GCD of 679, 447, 21, 425 Calculator

Given Input numbers are 679, 447, 21, 425

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

Divisors of 679

List of positive integer divisors of 679 that divides 679 without a remainder.

1, 7, 97, 679

Divisors of 447

List of positive integer divisors of 447 that divides 447 without a remainder.

1, 3, 149, 447

Divisors of 21

List of positive integer divisors of 21 that divides 21 without a remainder.

1, 3, 7, 21

Divisors of 425

List of positive integer divisors of 425 that divides 425 without a remainder.

1, 5, 17, 25, 85, 425

Greatest Common Divisior

We found the divisors of 679, 447, 21, 425 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 679, 447, 21, 425 is 1.

Therefore, GCD of numbers 679, 447, 21, 425 is 1

Given Input Data is 679, 447, 21, 425

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

Prime Factorization of 679 is 7 x 97

Prime Factorization of 447 is 3 x 149

Prime Factorization of 21 is 3 x 7

Prime Factorization of 425 is 5 x 5 x 17

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(679, 447) = 303513

GCD(679, 447) = ( 679 x 447 ) / 303513

GCD(679, 447) = 303513 / 303513

GCD(679, 447) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 21

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

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

GCD(1, 21) = 21 / 21

GCD(1, 21) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 425

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

LCM(1, 425) = 425

GCD(1, 425) = ( 1 x 425 ) / 425

GCD(1, 425) = 425 / 425

GCD(1, 425) = 1

GCD of 679, 447, 21, 425 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 373, 812, 21, 350
• GCD of 155, 455, 65, 605
• GCD of 424, 965, 80, 175
• GCD of 640, 703, 98, 807
• GCD of 962, 150, 53, 425

1. What is the GCD of 679, 447, 21, 425?

GCD of 679, 447, 21, 425 is 1

2. Where do I get the detailed procedure to find GCD of 679, 447, 21, 425?

You can find a detailed procedure to find GCD of 679, 447, 21, 425 on our page.

3. How to find GCD of 679, 447, 21, 425 on a calculator?

You can find the GCD of 679, 447, 21, 425 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.