Online GCD Calculator is useful to find the GCD of 855, 831, 309, 216 quickly. Get the easiest ways to solve the greatest common divisor of 855, 831, 309, 216 i.e 3 in different methods as follows.
Given Input numbers are 855, 831, 309, 216
In the factoring method, we have to find the divisors of all numbers
Divisors of 855 :
The positive integer divisors of 855 that completely divides 855 are.
1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
Divisors of 831 :
The positive integer divisors of 831 that completely divides 831 are.
1, 3, 277, 831
Divisors of 309 :
The positive integer divisors of 309 that completely divides 309 are.
1, 3, 103, 309
Divisors of 216 :
The positive integer divisors of 216 that completely divides 216 are.
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
GCD of numbers is the greatest common divisor
So, the GCD (855, 831, 309, 216) = 3.
Given numbers are 855, 831, 309, 216
The list of prime factors of all numbers are
Prime factors of 855 are 3 x 3 x 5 x 19
Prime factors of 831 are 3 x 277
Prime factors of 309 are 3 x 103
Prime factors of 216 are 2 x 2 x 2 x 3 x 3 x 3
The highest common occurrence is 31
Therefore, GCD of 855, 831, 309, 216 is 3.
Given numbers are 855, 831, 309, 216
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(855, 831) = 236835
GCD(855, 831) = ( 855 x 831 ) / 236835
= 855 / 831
= 855
Step2:
LCM(3, 309) = 309
GCD(3, 309) = ( 3 x 309 ) / 309
= 3 / 309
= 3
Step3:
LCM(3, 216) = 216
GCD(3, 216) = ( 3 x 216 ) / 216
= 3 / 216
= 3
So, Greatest Common Divisor of 855, 831, 309, 216 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 855, 831, 309, 216
The greatest common divisor of numbers 855, 831, 309, 216 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 855, 831, 309, 216 is 3.
1. What is the GCD of 855, 831, 309, 216?
GCD of given numbers 855, 831, 309, 216 is 3
2. How to calculate the greatest common divisor of 855, 831, 309, 216?
We can find the highest common divisor of 855, 831, 309, 216 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 855, 831, 309, 216 i.e 3.
3. How can I use the GCD of 855, 831, 309, 216Calculator?
Out the numbers 855, 831, 309, 216 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.