GCD of 828, 855, 621 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 828, 855, 621 quickly. Get the easiest ways to solve the greatest common divisor of 828, 855, 621 i.e 9 in different methods as follows.
Given Input numbers are 828, 855, 621
In the factoring method, we have to find the divisors of all numbers
Divisors of 828 :
The positive integer divisors of 828 that completely divides 828 are.
1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
Divisors of 855 :
The positive integer divisors of 855 that completely divides 855 are.
1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
Divisors of 621 :
The positive integer divisors of 621 that completely divides 621 are.
1, 3, 9, 23, 27, 69, 207, 621
GCD of numbers is the greatest common divisor
So, the GCD (828, 855, 621) = 9.
Given numbers are 828, 855, 621
The list of prime factors of all numbers are
Prime factors of 828 are 2 x 2 x 3 x 3 x 23
Prime factors of 855 are 3 x 3 x 5 x 19
Prime factors of 621 are 3 x 3 x 3 x 23
The highest common occurrence is 32
Therefore, GCD of 828, 855, 621 is 9.
Steps to Calculate GCD of 828, 855, 621 using LCM Formula
Given numbers are 828, 855, 621
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(828, 855) = 78660
GCD(828, 855) = ( 828 x 855 ) / 78660
= 828 / 855
= 828
Step2:
LCM(9, 621) = 621
GCD(9, 621) = ( 9 x 621 ) / 621
= 9 / 621
= 9
So, Greatest Common Divisor of 828, 855, 621 is 9
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 828, 855, 621
Given numbers are 828, 855, 621
The greatest common divisor of numbers 828, 855, 621 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 828, 855, 621 is 9.
FAQs on GCD of 828, 855, 621 Calculator
1. What is the GCD of 828, 855, 621?
GCD of given numbers 828, 855, 621 is 9
2. How to calculate the greatest common divisor of 828, 855, 621?
We can find the highest common divisor of 828, 855, 621 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 828, 855, 621 i.e 9.
3. How can I use the GCD of 828, 855, 621Calculator?
Out the numbers 828, 855, 621 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.