GCD of 181, 857, 21, 681 Calculator

Given Input numbers are 181, 857, 21, 681

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

Divisors of 181

List of positive integer divisors of 181 that divides 181 without a remainder.

1, 181

Divisors of 857

List of positive integer divisors of 857 that divides 857 without a remainder.

1, 857

Divisors of 21

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

1, 3, 7, 21

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Greatest Common Divisior

We found the divisors of 181, 857, 21, 681 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 181, 857, 21, 681 is 1.

Therefore, GCD of numbers 181, 857, 21, 681 is 1

Given Input Data is 181, 857, 21, 681

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

Prime Factorization of 181 is 181

Prime Factorization of 857 is 857

Prime Factorization of 21 is 3 x 7

Prime Factorization of 681 is 3 x 227

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(181, 857) = 155117

GCD(181, 857) = ( 181 x 857 ) / 155117

GCD(181, 857) = 155117 / 155117

GCD(181, 857) = 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 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

GCD of 181, 857, 21, 681 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 153, 533, 65, 320
• GCD of 203, 944, 22, 153
• GCD of 349, 579, 96, 846
• GCD of 173, 567, 21, 578
• GCD of 177, 444, 60, 401

1. What is the GCD of 181, 857, 21, 681?

GCD of 181, 857, 21, 681 is 1

2. Where do I get the detailed procedure to find GCD of 181, 857, 21, 681?

You can find a detailed procedure to find GCD of 181, 857, 21, 681 on our page.

3. How to find GCD of 181, 857, 21, 681 on a calculator?

You can find the GCD of 181, 857, 21, 681 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.