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GCD of 803, 904, 21 Calculator

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


Online GCD Calculator is useful to find the GCD of 803, 904, 21 quickly. Get the easiest ways to solve the greatest common divisor of 803, 904, 21 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 803, 904, 21 with Factoring?

Given Input numbers are 803, 904, 21

In the factoring method, we have to find the divisors of all numbers

Divisors of 803 :

The positive integer divisors of 803 that completely divides 803 are.

1, 11, 73, 803

Divisors of 904 :

The positive integer divisors of 904 that completely divides 904 are.

1, 2, 4, 8, 113, 226, 452, 904

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 (803, 904, 21) = 1.

Find GCD of 803, 904, 21 using Prime Factorization

Given numbers are 803, 904, 21

The list of prime factors of all numbers are

Prime factors of 803 are 11 x 73

Prime factors of 904 are 2 x 2 x 2 x 113

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 803, 904, 21 using LCM Formula

Given numbers are 803, 904, 21

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

Apply this formula for all numbers.

Step1:

LCM(803, 904) = 725912

GCD(803, 904) = ( 803 x 904 ) / 725912

= 803 / 904

= 803


Step2:

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

= 1 / 21

= 1


So, Greatest Common Divisor of 803, 904, 21 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 803, 904, 21

Given numbers are 803, 904, 21
The greatest common divisor of numbers 803, 904, 21 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 803, 904, 21 is 1.

FAQs on GCD of 803, 904, 21 Calculator

1. What is the GCD of 803, 904, 21?

GCD of given numbers 803, 904, 21 is 1


2. How to calculate the greatest common divisor of 803, 904, 21?

We can find the highest common divisor of 803, 904, 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 803, 904, 21 i.e 1.


3. How can I use the GCD of 803, 904, 21Calculator?

Out the numbers 803, 904, 21 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.