GCD of 850, 645, 324, 398 Calculator

Given Input numbers are 850, 645, 324, 398

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

Divisors of 850

List of positive integer divisors of 850 that divides 850 without a remainder.

1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850

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 324

List of positive integer divisors of 324 that divides 324 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324

Divisors of 398

List of positive integer divisors of 398 that divides 398 without a remainder.

1, 2, 199, 398

Greatest Common Divisior

We found the divisors of 850, 645, 324, 398 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 850, 645, 324, 398 is 1.

Therefore, GCD of numbers 850, 645, 324, 398 is 1

Given Input Data is 850, 645, 324, 398

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

Prime Factorization of 850 is 2 x 5 x 5 x 17

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 324 is 2 x 2 x 3 x 3 x 3 x 3

Prime Factorization of 398 is 2 x 199

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(850, 645) = 109650

GCD(850, 645) = ( 850 x 645 ) / 109650

GCD(850, 645) = 548250 / 109650

GCD(850, 645) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 324

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

LCM(5, 324) = 1620

GCD(5, 324) = ( 5 x 324 ) / 1620

GCD(5, 324) = 1620 / 1620

GCD(5, 324) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 398

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

LCM(1, 398) = 398

GCD(1, 398) = ( 1 x 398 ) / 398

GCD(1, 398) = 398 / 398

GCD(1, 398) = 1

GCD of 850, 645, 324, 398 is 1

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1. What is the GCD of 850, 645, 324, 398?

GCD of 850, 645, 324, 398 is 1

2. Where do I get the detailed procedure to find GCD of 850, 645, 324, 398?

You can find a detailed procedure to find GCD of 850, 645, 324, 398 on our page.

3. How to find GCD of 850, 645, 324, 398 on a calculator?

You can find the GCD of 850, 645, 324, 398 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.