Online GCD Calculator is useful to find the GCD of 168, 420, 967, 644 quickly. Get the easiest ways to solve the greatest common divisor of 168, 420, 967, 644 i.e 1 in different methods as follows.
Given Input numbers are 168, 420, 967, 644
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 420 :
The positive integer divisors of 420 that completely divides 420 are.
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
Divisors of 967 :
The positive integer divisors of 967 that completely divides 967 are.
1, 967
Divisors of 644 :
The positive integer divisors of 644 that completely divides 644 are.
1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
GCD of numbers is the greatest common divisor
So, the GCD (168, 420, 967, 644) = 1.
Given numbers are 168, 420, 967, 644
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 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 967 are 967
Prime factors of 644 are 2 x 2 x 7 x 23
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 168, 420, 967, 644
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(168, 420) = 840
GCD(168, 420) = ( 168 x 420 ) / 840
= 168 / 420
= 168
Step2:
LCM(84, 967) = 81228
GCD(84, 967) = ( 84 x 967 ) / 81228
= 84 / 967
= 84
Step3:
LCM(1, 644) = 644
GCD(1, 644) = ( 1 x 644 ) / 644
= 1 / 644
= 1
So, Greatest Common Divisor of 168, 420, 967, 644 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 168, 420, 967, 644
The greatest common divisor of numbers 168, 420, 967, 644 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 168, 420, 967, 644 is 1.
1. What is the GCD of 168, 420, 967, 644?
GCD of given numbers 168, 420, 967, 644 is 1
2. How to calculate the greatest common divisor of 168, 420, 967, 644?
We can find the highest common divisor of 168, 420, 967, 644 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, 420, 967, 644 i.e 1.
3. How can I use the GCD of 168, 420, 967, 644Calculator?
Out the numbers 168, 420, 967, 644 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.