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GCD of 685, 973, 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 685, 973, 991 quickly. Get the easiest ways to solve the greatest common divisor of 685, 973, 991 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 685, 973, 991 with Factoring?

Given Input numbers are 685, 973, 991

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

Divisors of 685 :

The positive integer divisors of 685 that completely divides 685 are.

1, 5, 137, 685

Divisors of 973 :

The positive integer divisors of 973 that completely divides 973 are.

1, 7, 139, 973

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 (685, 973, 991) = 1.

Find GCD of 685, 973, 991 using Prime Factorization

Given numbers are 685, 973, 991

The list of prime factors of all numbers are

Prime factors of 685 are 5 x 137

Prime factors of 973 are 7 x 139

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 685, 973, 991 using LCM Formula

Given numbers are 685, 973, 991

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

Apply this formula for all numbers.

Step1:

LCM(685, 973) = 666505

GCD(685, 973) = ( 685 x 973 ) / 666505

= 685 / 973

= 685


Step2:

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

= 1 / 991

= 1


So, Greatest Common Divisor of 685, 973, 991 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 685, 973, 991

Given numbers are 685, 973, 991
The greatest common divisor of numbers 685, 973, 991 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 685, 973, 991 is 1.

FAQs on GCD of 685, 973, 991 Calculator

1. What is the GCD of 685, 973, 991?

GCD of given numbers 685, 973, 991 is 1


2. How to calculate the greatest common divisor of 685, 973, 991?

We can find the highest common divisor of 685, 973, 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 685, 973, 991 i.e 1.


3. How can I use the GCD of 685, 973, 991Calculator?

Out the numbers 685, 973, 991 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.