Online GCD Calculator is useful to find the GCD of 428, 388, 617, 681 quickly. Get the easiest ways to solve the greatest common divisor of 428, 388, 617, 681 i.e 1 in different methods as follows.
Given Input numbers are 428, 388, 617, 681
In the factoring method, we have to find the divisors of all numbers
Divisors of 428 :
The positive integer divisors of 428 that completely divides 428 are.
1, 2, 4, 107, 214, 428
Divisors of 388 :
The positive integer divisors of 388 that completely divides 388 are.
1, 2, 4, 97, 194, 388
Divisors of 617 :
The positive integer divisors of 617 that completely divides 617 are.
1, 617
Divisors of 681 :
The positive integer divisors of 681 that completely divides 681 are.
1, 3, 227, 681
GCD of numbers is the greatest common divisor
So, the GCD (428, 388, 617, 681) = 1.
Given numbers are 428, 388, 617, 681
The list of prime factors of all numbers are
Prime factors of 428 are 2 x 2 x 107
Prime factors of 388 are 2 x 2 x 97
Prime factors of 617 are 617
Prime factors of 681 are 3 x 227
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 428, 388, 617, 681
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(428, 388) = 41516
GCD(428, 388) = ( 428 x 388 ) / 41516
= 428 / 388
= 428
Step2:
LCM(4, 617) = 2468
GCD(4, 617) = ( 4 x 617 ) / 2468
= 4 / 617
= 4
Step3:
LCM(1, 681) = 681
GCD(1, 681) = ( 1 x 681 ) / 681
= 1 / 681
= 1
So, Greatest Common Divisor of 428, 388, 617, 681 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 428, 388, 617, 681
The greatest common divisor of numbers 428, 388, 617, 681 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 388, 617, 681 is 1.
1. What is the GCD of 428, 388, 617, 681?
GCD of given numbers 428, 388, 617, 681 is 1
2. How to calculate the greatest common divisor of 428, 388, 617, 681?
We can find the highest common divisor of 428, 388, 617, 681 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 428, 388, 617, 681 i.e 1.
3. How can I use the GCD of 428, 388, 617, 681Calculator?
Out the numbers 428, 388, 617, 681 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.