GCD of 641, 245, 284, 489 Calculator

Given Input numbers are 641, 245, 284, 489

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

Divisors of 641

List of positive integer divisors of 641 that divides 641 without a remainder.

1, 641

Divisors of 245

List of positive integer divisors of 245 that divides 245 without a remainder.

1, 5, 7, 35, 49, 245

Divisors of 284

List of positive integer divisors of 284 that divides 284 without a remainder.

1, 2, 4, 71, 142, 284

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 641, 245, 284, 489 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 641, 245, 284, 489 is 1.

Therefore, GCD of numbers 641, 245, 284, 489 is 1

Given Input Data is 641, 245, 284, 489

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

Prime Factorization of 641 is 641

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 284 is 2 x 2 x 71

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(641, 245) = 157045

GCD(641, 245) = ( 641 x 245 ) / 157045

GCD(641, 245) = 157045 / 157045

GCD(641, 245) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 284

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

LCM(1, 284) = 284

GCD(1, 284) = ( 1 x 284 ) / 284

GCD(1, 284) = 284 / 284

GCD(1, 284) = 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 641, 245, 284, 489 is 1

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1. What is the GCD of 641, 245, 284, 489?

GCD of 641, 245, 284, 489 is 1

2. Where do I get the detailed procedure to find GCD of 641, 245, 284, 489?

You can find a detailed procedure to find GCD of 641, 245, 284, 489 on our page.

3. How to find GCD of 641, 245, 284, 489 on a calculator?

You can find the GCD of 641, 245, 284, 489 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.