GCD of 845, 447, 20, 240 Calculator

Given Input numbers are 845, 447, 20, 240

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

Divisors of 845

List of positive integer divisors of 845 that divides 845 without a remainder.

1, 5, 13, 65, 169, 845

Divisors of 447

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

1, 3, 149, 447

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 240

List of positive integer divisors of 240 that divides 240 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240

Greatest Common Divisior

We found the divisors of 845, 447, 20, 240 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 845, 447, 20, 240 is 1.

Therefore, GCD of numbers 845, 447, 20, 240 is 1

Given Input Data is 845, 447, 20, 240

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

Prime Factorization of 845 is 5 x 13 x 13

Prime Factorization of 447 is 3 x 149

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 240 is 2 x 2 x 2 x 2 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(845, 447) = 377715

GCD(845, 447) = ( 845 x 447 ) / 377715

GCD(845, 447) = 377715 / 377715

GCD(845, 447) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 20

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

LCM(1, 20) = 20

GCD(1, 20) = ( 1 x 20 ) / 20

GCD(1, 20) = 20 / 20

GCD(1, 20) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 240

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

LCM(1, 240) = 240

GCD(1, 240) = ( 1 x 240 ) / 240

GCD(1, 240) = 240 / 240

GCD(1, 240) = 1

GCD of 845, 447, 20, 240 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 448, 553, 76, 937
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• GCD of 486, 214, 59, 928

1. What is the GCD of 845, 447, 20, 240?

GCD of 845, 447, 20, 240 is 1

2. Where do I get the detailed procedure to find GCD of 845, 447, 20, 240?

You can find a detailed procedure to find GCD of 845, 447, 20, 240 on our page.

3. How to find GCD of 845, 447, 20, 240 on a calculator?

You can find the GCD of 845, 447, 20, 240 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.