Where do I get the detailed procedure to find GCD of 287, 355, 391?

You can find a detailed procedure to find GCD of 287, 355, 391 on our page.

How to find GCD of 287, 355, 391 on a calculator?

You can find the GCD of 287, 355, 391 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.

GCD of 287, 355, 391 Calculator

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

Online GCD Calculator is useful to find the GCD of 287, 355, 391 quickly. Get the easiest ways to solve the greatest common divisor of 287, 355, 391 i.e 1 in different methods as follows.

How to Find GCD of Numbers 287, 355, 391 with Factoring?

Given Input numbers are 287, 355, 391

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

Divisors of 287 :

The positive integer divisors of 287 that completely divides 287 are.

1, 7, 41, 287

Divisors of 355 :

The positive integer divisors of 355 that completely divides 355 are.

1, 5, 71, 355

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

GCD of numbers is the greatest common divisor

So, the GCD (287, 355, 391) = 1.

Find GCD of 287, 355, 391 using Prime Factorization

Given numbers are 287, 355, 391

The list of prime factors of all numbers are

Prime factors of 287 are 7 x 41

Prime factors of 355 are 5 x 71

Prime factors of 391 are 17 x 23

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

Steps to Calculate GCD of 287, 355, 391 using LCM Formula

Given numbers are 287, 355, 391

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

Apply this formula for all numbers.

Step1:

LCM(287, 355) = 101885

GCD(287, 355) = ( 287 x 355 ) / 101885

= 287 / 355

= 287

Step2:

LCM(1, 391) = 391

GCD(1, 391) = ( 1 x 391 ) / 391

= 1 / 391

= 1

So, Greatest Common Divisor of 287, 355, 391 is 1

GCD of Numbers Calculation Examples

Here are some samples of GCD of Numbers calculations.

Greatest Common Divisor of 287, 355, 391

Given numbers are 287, 355, 391
The greatest common divisor of numbers 287, 355, 391 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 287, 355, 391 is 1.

FAQs on GCD of 287, 355, 391 Calculator

1. What is the GCD of 287, 355, 391?

GCD of given numbers 287, 355, 391 is 1

2. How to calculate the greatest common divisor of 287, 355, 391?

We can find the highest common divisor of 287, 355, 391 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 287, 355, 391 i.e 1.

3. How can I use the GCD of 287, 355, 391Calculator?

Out the numbers 287, 355, 391 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.