GCD of 173, 389, 28, 388 Calculator

Given Input numbers are 173, 389, 28, 388

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

Divisors of 173

List of positive integer divisors of 173 that divides 173 without a remainder.

1, 173

Divisors of 389

List of positive integer divisors of 389 that divides 389 without a remainder.

1, 389

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 173, 389, 28, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 173, 389, 28, 388 is 1.

Therefore, GCD of numbers 173, 389, 28, 388 is 1

Given Input Data is 173, 389, 28, 388

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

Prime Factorization of 173 is 173

Prime Factorization of 389 is 389

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 388 is 2 x 2 x 97

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(173, 389) = 67297

GCD(173, 389) = ( 173 x 389 ) / 67297

GCD(173, 389) = 67297 / 67297

GCD(173, 389) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 173, 389, 28, 388 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 351, 370, 68, 280
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• GCD of 481, 628, 69, 900

1. What is the GCD of 173, 389, 28, 388?

GCD of 173, 389, 28, 388 is 1

2. Where do I get the detailed procedure to find GCD of 173, 389, 28, 388?

You can find a detailed procedure to find GCD of 173, 389, 28, 388 on our page.

3. How to find GCD of 173, 389, 28, 388 on a calculator?

You can find the GCD of 173, 389, 28, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.