GCD of 423, 245, 79, 285 Calculator

Given Input numbers are 423, 245, 79, 285

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

Divisors of 423

List of positive integer divisors of 423 that divides 423 without a remainder.

1, 3, 9, 47, 141, 423

Divisors of 245

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

1, 5, 7, 35, 49, 245

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 285

List of positive integer divisors of 285 that divides 285 without a remainder.

1, 3, 5, 15, 19, 57, 95, 285

Greatest Common Divisior

We found the divisors of 423, 245, 79, 285 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 423, 245, 79, 285 is 1.

Therefore, GCD of numbers 423, 245, 79, 285 is 1

Given Input Data is 423, 245, 79, 285

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

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 79 is 79

Prime Factorization of 285 is 3 x 5 x 19

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(423, 245) = 103635

GCD(423, 245) = ( 423 x 245 ) / 103635

GCD(423, 245) = 103635 / 103635

GCD(423, 245) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 79

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

LCM(1, 79) = 79

GCD(1, 79) = ( 1 x 79 ) / 79

GCD(1, 79) = 79 / 79

GCD(1, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 285

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

LCM(1, 285) = 285

GCD(1, 285) = ( 1 x 285 ) / 285

GCD(1, 285) = 285 / 285

GCD(1, 285) = 1

GCD of 423, 245, 79, 285 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 946, 111, 57, 736
• GCD of 312, 886, 74, 708
• GCD of 213, 521, 20, 310
• GCD of 436, 176, 62, 932
• GCD of 531, 330, 45, 314

1. What is the GCD of 423, 245, 79, 285?

GCD of 423, 245, 79, 285 is 1

2. Where do I get the detailed procedure to find GCD of 423, 245, 79, 285?

You can find a detailed procedure to find GCD of 423, 245, 79, 285 on our page.

3. How to find GCD of 423, 245, 79, 285 on a calculator?

You can find the GCD of 423, 245, 79, 285 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.