GCD of 439, 645, 720 Calculator

Given Input numbers are 439, 645, 720

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

Divisors of 439

List of positive integer divisors of 439 that divides 439 without a remainder.

1, 439

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 720

List of positive integer divisors of 720 that divides 720 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Greatest Common Divisior

We found the divisors of 439, 645, 720 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 439, 645, 720 is 1.

Therefore, GCD of numbers 439, 645, 720 is 1

Given Input Data is 439, 645, 720

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

Prime Factorization of 439 is 439

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 720 is 2 x 2 x 2 x 2 x 3 x 3 x 5

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(439, 645) = 283155

GCD(439, 645) = ( 439 x 645 ) / 283155

GCD(439, 645) = 283155 / 283155

GCD(439, 645) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 720

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

LCM(1, 720) = 720

GCD(1, 720) = ( 1 x 720 ) / 720

GCD(1, 720) = 720 / 720

GCD(1, 720) = 1

GCD of 439, 645, 720 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 772, 823, 266
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• GCD of 512, 146, 191
• GCD of 401, 736, 633
• GCD of 952, 812, 179

1. What is the GCD of 439, 645, 720?

GCD of 439, 645, 720 is 1

2. Where do I get the detailed procedure to find GCD of 439, 645, 720?

You can find a detailed procedure to find GCD of 439, 645, 720 on our page.

3. How to find GCD of 439, 645, 720 on a calculator?

You can find the GCD of 439, 645, 720 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.