GCD of 639, 493, 40, 424 Calculator

Given Input numbers are 639, 493, 40, 424

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

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 493

List of positive integer divisors of 493 that divides 493 without a remainder.

1, 17, 29, 493

Divisors of 40

List of positive integer divisors of 40 that divides 40 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40

Divisors of 424

List of positive integer divisors of 424 that divides 424 without a remainder.

1, 2, 4, 8, 53, 106, 212, 424

Greatest Common Divisior

We found the divisors of 639, 493, 40, 424 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 493, 40, 424 is 1.

Therefore, GCD of numbers 639, 493, 40, 424 is 1

Given Input Data is 639, 493, 40, 424

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 493 is 17 x 29

Prime Factorization of 40 is 2 x 2 x 2 x 5

Prime Factorization of 424 is 2 x 2 x 2 x 53

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(639, 493) = 315027

GCD(639, 493) = ( 639 x 493 ) / 315027

GCD(639, 493) = 315027 / 315027

GCD(639, 493) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 40

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

LCM(1, 40) = 40

GCD(1, 40) = ( 1 x 40 ) / 40

GCD(1, 40) = 40 / 40

GCD(1, 40) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 424

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

LCM(1, 424) = 424

GCD(1, 424) = ( 1 x 424 ) / 424

GCD(1, 424) = 424 / 424

GCD(1, 424) = 1

GCD of 639, 493, 40, 424 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 704, 831, 72, 181
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• GCD of 408, 364, 72, 394
• GCD of 669, 429, 73, 738
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1. What is the GCD of 639, 493, 40, 424?

GCD of 639, 493, 40, 424 is 1

2. Where do I get the detailed procedure to find GCD of 639, 493, 40, 424?

You can find a detailed procedure to find GCD of 639, 493, 40, 424 on our page.

3. How to find GCD of 639, 493, 40, 424 on a calculator?

You can find the GCD of 639, 493, 40, 424 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.