GCD of 818, 160, 279, 644 Calculator

Given Input numbers are 818, 160, 279, 644

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

Divisors of 818

List of positive integer divisors of 818 that divides 818 without a remainder.

1, 2, 409, 818

Divisors of 160

List of positive integer divisors of 160 that divides 160 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160

Divisors of 279

List of positive integer divisors of 279 that divides 279 without a remainder.

1, 3, 9, 31, 93, 279

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Greatest Common Divisior

We found the divisors of 818, 160, 279, 644 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 818, 160, 279, 644 is 1.

Therefore, GCD of numbers 818, 160, 279, 644 is 1

Given Input Data is 818, 160, 279, 644

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

Prime Factorization of 818 is 2 x 409

Prime Factorization of 160 is 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 279 is 3 x 3 x 31

Prime Factorization of 644 is 2 x 2 x 7 x 23

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(818, 160) = 65440

GCD(818, 160) = ( 818 x 160 ) / 65440

GCD(818, 160) = 130880 / 65440

GCD(818, 160) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 279

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

LCM(2, 279) = 558

GCD(2, 279) = ( 2 x 279 ) / 558

GCD(2, 279) = 558 / 558

GCD(2, 279) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 644

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

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

GCD(1, 644) = 644 / 644

GCD(1, 644) = 1

GCD of 818, 160, 279, 644 is 1

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1. What is the GCD of 818, 160, 279, 644?

GCD of 818, 160, 279, 644 is 1

2. Where do I get the detailed procedure to find GCD of 818, 160, 279, 644?

You can find a detailed procedure to find GCD of 818, 160, 279, 644 on our page.

3. How to find GCD of 818, 160, 279, 644 on a calculator?

You can find the GCD of 818, 160, 279, 644 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.