Online GCD Calculator is useful to find the GCD of 639, 171, 380 quickly. Get the easiest ways to solve the greatest common divisor of 639, 171, 380 i.e 1 in different methods as follows.
Given Input numbers are 639, 171, 380
In the factoring method, we have to find the divisors of all numbers
Divisors of 639 :
The positive integer divisors of 639 that completely divides 639 are.
1, 3, 9, 71, 213, 639
Divisors of 171 :
The positive integer divisors of 171 that completely divides 171 are.
1, 3, 9, 19, 57, 171
Divisors of 380 :
The positive integer divisors of 380 that completely divides 380 are.
1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
GCD of numbers is the greatest common divisor
So, the GCD (639, 171, 380) = 1.
Given numbers are 639, 171, 380
The list of prime factors of all numbers are
Prime factors of 639 are 3 x 3 x 71
Prime factors of 171 are 3 x 3 x 19
Prime factors of 380 are 2 x 2 x 5 x 19
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 639, 171, 380
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(639, 171) = 12141
GCD(639, 171) = ( 639 x 171 ) / 12141
= 639 / 171
= 639
Step2:
LCM(9, 380) = 3420
GCD(9, 380) = ( 9 x 380 ) / 3420
= 9 / 380
= 9
So, Greatest Common Divisor of 639, 171, 380 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 639, 171, 380
The greatest common divisor of numbers 639, 171, 380 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 171, 380 is 1.
1. What is the GCD of 639, 171, 380?
GCD of given numbers 639, 171, 380 is 1
2. How to calculate the greatest common divisor of 639, 171, 380?
We can find the highest common divisor of 639, 171, 380 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 639, 171, 380 i.e 1.
3. How can I use the GCD of 639, 171, 380Calculator?
Out the numbers 639, 171, 380 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.