Online GCD Calculator is useful to find the GCD of 861, 225, 323, 155 quickly. Get the easiest ways to solve the greatest common divisor of 861, 225, 323, 155 i.e 1 in different methods as follows.
Given Input numbers are 861, 225, 323, 155
In the factoring method, we have to find the divisors of all numbers
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
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 323 :
The positive integer divisors of 323 that completely divides 323 are.
1, 17, 19, 323
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
GCD of numbers is the greatest common divisor
So, the GCD (861, 225, 323, 155) = 1.
Given numbers are 861, 225, 323, 155
The list of prime factors of all numbers are
Prime factors of 861 are 3 x 7 x 41
Prime factors of 225 are 3 x 3 x 5 x 5
Prime factors of 323 are 17 x 19
Prime factors of 155 are 5 x 31
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 861, 225, 323, 155
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(861, 225) = 64575
GCD(861, 225) = ( 861 x 225 ) / 64575
= 861 / 225
= 861
Step2:
LCM(3, 323) = 969
GCD(3, 323) = ( 3 x 323 ) / 969
= 3 / 323
= 3
Step3:
LCM(1, 155) = 155
GCD(1, 155) = ( 1 x 155 ) / 155
= 1 / 155
= 1
So, Greatest Common Divisor of 861, 225, 323, 155 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 861, 225, 323, 155
The greatest common divisor of numbers 861, 225, 323, 155 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 225, 323, 155 is 1.
1. What is the GCD of 861, 225, 323, 155?
GCD of given numbers 861, 225, 323, 155 is 1
2. How to calculate the greatest common divisor of 861, 225, 323, 155?
We can find the highest common divisor of 861, 225, 323, 155 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 861, 225, 323, 155 i.e 1.
3. How can I use the GCD of 861, 225, 323, 155Calculator?
Out the numbers 861, 225, 323, 155 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.