Online GCD Calculator is useful to find the GCD of 198, 620, 861, 396 quickly. Get the easiest ways to solve the greatest common divisor of 198, 620, 861, 396 i.e 1 in different methods as follows.
Given Input numbers are 198, 620, 861, 396
In the factoring method, we have to find the divisors of all numbers
Divisors of 198 :
The positive integer divisors of 198 that completely divides 198 are.
1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
Divisors of 620 :
The positive integer divisors of 620 that completely divides 620 are.
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
Divisors of 396 :
The positive integer divisors of 396 that completely divides 396 are.
1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
GCD of numbers is the greatest common divisor
So, the GCD (198, 620, 861, 396) = 1.
Given numbers are 198, 620, 861, 396
The list of prime factors of all numbers are
Prime factors of 198 are 2 x 3 x 3 x 11
Prime factors of 620 are 2 x 2 x 5 x 31
Prime factors of 861 are 3 x 7 x 41
Prime factors of 396 are 2 x 2 x 3 x 3 x 11
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 198, 620, 861, 396
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(198, 620) = 61380
GCD(198, 620) = ( 198 x 620 ) / 61380
= 198 / 620
= 198
Step2:
LCM(2, 861) = 1722
GCD(2, 861) = ( 2 x 861 ) / 1722
= 2 / 861
= 2
Step3:
LCM(1, 396) = 396
GCD(1, 396) = ( 1 x 396 ) / 396
= 1 / 396
= 1
So, Greatest Common Divisor of 198, 620, 861, 396 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 198, 620, 861, 396
The greatest common divisor of numbers 198, 620, 861, 396 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 198, 620, 861, 396 is 1.
1. What is the GCD of 198, 620, 861, 396?
GCD of given numbers 198, 620, 861, 396 is 1
2. How to calculate the greatest common divisor of 198, 620, 861, 396?
We can find the highest common divisor of 198, 620, 861, 396 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 198, 620, 861, 396 i.e 1.
3. How can I use the GCD of 198, 620, 861, 396Calculator?
Out the numbers 198, 620, 861, 396 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.