GCD of 487, 247, 79, 399 Calculator

Given Input numbers are 487, 247, 79, 399

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

Divisors of 487

List of positive integer divisors of 487 that divides 487 without a remainder.

1, 487

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Greatest Common Divisior

We found the divisors of 487, 247, 79, 399 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 487, 247, 79, 399 is 1.

Therefore, GCD of numbers 487, 247, 79, 399 is 1

Given Input Data is 487, 247, 79, 399

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

Prime Factorization of 487 is 487

Prime Factorization of 247 is 13 x 19

Prime Factorization of 79 is 79

Prime Factorization of 399 is 3 x 7 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(487, 247) = 120289

GCD(487, 247) = ( 487 x 247 ) / 120289

GCD(487, 247) = 120289 / 120289

GCD(487, 247) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 79

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

LCM(1, 79) = 79

GCD(1, 79) = ( 1 x 79 ) / 79

GCD(1, 79) = 79 / 79

GCD(1, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 399

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

LCM(1, 399) = 399

GCD(1, 399) = ( 1 x 399 ) / 399

GCD(1, 399) = 399 / 399

GCD(1, 399) = 1

GCD of 487, 247, 79, 399 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 964, 790, 38, 904
• GCD of 833, 404, 28, 413
• GCD of 662, 582, 24, 488
• GCD of 137, 920, 18, 782
• GCD of 642, 683, 14, 617

1. What is the GCD of 487, 247, 79, 399?

GCD of 487, 247, 79, 399 is 1

2. Where do I get the detailed procedure to find GCD of 487, 247, 79, 399?

You can find a detailed procedure to find GCD of 487, 247, 79, 399 on our page.

3. How to find GCD of 487, 247, 79, 399 on a calculator?

You can find the GCD of 487, 247, 79, 399 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.