Online GCD Calculator is useful to find the GCD of 123, 685, 858, 389 quickly. Get the easiest ways to solve the greatest common divisor of 123, 685, 858, 389 i.e 1 in different methods as follows.
Given Input numbers are 123, 685, 858, 389
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 685 :
The positive integer divisors of 685 that completely divides 685 are.
1, 5, 137, 685
Divisors of 858 :
The positive integer divisors of 858 that completely divides 858 are.
1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
Divisors of 389 :
The positive integer divisors of 389 that completely divides 389 are.
1, 389
GCD of numbers is the greatest common divisor
So, the GCD (123, 685, 858, 389) = 1.
Given numbers are 123, 685, 858, 389
The list of prime factors of all numbers are
Prime factors of 123 are 3 x 41
Prime factors of 685 are 5 x 137
Prime factors of 858 are 2 x 3 x 11 x 13
Prime factors of 389 are 389
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 123, 685, 858, 389
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(123, 685) = 84255
GCD(123, 685) = ( 123 x 685 ) / 84255
= 123 / 685
= 123
Step2:
LCM(1, 858) = 858
GCD(1, 858) = ( 1 x 858 ) / 858
= 1 / 858
= 1
Step3:
LCM(1, 389) = 389
GCD(1, 389) = ( 1 x 389 ) / 389
= 1 / 389
= 1
So, Greatest Common Divisor of 123, 685, 858, 389 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 123, 685, 858, 389
The greatest common divisor of numbers 123, 685, 858, 389 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 685, 858, 389 is 1.
1. What is the GCD of 123, 685, 858, 389?
GCD of given numbers 123, 685, 858, 389 is 1
2. How to calculate the greatest common divisor of 123, 685, 858, 389?
We can find the highest common divisor of 123, 685, 858, 389 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, 685, 858, 389 i.e 1.
3. How can I use the GCD of 123, 685, 858, 389Calculator?
Out the numbers 123, 685, 858, 389 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.