Online GCD Calculator is useful to find the GCD of 420, 823, 663, 422 quickly. Get the easiest ways to solve the greatest common divisor of 420, 823, 663, 422 i.e 1 in different methods as follows.
Given Input numbers are 420, 823, 663, 422
In the factoring method, we have to find the divisors of all numbers
Divisors of 420 :
The positive integer divisors of 420 that completely divides 420 are.
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
Divisors of 823 :
The positive integer divisors of 823 that completely divides 823 are.
1, 823
Divisors of 663 :
The positive integer divisors of 663 that completely divides 663 are.
1, 3, 13, 17, 39, 51, 221, 663
Divisors of 422 :
The positive integer divisors of 422 that completely divides 422 are.
1, 2, 211, 422
GCD of numbers is the greatest common divisor
So, the GCD (420, 823, 663, 422) = 1.
Given numbers are 420, 823, 663, 422
The list of prime factors of all numbers are
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 823 are 823
Prime factors of 663 are 3 x 13 x 17
Prime factors of 422 are 2 x 211
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 420, 823, 663, 422
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 823) = 345660
GCD(420, 823) = ( 420 x 823 ) / 345660
= 420 / 823
= 420
Step2:
LCM(1, 663) = 663
GCD(1, 663) = ( 1 x 663 ) / 663
= 1 / 663
= 1
Step3:
LCM(1, 422) = 422
GCD(1, 422) = ( 1 x 422 ) / 422
= 1 / 422
= 1
So, Greatest Common Divisor of 420, 823, 663, 422 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 823, 663, 422
The greatest common divisor of numbers 420, 823, 663, 422 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 823, 663, 422 is 1.
1. What is the GCD of 420, 823, 663, 422?
GCD of given numbers 420, 823, 663, 422 is 1
2. How to calculate the greatest common divisor of 420, 823, 663, 422?
We can find the highest common divisor of 420, 823, 663, 422 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 420, 823, 663, 422 i.e 1.
3. How can I use the GCD of 420, 823, 663, 422Calculator?
Out the numbers 420, 823, 663, 422 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.