GCD of 663, 743, 20, 487 Calculator

Given Input numbers are 663, 743, 20, 487

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

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 743

List of positive integer divisors of 743 that divides 743 without a remainder.

1, 743

Divisors of 20

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

1, 2, 4, 5, 10, 20

Divisors of 487

List of positive integer divisors of 487 that divides 487 without a remainder.

1, 487

Greatest Common Divisior

We found the divisors of 663, 743, 20, 487 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 743, 20, 487 is 1.

Therefore, GCD of numbers 663, 743, 20, 487 is 1

Given Input Data is 663, 743, 20, 487

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

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 743 is 743

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 487 is 487

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(663, 743) = 492609

GCD(663, 743) = ( 663 x 743 ) / 492609

GCD(663, 743) = 492609 / 492609

GCD(663, 743) = 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 487

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

LCM(1, 487) = 487

GCD(1, 487) = ( 1 x 487 ) / 487

GCD(1, 487) = 487 / 487

GCD(1, 487) = 1

GCD of 663, 743, 20, 487 is 1

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• GCD of 155, 947, 28, 734
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• GCD of 784, 171, 37, 230
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1. What is the GCD of 663, 743, 20, 487?

GCD of 663, 743, 20, 487 is 1

2. Where do I get the detailed procedure to find GCD of 663, 743, 20, 487?

You can find a detailed procedure to find GCD of 663, 743, 20, 487 on our page.

3. How to find GCD of 663, 743, 20, 487 on a calculator?

You can find the GCD of 663, 743, 20, 487 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.