GCD of 445, 439, 690, 249 Calculator

Given Input numbers are 445, 439, 690, 249

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

Divisors of 445

List of positive integer divisors of 445 that divides 445 without a remainder.

1, 5, 89, 445

Divisors of 439

List of positive integer divisors of 439 that divides 439 without a remainder.

1, 439

Divisors of 690

List of positive integer divisors of 690 that divides 690 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 249

List of positive integer divisors of 249 that divides 249 without a remainder.

1, 3, 83, 249

Greatest Common Divisior

We found the divisors of 445, 439, 690, 249 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 445, 439, 690, 249 is 1.

Therefore, GCD of numbers 445, 439, 690, 249 is 1

Given Input Data is 445, 439, 690, 249

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

Prime Factorization of 445 is 5 x 89

Prime Factorization of 439 is 439

Prime Factorization of 690 is 2 x 3 x 5 x 23

Prime Factorization of 249 is 3 x 83

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(445, 439) = 195355

GCD(445, 439) = ( 445 x 439 ) / 195355

GCD(445, 439) = 195355 / 195355

GCD(445, 439) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 690

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

LCM(1, 690) = 690

GCD(1, 690) = ( 1 x 690 ) / 690

GCD(1, 690) = 690 / 690

GCD(1, 690) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 249

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

LCM(1, 249) = 249

GCD(1, 249) = ( 1 x 249 ) / 249

GCD(1, 249) = 249 / 249

GCD(1, 249) = 1

GCD of 445, 439, 690, 249 is 1

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1. What is the GCD of 445, 439, 690, 249?

GCD of 445, 439, 690, 249 is 1

2. Where do I get the detailed procedure to find GCD of 445, 439, 690, 249?

You can find a detailed procedure to find GCD of 445, 439, 690, 249 on our page.

3. How to find GCD of 445, 439, 690, 249 on a calculator?

You can find the GCD of 445, 439, 690, 249 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.