GCD of 663, 253, 540, 247 Calculator

Given Input numbers are 663, 253, 540, 247

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 253

List of positive integer divisors of 253 that divides 253 without a remainder.

1, 11, 23, 253

Divisors of 540

List of positive integer divisors of 540 that divides 540 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Greatest Common Divisior

We found the divisors of 663, 253, 540, 247 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 253, 540, 247 is 1.

Therefore, GCD of numbers 663, 253, 540, 247 is 1

Given Input Data is 663, 253, 540, 247

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 253 is 11 x 23

Prime Factorization of 540 is 2 x 2 x 3 x 3 x 3 x 5

Prime Factorization of 247 is 13 x 19

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, 253) = 167739

GCD(663, 253) = ( 663 x 253 ) / 167739

GCD(663, 253) = 167739 / 167739

GCD(663, 253) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 540

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

LCM(1, 540) = 540

GCD(1, 540) = ( 1 x 540 ) / 540

GCD(1, 540) = 540 / 540

GCD(1, 540) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 247

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

LCM(1, 247) = 247

GCD(1, 247) = ( 1 x 247 ) / 247

GCD(1, 247) = 247 / 247

GCD(1, 247) = 1

GCD of 663, 253, 540, 247 is 1

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1. What is the GCD of 663, 253, 540, 247?

GCD of 663, 253, 540, 247 is 1

2. Where do I get the detailed procedure to find GCD of 663, 253, 540, 247?

You can find a detailed procedure to find GCD of 663, 253, 540, 247 on our page.

3. How to find GCD of 663, 253, 540, 247 on a calculator?

You can find the GCD of 663, 253, 540, 247 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.