GCD of 390, 397, 730 Calculator

Given Input numbers are 390, 397, 730

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 397

List of positive integer divisors of 397 that divides 397 without a remainder.

1, 397

Divisors of 730

List of positive integer divisors of 730 that divides 730 without a remainder.

1, 2, 5, 10, 73, 146, 365, 730

Greatest Common Divisior

We found the divisors of 390, 397, 730 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 390, 397, 730 is 1.

Therefore, GCD of numbers 390, 397, 730 is 1

Given Input Data is 390, 397, 730

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 397 is 397

Prime Factorization of 730 is 2 x 5 x 73

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, 397) = 154830

GCD(390, 397) = ( 390 x 397 ) / 154830

GCD(390, 397) = 154830 / 154830

GCD(390, 397) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 730

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

LCM(1, 730) = 730

GCD(1, 730) = ( 1 x 730 ) / 730

GCD(1, 730) = 730 / 730

GCD(1, 730) = 1

GCD of 390, 397, 730 is 1

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1. What is the GCD of 390, 397, 730?

GCD of 390, 397, 730 is 1

2. Where do I get the detailed procedure to find GCD of 390, 397, 730?

You can find a detailed procedure to find GCD of 390, 397, 730 on our page.

3. How to find GCD of 390, 397, 730 on a calculator?

You can find the GCD of 390, 397, 730 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.