GCD of 821, 763, 721 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 821, 763, 721 quickly. Get the easiest ways to solve the greatest common divisor of 821, 763, 721 i.e 1 in different methods as follows.
Given Input numbers are 821, 763, 721
In the factoring method, we have to find the divisors of all numbers
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
Divisors of 763 :
The positive integer divisors of 763 that completely divides 763 are.
1, 7, 109, 763
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
GCD of numbers is the greatest common divisor
So, the GCD (821, 763, 721) = 1.
Given numbers are 821, 763, 721
The list of prime factors of all numbers are
Prime factors of 821 are 821
Prime factors of 763 are 7 x 109
Prime factors of 721 are 7 x 103
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 821, 763, 721 using LCM Formula
Given numbers are 821, 763, 721
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(821, 763) = 626423
GCD(821, 763) = ( 821 x 763 ) / 626423
= 821 / 763
= 821
Step2:
LCM(1, 721) = 721
GCD(1, 721) = ( 1 x 721 ) / 721
= 1 / 721
= 1
So, Greatest Common Divisor of 821, 763, 721 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 821, 763, 721
Given numbers are 821, 763, 721
The greatest common divisor of numbers 821, 763, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 763, 721 is 1.
FAQs on GCD of 821, 763, 721 Calculator
1. What is the GCD of 821, 763, 721?
GCD of given numbers 821, 763, 721 is 1
2. How to calculate the greatest common divisor of 821, 763, 721?
We can find the highest common divisor of 821, 763, 721 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 821, 763, 721 i.e 1.
3. How can I use the GCD of 821, 763, 721Calculator?
Out the numbers 821, 763, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.