Online GCD Calculator is useful to find the GCD of 810, 225, 105 quickly. Get the easiest ways to solve the greatest common divisor of 810, 225, 105 i.e 15 in different methods as follows.
Given Input numbers are 810, 225, 105
In the factoring method, we have to find the divisors of all numbers
Divisors of 810 :
The positive integer divisors of 810 that completely divides 810 are.
1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
Divisors of 225 :
The positive integer divisors of 225 that completely divides 225 are.
1, 3, 5, 9, 15, 25, 45, 75, 225
Divisors of 105 :
The positive integer divisors of 105 that completely divides 105 are.
1, 3, 5, 7, 15, 21, 35, 105
GCD of numbers is the greatest common divisor
So, the GCD (810, 225, 105) = 15.
Given numbers are 810, 225, 105
The list of prime factors of all numbers are
Prime factors of 810 are 2 x 3 x 3 x 3 x 3 x 5
Prime factors of 225 are 3 x 3 x 5 x 5
Prime factors of 105 are 3 x 5 x 7
The highest common occurrence is 31 x 51
Therefore, GCD of 810, 225, 105 is 15.
Given numbers are 810, 225, 105
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(810, 225) = 4050
GCD(810, 225) = ( 810 x 225 ) / 4050
= 810 / 225
= 810
Step2:
LCM(45, 105) = 315
GCD(45, 105) = ( 45 x 105 ) / 315
= 45 / 105
= 45
So, Greatest Common Divisor of 810, 225, 105 is 15
Here are some samples of GCD of Numbers calculations.
Given numbers are 810, 225, 105
The greatest common divisor of numbers 810, 225, 105 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 810, 225, 105 is 15.
1. What is the GCD of 810, 225, 105?
GCD of given numbers 810, 225, 105 is 15
2. How to calculate the greatest common divisor of 810, 225, 105?
We can find the highest common divisor of 810, 225, 105 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 810, 225, 105 i.e 15.
3. How can I use the GCD of 810, 225, 105Calculator?
Out the numbers 810, 225, 105 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.