GCD of 687, 670, 729, 238 Calculator

Given Input numbers are 687, 670, 729, 238

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

Divisors of 687

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

1, 3, 229, 687

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 729

List of positive integer divisors of 729 that divides 729 without a remainder.

1, 3, 9, 27, 81, 243, 729

Divisors of 238

List of positive integer divisors of 238 that divides 238 without a remainder.

1, 2, 7, 14, 17, 34, 119, 238

Greatest Common Divisior

We found the divisors of 687, 670, 729, 238 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 687, 670, 729, 238 is 1.

Therefore, GCD of numbers 687, 670, 729, 238 is 1

Given Input Data is 687, 670, 729, 238

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

Prime Factorization of 687 is 3 x 229

Prime Factorization of 670 is 2 x 5 x 67

Prime Factorization of 729 is 3 x 3 x 3 x 3 x 3 x 3

Prime Factorization of 238 is 2 x 7 x 17

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(687, 670) = 460290

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

GCD(687, 670) = 460290 / 460290

GCD(687, 670) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 729

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

LCM(1, 729) = 729

GCD(1, 729) = ( 1 x 729 ) / 729

GCD(1, 729) = 729 / 729

GCD(1, 729) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 238

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

LCM(1, 238) = 238

GCD(1, 238) = ( 1 x 238 ) / 238

GCD(1, 238) = 238 / 238

GCD(1, 238) = 1

GCD of 687, 670, 729, 238 is 1

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• GCD of 293, 144, 928, 951
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• GCD of 485, 830, 882, 399

1. What is the GCD of 687, 670, 729, 238?

GCD of 687, 670, 729, 238 is 1

2. Where do I get the detailed procedure to find GCD of 687, 670, 729, 238?

You can find a detailed procedure to find GCD of 687, 670, 729, 238 on our page.

3. How to find GCD of 687, 670, 729, 238 on a calculator?

You can find the GCD of 687, 670, 729, 238 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.