GCD of 287, 228, 21 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 287, 228, 21 quickly. Get the easiest ways to solve the greatest common divisor of 287, 228, 21 i.e 1 in different methods as follows.
Given Input numbers are 287, 228, 21
In the factoring method, we have to find the divisors of all numbers
Divisors of 287 :
The positive integer divisors of 287 that completely divides 287 are.
1, 7, 41, 287
Divisors of 228 :
The positive integer divisors of 228 that completely divides 228 are.
1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228
Divisors of 21 :
The positive integer divisors of 21 that completely divides 21 are.
1, 3, 7, 21
GCD of numbers is the greatest common divisor
So, the GCD (287, 228, 21) = 1.
Given numbers are 287, 228, 21
The list of prime factors of all numbers are
Prime factors of 287 are 7 x 41
Prime factors of 228 are 2 x 2 x 3 x 19
Prime factors of 21 are 3 x 7
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 287, 228, 21 using LCM Formula
Given numbers are 287, 228, 21
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(287, 228) = 65436
GCD(287, 228) = ( 287 x 228 ) / 65436
= 287 / 228
= 287
Step2:
LCM(1, 21) = 21
GCD(1, 21) = ( 1 x 21 ) / 21
= 1 / 21
= 1
So, Greatest Common Divisor of 287, 228, 21 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 287, 228, 21
Given numbers are 287, 228, 21
The greatest common divisor of numbers 287, 228, 21 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 287, 228, 21 is 1.
FAQs on GCD of 287, 228, 21 Calculator
1. What is the GCD of 287, 228, 21?
GCD of given numbers 287, 228, 21 is 1
2. How to calculate the greatest common divisor of 287, 228, 21?
We can find the highest common divisor of 287, 228, 21 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 287, 228, 21 i.e 1.
3. How can I use the GCD of 287, 228, 21Calculator?
Out the numbers 287, 228, 21 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.