GCD of 231, 915, 720 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 231, 915, 720 quickly. Get the easiest ways to solve the greatest common divisor of 231, 915, 720 i.e 3 in different methods as follows.
Given Input numbers are 231, 915, 720
In the factoring method, we have to find the divisors of all numbers
Divisors of 231 :
The positive integer divisors of 231 that completely divides 231 are.
1, 3, 7, 11, 21, 33, 77, 231
Divisors of 915 :
The positive integer divisors of 915 that completely divides 915 are.
1, 3, 5, 15, 61, 183, 305, 915
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
GCD of numbers is the greatest common divisor
So, the GCD (231, 915, 720) = 3.
Given numbers are 231, 915, 720
The list of prime factors of all numbers are
Prime factors of 231 are 3 x 7 x 11
Prime factors of 915 are 3 x 5 x 61
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
The highest common occurrence is 31
Therefore, GCD of 231, 915, 720 is 3.
Steps to Calculate GCD of 231, 915, 720 using LCM Formula
Given numbers are 231, 915, 720
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(231, 915) = 70455
GCD(231, 915) = ( 231 x 915 ) / 70455
= 231 / 915
= 231
Step2:
LCM(3, 720) = 720
GCD(3, 720) = ( 3 x 720 ) / 720
= 3 / 720
= 3
So, Greatest Common Divisor of 231, 915, 720 is 3
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 231, 915, 720
Given numbers are 231, 915, 720
The greatest common divisor of numbers 231, 915, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 231, 915, 720 is 3.
FAQs on GCD of 231, 915, 720 Calculator
1. What is the GCD of 231, 915, 720?
GCD of given numbers 231, 915, 720 is 3
2. How to calculate the greatest common divisor of 231, 915, 720?
We can find the highest common divisor of 231, 915, 720 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 231, 915, 720 i.e 3.
3. How can I use the GCD of 231, 915, 720Calculator?
Out the numbers 231, 915, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.