GCD of 891, 720, 84 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 891, 720, 84 quickly. Get the easiest ways to solve the greatest common divisor of 891, 720, 84 i.e 3 in different methods as follows.
Given Input numbers are 891, 720, 84
In the factoring method, we have to find the divisors of all numbers
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
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 84 :
The positive integer divisors of 84 that completely divides 84 are.
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
GCD of numbers is the greatest common divisor
So, the GCD (891, 720, 84) = 3.
Given numbers are 891, 720, 84
The list of prime factors of all numbers are
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 84 are 2 x 2 x 3 x 7
The highest common occurrence is 31
Therefore, GCD of 891, 720, 84 is 3.
Steps to Calculate GCD of 891, 720, 84 using LCM Formula
Given numbers are 891, 720, 84
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(891, 720) = 71280
GCD(891, 720) = ( 891 x 720 ) / 71280
= 891 / 720
= 891
Step2:
LCM(9, 84) = 252
GCD(9, 84) = ( 9 x 84 ) / 252
= 9 / 84
= 9
So, Greatest Common Divisor of 891, 720, 84 is 3
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 891, 720, 84
Given numbers are 891, 720, 84
The greatest common divisor of numbers 891, 720, 84 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 891, 720, 84 is 3.
FAQs on GCD of 891, 720, 84 Calculator
1. What is the GCD of 891, 720, 84?
GCD of given numbers 891, 720, 84 is 3
2. How to calculate the greatest common divisor of 891, 720, 84?
We can find the highest common divisor of 891, 720, 84 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 891, 720, 84 i.e 3.
3. How can I use the GCD of 891, 720, 84Calculator?
Out the numbers 891, 720, 84 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.