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GCD of 309, 665, 79 Calculator

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


Online GCD Calculator is useful to find the GCD of 309, 665, 79 quickly. Get the easiest ways to solve the greatest common divisor of 309, 665, 79 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 309, 665, 79 with Factoring?

Given Input numbers are 309, 665, 79

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

Divisors of 309 :

The positive integer divisors of 309 that completely divides 309 are.

1, 3, 103, 309

Divisors of 665 :

The positive integer divisors of 665 that completely divides 665 are.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 79 :

The positive integer divisors of 79 that completely divides 79 are.

1, 79


GCD of numbers is the greatest common divisor

So, the GCD (309, 665, 79) = 1.

Find GCD of 309, 665, 79 using Prime Factorization

Given numbers are 309, 665, 79

The list of prime factors of all numbers are

Prime factors of 309 are 3 x 103

Prime factors of 665 are 5 x 7 x 19

Prime factors of 79 are 79

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

Steps to Calculate GCD of 309, 665, 79 using LCM Formula

Given numbers are 309, 665, 79

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

Apply this formula for all numbers.

Step1:

LCM(309, 665) = 205485

GCD(309, 665) = ( 309 x 665 ) / 205485

= 309 / 665

= 309


Step2:

LCM(1, 79) = 79

GCD(1, 79) = ( 1 x 79 ) / 79

= 1 / 79

= 1


So, Greatest Common Divisor of 309, 665, 79 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 309, 665, 79

Given numbers are 309, 665, 79
The greatest common divisor of numbers 309, 665, 79 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 309, 665, 79 is 1.

FAQs on GCD of 309, 665, 79 Calculator

1. What is the GCD of 309, 665, 79?

GCD of given numbers 309, 665, 79 is 1


2. How to calculate the greatest common divisor of 309, 665, 79?

We can find the highest common divisor of 309, 665, 79 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 309, 665, 79 i.e 1.


3. How can I use the GCD of 309, 665, 79Calculator?

Out the numbers 309, 665, 79 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.