GCD of 291, 645, 212 Calculator

Given Input numbers are 291, 645, 212

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

Divisors of 291

List of positive integer divisors of 291 that divides 291 without a remainder.

1, 3, 97, 291

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 212

List of positive integer divisors of 212 that divides 212 without a remainder.

1, 2, 4, 53, 106, 212

Greatest Common Divisior

We found the divisors of 291, 645, 212 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 291, 645, 212 is 1.

Therefore, GCD of numbers 291, 645, 212 is 1

Given Input Data is 291, 645, 212

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

Prime Factorization of 291 is 3 x 97

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 212 is 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(291, 645) = 62565

GCD(291, 645) = ( 291 x 645 ) / 62565

GCD(291, 645) = 187695 / 62565

GCD(291, 645) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 212

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

LCM(3, 212) = 636

GCD(3, 212) = ( 3 x 212 ) / 636

GCD(3, 212) = 636 / 636

GCD(3, 212) = 1

GCD of 291, 645, 212 is 1

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1. What is the GCD of 291, 645, 212?

GCD of 291, 645, 212 is 1

2. Where do I get the detailed procedure to find GCD of 291, 645, 212?

You can find a detailed procedure to find GCD of 291, 645, 212 on our page.

3. How to find GCD of 291, 645, 212 on a calculator?

You can find the GCD of 291, 645, 212 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.