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GCD of 393, 609, 691 Calculator

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


Online GCD Calculator is useful to find the GCD of 393, 609, 691 quickly. Get the easiest ways to solve the greatest common divisor of 393, 609, 691 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 393, 609, 691 with Factoring?

Given Input numbers are 393, 609, 691

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

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 609 :

The positive integer divisors of 609 that completely divides 609 are.

1, 3, 7, 21, 29, 87, 203, 609

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691


GCD of numbers is the greatest common divisor

So, the GCD (393, 609, 691) = 1.

Find GCD of 393, 609, 691 using Prime Factorization

Given numbers are 393, 609, 691

The list of prime factors of all numbers are

Prime factors of 393 are 3 x 131

Prime factors of 609 are 3 x 7 x 29

Prime factors of 691 are 691

The above numbers do not have any common prime factor. So GCD is 1

Steps to Calculate GCD of 393, 609, 691 using LCM Formula

Given numbers are 393, 609, 691

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

Apply this formula for all numbers.

Step1:

LCM(393, 609) = 79779

GCD(393, 609) = ( 393 x 609 ) / 79779

= 393 / 609

= 393


Step2:

LCM(3, 691) = 2073

GCD(3, 691) = ( 3 x 691 ) / 2073

= 3 / 691

= 3


So, Greatest Common Divisor of 393, 609, 691 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 393, 609, 691

Given numbers are 393, 609, 691
The greatest common divisor of numbers 393, 609, 691 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 393, 609, 691 is 1.

FAQs on GCD of 393, 609, 691 Calculator

1. What is the GCD of 393, 609, 691?

GCD of given numbers 393, 609, 691 is 1


2. How to calculate the greatest common divisor of 393, 609, 691?

We can find the highest common divisor of 393, 609, 691 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 393, 609, 691 i.e 1.


3. How can I use the GCD of 393, 609, 691Calculator?

Out the numbers 393, 609, 691 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.