Online GCD Calculator is useful to find the GCD of 438, 789, 656, 669 quickly. Get the easiest ways to solve the greatest common divisor of 438, 789, 656, 669 i.e 1 in different methods as follows.
Given Input numbers are 438, 789, 656, 669
In the factoring method, we have to find the divisors of all numbers
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
Divisors of 789 :
The positive integer divisors of 789 that completely divides 789 are.
1, 3, 263, 789
Divisors of 656 :
The positive integer divisors of 656 that completely divides 656 are.
1, 2, 4, 8, 16, 41, 82, 164, 328, 656
Divisors of 669 :
The positive integer divisors of 669 that completely divides 669 are.
1, 3, 223, 669
GCD of numbers is the greatest common divisor
So, the GCD (438, 789, 656, 669) = 1.
Given numbers are 438, 789, 656, 669
The list of prime factors of all numbers are
Prime factors of 438 are 2 x 3 x 73
Prime factors of 789 are 3 x 263
Prime factors of 656 are 2 x 2 x 2 x 2 x 41
Prime factors of 669 are 3 x 223
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 438, 789, 656, 669
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(438, 789) = 115194
GCD(438, 789) = ( 438 x 789 ) / 115194
= 438 / 789
= 438
Step2:
LCM(3, 656) = 1968
GCD(3, 656) = ( 3 x 656 ) / 1968
= 3 / 656
= 3
Step3:
LCM(1, 669) = 669
GCD(1, 669) = ( 1 x 669 ) / 669
= 1 / 669
= 1
So, Greatest Common Divisor of 438, 789, 656, 669 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 438, 789, 656, 669
The greatest common divisor of numbers 438, 789, 656, 669 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 789, 656, 669 is 1.
1. What is the GCD of 438, 789, 656, 669?
GCD of given numbers 438, 789, 656, 669 is 1
2. How to calculate the greatest common divisor of 438, 789, 656, 669?
We can find the highest common divisor of 438, 789, 656, 669 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 438, 789, 656, 669 i.e 1.
3. How can I use the GCD of 438, 789, 656, 669Calculator?
Out the numbers 438, 789, 656, 669 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.