Online GCD Calculator is useful to find the GCD of 861, 697, 328, 438 quickly. Get the easiest ways to solve the greatest common divisor of 861, 697, 328, 438 i.e 1 in different methods as follows.
Given Input numbers are 861, 697, 328, 438
In the factoring method, we have to find the divisors of all numbers
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
Divisors of 697 :
The positive integer divisors of 697 that completely divides 697 are.
1, 17, 41, 697
Divisors of 328 :
The positive integer divisors of 328 that completely divides 328 are.
1, 2, 4, 8, 41, 82, 164, 328
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
GCD of numbers is the greatest common divisor
So, the GCD (861, 697, 328, 438) = 1.
Given numbers are 861, 697, 328, 438
The list of prime factors of all numbers are
Prime factors of 861 are 3 x 7 x 41
Prime factors of 697 are 17 x 41
Prime factors of 328 are 2 x 2 x 2 x 41
Prime factors of 438 are 2 x 3 x 73
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 861, 697, 328, 438
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(861, 697) = 14637
GCD(861, 697) = ( 861 x 697 ) / 14637
= 861 / 697
= 861
Step2:
LCM(41, 328) = 328
GCD(41, 328) = ( 41 x 328 ) / 328
= 41 / 328
= 41
Step3:
LCM(41, 438) = 17958
GCD(41, 438) = ( 41 x 438 ) / 17958
= 41 / 438
= 41
So, Greatest Common Divisor of 861, 697, 328, 438 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 861, 697, 328, 438
The greatest common divisor of numbers 861, 697, 328, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 697, 328, 438 is 1.
1. What is the GCD of 861, 697, 328, 438?
GCD of given numbers 861, 697, 328, 438 is 1
2. How to calculate the greatest common divisor of 861, 697, 328, 438?
We can find the highest common divisor of 861, 697, 328, 438 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 861, 697, 328, 438 i.e 1.
3. How can I use the GCD of 861, 697, 328, 438Calculator?
Out the numbers 861, 697, 328, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.