GCD of 442, 155, 28, 809 Calculator

Given Input numbers are 442, 155, 28, 809

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

Divisors of 442

List of positive integer divisors of 442 that divides 442 without a remainder.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 809

List of positive integer divisors of 809 that divides 809 without a remainder.

1, 809

Greatest Common Divisior

We found the divisors of 442, 155, 28, 809 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 442, 155, 28, 809 is 1.

Therefore, GCD of numbers 442, 155, 28, 809 is 1

Given Input Data is 442, 155, 28, 809

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

Prime Factorization of 442 is 2 x 13 x 17

Prime Factorization of 155 is 5 x 31

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 809 is 809

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(442, 155) = 68510

GCD(442, 155) = ( 442 x 155 ) / 68510

GCD(442, 155) = 68510 / 68510

GCD(442, 155) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 809

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

LCM(1, 809) = 809

GCD(1, 809) = ( 1 x 809 ) / 809

GCD(1, 809) = 809 / 809

GCD(1, 809) = 1

GCD of 442, 155, 28, 809 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 338, 881, 17, 397
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• GCD of 252, 590, 28, 337

1. What is the GCD of 442, 155, 28, 809?

GCD of 442, 155, 28, 809 is 1

2. Where do I get the detailed procedure to find GCD of 442, 155, 28, 809?

You can find a detailed procedure to find GCD of 442, 155, 28, 809 on our page.

3. How to find GCD of 442, 155, 28, 809 on a calculator?

You can find the GCD of 442, 155, 28, 809 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.