GCD of 640, 270, 43, 489 Calculator

Given Input numbers are 640, 270, 43, 489

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 270

List of positive integer divisors of 270 that divides 270 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270

Divisors of 43

List of positive integer divisors of 43 that divides 43 without a remainder.

1, 43

Divisors of 489

List of positive integer divisors of 489 that divides 489 without a remainder.

1, 3, 163, 489

Greatest Common Divisior

We found the divisors of 640, 270, 43, 489 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 640, 270, 43, 489 is 1.

Therefore, GCD of numbers 640, 270, 43, 489 is 1

Given Input Data is 640, 270, 43, 489

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 270 is 2 x 3 x 3 x 3 x 5

Prime Factorization of 43 is 43

Prime Factorization of 489 is 3 x 163

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, 270) = 17280

GCD(640, 270) = ( 640 x 270 ) / 17280

GCD(640, 270) = 172800 / 17280

GCD(640, 270) = 10

Step2:

Here we consider the GCD from the above i.e. 10 as first number and the next as 43

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

LCM(10, 43) = 430

GCD(10, 43) = ( 10 x 43 ) / 430

GCD(10, 43) = 430 / 430

GCD(10, 43) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 489

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

LCM(1, 489) = 489

GCD(1, 489) = ( 1 x 489 ) / 489

GCD(1, 489) = 489 / 489

GCD(1, 489) = 1

GCD of 640, 270, 43, 489 is 1

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• GCD of 660, 733, 61, 669
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• GCD of 447, 578, 20, 158

1. What is the GCD of 640, 270, 43, 489?

GCD of 640, 270, 43, 489 is 1

2. Where do I get the detailed procedure to find GCD of 640, 270, 43, 489?

You can find a detailed procedure to find GCD of 640, 270, 43, 489 on our page.

3. How to find GCD of 640, 270, 43, 489 on a calculator?

You can find the GCD of 640, 270, 43, 489 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.