Online GCD Calculator is useful to find the GCD of 666, 656, 64, 138 quickly. Get the easiest ways to solve the greatest common divisor of 666, 656, 64, 138 i.e 2 in different methods as follows.
Given Input numbers are 666, 656, 64, 138
In the factoring method, we have to find the divisors of all numbers
Divisors of 666 :
The positive integer divisors of 666 that completely divides 666 are.
1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666
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 64 :
The positive integer divisors of 64 that completely divides 64 are.
1, 2, 4, 8, 16, 32, 64
Divisors of 138 :
The positive integer divisors of 138 that completely divides 138 are.
1, 2, 3, 6, 23, 46, 69, 138
GCD of numbers is the greatest common divisor
So, the GCD (666, 656, 64, 138) = 2.
Given numbers are 666, 656, 64, 138
The list of prime factors of all numbers are
Prime factors of 666 are 2 x 3 x 3 x 37
Prime factors of 656 are 2 x 2 x 2 x 2 x 41
Prime factors of 64 are 2 x 2 x 2 x 2 x 2 x 2
Prime factors of 138 are 2 x 3 x 23
The highest common occurrence is 21
Therefore, GCD of 666, 656, 64, 138 is 2.
Given numbers are 666, 656, 64, 138
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(666, 656) = 218448
GCD(666, 656) = ( 666 x 656 ) / 218448
= 666 / 656
= 666
Step2:
LCM(2, 64) = 64
GCD(2, 64) = ( 2 x 64 ) / 64
= 2 / 64
= 2
Step3:
LCM(2, 138) = 138
GCD(2, 138) = ( 2 x 138 ) / 138
= 2 / 138
= 2
So, Greatest Common Divisor of 666, 656, 64, 138 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 666, 656, 64, 138
The greatest common divisor of numbers 666, 656, 64, 138 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 666, 656, 64, 138 is 2.
1. What is the GCD of 666, 656, 64, 138?
GCD of given numbers 666, 656, 64, 138 is 2
2. How to calculate the greatest common divisor of 666, 656, 64, 138?
We can find the highest common divisor of 666, 656, 64, 138 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 666, 656, 64, 138 i.e 2.
3. How can I use the GCD of 666, 656, 64, 138Calculator?
Out the numbers 666, 656, 64, 138 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.