GCD of 129, 173, 52, 645 Calculator

Given Input numbers are 129, 173, 52, 645

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

Divisors of 129

List of positive integer divisors of 129 that divides 129 without a remainder.

1, 3, 43, 129

Divisors of 173

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

1, 173

Divisors of 52

List of positive integer divisors of 52 that divides 52 without a remainder.

1, 2, 4, 13, 26, 52

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Greatest Common Divisior

We found the divisors of 129, 173, 52, 645 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 129, 173, 52, 645 is 1.

Therefore, GCD of numbers 129, 173, 52, 645 is 1

Given Input Data is 129, 173, 52, 645

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

Prime Factorization of 129 is 3 x 43

Prime Factorization of 173 is 173

Prime Factorization of 52 is 2 x 2 x 13

Prime Factorization of 645 is 3 x 5 x 43

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(129, 173) = 22317

GCD(129, 173) = ( 129 x 173 ) / 22317

GCD(129, 173) = 22317 / 22317

GCD(129, 173) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 52

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

LCM(1, 52) = 52

GCD(1, 52) = ( 1 x 52 ) / 52

GCD(1, 52) = 52 / 52

GCD(1, 52) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 645

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

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

GCD(1, 645) = 645 / 645

GCD(1, 645) = 1

GCD of 129, 173, 52, 645 is 1

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1. What is the GCD of 129, 173, 52, 645?

GCD of 129, 173, 52, 645 is 1

2. Where do I get the detailed procedure to find GCD of 129, 173, 52, 645?

You can find a detailed procedure to find GCD of 129, 173, 52, 645 on our page.

3. How to find GCD of 129, 173, 52, 645 on a calculator?

You can find the GCD of 129, 173, 52, 645 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.