GCD of 389, 721, 81, 468 Calculator

Given Input numbers are 389, 721, 81, 468

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

Divisors of 389

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

1, 389

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 468

List of positive integer divisors of 468 that divides 468 without a remainder.

1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468

Greatest Common Divisior

We found the divisors of 389, 721, 81, 468 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 389, 721, 81, 468 is 1.

Therefore, GCD of numbers 389, 721, 81, 468 is 1

Given Input Data is 389, 721, 81, 468

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

Prime Factorization of 389 is 389

Prime Factorization of 721 is 7 x 103

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 468 is 2 x 2 x 3 x 3 x 13

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(389, 721) = 280469

GCD(389, 721) = ( 389 x 721 ) / 280469

GCD(389, 721) = 280469 / 280469

GCD(389, 721) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 468

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

LCM(1, 468) = 468

GCD(1, 468) = ( 1 x 468 ) / 468

GCD(1, 468) = 468 / 468

GCD(1, 468) = 1

GCD of 389, 721, 81, 468 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 456, 562, 35, 907
• GCD of 729, 910, 98, 151
• GCD of 407, 573, 48, 857
• GCD of 190, 717, 20, 225
• GCD of 138, 970, 79, 315

1. What is the GCD of 389, 721, 81, 468?

GCD of 389, 721, 81, 468 is 1

2. Where do I get the detailed procedure to find GCD of 389, 721, 81, 468?

You can find a detailed procedure to find GCD of 389, 721, 81, 468 on our page.

3. How to find GCD of 389, 721, 81, 468 on a calculator?

You can find the GCD of 389, 721, 81, 468 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.