Online GCD Calculator is useful to find the GCD of 938, 668, 812, 640 quickly. Get the easiest ways to solve the greatest common divisor of 938, 668, 812, 640 i.e 2 in different methods as follows.
Given Input numbers are 938, 668, 812, 640
In the factoring method, we have to find the divisors of all numbers
Divisors of 938 :
The positive integer divisors of 938 that completely divides 938 are.
1, 2, 7, 14, 67, 134, 469, 938
Divisors of 668 :
The positive integer divisors of 668 that completely divides 668 are.
1, 2, 4, 167, 334, 668
Divisors of 812 :
The positive integer divisors of 812 that completely divides 812 are.
1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812
Divisors of 640 :
The positive integer divisors of 640 that completely divides 640 are.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
GCD of numbers is the greatest common divisor
So, the GCD (938, 668, 812, 640) = 2.
Given numbers are 938, 668, 812, 640
The list of prime factors of all numbers are
Prime factors of 938 are 2 x 7 x 67
Prime factors of 668 are 2 x 2 x 167
Prime factors of 812 are 2 x 2 x 7 x 29
Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5
The highest common occurrence is 21
Therefore, GCD of 938, 668, 812, 640 is 2.
Given numbers are 938, 668, 812, 640
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(938, 668) = 313292
GCD(938, 668) = ( 938 x 668 ) / 313292
= 938 / 668
= 938
Step2:
LCM(2, 812) = 812
GCD(2, 812) = ( 2 x 812 ) / 812
= 2 / 812
= 2
Step3:
LCM(2, 640) = 640
GCD(2, 640) = ( 2 x 640 ) / 640
= 2 / 640
= 2
So, Greatest Common Divisor of 938, 668, 812, 640 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 938, 668, 812, 640
The greatest common divisor of numbers 938, 668, 812, 640 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 938, 668, 812, 640 is 2.
1. What is the GCD of 938, 668, 812, 640?
GCD of given numbers 938, 668, 812, 640 is 2
2. How to calculate the greatest common divisor of 938, 668, 812, 640?
We can find the highest common divisor of 938, 668, 812, 640 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 938, 668, 812, 640 i.e 2.
3. How can I use the GCD of 938, 668, 812, 640Calculator?
Out the numbers 938, 668, 812, 640 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.