Online GCD Calculator is useful to find the GCD of 393, 355, 421, 891 quickly. Get the easiest ways to solve the greatest common divisor of 393, 355, 421, 891 i.e 1 in different methods as follows.
Given Input numbers are 393, 355, 421, 891
In the factoring method, we have to find the divisors of all numbers
Divisors of 393 :
The positive integer divisors of 393 that completely divides 393 are.
1, 3, 131, 393
Divisors of 355 :
The positive integer divisors of 355 that completely divides 355 are.
1, 5, 71, 355
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
GCD of numbers is the greatest common divisor
So, the GCD (393, 355, 421, 891) = 1.
Given numbers are 393, 355, 421, 891
The list of prime factors of all numbers are
Prime factors of 393 are 3 x 131
Prime factors of 355 are 5 x 71
Prime factors of 421 are 421
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 393, 355, 421, 891
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(393, 355) = 139515
GCD(393, 355) = ( 393 x 355 ) / 139515
= 393 / 355
= 393
Step2:
LCM(1, 421) = 421
GCD(1, 421) = ( 1 x 421 ) / 421
= 1 / 421
= 1
Step3:
LCM(1, 891) = 891
GCD(1, 891) = ( 1 x 891 ) / 891
= 1 / 891
= 1
So, Greatest Common Divisor of 393, 355, 421, 891 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 393, 355, 421, 891
The greatest common divisor of numbers 393, 355, 421, 891 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 393, 355, 421, 891 is 1.
1. What is the GCD of 393, 355, 421, 891?
GCD of given numbers 393, 355, 421, 891 is 1
2. How to calculate the greatest common divisor of 393, 355, 421, 891?
We can find the highest common divisor of 393, 355, 421, 891 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 393, 355, 421, 891 i.e 1.
3. How can I use the GCD of 393, 355, 421, 891Calculator?
Out the numbers 393, 355, 421, 891 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.