Online GCD Calculator is useful to find the GCD of 405, 320, 31, 325 quickly. Get the easiest ways to solve the greatest common divisor of 405, 320, 31, 325 i.e 1 in different methods as follows.
Given Input numbers are 405, 320, 31, 325
In the factoring method, we have to find the divisors of all numbers
Divisors of 405 :
The positive integer divisors of 405 that completely divides 405 are.
1, 3, 5, 9, 15, 27, 45, 81, 135, 405
Divisors of 320 :
The positive integer divisors of 320 that completely divides 320 are.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
Divisors of 31 :
The positive integer divisors of 31 that completely divides 31 are.
1, 31
Divisors of 325 :
The positive integer divisors of 325 that completely divides 325 are.
1, 5, 13, 25, 65, 325
GCD of numbers is the greatest common divisor
So, the GCD (405, 320, 31, 325) = 1.
Given numbers are 405, 320, 31, 325
The list of prime factors of all numbers are
Prime factors of 405 are 3 x 3 x 3 x 3 x 5
Prime factors of 320 are 2 x 2 x 2 x 2 x 2 x 2 x 5
Prime factors of 31 are 31
Prime factors of 325 are 5 x 5 x 13
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 405, 320, 31, 325
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(405, 320) = 25920
GCD(405, 320) = ( 405 x 320 ) / 25920
= 405 / 320
= 405
Step2:
LCM(5, 31) = 155
GCD(5, 31) = ( 5 x 31 ) / 155
= 5 / 31
= 5
Step3:
LCM(1, 325) = 325
GCD(1, 325) = ( 1 x 325 ) / 325
= 1 / 325
= 1
So, Greatest Common Divisor of 405, 320, 31, 325 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 405, 320, 31, 325
The greatest common divisor of numbers 405, 320, 31, 325 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 405, 320, 31, 325 is 1.
1. What is the GCD of 405, 320, 31, 325?
GCD of given numbers 405, 320, 31, 325 is 1
2. How to calculate the greatest common divisor of 405, 320, 31, 325?
We can find the highest common divisor of 405, 320, 31, 325 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 405, 320, 31, 325 i.e 1.
3. How can I use the GCD of 405, 320, 31, 325Calculator?
Out the numbers 405, 320, 31, 325 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.