Online GCD Calculator is useful to find the GCD of 189, 639, 423, 841 quickly. Get the easiest ways to solve the greatest common divisor of 189, 639, 423, 841 i.e 1 in different methods as follows.
Given Input numbers are 189, 639, 423, 841
In the factoring method, we have to find the divisors of all numbers
Divisors of 189 :
The positive integer divisors of 189 that completely divides 189 are.
1, 3, 7, 9, 21, 27, 63, 189
Divisors of 639 :
The positive integer divisors of 639 that completely divides 639 are.
1, 3, 9, 71, 213, 639
Divisors of 423 :
The positive integer divisors of 423 that completely divides 423 are.
1, 3, 9, 47, 141, 423
Divisors of 841 :
The positive integer divisors of 841 that completely divides 841 are.
1, 29, 841
GCD of numbers is the greatest common divisor
So, the GCD (189, 639, 423, 841) = 1.
Given numbers are 189, 639, 423, 841
The list of prime factors of all numbers are
Prime factors of 189 are 3 x 3 x 3 x 7
Prime factors of 639 are 3 x 3 x 71
Prime factors of 423 are 3 x 3 x 47
Prime factors of 841 are 29 x 29
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 189, 639, 423, 841
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(189, 639) = 13419
GCD(189, 639) = ( 189 x 639 ) / 13419
= 189 / 639
= 189
Step2:
LCM(9, 423) = 423
GCD(9, 423) = ( 9 x 423 ) / 423
= 9 / 423
= 9
Step3:
LCM(9, 841) = 7569
GCD(9, 841) = ( 9 x 841 ) / 7569
= 9 / 841
= 9
So, Greatest Common Divisor of 189, 639, 423, 841 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 189, 639, 423, 841
The greatest common divisor of numbers 189, 639, 423, 841 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 189, 639, 423, 841 is 1.
1. What is the GCD of 189, 639, 423, 841?
GCD of given numbers 189, 639, 423, 841 is 1
2. How to calculate the greatest common divisor of 189, 639, 423, 841?
We can find the highest common divisor of 189, 639, 423, 841 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 189, 639, 423, 841 i.e 1.
3. How can I use the GCD of 189, 639, 423, 841Calculator?
Out the numbers 189, 639, 423, 841 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.