GCD of 721, 489, 713, 405 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 721, 489, 713, 405 quickly. Get the easiest ways to solve the greatest common divisor of 721, 489, 713, 405 i.e 1 in different methods as follows.
Given Input numbers are 721, 489, 713, 405
In the factoring method, we have to find the divisors of all numbers
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
Divisors of 489 :
The positive integer divisors of 489 that completely divides 489 are.
1, 3, 163, 489
Divisors of 713 :
The positive integer divisors of 713 that completely divides 713 are.
1, 23, 31, 713
Divisors of 405 :
The positive integer divisors of 405 that completely divides 405 are.
1, 3, 5, 9, 15, 27, 45, 81, 135, 405
GCD of numbers is the greatest common divisor
So, the GCD (721, 489, 713, 405) = 1.
Given numbers are 721, 489, 713, 405
The list of prime factors of all numbers are
Prime factors of 721 are 7 x 103
Prime factors of 489 are 3 x 163
Prime factors of 713 are 23 x 31
Prime factors of 405 are 3 x 3 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 721, 489, 713, 405 using LCM Formula
Given numbers are 721, 489, 713, 405
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(721, 489) = 352569
GCD(721, 489) = ( 721 x 489 ) / 352569
= 721 / 489
= 721
Step2:
LCM(1, 713) = 713
GCD(1, 713) = ( 1 x 713 ) / 713
= 1 / 713
= 1
Step3:
LCM(1, 405) = 405
GCD(1, 405) = ( 1 x 405 ) / 405
= 1 / 405
= 1
So, Greatest Common Divisor of 721, 489, 713, 405 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 721, 489, 713, 405
Given numbers are 721, 489, 713, 405
The greatest common divisor of numbers 721, 489, 713, 405 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 721, 489, 713, 405 is 1.
FAQs on GCD of 721, 489, 713, 405 Calculator
1. What is the GCD of 721, 489, 713, 405?
GCD of given numbers 721, 489, 713, 405 is 1
2. How to calculate the greatest common divisor of 721, 489, 713, 405?
We can find the highest common divisor of 721, 489, 713, 405 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 721, 489, 713, 405 i.e 1.
3. How can I use the GCD of 721, 489, 713, 405Calculator?
Out the numbers 721, 489, 713, 405 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.