Online GCD Calculator is useful to find the GCD of 389, 728, 399, 917 quickly. Get the easiest ways to solve the greatest common divisor of 389, 728, 399, 917 i.e 1 in different methods as follows.
Given Input numbers are 389, 728, 399, 917
In the factoring method, we have to find the divisors of all numbers
Divisors of 389 :
The positive integer divisors of 389 that completely divides 389 are.
1, 389
Divisors of 728 :
The positive integer divisors of 728 that completely divides 728 are.
1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
Divisors of 399 :
The positive integer divisors of 399 that completely divides 399 are.
1, 3, 7, 19, 21, 57, 133, 399
Divisors of 917 :
The positive integer divisors of 917 that completely divides 917 are.
1, 7, 131, 917
GCD of numbers is the greatest common divisor
So, the GCD (389, 728, 399, 917) = 1.
Given numbers are 389, 728, 399, 917
The list of prime factors of all numbers are
Prime factors of 389 are 389
Prime factors of 728 are 2 x 2 x 2 x 7 x 13
Prime factors of 399 are 3 x 7 x 19
Prime factors of 917 are 7 x 131
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 389, 728, 399, 917
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(389, 728) = 283192
GCD(389, 728) = ( 389 x 728 ) / 283192
= 389 / 728
= 389
Step2:
LCM(1, 399) = 399
GCD(1, 399) = ( 1 x 399 ) / 399
= 1 / 399
= 1
Step3:
LCM(1, 917) = 917
GCD(1, 917) = ( 1 x 917 ) / 917
= 1 / 917
= 1
So, Greatest Common Divisor of 389, 728, 399, 917 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 389, 728, 399, 917
The greatest common divisor of numbers 389, 728, 399, 917 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 389, 728, 399, 917 is 1.
1. What is the GCD of 389, 728, 399, 917?
GCD of given numbers 389, 728, 399, 917 is 1
2. How to calculate the greatest common divisor of 389, 728, 399, 917?
We can find the highest common divisor of 389, 728, 399, 917 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 389, 728, 399, 917 i.e 1.
3. How can I use the GCD of 389, 728, 399, 917Calculator?
Out the numbers 389, 728, 399, 917 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.