GCD of 447, 128, 978 Calculator

Given Input numbers are 447, 128, 978

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

Divisors of 447

List of positive integer divisors of 447 that divides 447 without a remainder.

1, 3, 149, 447

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 978

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

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

Greatest Common Divisior

We found the divisors of 447, 128, 978 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 447, 128, 978 is 1.

Therefore, GCD of numbers 447, 128, 978 is 1

Given Input Data is 447, 128, 978

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

Prime Factorization of 447 is 3 x 149

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 978 is 2 x 3 x 163

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(447, 128) = 57216

GCD(447, 128) = ( 447 x 128 ) / 57216

GCD(447, 128) = 57216 / 57216

GCD(447, 128) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 978

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

LCM(1, 978) = 978

GCD(1, 978) = ( 1 x 978 ) / 978

GCD(1, 978) = 978 / 978

GCD(1, 978) = 1

GCD of 447, 128, 978 is 1

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1. What is the GCD of 447, 128, 978?

GCD of 447, 128, 978 is 1

2. Where do I get the detailed procedure to find GCD of 447, 128, 978?

You can find a detailed procedure to find GCD of 447, 128, 978 on our page.

3. How to find GCD of 447, 128, 978 on a calculator?

You can find the GCD of 447, 128, 978 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.