Online GCD Calculator is useful to find the GCD of 123, 818, 42 quickly. Get the easiest ways to solve the greatest common divisor of 123, 818, 42 i.e 1 in different methods as follows.
Given Input numbers are 123, 818, 42
In the factoring method, we have to find the divisors of all numbers
Divisors of 123 :
The positive integer divisors of 123 that completely divides 123 are.
1, 3, 41, 123
Divisors of 818 :
The positive integer divisors of 818 that completely divides 818 are.
1, 2, 409, 818
Divisors of 42 :
The positive integer divisors of 42 that completely divides 42 are.
1, 2, 3, 6, 7, 14, 21, 42
GCD of numbers is the greatest common divisor
So, the GCD (123, 818, 42) = 1.
Given numbers are 123, 818, 42
The list of prime factors of all numbers are
Prime factors of 123 are 3 x 41
Prime factors of 818 are 2 x 409
Prime factors of 42 are 2 x 3 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 123, 818, 42
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(123, 818) = 100614
GCD(123, 818) = ( 123 x 818 ) / 100614
= 123 / 818
= 123
Step2:
LCM(1, 42) = 42
GCD(1, 42) = ( 1 x 42 ) / 42
= 1 / 42
= 1
So, Greatest Common Divisor of 123, 818, 42 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 123, 818, 42
The greatest common divisor of numbers 123, 818, 42 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 818, 42 is 1.
1. What is the GCD of 123, 818, 42?
GCD of given numbers 123, 818, 42 is 1
2. How to calculate the greatest common divisor of 123, 818, 42?
We can find the highest common divisor of 123, 818, 42 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 123, 818, 42 i.e 1.
3. How can I use the GCD of 123, 818, 42Calculator?
Out the numbers 123, 818, 42 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.