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 399, 687, 27, 830 i.e. 1 largest integer that divides all the numbers equally.
GCD of 399, 687, 27, 830 is 1
GCD(399, 687, 27, 830) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 399, 687, 27, 830 is 1
GCD(399, 687, 27, 830) = 1
Given Input numbers are 399, 687, 27, 830
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 399
List of positive integer divisors of 399 that divides 399 without a remainder.
1, 3, 7, 19, 21, 57, 133, 399
Divisors of 687
List of positive integer divisors of 687 that divides 687 without a remainder.
1, 3, 229, 687
Divisors of 27
List of positive integer divisors of 27 that divides 27 without a remainder.
1, 3, 9, 27
Divisors of 830
List of positive integer divisors of 830 that divides 830 without a remainder.
1, 2, 5, 10, 83, 166, 415, 830
Greatest Common Divisior
We found the divisors of 399, 687, 27, 830 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 399, 687, 27, 830 is 1.
Therefore, GCD of numbers 399, 687, 27, 830 is 1
Given Input Data is 399, 687, 27, 830
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 399 is 3 x 7 x 19
Prime Factorization of 687 is 3 x 229
Prime Factorization of 27 is 3 x 3 x 3
Prime Factorization of 830 is 2 x 5 x 83
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(399, 687) = 91371
GCD(399, 687) = ( 399 x 687 ) / 91371
GCD(399, 687) = 274113 / 91371
GCD(399, 687) = 3
Step2:
Here we consider the GCD from the above i.e. 3 as first number and the next as 27
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(3, 27) = 27
GCD(3, 27) = ( 3 x 27 ) / 27
GCD(3, 27) = 81 / 27
GCD(3, 27) = 3
Step3:
Here we consider the GCD from the above i.e. 3 as first number and the next as 830
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(3, 830) = 2490
GCD(3, 830) = ( 3 x 830 ) / 2490
GCD(3, 830) = 2490 / 2490
GCD(3, 830) = 1
GCD of 399, 687, 27, 830 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 399, 687, 27, 830?
GCD of 399, 687, 27, 830 is 1
2. Where do I get the detailed procedure to find GCD of 399, 687, 27, 830?
You can find a detailed procedure to find GCD of 399, 687, 27, 830 on our page.
3. How to find GCD of 399, 687, 27, 830 on a calculator?
You can find the GCD of 399, 687, 27, 830 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.