Online GCD Calculator is useful to find the GCD of 427, 138, 865, 205 quickly. Get the easiest ways to solve the greatest common divisor of 427, 138, 865, 205 i.e 1 in different methods as follows.
Given Input numbers are 427, 138, 865, 205
In the factoring method, we have to find the divisors of all numbers
Divisors of 427 :
The positive integer divisors of 427 that completely divides 427 are.
1, 7, 61, 427
Divisors of 138 :
The positive integer divisors of 138 that completely divides 138 are.
1, 2, 3, 6, 23, 46, 69, 138
Divisors of 865 :
The positive integer divisors of 865 that completely divides 865 are.
1, 5, 173, 865
Divisors of 205 :
The positive integer divisors of 205 that completely divides 205 are.
1, 5, 41, 205
GCD of numbers is the greatest common divisor
So, the GCD (427, 138, 865, 205) = 1.
Given numbers are 427, 138, 865, 205
The list of prime factors of all numbers are
Prime factors of 427 are 7 x 61
Prime factors of 138 are 2 x 3 x 23
Prime factors of 865 are 5 x 173
Prime factors of 205 are 5 x 41
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 427, 138, 865, 205
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(427, 138) = 58926
GCD(427, 138) = ( 427 x 138 ) / 58926
= 427 / 138
= 427
Step2:
LCM(1, 865) = 865
GCD(1, 865) = ( 1 x 865 ) / 865
= 1 / 865
= 1
Step3:
LCM(1, 205) = 205
GCD(1, 205) = ( 1 x 205 ) / 205
= 1 / 205
= 1
So, Greatest Common Divisor of 427, 138, 865, 205 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 427, 138, 865, 205
The greatest common divisor of numbers 427, 138, 865, 205 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 427, 138, 865, 205 is 1.
1. What is the GCD of 427, 138, 865, 205?
GCD of given numbers 427, 138, 865, 205 is 1
2. How to calculate the greatest common divisor of 427, 138, 865, 205?
We can find the highest common divisor of 427, 138, 865, 205 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 427, 138, 865, 205 i.e 1.
3. How can I use the GCD of 427, 138, 865, 205Calculator?
Out the numbers 427, 138, 865, 205 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.