GCD of 663, 218, 718, 561 Calculator

Given Input numbers are 663, 218, 718, 561

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 218

List of positive integer divisors of 218 that divides 218 without a remainder.

1, 2, 109, 218

Divisors of 718

List of positive integer divisors of 718 that divides 718 without a remainder.

1, 2, 359, 718

Divisors of 561

List of positive integer divisors of 561 that divides 561 without a remainder.

1, 3, 11, 17, 33, 51, 187, 561

Greatest Common Divisior

We found the divisors of 663, 218, 718, 561 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 218, 718, 561 is 1.

Therefore, GCD of numbers 663, 218, 718, 561 is 1

Given Input Data is 663, 218, 718, 561

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 218 is 2 x 109

Prime Factorization of 718 is 2 x 359

Prime Factorization of 561 is 3 x 11 x 17

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, 218) = 144534

GCD(663, 218) = ( 663 x 218 ) / 144534

GCD(663, 218) = 144534 / 144534

GCD(663, 218) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 718

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

LCM(1, 718) = 718

GCD(1, 718) = ( 1 x 718 ) / 718

GCD(1, 718) = 718 / 718

GCD(1, 718) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 561

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

LCM(1, 561) = 561

GCD(1, 561) = ( 1 x 561 ) / 561

GCD(1, 561) = 561 / 561

GCD(1, 561) = 1

GCD of 663, 218, 718, 561 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 350, 423, 560, 956
• GCD of 488, 596, 545, 428
• GCD of 359, 134, 199, 195
• GCD of 152, 429, 723, 624
• GCD of 964, 183, 611, 298

1. What is the GCD of 663, 218, 718, 561?

GCD of 663, 218, 718, 561 is 1

2. Where do I get the detailed procedure to find GCD of 663, 218, 718, 561?

You can find a detailed procedure to find GCD of 663, 218, 718, 561 on our page.

3. How to find GCD of 663, 218, 718, 561 on a calculator?

You can find the GCD of 663, 218, 718, 561 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.