Online GCD Calculator is useful to find the GCD of 168, 495, 638, 855 quickly. Get the easiest ways to solve the greatest common divisor of 168, 495, 638, 855 i.e 1 in different methods as follows.
Given Input numbers are 168, 495, 638, 855
In the factoring method, we have to find the divisors of all numbers
Divisors of 168 :
The positive integer divisors of 168 that completely divides 168 are.
1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
Divisors of 495 :
The positive integer divisors of 495 that completely divides 495 are.
1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
Divisors of 855 :
The positive integer divisors of 855 that completely divides 855 are.
1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
GCD of numbers is the greatest common divisor
So, the GCD (168, 495, 638, 855) = 1.
Given numbers are 168, 495, 638, 855
The list of prime factors of all numbers are
Prime factors of 168 are 2 x 2 x 2 x 3 x 7
Prime factors of 495 are 3 x 3 x 5 x 11
Prime factors of 638 are 2 x 11 x 29
Prime factors of 855 are 3 x 3 x 5 x 19
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 168, 495, 638, 855
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(168, 495) = 27720
GCD(168, 495) = ( 168 x 495 ) / 27720
= 168 / 495
= 168
Step2:
LCM(3, 638) = 1914
GCD(3, 638) = ( 3 x 638 ) / 1914
= 3 / 638
= 3
Step3:
LCM(1, 855) = 855
GCD(1, 855) = ( 1 x 855 ) / 855
= 1 / 855
= 1
So, Greatest Common Divisor of 168, 495, 638, 855 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 168, 495, 638, 855
The greatest common divisor of numbers 168, 495, 638, 855 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 168, 495, 638, 855 is 1.
1. What is the GCD of 168, 495, 638, 855?
GCD of given numbers 168, 495, 638, 855 is 1
2. How to calculate the greatest common divisor of 168, 495, 638, 855?
We can find the highest common divisor of 168, 495, 638, 855 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 168, 495, 638, 855 i.e 1.
3. How can I use the GCD of 168, 495, 638, 855Calculator?
Out the numbers 168, 495, 638, 855 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.