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 189, 721, 117 i.e. 1 largest integer that divides all the numbers equally.
GCD of 189, 721, 117 is 1
GCD(189, 721, 117) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 189, 721, 117 is 1
GCD(189, 721, 117) = 1
Given Input numbers are 189, 721, 117
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 189
List of positive integer divisors of 189 that divides 189 without a remainder.
1, 3, 7, 9, 21, 27, 63, 189
Divisors of 721
List of positive integer divisors of 721 that divides 721 without a remainder.
1, 7, 103, 721
Divisors of 117
List of positive integer divisors of 117 that divides 117 without a remainder.
1, 3, 9, 13, 39, 117
Greatest Common Divisior
We found the divisors of 189, 721, 117 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 189, 721, 117 is 1.
Therefore, GCD of numbers 189, 721, 117 is 1
Given Input Data is 189, 721, 117
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 189 is 3 x 3 x 3 x 7
Prime Factorization of 721 is 7 x 103
Prime Factorization of 117 is 3 x 3 x 13
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(189, 721) = 19467
GCD(189, 721) = ( 189 x 721 ) / 19467
GCD(189, 721) = 136269 / 19467
GCD(189, 721) = 7
Step2:
Here we consider the GCD from the above i.e. 7 as first number and the next as 117
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(7, 117) = 819
GCD(7, 117) = ( 7 x 117 ) / 819
GCD(7, 117) = 819 / 819
GCD(7, 117) = 1
GCD of 189, 721, 117 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 189, 721, 117?
GCD of 189, 721, 117 is 1
2. Where do I get the detailed procedure to find GCD of 189, 721, 117?
You can find a detailed procedure to find GCD of 189, 721, 117 on our page.
3. How to find GCD of 189, 721, 117 on a calculator?
You can find the GCD of 189, 721, 117 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.