GCD of 449, 391, 720 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 449, 391, 720 quickly. Get the easiest ways to solve the greatest common divisor of 449, 391, 720 i.e 1 in different methods as follows.
Given Input numbers are 449, 391, 720
In the factoring method, we have to find the divisors of all numbers
Divisors of 449 :
The positive integer divisors of 449 that completely divides 449 are.
1, 449
Divisors of 391 :
The positive integer divisors of 391 that completely divides 391 are.
1, 17, 23, 391
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 (449, 391, 720) = 1.
Given numbers are 449, 391, 720
The list of prime factors of all numbers are
Prime factors of 449 are 449
Prime factors of 391 are 17 x 23
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 449, 391, 720 using LCM Formula
Given numbers are 449, 391, 720
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(449, 391) = 175559
GCD(449, 391) = ( 449 x 391 ) / 175559
= 449 / 391
= 449
Step2:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
So, Greatest Common Divisor of 449, 391, 720 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 449, 391, 720
Given numbers are 449, 391, 720
The greatest common divisor of numbers 449, 391, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 449, 391, 720 is 1.
FAQs on GCD of 449, 391, 720 Calculator
1. What is the GCD of 449, 391, 720?
GCD of given numbers 449, 391, 720 is 1
2. How to calculate the greatest common divisor of 449, 391, 720?
We can find the highest common divisor of 449, 391, 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 449, 391, 720 i.e 1.
3. How can I use the GCD of 449, 391, 720Calculator?
Out the numbers 449, 391, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.