GCD of 530, 457, 68, 638 Calculator

Given Input numbers are 530, 457, 68, 638

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 457

List of positive integer divisors of 457 that divides 457 without a remainder.

1, 457

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Greatest Common Divisior

We found the divisors of 530, 457, 68, 638 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 530, 457, 68, 638 is 1.

Therefore, GCD of numbers 530, 457, 68, 638 is 1

Given Input Data is 530, 457, 68, 638

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 457 is 457

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 638 is 2 x 11 x 29

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, 457) = 242210

GCD(530, 457) = ( 530 x 457 ) / 242210

GCD(530, 457) = 242210 / 242210

GCD(530, 457) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 68

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

LCM(1, 68) = 68

GCD(1, 68) = ( 1 x 68 ) / 68

GCD(1, 68) = 68 / 68

GCD(1, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 638

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

LCM(1, 638) = 638

GCD(1, 638) = ( 1 x 638 ) / 638

GCD(1, 638) = 638 / 638

GCD(1, 638) = 1

GCD of 530, 457, 68, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 341, 613, 21, 888
• GCD of 885, 669, 38, 323
• GCD of 289, 715, 93, 837
• GCD of 695, 600, 14, 893
• GCD of 983, 264, 70, 993

1. What is the GCD of 530, 457, 68, 638?

GCD of 530, 457, 68, 638 is 1

2. Where do I get the detailed procedure to find GCD of 530, 457, 68, 638?

You can find a detailed procedure to find GCD of 530, 457, 68, 638 on our page.

3. How to find GCD of 530, 457, 68, 638 on a calculator?

You can find the GCD of 530, 457, 68, 638 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.