GCD of 637, 462, 13, 399 Calculator

Given Input numbers are 637, 462, 13, 399

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

Divisors of 637

List of positive integer divisors of 637 that divides 637 without a remainder.

1, 7, 13, 49, 91, 637

Divisors of 462

List of positive integer divisors of 462 that divides 462 without a remainder.

1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Greatest Common Divisior

We found the divisors of 637, 462, 13, 399 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 637, 462, 13, 399 is 1.

Therefore, GCD of numbers 637, 462, 13, 399 is 1

Given Input Data is 637, 462, 13, 399

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

Prime Factorization of 637 is 7 x 7 x 13

Prime Factorization of 462 is 2 x 3 x 7 x 11

Prime Factorization of 13 is 13

Prime Factorization of 399 is 3 x 7 x 19

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(637, 462) = 42042

GCD(637, 462) = ( 637 x 462 ) / 42042

GCD(637, 462) = 294294 / 42042

GCD(637, 462) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 13

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

LCM(7, 13) = 91

GCD(7, 13) = ( 7 x 13 ) / 91

GCD(7, 13) = 91 / 91

GCD(7, 13) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 399

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

LCM(1, 399) = 399

GCD(1, 399) = ( 1 x 399 ) / 399

GCD(1, 399) = 399 / 399

GCD(1, 399) = 1

GCD of 637, 462, 13, 399 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 794, 523, 19, 928
• GCD of 144, 353, 38, 956
• GCD of 603, 273, 92, 905
• GCD of 945, 218, 73, 112
• GCD of 561, 336, 12, 959

1. What is the GCD of 637, 462, 13, 399?

GCD of 637, 462, 13, 399 is 1

2. Where do I get the detailed procedure to find GCD of 637, 462, 13, 399?

You can find a detailed procedure to find GCD of 637, 462, 13, 399 on our page.

3. How to find GCD of 637, 462, 13, 399 on a calculator?

You can find the GCD of 637, 462, 13, 399 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.