Online GCD Calculator is useful to find the GCD of 385, 891, 663, 981 quickly. Get the easiest ways to solve the greatest common divisor of 385, 891, 663, 981 i.e 1 in different methods as follows.
Given Input numbers are 385, 891, 663, 981
In the factoring method, we have to find the divisors of all numbers
Divisors of 385 :
The positive integer divisors of 385 that completely divides 385 are.
1, 5, 7, 11, 35, 55, 77, 385
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
Divisors of 663 :
The positive integer divisors of 663 that completely divides 663 are.
1, 3, 13, 17, 39, 51, 221, 663
Divisors of 981 :
The positive integer divisors of 981 that completely divides 981 are.
1, 3, 9, 109, 327, 981
GCD of numbers is the greatest common divisor
So, the GCD (385, 891, 663, 981) = 1.
Given numbers are 385, 891, 663, 981
The list of prime factors of all numbers are
Prime factors of 385 are 5 x 7 x 11
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
Prime factors of 663 are 3 x 13 x 17
Prime factors of 981 are 3 x 3 x 109
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 385, 891, 663, 981
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(385, 891) = 31185
GCD(385, 891) = ( 385 x 891 ) / 31185
= 385 / 891
= 385
Step2:
LCM(11, 663) = 7293
GCD(11, 663) = ( 11 x 663 ) / 7293
= 11 / 663
= 11
Step3:
LCM(1, 981) = 981
GCD(1, 981) = ( 1 x 981 ) / 981
= 1 / 981
= 1
So, Greatest Common Divisor of 385, 891, 663, 981 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 385, 891, 663, 981
The greatest common divisor of numbers 385, 891, 663, 981 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 385, 891, 663, 981 is 1.
1. What is the GCD of 385, 891, 663, 981?
GCD of given numbers 385, 891, 663, 981 is 1
2. How to calculate the greatest common divisor of 385, 891, 663, 981?
We can find the highest common divisor of 385, 891, 663, 981 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 385, 891, 663, 981 i.e 1.
3. How can I use the GCD of 385, 891, 663, 981Calculator?
Out the numbers 385, 891, 663, 981 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.