GCD of 215, 127, 15, 720 Calculator

Given Input numbers are 215, 127, 15, 720

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

Divisors of 215

List of positive integer divisors of 215 that divides 215 without a remainder.

1, 5, 43, 215

Divisors of 127

List of positive integer divisors of 127 that divides 127 without a remainder.

1, 127

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

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 215, 127, 15, 720 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 215, 127, 15, 720 is 1.

Therefore, GCD of numbers 215, 127, 15, 720 is 1

Given Input Data is 215, 127, 15, 720

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

Prime Factorization of 215 is 5 x 43

Prime Factorization of 127 is 127

Prime Factorization of 15 is 3 x 5

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(215, 127) = 27305

GCD(215, 127) = ( 215 x 127 ) / 27305

GCD(215, 127) = 27305 / 27305

GCD(215, 127) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 15

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

LCM(1, 15) = 15

GCD(1, 15) = ( 1 x 15 ) / 15

GCD(1, 15) = 15 / 15

GCD(1, 15) = 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 215, 127, 15, 720 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 516, 316, 55, 139
• GCD of 743, 975, 42, 514
• GCD of 114, 404, 23, 243
• GCD of 128, 651, 69, 885
• GCD of 797, 908, 25, 337

1. What is the GCD of 215, 127, 15, 720?

GCD of 215, 127, 15, 720 is 1

2. Where do I get the detailed procedure to find GCD of 215, 127, 15, 720?

You can find a detailed procedure to find GCD of 215, 127, 15, 720 on our page.

3. How to find GCD of 215, 127, 15, 720 on a calculator?

You can find the GCD of 215, 127, 15, 720 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.