GCD of 683, 470, 81, 987 Calculator

Given Input numbers are 683, 470, 81, 987

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

Divisors of 683

List of positive integer divisors of 683 that divides 683 without a remainder.

1, 683

Divisors of 470

List of positive integer divisors of 470 that divides 470 without a remainder.

1, 2, 5, 10, 47, 94, 235, 470

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 987

List of positive integer divisors of 987 that divides 987 without a remainder.

1, 3, 7, 21, 47, 141, 329, 987

Greatest Common Divisior

We found the divisors of 683, 470, 81, 987 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 683, 470, 81, 987 is 1.

Therefore, GCD of numbers 683, 470, 81, 987 is 1

Given Input Data is 683, 470, 81, 987

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

Prime Factorization of 683 is 683

Prime Factorization of 470 is 2 x 5 x 47

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 987 is 3 x 7 x 47

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(683, 470) = 321010

GCD(683, 470) = ( 683 x 470 ) / 321010

GCD(683, 470) = 321010 / 321010

GCD(683, 470) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 987

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

LCM(1, 987) = 987

GCD(1, 987) = ( 1 x 987 ) / 987

GCD(1, 987) = 987 / 987

GCD(1, 987) = 1

GCD of 683, 470, 81, 987 is 1

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1. What is the GCD of 683, 470, 81, 987?

GCD of 683, 470, 81, 987 is 1

2. Where do I get the detailed procedure to find GCD of 683, 470, 81, 987?

You can find a detailed procedure to find GCD of 683, 470, 81, 987 on our page.

3. How to find GCD of 683, 470, 81, 987 on a calculator?

You can find the GCD of 683, 470, 81, 987 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.