GCD of 645, 871, 733, 816 Calculator

Given Input numbers are 645, 871, 733, 816

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

Divisors of 645

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

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

Divisors of 871

List of positive integer divisors of 871 that divides 871 without a remainder.

1, 13, 67, 871

Divisors of 733

List of positive integer divisors of 733 that divides 733 without a remainder.

1, 733

Divisors of 816

List of positive integer divisors of 816 that divides 816 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816

Greatest Common Divisior

We found the divisors of 645, 871, 733, 816 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 645, 871, 733, 816 is 1.

Therefore, GCD of numbers 645, 871, 733, 816 is 1

Given Input Data is 645, 871, 733, 816

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

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 871 is 13 x 67

Prime Factorization of 733 is 733

Prime Factorization of 816 is 2 x 2 x 2 x 2 x 3 x 17

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(645, 871) = 561795

GCD(645, 871) = ( 645 x 871 ) / 561795

GCD(645, 871) = 561795 / 561795

GCD(645, 871) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 733

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

LCM(1, 733) = 733

GCD(1, 733) = ( 1 x 733 ) / 733

GCD(1, 733) = 733 / 733

GCD(1, 733) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 816

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

LCM(1, 816) = 816

GCD(1, 816) = ( 1 x 816 ) / 816

GCD(1, 816) = 816 / 816

GCD(1, 816) = 1

GCD of 645, 871, 733, 816 is 1

Here are some samples of GCD of Numbers calculations.

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• GCD of 653, 845, 710, 915

1. What is the GCD of 645, 871, 733, 816?

GCD of 645, 871, 733, 816 is 1

2. Where do I get the detailed procedure to find GCD of 645, 871, 733, 816?

You can find a detailed procedure to find GCD of 645, 871, 733, 816 on our page.

3. How to find GCD of 645, 871, 733, 816 on a calculator?

You can find the GCD of 645, 871, 733, 816 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.