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GCD of 195, 645, 321 Calculator

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Online GCD Calculator is useful to find the GCD of 195, 645, 321 quickly. Get the easiest ways to solve the greatest common divisor of 195, 645, 321 i.e 3 in different methods as follows.

GCD of

How to Find GCD of Numbers 195, 645, 321 with Factoring?

Given Input numbers are 195, 645, 321

In the factoring method, we have to find the divisors of all numbers

Divisors of 195 :

The positive integer divisors of 195 that completely divides 195 are.

1, 3, 5, 13, 15, 39, 65, 195

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

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

Divisors of 321 :

The positive integer divisors of 321 that completely divides 321 are.

1, 3, 107, 321


GCD of numbers is the greatest common divisor

So, the GCD (195, 645, 321) = 3.

Find GCD of 195, 645, 321 using Prime Factorization

Given numbers are 195, 645, 321

The list of prime factors of all numbers are

Prime factors of 195 are 3 x 5 x 13

Prime factors of 645 are 3 x 5 x 43

Prime factors of 321 are 3 x 107

The highest common occurrence is 31

Therefore, GCD of 195, 645, 321 is 3.

Steps to Calculate GCD of 195, 645, 321 using LCM Formula

Given numbers are 195, 645, 321

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(195, 645) = 8385

GCD(195, 645) = ( 195 x 645 ) / 8385

= 195 / 645

= 195


Step2:

LCM(15, 321) = 1605

GCD(15, 321) = ( 15 x 321 ) / 1605

= 15 / 321

= 15


So, Greatest Common Divisor of 195, 645, 321 is 3

GCD of Numbers Calculation Examples

Greatest Common Divisor of 195, 645, 321

Given numbers are 195, 645, 321
The greatest common divisor of numbers 195, 645, 321 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 195, 645, 321 is 3.

FAQs on GCD of 195, 645, 321 Calculator

1. What is the GCD of 195, 645, 321?

GCD of given numbers 195, 645, 321 is 3


2. How to calculate the greatest common divisor of 195, 645, 321?

We can find the highest common divisor of 195, 645, 321 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 195, 645, 321 i.e 3.


3. How can I use the GCD of 195, 645, 321Calculator?

Out the numbers 195, 645, 321 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.