GCD of 225, 978, 79, 856 Calculator

Given Input numbers are 225, 978, 79, 856

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

Divisors of 225

List of positive integer divisors of 225 that divides 225 without a remainder.

1, 3, 5, 9, 15, 25, 45, 75, 225

Divisors of 978

List of positive integer divisors of 978 that divides 978 without a remainder.

1, 2, 3, 6, 163, 326, 489, 978

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 856

List of positive integer divisors of 856 that divides 856 without a remainder.

1, 2, 4, 8, 107, 214, 428, 856

Greatest Common Divisior

We found the divisors of 225, 978, 79, 856 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 225, 978, 79, 856 is 1.

Therefore, GCD of numbers 225, 978, 79, 856 is 1

Given Input Data is 225, 978, 79, 856

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

Prime Factorization of 225 is 3 x 3 x 5 x 5

Prime Factorization of 978 is 2 x 3 x 163

Prime Factorization of 79 is 79

Prime Factorization of 856 is 2 x 2 x 2 x 107

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(225, 978) = 73350

GCD(225, 978) = ( 225 x 978 ) / 73350

GCD(225, 978) = 220050 / 73350

GCD(225, 978) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 79

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

LCM(3, 79) = 237

GCD(3, 79) = ( 3 x 79 ) / 237

GCD(3, 79) = 237 / 237

GCD(3, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 856

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

LCM(1, 856) = 856

GCD(1, 856) = ( 1 x 856 ) / 856

GCD(1, 856) = 856 / 856

GCD(1, 856) = 1

GCD of 225, 978, 79, 856 is 1

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1. What is the GCD of 225, 978, 79, 856?

GCD of 225, 978, 79, 856 is 1

2. Where do I get the detailed procedure to find GCD of 225, 978, 79, 856?

You can find a detailed procedure to find GCD of 225, 978, 79, 856 on our page.

3. How to find GCD of 225, 978, 79, 856 on a calculator?

You can find the GCD of 225, 978, 79, 856 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.