Online GCD Calculator is useful to find the GCD of 489, 344, 802, 391 quickly. Get the easiest ways to solve the greatest common divisor of 489, 344, 802, 391 i.e 1 in different methods as follows.
Given Input numbers are 489, 344, 802, 391
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 344 :
The positive integer divisors of 344 that completely divides 344 are.
1, 2, 4, 8, 43, 86, 172, 344
Divisors of 802 :
The positive integer divisors of 802 that completely divides 802 are.
1, 2, 401, 802
Divisors of 391 :
The positive integer divisors of 391 that completely divides 391 are.
1, 17, 23, 391
GCD of numbers is the greatest common divisor
So, the GCD (489, 344, 802, 391) = 1.
Given numbers are 489, 344, 802, 391
The list of prime factors of all numbers are
Prime factors of 489 are 3 x 163
Prime factors of 344 are 2 x 2 x 2 x 43
Prime factors of 802 are 2 x 401
Prime factors of 391 are 17 x 23
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 489, 344, 802, 391
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(489, 344) = 168216
GCD(489, 344) = ( 489 x 344 ) / 168216
= 489 / 344
= 489
Step2:
LCM(1, 802) = 802
GCD(1, 802) = ( 1 x 802 ) / 802
= 1 / 802
= 1
Step3:
LCM(1, 391) = 391
GCD(1, 391) = ( 1 x 391 ) / 391
= 1 / 391
= 1
So, Greatest Common Divisor of 489, 344, 802, 391 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 489, 344, 802, 391
The greatest common divisor of numbers 489, 344, 802, 391 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 489, 344, 802, 391 is 1.
1. What is the GCD of 489, 344, 802, 391?
GCD of given numbers 489, 344, 802, 391 is 1
2. How to calculate the greatest common divisor of 489, 344, 802, 391?
We can find the highest common divisor of 489, 344, 802, 391 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, 344, 802, 391 i.e 1.
3. How can I use the GCD of 489, 344, 802, 391Calculator?
Out the numbers 489, 344, 802, 391 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.