Where do I get the detailed procedure to find GCD of 687, 663, 991?

You can find a detailed procedure to find GCD of 687, 663, 991 on our page.

How to find GCD of 687, 663, 991 on a calculator?

You can find the GCD of 687, 663, 991 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 687, 663, 991 Calculator

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

Online GCD Calculator is useful to find the GCD of 687, 663, 991 quickly. Get the easiest ways to solve the greatest common divisor of 687, 663, 991 i.e 1 in different methods as follows.

How to Find GCD of Numbers 687, 663, 991 with Factoring?

Given Input numbers are 687, 663, 991

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

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 663 :

The positive integer divisors of 663 that completely divides 663 are.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

GCD of numbers is the greatest common divisor

So, the GCD (687, 663, 991) = 1.

Find GCD of 687, 663, 991 using Prime Factorization

Given numbers are 687, 663, 991

The list of prime factors of all numbers are

Prime factors of 687 are 3 x 229

Prime factors of 663 are 3 x 13 x 17

Prime factors of 991 are 991

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

Steps to Calculate GCD of 687, 663, 991 using LCM Formula

Given numbers are 687, 663, 991

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

Apply this formula for all numbers.

Step1:

LCM(687, 663) = 151827

GCD(687, 663) = ( 687 x 663 ) / 151827

= 687 / 663

= 687

Step2:

LCM(3, 991) = 2973

GCD(3, 991) = ( 3 x 991 ) / 2973

= 3 / 991

= 3

So, Greatest Common Divisor of 687, 663, 991 is 1

GCD of Numbers Calculation Examples

Here are some samples of GCD of Numbers calculations.

Greatest Common Divisor of 687, 663, 991

Given numbers are 687, 663, 991
The greatest common divisor of numbers 687, 663, 991 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 663, 991 is 1.

FAQs on GCD of 687, 663, 991 Calculator

1. What is the GCD of 687, 663, 991?

GCD of given numbers 687, 663, 991 is 1

2. How to calculate the greatest common divisor of 687, 663, 991?

We can find the highest common divisor of 687, 663, 991 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 687, 663, 991 i.e 1.

3. How can I use the GCD of 687, 663, 991Calculator?

Out the numbers 687, 663, 991 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.