Online GCD Calculator is useful to find the GCD of 129, 558, 438, 731 quickly. Get the easiest ways to solve the greatest common divisor of 129, 558, 438, 731 i.e 1 in different methods as follows.
Given Input numbers are 129, 558, 438, 731
In the factoring method, we have to find the divisors of all numbers
Divisors of 129 :
The positive integer divisors of 129 that completely divides 129 are.
1, 3, 43, 129
Divisors of 558 :
The positive integer divisors of 558 that completely divides 558 are.
1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
Divisors of 731 :
The positive integer divisors of 731 that completely divides 731 are.
1, 17, 43, 731
GCD of numbers is the greatest common divisor
So, the GCD (129, 558, 438, 731) = 1.
Given numbers are 129, 558, 438, 731
The list of prime factors of all numbers are
Prime factors of 129 are 3 x 43
Prime factors of 558 are 2 x 3 x 3 x 31
Prime factors of 438 are 2 x 3 x 73
Prime factors of 731 are 17 x 43
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 129, 558, 438, 731
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(129, 558) = 23994
GCD(129, 558) = ( 129 x 558 ) / 23994
= 129 / 558
= 129
Step2:
LCM(3, 438) = 438
GCD(3, 438) = ( 3 x 438 ) / 438
= 3 / 438
= 3
Step3:
LCM(3, 731) = 2193
GCD(3, 731) = ( 3 x 731 ) / 2193
= 3 / 731
= 3
So, Greatest Common Divisor of 129, 558, 438, 731 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 129, 558, 438, 731
The greatest common divisor of numbers 129, 558, 438, 731 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 129, 558, 438, 731 is 1.
1. What is the GCD of 129, 558, 438, 731?
GCD of given numbers 129, 558, 438, 731 is 1
2. How to calculate the greatest common divisor of 129, 558, 438, 731?
We can find the highest common divisor of 129, 558, 438, 731 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 129, 558, 438, 731 i.e 1.
3. How can I use the GCD of 129, 558, 438, 731Calculator?
Out the numbers 129, 558, 438, 731 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.