GCD of 820, 644, 585 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 820, 644, 585 quickly. Get the easiest ways to solve the greatest common divisor of 820, 644, 585 i.e 1 in different methods as follows.
Given Input numbers are 820, 644, 585
In the factoring method, we have to find the divisors of all numbers
Divisors of 820 :
The positive integer divisors of 820 that completely divides 820 are.
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Divisors of 644 :
The positive integer divisors of 644 that completely divides 644 are.
1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
Divisors of 585 :
The positive integer divisors of 585 that completely divides 585 are.
1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585
GCD of numbers is the greatest common divisor
So, the GCD (820, 644, 585) = 1.
Given numbers are 820, 644, 585
The list of prime factors of all numbers are
Prime factors of 820 are 2 x 2 x 5 x 41
Prime factors of 644 are 2 x 2 x 7 x 23
Prime factors of 585 are 3 x 3 x 5 x 13
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 820, 644, 585 using LCM Formula
Given numbers are 820, 644, 585
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(820, 644) = 132020
GCD(820, 644) = ( 820 x 644 ) / 132020
= 820 / 644
= 820
Step2:
LCM(4, 585) = 2340
GCD(4, 585) = ( 4 x 585 ) / 2340
= 4 / 585
= 4
So, Greatest Common Divisor of 820, 644, 585 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 820, 644, 585
Given numbers are 820, 644, 585
The greatest common divisor of numbers 820, 644, 585 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 644, 585 is 1.
FAQs on GCD of 820, 644, 585 Calculator
1. What is the GCD of 820, 644, 585?
GCD of given numbers 820, 644, 585 is 1
2. How to calculate the greatest common divisor of 820, 644, 585?
We can find the highest common divisor of 820, 644, 585 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 820, 644, 585 i.e 1.
3. How can I use the GCD of 820, 644, 585Calculator?
Out the numbers 820, 644, 585 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.