Online GCD Calculator is useful to find the GCD of 978, 147, 18, 440 quickly. Get the easiest ways to solve the greatest common divisor of 978, 147, 18, 440 i.e 1 in different methods as follows.
Given Input numbers are 978, 147, 18, 440
In the factoring method, we have to find the divisors of all numbers
Divisors of 978 :
The positive integer divisors of 978 that completely divides 978 are.
1, 2, 3, 6, 163, 326, 489, 978
Divisors of 147 :
The positive integer divisors of 147 that completely divides 147 are.
1, 3, 7, 21, 49, 147
Divisors of 18 :
The positive integer divisors of 18 that completely divides 18 are.
1, 2, 3, 6, 9, 18
Divisors of 440 :
The positive integer divisors of 440 that completely divides 440 are.
1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
GCD of numbers is the greatest common divisor
So, the GCD (978, 147, 18, 440) = 1.
Given numbers are 978, 147, 18, 440
The list of prime factors of all numbers are
Prime factors of 978 are 2 x 3 x 163
Prime factors of 147 are 3 x 7 x 7
Prime factors of 18 are 2 x 3 x 3
Prime factors of 440 are 2 x 2 x 2 x 5 x 11
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 978, 147, 18, 440
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(978, 147) = 47922
GCD(978, 147) = ( 978 x 147 ) / 47922
= 978 / 147
= 978
Step2:
LCM(3, 18) = 18
GCD(3, 18) = ( 3 x 18 ) / 18
= 3 / 18
= 3
Step3:
LCM(3, 440) = 1320
GCD(3, 440) = ( 3 x 440 ) / 1320
= 3 / 440
= 3
So, Greatest Common Divisor of 978, 147, 18, 440 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 978, 147, 18, 440
The greatest common divisor of numbers 978, 147, 18, 440 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 978, 147, 18, 440 is 1.
1. What is the GCD of 978, 147, 18, 440?
GCD of given numbers 978, 147, 18, 440 is 1
2. How to calculate the greatest common divisor of 978, 147, 18, 440?
We can find the highest common divisor of 978, 147, 18, 440 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 978, 147, 18, 440 i.e 1.
3. How can I use the GCD of 978, 147, 18, 440Calculator?
Out the numbers 978, 147, 18, 440 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.