Online GCD Calculator is useful to find the GCD of 987, 384, 845, 638 quickly. Get the easiest ways to solve the greatest common divisor of 987, 384, 845, 638 i.e 1 in different methods as follows.
Given Input numbers are 987, 384, 845, 638
In the factoring method, we have to find the divisors of all numbers
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
Divisors of 384 :
The positive integer divisors of 384 that completely divides 384 are.
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384
Divisors of 845 :
The positive integer divisors of 845 that completely divides 845 are.
1, 5, 13, 65, 169, 845
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
GCD of numbers is the greatest common divisor
So, the GCD (987, 384, 845, 638) = 1.
Given numbers are 987, 384, 845, 638
The list of prime factors of all numbers are
Prime factors of 987 are 3 x 7 x 47
Prime factors of 384 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3
Prime factors of 845 are 5 x 13 x 13
Prime factors of 638 are 2 x 11 x 29
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 987, 384, 845, 638
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(987, 384) = 126336
GCD(987, 384) = ( 987 x 384 ) / 126336
= 987 / 384
= 987
Step2:
LCM(3, 845) = 2535
GCD(3, 845) = ( 3 x 845 ) / 2535
= 3 / 845
= 3
Step3:
LCM(1, 638) = 638
GCD(1, 638) = ( 1 x 638 ) / 638
= 1 / 638
= 1
So, Greatest Common Divisor of 987, 384, 845, 638 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 987, 384, 845, 638
The greatest common divisor of numbers 987, 384, 845, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 987, 384, 845, 638 is 1.
1. What is the GCD of 987, 384, 845, 638?
GCD of given numbers 987, 384, 845, 638 is 1
2. How to calculate the greatest common divisor of 987, 384, 845, 638?
We can find the highest common divisor of 987, 384, 845, 638 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 987, 384, 845, 638 i.e 1.
3. How can I use the GCD of 987, 384, 845, 638Calculator?
Out the numbers 987, 384, 845, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.