Online GCD Calculator is useful to find the GCD of 645, 672, 668, 626 quickly. Get the easiest ways to solve the greatest common divisor of 645, 672, 668, 626 i.e 1 in different methods as follows.
Given Input numbers are 645, 672, 668, 626
In the factoring method, we have to find the divisors of all numbers
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
Divisors of 672 :
The positive integer divisors of 672 that completely divides 672 are.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
Divisors of 668 :
The positive integer divisors of 668 that completely divides 668 are.
1, 2, 4, 167, 334, 668
Divisors of 626 :
The positive integer divisors of 626 that completely divides 626 are.
1, 2, 313, 626
GCD of numbers is the greatest common divisor
So, the GCD (645, 672, 668, 626) = 1.
Given numbers are 645, 672, 668, 626
The list of prime factors of all numbers are
Prime factors of 645 are 3 x 5 x 43
Prime factors of 672 are 2 x 2 x 2 x 2 x 2 x 3 x 7
Prime factors of 668 are 2 x 2 x 167
Prime factors of 626 are 2 x 313
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 645, 672, 668, 626
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(645, 672) = 144480
GCD(645, 672) = ( 645 x 672 ) / 144480
= 645 / 672
= 645
Step2:
LCM(3, 668) = 2004
GCD(3, 668) = ( 3 x 668 ) / 2004
= 3 / 668
= 3
Step3:
LCM(1, 626) = 626
GCD(1, 626) = ( 1 x 626 ) / 626
= 1 / 626
= 1
So, Greatest Common Divisor of 645, 672, 668, 626 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 645, 672, 668, 626
The greatest common divisor of numbers 645, 672, 668, 626 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 672, 668, 626 is 1.
1. What is the GCD of 645, 672, 668, 626?
GCD of given numbers 645, 672, 668, 626 is 1
2. How to calculate the greatest common divisor of 645, 672, 668, 626?
We can find the highest common divisor of 645, 672, 668, 626 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 645, 672, 668, 626 i.e 1.
3. How can I use the GCD of 645, 672, 668, 626Calculator?
Out the numbers 645, 672, 668, 626 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.