GCD of 221, 207, 89, 720 Calculator

Given Input numbers are 221, 207, 89, 720

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

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 207

List of positive integer divisors of 207 that divides 207 without a remainder.

1, 3, 9, 23, 69, 207

Divisors of 89

List of positive integer divisors of 89 that divides 89 without a remainder.

1, 89

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 221, 207, 89, 720 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 207, 89, 720 is 1.

Therefore, GCD of numbers 221, 207, 89, 720 is 1

Given Input Data is 221, 207, 89, 720

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 207 is 3 x 3 x 23

Prime Factorization of 89 is 89

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(221, 207) = 45747

GCD(221, 207) = ( 221 x 207 ) / 45747

GCD(221, 207) = 45747 / 45747

GCD(221, 207) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 89

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

LCM(1, 89) = 89

GCD(1, 89) = ( 1 x 89 ) / 89

GCD(1, 89) = 89 / 89

GCD(1, 89) = 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 221, 207, 89, 720 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 434, 290, 92, 979
• GCD of 800, 167, 85, 652
• GCD of 654, 817, 50, 703
• GCD of 589, 168, 48, 694
• GCD of 166, 395, 17, 468

1. What is the GCD of 221, 207, 89, 720?

GCD of 221, 207, 89, 720 is 1

2. Where do I get the detailed procedure to find GCD of 221, 207, 89, 720?

You can find a detailed procedure to find GCD of 221, 207, 89, 720 on our page.

3. How to find GCD of 221, 207, 89, 720 on a calculator?

You can find the GCD of 221, 207, 89, 720 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.