GCD of 216, 115, 249, 642 Calculator

Given Input numbers are 216, 115, 249, 642

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

Divisors of 216

List of positive integer divisors of 216 that divides 216 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216

Divisors of 115

List of positive integer divisors of 115 that divides 115 without a remainder.

1, 5, 23, 115

Divisors of 249

List of positive integer divisors of 249 that divides 249 without a remainder.

1, 3, 83, 249

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Greatest Common Divisior

We found the divisors of 216, 115, 249, 642 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 216, 115, 249, 642 is 1.

Therefore, GCD of numbers 216, 115, 249, 642 is 1

Given Input Data is 216, 115, 249, 642

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

Prime Factorization of 216 is 2 x 2 x 2 x 3 x 3 x 3

Prime Factorization of 115 is 5 x 23

Prime Factorization of 249 is 3 x 83

Prime Factorization of 642 is 2 x 3 x 107

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(216, 115) = 24840

GCD(216, 115) = ( 216 x 115 ) / 24840

GCD(216, 115) = 24840 / 24840

GCD(216, 115) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 249

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

LCM(1, 249) = 249

GCD(1, 249) = ( 1 x 249 ) / 249

GCD(1, 249) = 249 / 249

GCD(1, 249) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 642

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

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

GCD(1, 642) = 642 / 642

GCD(1, 642) = 1

GCD of 216, 115, 249, 642 is 1

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• GCD of 155, 365, 304, 797
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1. What is the GCD of 216, 115, 249, 642?

GCD of 216, 115, 249, 642 is 1

2. Where do I get the detailed procedure to find GCD of 216, 115, 249, 642?

You can find a detailed procedure to find GCD of 216, 115, 249, 642 on our page.

3. How to find GCD of 216, 115, 249, 642 on a calculator?

You can find the GCD of 216, 115, 249, 642 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.