GCD of 123, 621, 756 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 123, 621, 756 quickly. Get the easiest ways to solve the greatest common divisor of 123, 621, 756 i.e 3 in different methods as follows.
Given Input numbers are 123, 621, 756
In the factoring method, we have to find the divisors of all numbers
Divisors of 123 :
The positive integer divisors of 123 that completely divides 123 are.
1, 3, 41, 123
Divisors of 621 :
The positive integer divisors of 621 that completely divides 621 are.
1, 3, 9, 23, 27, 69, 207, 621
Divisors of 756 :
The positive integer divisors of 756 that completely divides 756 are.
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
GCD of numbers is the greatest common divisor
So, the GCD (123, 621, 756) = 3.
Given numbers are 123, 621, 756
The list of prime factors of all numbers are
Prime factors of 123 are 3 x 41
Prime factors of 621 are 3 x 3 x 3 x 23
Prime factors of 756 are 2 x 2 x 3 x 3 x 3 x 7
The highest common occurrence is 31
Therefore, GCD of 123, 621, 756 is 3.
Steps to Calculate GCD of 123, 621, 756 using LCM Formula
Given numbers are 123, 621, 756
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(123, 621) = 25461
GCD(123, 621) = ( 123 x 621 ) / 25461
= 123 / 621
= 123
Step2:
LCM(3, 756) = 756
GCD(3, 756) = ( 3 x 756 ) / 756
= 3 / 756
= 3
So, Greatest Common Divisor of 123, 621, 756 is 3
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 123, 621, 756
Given numbers are 123, 621, 756
The greatest common divisor of numbers 123, 621, 756 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 621, 756 is 3.
FAQs on GCD of 123, 621, 756 Calculator
1. What is the GCD of 123, 621, 756?
GCD of given numbers 123, 621, 756 is 3
2. How to calculate the greatest common divisor of 123, 621, 756?
We can find the highest common divisor of 123, 621, 756 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 123, 621, 756 i.e 3.
3. How can I use the GCD of 123, 621, 756Calculator?
Out the numbers 123, 621, 756 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.