Online GCD Calculator is useful to find the GCD of 398, 558, 320, 985 quickly. Get the easiest ways to solve the greatest common divisor of 398, 558, 320, 985 i.e 1 in different methods as follows.
Given Input numbers are 398, 558, 320, 985
In the factoring method, we have to find the divisors of all numbers
Divisors of 398 :
The positive integer divisors of 398 that completely divides 398 are.
1, 2, 199, 398
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 320 :
The positive integer divisors of 320 that completely divides 320 are.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
Divisors of 985 :
The positive integer divisors of 985 that completely divides 985 are.
1, 5, 197, 985
GCD of numbers is the greatest common divisor
So, the GCD (398, 558, 320, 985) = 1.
Given numbers are 398, 558, 320, 985
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 558 are 2 x 3 x 3 x 31
Prime factors of 320 are 2 x 2 x 2 x 2 x 2 x 2 x 5
Prime factors of 985 are 5 x 197
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 398, 558, 320, 985
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 558) = 111042
GCD(398, 558) = ( 398 x 558 ) / 111042
= 398 / 558
= 398
Step2:
LCM(2, 320) = 320
GCD(2, 320) = ( 2 x 320 ) / 320
= 2 / 320
= 2
Step3:
LCM(2, 985) = 1970
GCD(2, 985) = ( 2 x 985 ) / 1970
= 2 / 985
= 2
So, Greatest Common Divisor of 398, 558, 320, 985 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 558, 320, 985
The greatest common divisor of numbers 398, 558, 320, 985 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 558, 320, 985 is 1.
1. What is the GCD of 398, 558, 320, 985?
GCD of given numbers 398, 558, 320, 985 is 1
2. How to calculate the greatest common divisor of 398, 558, 320, 985?
We can find the highest common divisor of 398, 558, 320, 985 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 398, 558, 320, 985 i.e 1.
3. How can I use the GCD of 398, 558, 320, 985Calculator?
Out the numbers 398, 558, 320, 985 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.