Online GCD Calculator is useful to find the GCD of 387, 891, 164, 647 quickly. Get the easiest ways to solve the greatest common divisor of 387, 891, 164, 647 i.e 1 in different methods as follows.
Given Input numbers are 387, 891, 164, 647
In the factoring method, we have to find the divisors of all numbers
Divisors of 387 :
The positive integer divisors of 387 that completely divides 387 are.
1, 3, 9, 43, 129, 387
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
Divisors of 164 :
The positive integer divisors of 164 that completely divides 164 are.
1, 2, 4, 41, 82, 164
Divisors of 647 :
The positive integer divisors of 647 that completely divides 647 are.
1, 647
GCD of numbers is the greatest common divisor
So, the GCD (387, 891, 164, 647) = 1.
Given numbers are 387, 891, 164, 647
The list of prime factors of all numbers are
Prime factors of 387 are 3 x 3 x 43
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
Prime factors of 164 are 2 x 2 x 41
Prime factors of 647 are 647
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 387, 891, 164, 647
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(387, 891) = 38313
GCD(387, 891) = ( 387 x 891 ) / 38313
= 387 / 891
= 387
Step2:
LCM(9, 164) = 1476
GCD(9, 164) = ( 9 x 164 ) / 1476
= 9 / 164
= 9
Step3:
LCM(1, 647) = 647
GCD(1, 647) = ( 1 x 647 ) / 647
= 1 / 647
= 1
So, Greatest Common Divisor of 387, 891, 164, 647 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 387, 891, 164, 647
The greatest common divisor of numbers 387, 891, 164, 647 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 387, 891, 164, 647 is 1.
1. What is the GCD of 387, 891, 164, 647?
GCD of given numbers 387, 891, 164, 647 is 1
2. How to calculate the greatest common divisor of 387, 891, 164, 647?
We can find the highest common divisor of 387, 891, 164, 647 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 387, 891, 164, 647 i.e 1.
3. How can I use the GCD of 387, 891, 164, 647Calculator?
Out the numbers 387, 891, 164, 647 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.