Online GCD Calculator is useful to find the GCD of 788, 688, 666, 680 quickly. Get the easiest ways to solve the greatest common divisor of 788, 688, 666, 680 i.e 2 in different methods as follows.
Given Input numbers are 788, 688, 666, 680
In the factoring method, we have to find the divisors of all numbers
Divisors of 788 :
The positive integer divisors of 788 that completely divides 788 are.
1, 2, 4, 197, 394, 788
Divisors of 688 :
The positive integer divisors of 688 that completely divides 688 are.
1, 2, 4, 8, 16, 43, 86, 172, 344, 688
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 680 :
The positive integer divisors of 680 that completely divides 680 are.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
GCD of numbers is the greatest common divisor
So, the GCD (788, 688, 666, 680) = 2.
Given numbers are 788, 688, 666, 680
The list of prime factors of all numbers are
Prime factors of 788 are 2 x 2 x 197
Prime factors of 688 are 2 x 2 x 2 x 2 x 43
Prime factors of 666 are 2 x 3 x 3 x 37
Prime factors of 680 are 2 x 2 x 2 x 5 x 17
The highest common occurrence is 21
Therefore, GCD of 788, 688, 666, 680 is 2.
Given numbers are 788, 688, 666, 680
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(788, 688) = 135536
GCD(788, 688) = ( 788 x 688 ) / 135536
= 788 / 688
= 788
Step2:
LCM(4, 666) = 1332
GCD(4, 666) = ( 4 x 666 ) / 1332
= 4 / 666
= 4
Step3:
LCM(2, 680) = 680
GCD(2, 680) = ( 2 x 680 ) / 680
= 2 / 680
= 2
So, Greatest Common Divisor of 788, 688, 666, 680 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 788, 688, 666, 680
The greatest common divisor of numbers 788, 688, 666, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 788, 688, 666, 680 is 2.
1. What is the GCD of 788, 688, 666, 680?
GCD of given numbers 788, 688, 666, 680 is 2
2. How to calculate the greatest common divisor of 788, 688, 666, 680?
We can find the highest common divisor of 788, 688, 666, 680 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 788, 688, 666, 680 i.e 2.
3. How can I use the GCD of 788, 688, 666, 680Calculator?
Out the numbers 788, 688, 666, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.