GCD of 389, 147, 18, 556 Calculator

Given Input numbers are 389, 147, 18, 556

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 147

List of positive integer divisors of 147 that divides 147 without a remainder.

1, 3, 7, 21, 49, 147

Divisors of 18

List of positive integer divisors of 18 that divides 18 without a remainder.

1, 2, 3, 6, 9, 18

Divisors of 556

List of positive integer divisors of 556 that divides 556 without a remainder.

1, 2, 4, 139, 278, 556

Greatest Common Divisior

We found the divisors of 389, 147, 18, 556 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 389, 147, 18, 556 is 1.

Therefore, GCD of numbers 389, 147, 18, 556 is 1

Given Input Data is 389, 147, 18, 556

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

Prime Factorization of 389 is 389

Prime Factorization of 147 is 3 x 7 x 7

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 556 is 2 x 2 x 139

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, 147) = 57183

GCD(389, 147) = ( 389 x 147 ) / 57183

GCD(389, 147) = 57183 / 57183

GCD(389, 147) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 18

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

LCM(1, 18) = 18

GCD(1, 18) = ( 1 x 18 ) / 18

GCD(1, 18) = 18 / 18

GCD(1, 18) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 556

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

LCM(1, 556) = 556

GCD(1, 556) = ( 1 x 556 ) / 556

GCD(1, 556) = 556 / 556

GCD(1, 556) = 1

GCD of 389, 147, 18, 556 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 486, 520, 26, 869
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• GCD of 475, 584, 57, 799
• GCD of 276, 257, 54, 911

1. What is the GCD of 389, 147, 18, 556?

GCD of 389, 147, 18, 556 is 1

2. Where do I get the detailed procedure to find GCD of 389, 147, 18, 556?

You can find a detailed procedure to find GCD of 389, 147, 18, 556 on our page.

3. How to find GCD of 389, 147, 18, 556 on a calculator?

You can find the GCD of 389, 147, 18, 556 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.