GCD of 309, 686, 620 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 309, 686, 620 quickly. Get the easiest ways to solve the greatest common divisor of 309, 686, 620 i.e 1 in different methods as follows.
Given Input numbers are 309, 686, 620
In the factoring method, we have to find the divisors of all numbers
Divisors of 309 :
The positive integer divisors of 309 that completely divides 309 are.
1, 3, 103, 309
Divisors of 686 :
The positive integer divisors of 686 that completely divides 686 are.
1, 2, 7, 14, 49, 98, 343, 686
Divisors of 620 :
The positive integer divisors of 620 that completely divides 620 are.
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
GCD of numbers is the greatest common divisor
So, the GCD (309, 686, 620) = 1.
Given numbers are 309, 686, 620
The list of prime factors of all numbers are
Prime factors of 309 are 3 x 103
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 620 are 2 x 2 x 5 x 31
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 309, 686, 620 using LCM Formula
Given numbers are 309, 686, 620
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(309, 686) = 211974
GCD(309, 686) = ( 309 x 686 ) / 211974
= 309 / 686
= 309
Step2:
LCM(1, 620) = 620
GCD(1, 620) = ( 1 x 620 ) / 620
= 1 / 620
= 1
So, Greatest Common Divisor of 309, 686, 620 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 309, 686, 620
Given numbers are 309, 686, 620
The greatest common divisor of numbers 309, 686, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 309, 686, 620 is 1.
FAQs on GCD of 309, 686, 620 Calculator
1. What is the GCD of 309, 686, 620?
GCD of given numbers 309, 686, 620 is 1
2. How to calculate the greatest common divisor of 309, 686, 620?
We can find the highest common divisor of 309, 686, 620 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 309, 686, 620 i.e 1.
3. How can I use the GCD of 309, 686, 620Calculator?
Out the numbers 309, 686, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.