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GCD of 857, 621, 687 Calculator

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


Online GCD Calculator is useful to find the GCD of 857, 621, 687 quickly. Get the easiest ways to solve the greatest common divisor of 857, 621, 687 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 857, 621, 687 with Factoring?

Given Input numbers are 857, 621, 687

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

Divisors of 857 :

The positive integer divisors of 857 that completely divides 857 are.

1, 857

Divisors of 621 :

The positive integer divisors of 621 that completely divides 621 are.

1, 3, 9, 23, 27, 69, 207, 621

Divisors of 687 :

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

1, 3, 229, 687


GCD of numbers is the greatest common divisor

So, the GCD (857, 621, 687) = 1.

Find GCD of 857, 621, 687 using Prime Factorization

Given numbers are 857, 621, 687

The list of prime factors of all numbers are

Prime factors of 857 are 857

Prime factors of 621 are 3 x 3 x 3 x 23

Prime factors of 687 are 3 x 229

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

Steps to Calculate GCD of 857, 621, 687 using LCM Formula

Given numbers are 857, 621, 687

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

Apply this formula for all numbers.

Step1:

LCM(857, 621) = 532197

GCD(857, 621) = ( 857 x 621 ) / 532197

= 857 / 621

= 857


Step2:

LCM(1, 687) = 687

GCD(1, 687) = ( 1 x 687 ) / 687

= 1 / 687

= 1


So, Greatest Common Divisor of 857, 621, 687 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 857, 621, 687

Given numbers are 857, 621, 687
The greatest common divisor of numbers 857, 621, 687 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 857, 621, 687 is 1.

FAQs on GCD of 857, 621, 687 Calculator

1. What is the GCD of 857, 621, 687?

GCD of given numbers 857, 621, 687 is 1


2. How to calculate the greatest common divisor of 857, 621, 687?

We can find the highest common divisor of 857, 621, 687 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 857, 621, 687 i.e 1.


3. How can I use the GCD of 857, 621, 687Calculator?

Out the numbers 857, 621, 687 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.