GCD of 670, 687, 855 Calculator

Given Input numbers are 670, 687, 855

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

Divisors of 670

List of positive integer divisors of 670 that divides 670 without a remainder.

1, 2, 5, 10, 67, 134, 335, 670

Divisors of 687

List of positive integer divisors of 687 that divides 687 without a remainder.

1, 3, 229, 687

Divisors of 855

List of positive integer divisors of 855 that divides 855 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Greatest Common Divisior

We found the divisors of 670, 687, 855 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 670, 687, 855 is 1.

Therefore, GCD of numbers 670, 687, 855 is 1

Given Input Data is 670, 687, 855

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

Prime Factorization of 670 is 2 x 5 x 67

Prime Factorization of 687 is 3 x 229

Prime Factorization of 855 is 3 x 3 x 5 x 19

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(670, 687) = 460290

GCD(670, 687) = ( 670 x 687 ) / 460290

GCD(670, 687) = 460290 / 460290

GCD(670, 687) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 855

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

LCM(1, 855) = 855

GCD(1, 855) = ( 1 x 855 ) / 855

GCD(1, 855) = 855 / 855

GCD(1, 855) = 1

GCD of 670, 687, 855 is 1

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1. What is the GCD of 670, 687, 855?

GCD of 670, 687, 855 is 1

2. Where do I get the detailed procedure to find GCD of 670, 687, 855?

You can find a detailed procedure to find GCD of 670, 687, 855 on our page.

3. How to find GCD of 670, 687, 855 on a calculator?

You can find the GCD of 670, 687, 855 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.