GCD of 685, 423, 305 Calculator

Given Input numbers are 685, 423, 305

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

Divisors of 685

List of positive integer divisors of 685 that divides 685 without a remainder.

1, 5, 137, 685

Divisors of 423

List of positive integer divisors of 423 that divides 423 without a remainder.

1, 3, 9, 47, 141, 423

Divisors of 305

List of positive integer divisors of 305 that divides 305 without a remainder.

1, 5, 61, 305

Greatest Common Divisior

We found the divisors of 685, 423, 305 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 685, 423, 305 is 1.

Therefore, GCD of numbers 685, 423, 305 is 1

Given Input Data is 685, 423, 305

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

Prime Factorization of 685 is 5 x 137

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 305 is 5 x 61

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(685, 423) = 289755

GCD(685, 423) = ( 685 x 423 ) / 289755

GCD(685, 423) = 289755 / 289755

GCD(685, 423) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 305

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

LCM(1, 305) = 305

GCD(1, 305) = ( 1 x 305 ) / 305

GCD(1, 305) = 305 / 305

GCD(1, 305) = 1

GCD of 685, 423, 305 is 1

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• GCD of 288, 540, 732
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1. What is the GCD of 685, 423, 305?

GCD of 685, 423, 305 is 1

2. Where do I get the detailed procedure to find GCD of 685, 423, 305?

You can find a detailed procedure to find GCD of 685, 423, 305 on our page.

3. How to find GCD of 685, 423, 305 on a calculator?

You can find the GCD of 685, 423, 305 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.