GCD of 816, 561, 221 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 816, 561, 221 quickly. Get the easiest ways to solve the greatest common divisor of 816, 561, 221 i.e 17 in different methods as follows.
Given Input numbers are 816, 561, 221
In the factoring method, we have to find the divisors of all numbers
Divisors of 816 :
The positive integer divisors of 816 that completely divides 816 are.
1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816
Divisors of 561 :
The positive integer divisors of 561 that completely divides 561 are.
1, 3, 11, 17, 33, 51, 187, 561
Divisors of 221 :
The positive integer divisors of 221 that completely divides 221 are.
1, 13, 17, 221
GCD of numbers is the greatest common divisor
So, the GCD (816, 561, 221) = 17.
Given numbers are 816, 561, 221
The list of prime factors of all numbers are
Prime factors of 816 are 2 x 2 x 2 x 2 x 3 x 17
Prime factors of 561 are 3 x 11 x 17
Prime factors of 221 are 13 x 17
The highest common occurrence is 171
Therefore, GCD of 816, 561, 221 is 17.
Steps to Calculate GCD of 816, 561, 221 using LCM Formula
Given numbers are 816, 561, 221
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(816, 561) = 8976
GCD(816, 561) = ( 816 x 561 ) / 8976
= 816 / 561
= 816
Step2:
LCM(51, 221) = 663
GCD(51, 221) = ( 51 x 221 ) / 663
= 51 / 221
= 51
So, Greatest Common Divisor of 816, 561, 221 is 17
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 816, 561, 221
Given numbers are 816, 561, 221
The greatest common divisor of numbers 816, 561, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 816, 561, 221 is 17.
FAQs on GCD of 816, 561, 221 Calculator
1. What is the GCD of 816, 561, 221?
GCD of given numbers 816, 561, 221 is 17
2. How to calculate the greatest common divisor of 816, 561, 221?
We can find the highest common divisor of 816, 561, 221 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 816, 561, 221 i.e 17.
3. How can I use the GCD of 816, 561, 221Calculator?
Out the numbers 816, 561, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.