GCD of 329, 664, 55, 638 Calculator

Given Input numbers are 329, 664, 55, 638

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

Divisors of 329

List of positive integer divisors of 329 that divides 329 without a remainder.

1, 7, 47, 329

Divisors of 664

List of positive integer divisors of 664 that divides 664 without a remainder.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 55

List of positive integer divisors of 55 that divides 55 without a remainder.

1, 5, 11, 55

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 329, 664, 55, 638 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 329, 664, 55, 638 is 1.

Therefore, GCD of numbers 329, 664, 55, 638 is 1

Given Input Data is 329, 664, 55, 638

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

Prime Factorization of 329 is 7 x 47

Prime Factorization of 664 is 2 x 2 x 2 x 83

Prime Factorization of 55 is 5 x 11

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(329, 664) = 218456

GCD(329, 664) = ( 329 x 664 ) / 218456

GCD(329, 664) = 218456 / 218456

GCD(329, 664) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 55

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

LCM(1, 55) = 55

GCD(1, 55) = ( 1 x 55 ) / 55

GCD(1, 55) = 55 / 55

GCD(1, 55) = 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 329, 664, 55, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 337, 272, 13, 589
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• GCD of 957, 303, 56, 344
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• GCD of 286, 647, 33, 344

1. What is the GCD of 329, 664, 55, 638?

GCD of 329, 664, 55, 638 is 1

2. Where do I get the detailed procedure to find GCD of 329, 664, 55, 638?

You can find a detailed procedure to find GCD of 329, 664, 55, 638 on our page.

3. How to find GCD of 329, 664, 55, 638 on a calculator?

You can find the GCD of 329, 664, 55, 638 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.