GCD of 780, 636, 120 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 780, 636, 120 quickly. Get the easiest ways to solve the greatest common divisor of 780, 636, 120 i.e 12 in different methods as follows.
Given Input numbers are 780, 636, 120
In the factoring method, we have to find the divisors of all numbers
Divisors of 780 :
The positive integer divisors of 780 that completely divides 780 are.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
Divisors of 636 :
The positive integer divisors of 636 that completely divides 636 are.
1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636
Divisors of 120 :
The positive integer divisors of 120 that completely divides 120 are.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
GCD of numbers is the greatest common divisor
So, the GCD (780, 636, 120) = 12.
Given numbers are 780, 636, 120
The list of prime factors of all numbers are
Prime factors of 780 are 2 x 2 x 3 x 5 x 13
Prime factors of 636 are 2 x 2 x 3 x 53
Prime factors of 120 are 2 x 2 x 2 x 3 x 5
The highest common occurrence is 22 x 31
Therefore, GCD of 780, 636, 120 is 12.
Steps to Calculate GCD of 780, 636, 120 using LCM Formula
Given numbers are 780, 636, 120
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(780, 636) = 41340
GCD(780, 636) = ( 780 x 636 ) / 41340
= 780 / 636
= 780
Step2:
LCM(12, 120) = 120
GCD(12, 120) = ( 12 x 120 ) / 120
= 12 / 120
= 12
So, Greatest Common Divisor of 780, 636, 120 is 12
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 780, 636, 120
Given numbers are 780, 636, 120
The greatest common divisor of numbers 780, 636, 120 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 636, 120 is 12.
FAQs on GCD of 780, 636, 120 Calculator
1. What is the GCD of 780, 636, 120?
GCD of given numbers 780, 636, 120 is 12
2. How to calculate the greatest common divisor of 780, 636, 120?
We can find the highest common divisor of 780, 636, 120 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 780, 636, 120 i.e 12.
3. How can I use the GCD of 780, 636, 120Calculator?
Out the numbers 780, 636, 120 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.