 953, 192, 16, 555
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• GCD of 763, 645, 25, 745

1. What is the GCD of 557, 666, 23, 421?

GCD of 557, 666, 23, 421 is 1

2. Where do I get the detailed procedure to find GCD of 557, 666, 23, 421?

You can find a detailed procedure to find GCD of 557, 666, 23, 421 on our page.

3. How to find GCD of 557, 666, 23, 421 on a calculator?

You can find the GCD of 557, 666, 23, 421 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.