GCD of 805, 164, 81, 251 Calculator

Given Input numbers are 805, 164, 81, 251

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

Divisors of 805

List of positive integer divisors of 805 that divides 805 without a remainder.

1, 5, 7, 23, 35, 115, 161, 805

Divisors of 164

List of positive integer divisors of 164 that divides 164 without a remainder.

1, 2, 4, 41, 82, 164

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 251

List of positive integer divisors of 251 that divides 251 without a remainder.

1, 251

Greatest Common Divisior

We found the divisors of 805, 164, 81, 251 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 805, 164, 81, 251 is 1.

Therefore, GCD of numbers 805, 164, 81, 251 is 1

Given Input Data is 805, 164, 81, 251

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

Prime Factorization of 805 is 5 x 7 x 23

Prime Factorization of 164 is 2 x 2 x 41

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 251 is 251

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(805, 164) = 132020

GCD(805, 164) = ( 805 x 164 ) / 132020

GCD(805, 164) = 132020 / 132020

GCD(805, 164) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 251

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

LCM(1, 251) = 251

GCD(1, 251) = ( 1 x 251 ) / 251

GCD(1, 251) = 251 / 251

GCD(1, 251) = 1

GCD of 805, 164, 81, 251 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 717, 908, 90, 531
• GCD of 285, 338, 44, 403
• GCD of 416, 179, 37, 917
• GCD of 540, 579, 46, 910
• GCD of 515, 568, 49, 198

1. What is the GCD of 805, 164, 81, 251?

GCD of 805, 164, 81, 251 is 1

2. Where do I get the detailed procedure to find GCD of 805, 164, 81, 251?

You can find a detailed procedure to find GCD of 805, 164, 81, 251 on our page.

3. How to find GCD of 805, 164, 81, 251 on a calculator?

You can find the GCD of 805, 164, 81, 251 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.