GCD of 686, 120, 556 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 686, 120, 556 quickly. Get the easiest ways to solve the greatest common divisor of 686, 120, 556 i.e 2 in different methods as follows.
Given Input numbers are 686, 120, 556
In the factoring method, we have to find the divisors of all numbers
Divisors of 686 :
The positive integer divisors of 686 that completely divides 686 are.
1, 2, 7, 14, 49, 98, 343, 686
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
Divisors of 556 :
The positive integer divisors of 556 that completely divides 556 are.
1, 2, 4, 139, 278, 556
GCD of numbers is the greatest common divisor
So, the GCD (686, 120, 556) = 2.
Given numbers are 686, 120, 556
The list of prime factors of all numbers are
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 120 are 2 x 2 x 2 x 3 x 5
Prime factors of 556 are 2 x 2 x 139
The highest common occurrence is 21
Therefore, GCD of 686, 120, 556 is 2.
Steps to Calculate GCD of 686, 120, 556 using LCM Formula
Given numbers are 686, 120, 556
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(686, 120) = 41160
GCD(686, 120) = ( 686 x 120 ) / 41160
= 686 / 120
= 686
Step2:
LCM(2, 556) = 556
GCD(2, 556) = ( 2 x 556 ) / 556
= 2 / 556
= 2
So, Greatest Common Divisor of 686, 120, 556 is 2
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 686, 120, 556
Given numbers are 686, 120, 556
The greatest common divisor of numbers 686, 120, 556 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 120, 556 is 2.
FAQs on GCD of 686, 120, 556 Calculator
1. What is the GCD of 686, 120, 556?
GCD of given numbers 686, 120, 556 is 2
2. How to calculate the greatest common divisor of 686, 120, 556?
We can find the highest common divisor of 686, 120, 556 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 686, 120, 556 i.e 2.
3. How can I use the GCD of 686, 120, 556Calculator?
Out the numbers 686, 120, 556 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.