GCD of 530, 398, 79, 668 Calculator

Given Input numbers are 530, 398, 79, 668

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

Divisors of 530

List of positive integer divisors of 530 that divides 530 without a remainder.

1, 2, 5, 10, 53, 106, 265, 530

Divisors of 398

List of positive integer divisors of 398 that divides 398 without a remainder.

1, 2, 199, 398

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 668

List of positive integer divisors of 668 that divides 668 without a remainder.

1, 2, 4, 167, 334, 668

Greatest Common Divisior

We found the divisors of 530, 398, 79, 668 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 530, 398, 79, 668 is 1.

Therefore, GCD of numbers 530, 398, 79, 668 is 1

Given Input Data is 530, 398, 79, 668

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

Prime Factorization of 530 is 2 x 5 x 53

Prime Factorization of 398 is 2 x 199

Prime Factorization of 79 is 79

Prime Factorization of 668 is 2 x 2 x 167

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(530, 398) = 105470

GCD(530, 398) = ( 530 x 398 ) / 105470

GCD(530, 398) = 210940 / 105470

GCD(530, 398) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 79

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

LCM(2, 79) = 158

GCD(2, 79) = ( 2 x 79 ) / 158

GCD(2, 79) = 158 / 158

GCD(2, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 668

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

LCM(1, 668) = 668

GCD(1, 668) = ( 1 x 668 ) / 668

GCD(1, 668) = 668 / 668

GCD(1, 668) = 1

GCD of 530, 398, 79, 668 is 1

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1. What is the GCD of 530, 398, 79, 668?

GCD of 530, 398, 79, 668 is 1

2. Where do I get the detailed procedure to find GCD of 530, 398, 79, 668?

You can find a detailed procedure to find GCD of 530, 398, 79, 668 on our page.

3. How to find GCD of 530, 398, 79, 668 on a calculator?

You can find the GCD of 530, 398, 79, 668 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.