GCD of 28, 695, 290, 287 Calculator

Given Input numbers are 28, 695, 290, 287

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

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 695

List of positive integer divisors of 695 that divides 695 without a remainder.

1, 5, 139, 695

Divisors of 290

List of positive integer divisors of 290 that divides 290 without a remainder.

1, 2, 5, 10, 29, 58, 145, 290

Divisors of 287

List of positive integer divisors of 287 that divides 287 without a remainder.

1, 7, 41, 287

Greatest Common Divisior

We found the divisors of 28, 695, 290, 287 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 28, 695, 290, 287 is 1.

Therefore, GCD of numbers 28, 695, 290, 287 is 1

Given Input Data is 28, 695, 290, 287

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

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 695 is 5 x 139

Prime Factorization of 290 is 2 x 5 x 29

Prime Factorization of 287 is 7 x 41

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(28, 695) = 19460

GCD(28, 695) = ( 28 x 695 ) / 19460

GCD(28, 695) = 19460 / 19460

GCD(28, 695) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 290

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

LCM(1, 290) = 290

GCD(1, 290) = ( 1 x 290 ) / 290

GCD(1, 290) = 290 / 290

GCD(1, 290) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 287

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

LCM(1, 287) = 287

GCD(1, 287) = ( 1 x 287 ) / 287

GCD(1, 287) = 287 / 287

GCD(1, 287) = 1

GCD of 28, 695, 290, 287 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 28, 893, 913, 463
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• GCD of 11, 125, 516, 237

1. What is the GCD of 28, 695, 290, 287?

GCD of 28, 695, 290, 287 is 1

2. Where do I get the detailed procedure to find GCD of 28, 695, 290, 287?

You can find a detailed procedure to find GCD of 28, 695, 290, 287 on our page.

3. How to find GCD of 28, 695, 290, 287 on a calculator?

You can find the GCD of 28, 695, 290, 287 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.