GCD of 815, 128, 860 Calculator

Given Input numbers are 815, 128, 860

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

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 860

List of positive integer divisors of 860 that divides 860 without a remainder.

1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

Greatest Common Divisior

We found the divisors of 815, 128, 860 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 815, 128, 860 is 1.

Therefore, GCD of numbers 815, 128, 860 is 1

Given Input Data is 815, 128, 860

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

Prime Factorization of 815 is 5 x 163

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 860 is 2 x 2 x 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(815, 128) = 104320

GCD(815, 128) = ( 815 x 128 ) / 104320

GCD(815, 128) = 104320 / 104320

GCD(815, 128) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 860

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

LCM(1, 860) = 860

GCD(1, 860) = ( 1 x 860 ) / 860

GCD(1, 860) = 860 / 860

GCD(1, 860) = 1

GCD of 815, 128, 860 is 1

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1. What is the GCD of 815, 128, 860?

GCD of 815, 128, 860 is 1

2. Where do I get the detailed procedure to find GCD of 815, 128, 860?

You can find a detailed procedure to find GCD of 815, 128, 860 on our page.

3. How to find GCD of 815, 128, 860 on a calculator?

You can find the GCD of 815, 128, 860 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.