GCD of 421, 254, 80, 393 Calculator

Given Input numbers are 421, 254, 80, 393

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

Divisors of 421

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

1, 421

Divisors of 254

List of positive integer divisors of 254 that divides 254 without a remainder.

1, 2, 127, 254

Divisors of 80

List of positive integer divisors of 80 that divides 80 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Divisors of 393

List of positive integer divisors of 393 that divides 393 without a remainder.

1, 3, 131, 393

Greatest Common Divisior

We found the divisors of 421, 254, 80, 393 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 421, 254, 80, 393 is 1.

Therefore, GCD of numbers 421, 254, 80, 393 is 1

Given Input Data is 421, 254, 80, 393

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

Prime Factorization of 421 is 421

Prime Factorization of 254 is 2 x 127

Prime Factorization of 80 is 2 x 2 x 2 x 2 x 5

Prime Factorization of 393 is 3 x 131

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(421, 254) = 106934

GCD(421, 254) = ( 421 x 254 ) / 106934

GCD(421, 254) = 106934 / 106934

GCD(421, 254) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 80

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

LCM(1, 80) = 80

GCD(1, 80) = ( 1 x 80 ) / 80

GCD(1, 80) = 80 / 80

GCD(1, 80) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 393

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

LCM(1, 393) = 393

GCD(1, 393) = ( 1 x 393 ) / 393

GCD(1, 393) = 393 / 393

GCD(1, 393) = 1

GCD of 421, 254, 80, 393 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 438, 966, 34, 799
• GCD of 357, 740, 80, 699
• GCD of 877, 415, 87, 480
• GCD of 942, 971, 33, 989
• GCD of 783, 751, 42, 917

1. What is the GCD of 421, 254, 80, 393?

GCD of 421, 254, 80, 393 is 1

2. Where do I get the detailed procedure to find GCD of 421, 254, 80, 393?

You can find a detailed procedure to find GCD of 421, 254, 80, 393 on our page.

3. How to find GCD of 421, 254, 80, 393 on a calculator?

You can find the GCD of 421, 254, 80, 393 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.