GCD of 640, 663, 665, 799 Calculator

Given Input numbers are 640, 663, 665, 799

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

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 799

List of positive integer divisors of 799 that divides 799 without a remainder.

1, 17, 47, 799

Greatest Common Divisior

We found the divisors of 640, 663, 665, 799 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 640, 663, 665, 799 is 1.

Therefore, GCD of numbers 640, 663, 665, 799 is 1

Given Input Data is 640, 663, 665, 799

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

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 665 is 5 x 7 x 19

Prime Factorization of 799 is 17 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(640, 663) = 424320

GCD(640, 663) = ( 640 x 663 ) / 424320

GCD(640, 663) = 424320 / 424320

GCD(640, 663) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 665

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

LCM(1, 665) = 665

GCD(1, 665) = ( 1 x 665 ) / 665

GCD(1, 665) = 665 / 665

GCD(1, 665) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 799

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

LCM(1, 799) = 799

GCD(1, 799) = ( 1 x 799 ) / 799

GCD(1, 799) = 799 / 799

GCD(1, 799) = 1

GCD of 640, 663, 665, 799 is 1

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1. What is the GCD of 640, 663, 665, 799?

GCD of 640, 663, 665, 799 is 1

2. Where do I get the detailed procedure to find GCD of 640, 663, 665, 799?

You can find a detailed procedure to find GCD of 640, 663, 665, 799 on our page.

3. How to find GCD of 640, 663, 665, 799 on a calculator?

You can find the GCD of 640, 663, 665, 799 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.