Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCD Calculator to determine the Greatest Common Divisor of 644, 815, 23, 729 i.e. 1 largest integer that divides all the numbers equally.
GCD of 644, 815, 23, 729 is 1
GCD(644, 815, 23, 729) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 644, 815, 23, 729 is 1
GCD(644, 815, 23, 729) = 1
Given Input numbers are 644, 815, 23, 729
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 644
List of positive integer divisors of 644 that divides 644 without a remainder.
1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
Divisors of 815
List of positive integer divisors of 815 that divides 815 without a remainder.
1, 5, 163, 815
Divisors of 23
List of positive integer divisors of 23 that divides 23 without a remainder.
1, 23
Divisors of 729
List of positive integer divisors of 729 that divides 729 without a remainder.
1, 3, 9, 27, 81, 243, 729
Greatest Common Divisior
We found the divisors of 644, 815, 23, 729 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 815, 23, 729 is 1.
Therefore, GCD of numbers 644, 815, 23, 729 is 1
Given Input Data is 644, 815, 23, 729
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 644 is 2 x 2 x 7 x 23
Prime Factorization of 815 is 5 x 163
Prime Factorization of 23 is 23
Prime Factorization of 729 is 3 x 3 x 3 x 3 x 3 x 3
The above numbers do not have any common prime factor. So GCD is 1
Step1:
Let's calculate the GCD of first two numbers
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(644, 815) = 524860
GCD(644, 815) = ( 644 x 815 ) / 524860
GCD(644, 815) = 524860 / 524860
GCD(644, 815) = 1
Step2:
Here we consider the GCD from the above i.e. 1 as first number and the next as 23
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 23) = 23
GCD(1, 23) = ( 1 x 23 ) / 23
GCD(1, 23) = 23 / 23
GCD(1, 23) = 1
Step3:
Here we consider the GCD from the above i.e. 1 as first number and the next as 729
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 729) = 729
GCD(1, 729) = ( 1 x 729 ) / 729
GCD(1, 729) = 729 / 729
GCD(1, 729) = 1
GCD of 644, 815, 23, 729 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 644, 815, 23, 729?
GCD of 644, 815, 23, 729 is 1
2. Where do I get the detailed procedure to find GCD of 644, 815, 23, 729?
You can find a detailed procedure to find GCD of 644, 815, 23, 729 on our page.
3. How to find GCD of 644, 815, 23, 729 on a calculator?
You can find the GCD of 644, 815, 23, 729 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.