Online GCD Calculator is useful to find the GCD of 378, 122, 817, 638 quickly. Get the easiest ways to solve the greatest common divisor of 378, 122, 817, 638 i.e 1 in different methods as follows.
Given Input numbers are 378, 122, 817, 638
In the factoring method, we have to find the divisors of all numbers
Divisors of 378 :
The positive integer divisors of 378 that completely divides 378 are.
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
Divisors of 122 :
The positive integer divisors of 122 that completely divides 122 are.
1, 2, 61, 122
Divisors of 817 :
The positive integer divisors of 817 that completely divides 817 are.
1, 19, 43, 817
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
GCD of numbers is the greatest common divisor
So, the GCD (378, 122, 817, 638) = 1.
Given numbers are 378, 122, 817, 638
The list of prime factors of all numbers are
Prime factors of 378 are 2 x 3 x 3 x 3 x 7
Prime factors of 122 are 2 x 61
Prime factors of 817 are 19 x 43
Prime factors of 638 are 2 x 11 x 29
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 378, 122, 817, 638
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(378, 122) = 23058
GCD(378, 122) = ( 378 x 122 ) / 23058
= 378 / 122
= 378
Step2:
LCM(2, 817) = 1634
GCD(2, 817) = ( 2 x 817 ) / 1634
= 2 / 817
= 2
Step3:
LCM(1, 638) = 638
GCD(1, 638) = ( 1 x 638 ) / 638
= 1 / 638
= 1
So, Greatest Common Divisor of 378, 122, 817, 638 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 378, 122, 817, 638
The greatest common divisor of numbers 378, 122, 817, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 378, 122, 817, 638 is 1.
1. What is the GCD of 378, 122, 817, 638?
GCD of given numbers 378, 122, 817, 638 is 1
2. How to calculate the greatest common divisor of 378, 122, 817, 638?
We can find the highest common divisor of 378, 122, 817, 638 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 378, 122, 817, 638 i.e 1.
3. How can I use the GCD of 378, 122, 817, 638Calculator?
Out the numbers 378, 122, 817, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.