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GCD of 668, 721, 91 Calculator

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


Online GCD Calculator is useful to find the GCD of 668, 721, 91 quickly. Get the easiest ways to solve the greatest common divisor of 668, 721, 91 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 668, 721, 91 with Factoring?

Given Input numbers are 668, 721, 91

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

Divisors of 668 :

The positive integer divisors of 668 that completely divides 668 are.

1, 2, 4, 167, 334, 668

Divisors of 721 :

The positive integer divisors of 721 that completely divides 721 are.

1, 7, 103, 721

Divisors of 91 :

The positive integer divisors of 91 that completely divides 91 are.

1, 7, 13, 91


GCD of numbers is the greatest common divisor

So, the GCD (668, 721, 91) = 1.

Find GCD of 668, 721, 91 using Prime Factorization

Given numbers are 668, 721, 91

The list of prime factors of all numbers are

Prime factors of 668 are 2 x 2 x 167

Prime factors of 721 are 7 x 103

Prime factors of 91 are 7 x 13

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

Steps to Calculate GCD of 668, 721, 91 using LCM Formula

Given numbers are 668, 721, 91

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

Apply this formula for all numbers.

Step1:

LCM(668, 721) = 481628

GCD(668, 721) = ( 668 x 721 ) / 481628

= 668 / 721

= 668


Step2:

LCM(1, 91) = 91

GCD(1, 91) = ( 1 x 91 ) / 91

= 1 / 91

= 1


So, Greatest Common Divisor of 668, 721, 91 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 668, 721, 91

Given numbers are 668, 721, 91
The greatest common divisor of numbers 668, 721, 91 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 668, 721, 91 is 1.

FAQs on GCD of 668, 721, 91 Calculator

1. What is the GCD of 668, 721, 91?

GCD of given numbers 668, 721, 91 is 1


2. How to calculate the greatest common divisor of 668, 721, 91?

We can find the highest common divisor of 668, 721, 91 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 668, 721, 91 i.e 1.


3. How can I use the GCD of 668, 721, 91Calculator?

Out the numbers 668, 721, 91 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.