Online GCD Calculator is useful to find the GCD of 778, 730, 748, 686 quickly. Get the easiest ways to solve the greatest common divisor of 778, 730, 748, 686 i.e 2 in different methods as follows.
Given Input numbers are 778, 730, 748, 686
In the factoring method, we have to find the divisors of all numbers
Divisors of 778 :
The positive integer divisors of 778 that completely divides 778 are.
1, 2, 389, 778
Divisors of 730 :
The positive integer divisors of 730 that completely divides 730 are.
1, 2, 5, 10, 73, 146, 365, 730
Divisors of 748 :
The positive integer divisors of 748 that completely divides 748 are.
1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
Divisors of 686 :
The positive integer divisors of 686 that completely divides 686 are.
1, 2, 7, 14, 49, 98, 343, 686
GCD of numbers is the greatest common divisor
So, the GCD (778, 730, 748, 686) = 2.
Given numbers are 778, 730, 748, 686
The list of prime factors of all numbers are
Prime factors of 778 are 2 x 389
Prime factors of 730 are 2 x 5 x 73
Prime factors of 748 are 2 x 2 x 11 x 17
Prime factors of 686 are 2 x 7 x 7 x 7
The highest common occurrence is 21
Therefore, GCD of 778, 730, 748, 686 is 2.
Given numbers are 778, 730, 748, 686
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(778, 730) = 283970
GCD(778, 730) = ( 778 x 730 ) / 283970
= 778 / 730
= 778
Step2:
LCM(2, 748) = 748
GCD(2, 748) = ( 2 x 748 ) / 748
= 2 / 748
= 2
Step3:
LCM(2, 686) = 686
GCD(2, 686) = ( 2 x 686 ) / 686
= 2 / 686
= 2
So, Greatest Common Divisor of 778, 730, 748, 686 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 778, 730, 748, 686
The greatest common divisor of numbers 778, 730, 748, 686 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 778, 730, 748, 686 is 2.
1. What is the GCD of 778, 730, 748, 686?
GCD of given numbers 778, 730, 748, 686 is 2
2. How to calculate the greatest common divisor of 778, 730, 748, 686?
We can find the highest common divisor of 778, 730, 748, 686 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 778, 730, 748, 686 i.e 2.
3. How can I use the GCD of 778, 730, 748, 686Calculator?
Out the numbers 778, 730, 748, 686 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.