GCD of 390, 487, 392 Calculator

Given Input numbers are 390, 487, 392

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

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 487

List of positive integer divisors of 487 that divides 487 without a remainder.

1, 487

Divisors of 392

List of positive integer divisors of 392 that divides 392 without a remainder.

1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392

Greatest Common Divisior

We found the divisors of 390, 487, 392 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 390, 487, 392 is 1.

Therefore, GCD of numbers 390, 487, 392 is 1

Given Input Data is 390, 487, 392

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

Prime Factorization of 390 is 2 x 3 x 5 x 13

Prime Factorization of 487 is 487

Prime Factorization of 392 is 2 x 2 x 2 x 7 x 7

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(390, 487) = 189930

GCD(390, 487) = ( 390 x 487 ) / 189930

GCD(390, 487) = 189930 / 189930

GCD(390, 487) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 392

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

LCM(1, 392) = 392

GCD(1, 392) = ( 1 x 392 ) / 392

GCD(1, 392) = 392 / 392

GCD(1, 392) = 1

GCD of 390, 487, 392 is 1

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1. What is the GCD of 390, 487, 392?

GCD of 390, 487, 392 is 1

2. Where do I get the detailed procedure to find GCD of 390, 487, 392?

You can find a detailed procedure to find GCD of 390, 487, 392 on our page.

3. How to find GCD of 390, 487, 392 on a calculator?

You can find the GCD of 390, 487, 392 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.