GCD of 821, 398, 394 Calculator

Given Input numbers are 821, 398, 394

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

Divisors of 821

List of positive integer divisors of 821 that divides 821 without a remainder.

1, 821

Divisors of 398

List of positive integer divisors of 398 that divides 398 without a remainder.

1, 2, 199, 398

Divisors of 394

List of positive integer divisors of 394 that divides 394 without a remainder.

1, 2, 197, 394

Greatest Common Divisior

We found the divisors of 821, 398, 394 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 821, 398, 394 is 1.

Therefore, GCD of numbers 821, 398, 394 is 1

Given Input Data is 821, 398, 394

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

Prime Factorization of 821 is 821

Prime Factorization of 398 is 2 x 199

Prime Factorization of 394 is 2 x 197

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(821, 398) = 326758

GCD(821, 398) = ( 821 x 398 ) / 326758

GCD(821, 398) = 326758 / 326758

GCD(821, 398) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 394

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

LCM(1, 394) = 394

GCD(1, 394) = ( 1 x 394 ) / 394

GCD(1, 394) = 394 / 394

GCD(1, 394) = 1

GCD of 821, 398, 394 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 313, 788, 502
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• GCD of 743, 161, 244
• GCD of 478, 555, 254

1. What is the GCD of 821, 398, 394?

GCD of 821, 398, 394 is 1

2. Where do I get the detailed procedure to find GCD of 821, 398, 394?

You can find a detailed procedure to find GCD of 821, 398, 394 on our page.

3. How to find GCD of 821, 398, 394 on a calculator?

You can find the GCD of 821, 398, 394 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.