GCD of 691, 720, 891 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 691, 720, 891 quickly. Get the easiest ways to solve the greatest common divisor of 691, 720, 891 i.e 1 in different methods as follows.
Given Input numbers are 691, 720, 891
In the factoring method, we have to find the divisors of all numbers
Divisors of 691 :
The positive integer divisors of 691 that completely divides 691 are.
1, 691
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
GCD of numbers is the greatest common divisor
So, the GCD (691, 720, 891) = 1.
Given numbers are 691, 720, 891
The list of prime factors of all numbers are
Prime factors of 691 are 691
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 691, 720, 891 using LCM Formula
Given numbers are 691, 720, 891
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(691, 720) = 497520
GCD(691, 720) = ( 691 x 720 ) / 497520
= 691 / 720
= 691
Step2:
LCM(1, 891) = 891
GCD(1, 891) = ( 1 x 891 ) / 891
= 1 / 891
= 1
So, Greatest Common Divisor of 691, 720, 891 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 691, 720, 891
Given numbers are 691, 720, 891
The greatest common divisor of numbers 691, 720, 891 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 720, 891 is 1.
FAQs on GCD of 691, 720, 891 Calculator
1. What is the GCD of 691, 720, 891?
GCD of given numbers 691, 720, 891 is 1
2. How to calculate the greatest common divisor of 691, 720, 891?
We can find the highest common divisor of 691, 720, 891 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 691, 720, 891 i.e 1.
3. How can I use the GCD of 691, 720, 891Calculator?
Out the numbers 691, 720, 891 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.