Online GCD Calculator is useful to find the GCD of 397, 189, 180 quickly. Get the easiest ways to solve the greatest common divisor of 397, 189, 180 i.e 1 in different methods as follows.
Given Input numbers are 397, 189, 180
In the factoring method, we have to find the divisors of all numbers
Divisors of 397 :
The positive integer divisors of 397 that completely divides 397 are.
1, 397
Divisors of 189 :
The positive integer divisors of 189 that completely divides 189 are.
1, 3, 7, 9, 21, 27, 63, 189
Divisors of 180 :
The positive integer divisors of 180 that completely divides 180 are.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
GCD of numbers is the greatest common divisor
So, the GCD (397, 189, 180) = 1.
Given numbers are 397, 189, 180
The list of prime factors of all numbers are
Prime factors of 397 are 397
Prime factors of 189 are 3 x 3 x 3 x 7
Prime factors of 180 are 2 x 2 x 3 x 3 x 5
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 397, 189, 180
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(397, 189) = 75033
GCD(397, 189) = ( 397 x 189 ) / 75033
= 397 / 189
= 397
Step2:
LCM(1, 180) = 180
GCD(1, 180) = ( 1 x 180 ) / 180
= 1 / 180
= 1
So, Greatest Common Divisor of 397, 189, 180 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 397, 189, 180
The greatest common divisor of numbers 397, 189, 180 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 397, 189, 180 is 1.
1. What is the GCD of 397, 189, 180?
GCD of given numbers 397, 189, 180 is 1
2. How to calculate the greatest common divisor of 397, 189, 180?
We can find the highest common divisor of 397, 189, 180 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 397, 189, 180 i.e 1.
3. How can I use the GCD of 397, 189, 180Calculator?
Out the numbers 397, 189, 180 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.