Online GCD Calculator is useful to find the GCD of 861, 777, 213 quickly. Get the easiest ways to solve the greatest common divisor of 861, 777, 213 i.e 3 in different methods as follows.
Given Input numbers are 861, 777, 213
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 777 :
The positive integer divisors of 777 that completely divides 777 are.
1, 3, 7, 21, 37, 111, 259, 777
Divisors of 213 :
The positive integer divisors of 213 that completely divides 213 are.
1, 3, 71, 213
GCD of numbers is the greatest common divisor
So, the GCD (861, 777, 213) = 3.
Given numbers are 861, 777, 213
The list of prime factors of all numbers are
Prime factors of 861 are 3 x 7 x 41
Prime factors of 777 are 3 x 7 x 37
Prime factors of 213 are 3 x 71
The highest common occurrence is 31
Therefore, GCD of 861, 777, 213 is 3.
Given numbers are 861, 777, 213
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(861, 777) = 31857
GCD(861, 777) = ( 861 x 777 ) / 31857
= 861 / 777
= 861
Step2:
LCM(21, 213) = 1491
GCD(21, 213) = ( 21 x 213 ) / 1491
= 21 / 213
= 21
So, Greatest Common Divisor of 861, 777, 213 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 861, 777, 213
The greatest common divisor of numbers 861, 777, 213 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 777, 213 is 3.
1. What is the GCD of 861, 777, 213?
GCD of given numbers 861, 777, 213 is 3
2. How to calculate the greatest common divisor of 861, 777, 213?
We can find the highest common divisor of 861, 777, 213 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, 777, 213 i.e 3.
3. How can I use the GCD of 861, 777, 213Calculator?
Out the numbers 861, 777, 213 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.