Online GCD Calculator is useful to find the GCD of 808, 123, 220, 638 quickly. Get the easiest ways to solve the greatest common divisor of 808, 123, 220, 638 i.e 1 in different methods as follows.
Given Input numbers are 808, 123, 220, 638
In the factoring method, we have to find the divisors of all numbers
Divisors of 808 :
The positive integer divisors of 808 that completely divides 808 are.
1, 2, 4, 8, 101, 202, 404, 808
Divisors of 123 :
The positive integer divisors of 123 that completely divides 123 are.
1, 3, 41, 123
Divisors of 220 :
The positive integer divisors of 220 that completely divides 220 are.
1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
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 (808, 123, 220, 638) = 1.
Given numbers are 808, 123, 220, 638
The list of prime factors of all numbers are
Prime factors of 808 are 2 x 2 x 2 x 101
Prime factors of 123 are 3 x 41
Prime factors of 220 are 2 x 2 x 5 x 11
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 808, 123, 220, 638
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(808, 123) = 99384
GCD(808, 123) = ( 808 x 123 ) / 99384
= 808 / 123
= 808
Step2:
LCM(1, 220) = 220
GCD(1, 220) = ( 1 x 220 ) / 220
= 1 / 220
= 1
Step3:
LCM(1, 638) = 638
GCD(1, 638) = ( 1 x 638 ) / 638
= 1 / 638
= 1
So, Greatest Common Divisor of 808, 123, 220, 638 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 808, 123, 220, 638
The greatest common divisor of numbers 808, 123, 220, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 808, 123, 220, 638 is 1.
1. What is the GCD of 808, 123, 220, 638?
GCD of given numbers 808, 123, 220, 638 is 1
2. How to calculate the greatest common divisor of 808, 123, 220, 638?
We can find the highest common divisor of 808, 123, 220, 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 808, 123, 220, 638 i.e 1.
3. How can I use the GCD of 808, 123, 220, 638Calculator?
Out the numbers 808, 123, 220, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.