GCD of 717, 490, 399 Calculator

Given Input numbers are 717, 490, 399

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

Divisors of 717

List of positive integer divisors of 717 that divides 717 without a remainder.

1, 3, 239, 717

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 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Greatest Common Divisior

We found the divisors of 717, 490, 399 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 717, 490, 399 is 1.

Therefore, GCD of numbers 717, 490, 399 is 1

Given Input Data is 717, 490, 399

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

Prime Factorization of 717 is 3 x 239

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

Prime Factorization of 399 is 3 x 7 x 19

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(717, 490) = 351330

GCD(717, 490) = ( 717 x 490 ) / 351330

GCD(717, 490) = 351330 / 351330

GCD(717, 490) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 399

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

LCM(1, 399) = 399

GCD(1, 399) = ( 1 x 399 ) / 399

GCD(1, 399) = 399 / 399

GCD(1, 399) = 1

GCD of 717, 490, 399 is 1

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1. What is the GCD of 717, 490, 399?

GCD of 717, 490, 399 is 1

2. Where do I get the detailed procedure to find GCD of 717, 490, 399?

You can find a detailed procedure to find GCD of 717, 490, 399 on our page.

3. How to find GCD of 717, 490, 399 on a calculator?

You can find the GCD of 717, 490, 399 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.