GCD of 851, 653, 12, 421 Calculator

Given Input numbers are 851, 653, 12, 421

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

Divisors of 851

List of positive integer divisors of 851 that divides 851 without a remainder.

1, 23, 37, 851

Divisors of 653

List of positive integer divisors of 653 that divides 653 without a remainder.

1, 653

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Greatest Common Divisior

We found the divisors of 851, 653, 12, 421 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 851, 653, 12, 421 is 1.

Therefore, GCD of numbers 851, 653, 12, 421 is 1

Given Input Data is 851, 653, 12, 421

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

Prime Factorization of 851 is 23 x 37

Prime Factorization of 653 is 653

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 421 is 421

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(851, 653) = 555703

GCD(851, 653) = ( 851 x 653 ) / 555703

GCD(851, 653) = 555703 / 555703

GCD(851, 653) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 12

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

LCM(1, 12) = 12

GCD(1, 12) = ( 1 x 12 ) / 12

GCD(1, 12) = 12 / 12

GCD(1, 12) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 421

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

LCM(1, 421) = 421

GCD(1, 421) = ( 1 x 421 ) / 421

GCD(1, 421) = 421 / 421

GCD(1, 421) = 1

GCD of 851, 653, 12, 421 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 327, 695, 63, 424
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• GCD of 805, 889, 98, 885

1. What is the GCD of 851, 653, 12, 421?

GCD of 851, 653, 12, 421 is 1

2. Where do I get the detailed procedure to find GCD of 851, 653, 12, 421?

You can find a detailed procedure to find GCD of 851, 653, 12, 421 on our page.

3. How to find GCD of 851, 653, 12, 421 on a calculator?

You can find the GCD of 851, 653, 12, 421 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.