GCD of 655, 531, 635, 720 Calculator

Given Input numbers are 655, 531, 635, 720

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

Divisors of 655

List of positive integer divisors of 655 that divides 655 without a remainder.

1, 5, 131, 655

Divisors of 531

List of positive integer divisors of 531 that divides 531 without a remainder.

1, 3, 9, 59, 177, 531

Divisors of 635

List of positive integer divisors of 635 that divides 635 without a remainder.

1, 5, 127, 635

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 655, 531, 635, 720 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 531, 635, 720 is 1.

Therefore, GCD of numbers 655, 531, 635, 720 is 1

Given Input Data is 655, 531, 635, 720

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 531 is 3 x 3 x 59

Prime Factorization of 635 is 5 x 127

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(655, 531) = 347805

GCD(655, 531) = ( 655 x 531 ) / 347805

GCD(655, 531) = 347805 / 347805

GCD(655, 531) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 635

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

LCM(1, 635) = 635

GCD(1, 635) = ( 1 x 635 ) / 635

GCD(1, 635) = 635 / 635

GCD(1, 635) = 1

Step3:

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 655, 531, 635, 720 is 1

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1. What is the GCD of 655, 531, 635, 720?

GCD of 655, 531, 635, 720 is 1

2. Where do I get the detailed procedure to find GCD of 655, 531, 635, 720?

You can find a detailed procedure to find GCD of 655, 531, 635, 720 on our page.

3. How to find GCD of 655, 531, 635, 720 on a calculator?

You can find the GCD of 655, 531, 635, 720 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.