GCD of 686, 418, 720 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 686, 418, 720 quickly. Get the easiest ways to solve the greatest common divisor of 686, 418, 720 i.e 2 in different methods as follows.
Given Input numbers are 686, 418, 720
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 418 :
The positive integer divisors of 418 that completely divides 418 are.
1, 2, 11, 19, 22, 38, 209, 418
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
GCD of numbers is the greatest common divisor
So, the GCD (686, 418, 720) = 2.
Given numbers are 686, 418, 720
The list of prime factors of all numbers are
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 418 are 2 x 11 x 19
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
The highest common occurrence is 21
Therefore, GCD of 686, 418, 720 is 2.
Steps to Calculate GCD of 686, 418, 720 using LCM Formula
Given numbers are 686, 418, 720
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(686, 418) = 143374
GCD(686, 418) = ( 686 x 418 ) / 143374
= 686 / 418
= 686
Step2:
LCM(2, 720) = 720
GCD(2, 720) = ( 2 x 720 ) / 720
= 2 / 720
= 2
So, Greatest Common Divisor of 686, 418, 720 is 2
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 686, 418, 720
Given numbers are 686, 418, 720
The greatest common divisor of numbers 686, 418, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 418, 720 is 2.
FAQs on GCD of 686, 418, 720 Calculator
1. What is the GCD of 686, 418, 720?
GCD of given numbers 686, 418, 720 is 2
2. How to calculate the greatest common divisor of 686, 418, 720?
We can find the highest common divisor of 686, 418, 720 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, 418, 720 i.e 2.
3. How can I use the GCD of 686, 418, 720Calculator?
Out the numbers 686, 418, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.