GCD of 15, 187, 491, 215 Calculator

Given Input numbers are 15, 187, 491, 215

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

Divisors of 15

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

1, 3, 5, 15

Divisors of 187

List of positive integer divisors of 187 that divides 187 without a remainder.

1, 11, 17, 187

Divisors of 491

List of positive integer divisors of 491 that divides 491 without a remainder.

1, 491

Divisors of 215

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

1, 5, 43, 215

Greatest Common Divisior

We found the divisors of 15, 187, 491, 215 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 15, 187, 491, 215 is 1.

Therefore, GCD of numbers 15, 187, 491, 215 is 1

Given Input Data is 15, 187, 491, 215

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

Prime Factorization of 15 is 3 x 5

Prime Factorization of 187 is 11 x 17

Prime Factorization of 491 is 491

Prime Factorization of 215 is 5 x 43

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(15, 187) = 2805

GCD(15, 187) = ( 15 x 187 ) / 2805

GCD(15, 187) = 2805 / 2805

GCD(15, 187) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 491

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

LCM(1, 491) = 491

GCD(1, 491) = ( 1 x 491 ) / 491

GCD(1, 491) = 491 / 491

GCD(1, 491) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 215

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

LCM(1, 215) = 215

GCD(1, 215) = ( 1 x 215 ) / 215

GCD(1, 215) = 215 / 215

GCD(1, 215) = 1

GCD of 15, 187, 491, 215 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 67, 275, 368, 768
• GCD of 55, 808, 851, 432
• GCD of 10, 968, 299, 423
• GCD of 87, 792, 455, 181
• GCD of 26, 141, 692, 365

1. What is the GCD of 15, 187, 491, 215?

GCD of 15, 187, 491, 215 is 1

2. Where do I get the detailed procedure to find GCD of 15, 187, 491, 215?

You can find a detailed procedure to find GCD of 15, 187, 491, 215 on our page.

3. How to find GCD of 15, 187, 491, 215 on a calculator?

You can find the GCD of 15, 187, 491, 215 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.