GCD of 245, 395, 489, 798 Calculator

Given Input numbers are 245, 395, 489, 798

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

Divisors of 245

List of positive integer divisors of 245 that divides 245 without a remainder.

1, 5, 7, 35, 49, 245

Divisors of 395

List of positive integer divisors of 395 that divides 395 without a remainder.

1, 5, 79, 395

Divisors of 489

List of positive integer divisors of 489 that divides 489 without a remainder.

1, 3, 163, 489

Divisors of 798

List of positive integer divisors of 798 that divides 798 without a remainder.

1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798

Greatest Common Divisior

We found the divisors of 245, 395, 489, 798 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 245, 395, 489, 798 is 1.

Therefore, GCD of numbers 245, 395, 489, 798 is 1

Given Input Data is 245, 395, 489, 798

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

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 395 is 5 x 79

Prime Factorization of 489 is 3 x 163

Prime Factorization of 798 is 2 x 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(245, 395) = 19355

GCD(245, 395) = ( 245 x 395 ) / 19355

GCD(245, 395) = 96775 / 19355

GCD(245, 395) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 489

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

LCM(5, 489) = 2445

GCD(5, 489) = ( 5 x 489 ) / 2445

GCD(5, 489) = 2445 / 2445

GCD(5, 489) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 798

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

LCM(1, 798) = 798

GCD(1, 798) = ( 1 x 798 ) / 798

GCD(1, 798) = 798 / 798

GCD(1, 798) = 1

GCD of 245, 395, 489, 798 is 1

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• GCD of 296, 691, 666, 386
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1. What is the GCD of 245, 395, 489, 798?

GCD of 245, 395, 489, 798 is 1

2. Where do I get the detailed procedure to find GCD of 245, 395, 489, 798?

You can find a detailed procedure to find GCD of 245, 395, 489, 798 on our page.

3. How to find GCD of 245, 395, 489, 798 on a calculator?

You can find the GCD of 245, 395, 489, 798 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.