GCD of 488, 445, 868, 645 Calculator

Given Input numbers are 488, 445, 868, 645

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

Divisors of 488

List of positive integer divisors of 488 that divides 488 without a remainder.

1, 2, 4, 8, 61, 122, 244, 488

Divisors of 445

List of positive integer divisors of 445 that divides 445 without a remainder.

1, 5, 89, 445

Divisors of 868

List of positive integer divisors of 868 that divides 868 without a remainder.

1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868

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 488, 445, 868, 645 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 488, 445, 868, 645 is 1.

Therefore, GCD of numbers 488, 445, 868, 645 is 1

Given Input Data is 488, 445, 868, 645

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

Prime Factorization of 488 is 2 x 2 x 2 x 61

Prime Factorization of 445 is 5 x 89

Prime Factorization of 868 is 2 x 2 x 7 x 31

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(488, 445) = 217160

GCD(488, 445) = ( 488 x 445 ) / 217160

GCD(488, 445) = 217160 / 217160

GCD(488, 445) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 868

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

LCM(1, 868) = 868

GCD(1, 868) = ( 1 x 868 ) / 868

GCD(1, 868) = 868 / 868

GCD(1, 868) = 1

Step3:

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 488, 445, 868, 645 is 1

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1. What is the GCD of 488, 445, 868, 645?

GCD of 488, 445, 868, 645 is 1

2. Where do I get the detailed procedure to find GCD of 488, 445, 868, 645?

You can find a detailed procedure to find GCD of 488, 445, 868, 645 on our page.

3. How to find GCD of 488, 445, 868, 645 on a calculator?

You can find the GCD of 488, 445, 868, 645 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.