GCD of 490, 991, 873, 421 Calculator

Given Input numbers are 490, 991, 873, 421

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 490

List of positive integer divisors of 490 that divides 490 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Divisors of 873

List of positive integer divisors of 873 that divides 873 without a remainder.

1, 3, 9, 97, 291, 873

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Greatest Common Divisior

We found the divisors of 490, 991, 873, 421 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 490, 991, 873, 421 is 1.

Therefore, GCD of numbers 490, 991, 873, 421 is 1

Given Input Data is 490, 991, 873, 421

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 490 is 2 x 5 x 7 x 7

Prime Factorization of 991 is 991

Prime Factorization of 873 is 3 x 3 x 97

Prime Factorization of 421 is 421

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(490, 991) = 485590

GCD(490, 991) = ( 490 x 991 ) / 485590

GCD(490, 991) = 485590 / 485590

GCD(490, 991) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 873

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

LCM(1, 873) = 873

GCD(1, 873) = ( 1 x 873 ) / 873

GCD(1, 873) = 873 / 873

GCD(1, 873) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 421

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

LCM(1, 421) = 421

GCD(1, 421) = ( 1 x 421 ) / 421

GCD(1, 421) = 421 / 421

GCD(1, 421) = 1

GCD of 490, 991, 873, 421 is 1

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1. What is the GCD of 490, 991, 873, 421?

GCD of 490, 991, 873, 421 is 1

2. Where do I get the detailed procedure to find GCD of 490, 991, 873, 421?

You can find a detailed procedure to find GCD of 490, 991, 873, 421 on our page.

3. How to find GCD of 490, 991, 873, 421 on a calculator?

You can find the GCD of 490, 991, 873, 421 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.