Online GCD Calculator is useful to find the GCD of 489, 391, 324, 813 quickly. Get the easiest ways to solve the greatest common divisor of 489, 391, 324, 813 i.e 1 in different methods as follows.
Given Input numbers are 489, 391, 324, 813
In the factoring method, we have to find the divisors of all numbers
Divisors of 489 :
The positive integer divisors of 489 that completely divides 489 are.
1, 3, 163, 489
Divisors of 391 :
The positive integer divisors of 391 that completely divides 391 are.
1, 17, 23, 391
Divisors of 324 :
The positive integer divisors of 324 that completely divides 324 are.
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
Divisors of 813 :
The positive integer divisors of 813 that completely divides 813 are.
1, 3, 271, 813
GCD of numbers is the greatest common divisor
So, the GCD (489, 391, 324, 813) = 1.
Given numbers are 489, 391, 324, 813
The list of prime factors of all numbers are
Prime factors of 489 are 3 x 163
Prime factors of 391 are 17 x 23
Prime factors of 324 are 2 x 2 x 3 x 3 x 3 x 3
Prime factors of 813 are 3 x 271
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 489, 391, 324, 813
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(489, 391) = 191199
GCD(489, 391) = ( 489 x 391 ) / 191199
= 489 / 391
= 489
Step2:
LCM(1, 324) = 324
GCD(1, 324) = ( 1 x 324 ) / 324
= 1 / 324
= 1
Step3:
LCM(1, 813) = 813
GCD(1, 813) = ( 1 x 813 ) / 813
= 1 / 813
= 1
So, Greatest Common Divisor of 489, 391, 324, 813 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 489, 391, 324, 813
The greatest common divisor of numbers 489, 391, 324, 813 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 489, 391, 324, 813 is 1.
1. What is the GCD of 489, 391, 324, 813?
GCD of given numbers 489, 391, 324, 813 is 1
2. How to calculate the greatest common divisor of 489, 391, 324, 813?
We can find the highest common divisor of 489, 391, 324, 813 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 489, 391, 324, 813 i.e 1.
3. How can I use the GCD of 489, 391, 324, 813Calculator?
Out the numbers 489, 391, 324, 813 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.