GCD of 808, 553, 645 Calculator

Given Input numbers are 808, 553, 645

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

Divisors of 808

List of positive integer divisors of 808 that divides 808 without a remainder.

1, 2, 4, 8, 101, 202, 404, 808

Divisors of 553

List of positive integer divisors of 553 that divides 553 without a remainder.

1, 7, 79, 553

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Greatest Common Divisior

We found the divisors of 808, 553, 645 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 808, 553, 645 is 1.

Therefore, GCD of numbers 808, 553, 645 is 1

Given Input Data is 808, 553, 645

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

Prime Factorization of 808 is 2 x 2 x 2 x 101

Prime Factorization of 553 is 7 x 79

Prime Factorization of 645 is 3 x 5 x 43

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(808, 553) = 446824

GCD(808, 553) = ( 808 x 553 ) / 446824

GCD(808, 553) = 446824 / 446824

GCD(808, 553) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 645

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

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

GCD(1, 645) = 645 / 645

GCD(1, 645) = 1

GCD of 808, 553, 645 is 1

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• GCD of 239, 442, 760
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1. What is the GCD of 808, 553, 645?

GCD of 808, 553, 645 is 1

2. Where do I get the detailed procedure to find GCD of 808, 553, 645?

You can find a detailed procedure to find GCD of 808, 553, 645 on our page.

3. How to find GCD of 808, 553, 645 on a calculator?

You can find the GCD of 808, 553, 645 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.