Online GCD Calculator is useful to find the GCD of 990, 489, 947, 978 quickly. Get the easiest ways to solve the greatest common divisor of 990, 489, 947, 978 i.e 1 in different methods as follows.
Given Input numbers are 990, 489, 947, 978
In the factoring method, we have to find the divisors of all numbers
Divisors of 990 :
The positive integer divisors of 990 that completely divides 990 are.
1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
Divisors of 489 :
The positive integer divisors of 489 that completely divides 489 are.
1, 3, 163, 489
Divisors of 947 :
The positive integer divisors of 947 that completely divides 947 are.
1, 947
Divisors of 978 :
The positive integer divisors of 978 that completely divides 978 are.
1, 2, 3, 6, 163, 326, 489, 978
GCD of numbers is the greatest common divisor
So, the GCD (990, 489, 947, 978) = 1.
Given numbers are 990, 489, 947, 978
The list of prime factors of all numbers are
Prime factors of 990 are 2 x 3 x 3 x 5 x 11
Prime factors of 489 are 3 x 163
Prime factors of 947 are 947
Prime factors of 978 are 2 x 3 x 163
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 990, 489, 947, 978
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(990, 489) = 161370
GCD(990, 489) = ( 990 x 489 ) / 161370
= 990 / 489
= 990
Step2:
LCM(3, 947) = 2841
GCD(3, 947) = ( 3 x 947 ) / 2841
= 3 / 947
= 3
Step3:
LCM(1, 978) = 978
GCD(1, 978) = ( 1 x 978 ) / 978
= 1 / 978
= 1
So, Greatest Common Divisor of 990, 489, 947, 978 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 990, 489, 947, 978
The greatest common divisor of numbers 990, 489, 947, 978 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 990, 489, 947, 978 is 1.
1. What is the GCD of 990, 489, 947, 978?
GCD of given numbers 990, 489, 947, 978 is 1
2. How to calculate the greatest common divisor of 990, 489, 947, 978?
We can find the highest common divisor of 990, 489, 947, 978 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 990, 489, 947, 978 i.e 1.
3. How can I use the GCD of 990, 489, 947, 978Calculator?
Out the numbers 990, 489, 947, 978 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.