GCD of 684, 280, 815 Calculator

Given Input numbers are 684, 280, 815

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

Divisors of 684

List of positive integer divisors of 684 that divides 684 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684

Divisors of 280

List of positive integer divisors of 280 that divides 280 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

Divisors of 815

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

1, 5, 163, 815

Greatest Common Divisior

We found the divisors of 684, 280, 815 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 684, 280, 815 is 1.

Therefore, GCD of numbers 684, 280, 815 is 1

Given Input Data is 684, 280, 815

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

Prime Factorization of 684 is 2 x 2 x 3 x 3 x 19

Prime Factorization of 280 is 2 x 2 x 2 x 5 x 7

Prime Factorization of 815 is 5 x 163

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(684, 280) = 47880

GCD(684, 280) = ( 684 x 280 ) / 47880

GCD(684, 280) = 191520 / 47880

GCD(684, 280) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 815

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

LCM(4, 815) = 3260

GCD(4, 815) = ( 4 x 815 ) / 3260

GCD(4, 815) = 3260 / 3260

GCD(4, 815) = 1

GCD of 684, 280, 815 is 1

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• GCD of 944, 785, 204
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1. What is the GCD of 684, 280, 815?

GCD of 684, 280, 815 is 1

2. Where do I get the detailed procedure to find GCD of 684, 280, 815?

You can find a detailed procedure to find GCD of 684, 280, 815 on our page.

3. How to find GCD of 684, 280, 815 on a calculator?

You can find the GCD of 684, 280, 815 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.