Online GCD Calculator is useful to find the GCD of 990, 397, 638, 669 quickly. Get the easiest ways to solve the greatest common divisor of 990, 397, 638, 669 i.e 1 in different methods as follows.
Given Input numbers are 990, 397, 638, 669
In the factoring method, we have to find the divisors of all numbers
Divisors of 990 :
The positive integer divisors of 990 that completely divides 990 are.
1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
Divisors of 397 :
The positive integer divisors of 397 that completely divides 397 are.
1, 397
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
Divisors of 669 :
The positive integer divisors of 669 that completely divides 669 are.
1, 3, 223, 669
GCD of numbers is the greatest common divisor
So, the GCD (990, 397, 638, 669) = 1.
Given numbers are 990, 397, 638, 669
The list of prime factors of all numbers are
Prime factors of 990 are 2 x 3 x 3 x 5 x 11
Prime factors of 397 are 397
Prime factors of 638 are 2 x 11 x 29
Prime factors of 669 are 3 x 223
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 990, 397, 638, 669
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(990, 397) = 393030
GCD(990, 397) = ( 990 x 397 ) / 393030
= 990 / 397
= 990
Step2:
LCM(1, 638) = 638
GCD(1, 638) = ( 1 x 638 ) / 638
= 1 / 638
= 1
Step3:
LCM(1, 669) = 669
GCD(1, 669) = ( 1 x 669 ) / 669
= 1 / 669
= 1
So, Greatest Common Divisor of 990, 397, 638, 669 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 990, 397, 638, 669
The greatest common divisor of numbers 990, 397, 638, 669 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 990, 397, 638, 669 is 1.
1. What is the GCD of 990, 397, 638, 669?
GCD of given numbers 990, 397, 638, 669 is 1
2. How to calculate the greatest common divisor of 990, 397, 638, 669?
We can find the highest common divisor of 990, 397, 638, 669 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 990, 397, 638, 669 i.e 1.
3. How can I use the GCD of 990, 397, 638, 669Calculator?
Out the numbers 990, 397, 638, 669 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.