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GCD of 721, 990, 520 Calculator

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Online GCD Calculator is useful to find the GCD of 721, 990, 520 quickly. Get the easiest ways to solve the greatest common divisor of 721, 990, 520 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 721, 990, 520 with Factoring?

Given Input numbers are 721, 990, 520

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 990 :

The positive integer divisors of 990 that completely divides 990 are.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

Divisors of 520 :

The positive integer divisors of 520 that completely divides 520 are.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520


GCD of numbers is the greatest common divisor

So, the GCD (721, 990, 520) = 1.

Find GCD of 721, 990, 520 using Prime Factorization

Given numbers are 721, 990, 520

The list of prime factors of all numbers are

Prime factors of 721 are 7 x 103

Prime factors of 990 are 2 x 3 x 3 x 5 x 11

Prime factors of 520 are 2 x 2 x 2 x 5 x 13

The above numbers do not have any common prime factor. So GCD is 1

Steps to Calculate GCD of 721, 990, 520 using LCM Formula

Given numbers are 721, 990, 520

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(721, 990) = 713790

GCD(721, 990) = ( 721 x 990 ) / 713790

= 721 / 990

= 721


Step2:

LCM(1, 520) = 520

GCD(1, 520) = ( 1 x 520 ) / 520

= 1 / 520

= 1


So, Greatest Common Divisor of 721, 990, 520 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 721, 990, 520

Given numbers are 721, 990, 520
The greatest common divisor of numbers 721, 990, 520 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 721, 990, 520 is 1.

FAQs on GCD of 721, 990, 520 Calculator

1. What is the GCD of 721, 990, 520?

GCD of given numbers 721, 990, 520 is 1


2. How to calculate the greatest common divisor of 721, 990, 520?

We can find the highest common divisor of 721, 990, 520 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, 990, 520 i.e 1.


3. How can I use the GCD of 721, 990, 520Calculator?

Out the numbers 721, 990, 520 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.