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 645, 449, 621, 323 i.e. 1 largest integer that divides all the numbers equally.
GCD of 645, 449, 621, 323 is 1
GCD(645, 449, 621, 323) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 645, 449, 621, 323 is 1
GCD(645, 449, 621, 323) = 1
Given Input numbers are 645, 449, 621, 323
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 645
List of positive integer divisors of 645 that divides 645 without a remainder.
1, 3, 5, 15, 43, 129, 215, 645
Divisors of 449
List of positive integer divisors of 449 that divides 449 without a remainder.
1, 449
Divisors of 621
List of positive integer divisors of 621 that divides 621 without a remainder.
1, 3, 9, 23, 27, 69, 207, 621
Divisors of 323
List of positive integer divisors of 323 that divides 323 without a remainder.
1, 17, 19, 323
Greatest Common Divisior
We found the divisors of 645, 449, 621, 323 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 645, 449, 621, 323 is 1.
Therefore, GCD of numbers 645, 449, 621, 323 is 1
Given Input Data is 645, 449, 621, 323
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 645 is 3 x 5 x 43
Prime Factorization of 449 is 449
Prime Factorization of 621 is 3 x 3 x 3 x 23
Prime Factorization of 323 is 17 x 19
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(645, 449) = 289605
GCD(645, 449) = ( 645 x 449 ) / 289605
GCD(645, 449) = 289605 / 289605
GCD(645, 449) = 1
Step2:
Here we consider the GCD from the above i.e. 1 as first number and the next as 621
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 621) = 621
GCD(1, 621) = ( 1 x 621 ) / 621
GCD(1, 621) = 621 / 621
GCD(1, 621) = 1
Step3:
Here we consider the GCD from the above i.e. 1 as first number and the next as 323
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 323) = 323
GCD(1, 323) = ( 1 x 323 ) / 323
GCD(1, 323) = 323 / 323
GCD(1, 323) = 1
GCD of 645, 449, 621, 323 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 645, 449, 621, 323?
GCD of 645, 449, 621, 323 is 1
2. Where do I get the detailed procedure to find GCD of 645, 449, 621, 323?
You can find a detailed procedure to find GCD of 645, 449, 621, 323 on our page.
3. How to find GCD of 645, 449, 621, 323 on a calculator?
You can find the GCD of 645, 449, 621, 323 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.