GCD of 815, 260, 40, 392 Calculator

Given Input numbers are 815, 260, 40, 392

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

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 260

List of positive integer divisors of 260 that divides 260 without a remainder.

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260

Divisors of 40

List of positive integer divisors of 40 that divides 40 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40

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 815, 260, 40, 392 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 815, 260, 40, 392 is 1.

Therefore, GCD of numbers 815, 260, 40, 392 is 1

Given Input Data is 815, 260, 40, 392

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

Prime Factorization of 815 is 5 x 163

Prime Factorization of 260 is 2 x 2 x 5 x 13

Prime Factorization of 40 is 2 x 2 x 2 x 5

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(815, 260) = 42380

GCD(815, 260) = ( 815 x 260 ) / 42380

GCD(815, 260) = 211900 / 42380

GCD(815, 260) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 40

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

LCM(5, 40) = 40

GCD(5, 40) = ( 5 x 40 ) / 40

GCD(5, 40) = 200 / 40

GCD(5, 40) = 5

Step3:

Here we consider the GCD from the above i.e. 5 as first number and the next as 392

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

LCM(5, 392) = 1960

GCD(5, 392) = ( 5 x 392 ) / 1960

GCD(5, 392) = 1960 / 1960

GCD(5, 392) = 1

GCD of 815, 260, 40, 392 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 611, 212, 14, 970
• GCD of 249, 812, 64, 886
• GCD of 260, 954, 83, 119
• GCD of 137, 112, 24, 461
• GCD of 339, 115, 15, 941

1. What is the GCD of 815, 260, 40, 392?

GCD of 815, 260, 40, 392 is 1

2. Where do I get the detailed procedure to find GCD of 815, 260, 40, 392?

You can find a detailed procedure to find GCD of 815, 260, 40, 392 on our page.

3. How to find GCD of 815, 260, 40, 392 on a calculator?

You can find the GCD of 815, 260, 40, 392 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.