GCD of 387, 123, 987, 809 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 387, 123, 987, 809 quickly. Get the easiest ways to solve the greatest common divisor of 387, 123, 987, 809 i.e 1 in different methods as follows.
Given Input numbers are 387, 123, 987, 809
In the factoring method, we have to find the divisors of all numbers
Divisors of 387 :
The positive integer divisors of 387 that completely divides 387 are.
1, 3, 9, 43, 129, 387
Divisors of 123 :
The positive integer divisors of 123 that completely divides 123 are.
1, 3, 41, 123
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
Divisors of 809 :
The positive integer divisors of 809 that completely divides 809 are.
1, 809
GCD of numbers is the greatest common divisor
So, the GCD (387, 123, 987, 809) = 1.
Given numbers are 387, 123, 987, 809
The list of prime factors of all numbers are
Prime factors of 387 are 3 x 3 x 43
Prime factors of 123 are 3 x 41
Prime factors of 987 are 3 x 7 x 47
Prime factors of 809 are 809
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 387, 123, 987, 809 using LCM Formula
Given numbers are 387, 123, 987, 809
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(387, 123) = 15867
GCD(387, 123) = ( 387 x 123 ) / 15867
= 387 / 123
= 387
Step2:
LCM(3, 987) = 987
GCD(3, 987) = ( 3 x 987 ) / 987
= 3 / 987
= 3
Step3:
LCM(3, 809) = 2427
GCD(3, 809) = ( 3 x 809 ) / 2427
= 3 / 809
= 3
So, Greatest Common Divisor of 387, 123, 987, 809 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 387, 123, 987, 809
Given numbers are 387, 123, 987, 809
The greatest common divisor of numbers 387, 123, 987, 809 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 387, 123, 987, 809 is 1.
FAQs on GCD of 387, 123, 987, 809 Calculator
1. What is the GCD of 387, 123, 987, 809?
GCD of given numbers 387, 123, 987, 809 is 1
2. How to calculate the greatest common divisor of 387, 123, 987, 809?
We can find the highest common divisor of 387, 123, 987, 809 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 387, 123, 987, 809 i.e 1.
3. How can I use the GCD of 387, 123, 987, 809Calculator?
Out the numbers 387, 123, 987, 809 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.