GCD of 642, 771, 281 Calculator

Given Input numbers are 642, 771, 281

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

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Divisors of 281

List of positive integer divisors of 281 that divides 281 without a remainder.

1, 281

Greatest Common Divisior

We found the divisors of 642, 771, 281 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 771, 281 is 1.

Therefore, GCD of numbers 642, 771, 281 is 1

Given Input Data is 642, 771, 281

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 771 is 3 x 257

Prime Factorization of 281 is 281

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(642, 771) = 164994

GCD(642, 771) = ( 642 x 771 ) / 164994

GCD(642, 771) = 494982 / 164994

GCD(642, 771) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 281

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

LCM(3, 281) = 843

GCD(3, 281) = ( 3 x 281 ) / 843

GCD(3, 281) = 843 / 843

GCD(3, 281) = 1

GCD of 642, 771, 281 is 1

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1. What is the GCD of 642, 771, 281?

GCD of 642, 771, 281 is 1

2. Where do I get the detailed procedure to find GCD of 642, 771, 281?

You can find a detailed procedure to find GCD of 642, 771, 281 on our page.

3. How to find GCD of 642, 771, 281 on a calculator?

You can find the GCD of 642, 771, 281 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.