GCD of 285, 390, 63, 730 Calculator

Given Input numbers are 285, 390, 63, 730

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

Divisors of 285

List of positive integer divisors of 285 that divides 285 without a remainder.

1, 3, 5, 15, 19, 57, 95, 285

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 63

List of positive integer divisors of 63 that divides 63 without a remainder.

1, 3, 7, 9, 21, 63

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 285, 390, 63, 730 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 285, 390, 63, 730 is 1.

Therefore, GCD of numbers 285, 390, 63, 730 is 1

Given Input Data is 285, 390, 63, 730

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

Prime Factorization of 285 is 3 x 5 x 19

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

Prime Factorization of 63 is 3 x 3 x 7

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(285, 390) = 7410

GCD(285, 390) = ( 285 x 390 ) / 7410

GCD(285, 390) = 111150 / 7410

GCD(285, 390) = 15

Step2:

Here we consider the GCD from the above i.e. 15 as first number and the next as 63

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

LCM(15, 63) = 315

GCD(15, 63) = ( 15 x 63 ) / 315

GCD(15, 63) = 945 / 315

GCD(15, 63) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 730

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

LCM(3, 730) = 2190

GCD(3, 730) = ( 3 x 730 ) / 2190

GCD(3, 730) = 2190 / 2190

GCD(3, 730) = 1

GCD of 285, 390, 63, 730 is 1

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• GCD of 431, 630, 16, 315
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• GCD of 111, 334, 96, 946

1. What is the GCD of 285, 390, 63, 730?

GCD of 285, 390, 63, 730 is 1

2. Where do I get the detailed procedure to find GCD of 285, 390, 63, 730?

You can find a detailed procedure to find GCD of 285, 390, 63, 730 on our page.

3. How to find GCD of 285, 390, 63, 730 on a calculator?

You can find the GCD of 285, 390, 63, 730 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.