GCD of 161, 810, 87, 355 Calculator

Given Input numbers are 161, 810, 87, 355

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

Divisors of 161

List of positive integer divisors of 161 that divides 161 without a remainder.

1, 7, 23, 161

Divisors of 810

List of positive integer divisors of 810 that divides 810 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

Divisors of 87

List of positive integer divisors of 87 that divides 87 without a remainder.

1, 3, 29, 87

Divisors of 355

List of positive integer divisors of 355 that divides 355 without a remainder.

1, 5, 71, 355

Greatest Common Divisior

We found the divisors of 161, 810, 87, 355 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 161, 810, 87, 355 is 1.

Therefore, GCD of numbers 161, 810, 87, 355 is 1

Given Input Data is 161, 810, 87, 355

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

Prime Factorization of 161 is 7 x 23

Prime Factorization of 810 is 2 x 3 x 3 x 3 x 3 x 5

Prime Factorization of 87 is 3 x 29

Prime Factorization of 355 is 5 x 71

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(161, 810) = 130410

GCD(161, 810) = ( 161 x 810 ) / 130410

GCD(161, 810) = 130410 / 130410

GCD(161, 810) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 87

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

LCM(1, 87) = 87

GCD(1, 87) = ( 1 x 87 ) / 87

GCD(1, 87) = 87 / 87

GCD(1, 87) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 355

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

LCM(1, 355) = 355

GCD(1, 355) = ( 1 x 355 ) / 355

GCD(1, 355) = 355 / 355

GCD(1, 355) = 1

GCD of 161, 810, 87, 355 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 705, 835, 37, 997
• GCD of 957, 680, 80, 397
• GCD of 342, 160, 83, 291
• GCD of 381, 674, 68, 346
• GCD of 550, 893, 76, 677

1. What is the GCD of 161, 810, 87, 355?

GCD of 161, 810, 87, 355 is 1

2. Where do I get the detailed procedure to find GCD of 161, 810, 87, 355?

You can find a detailed procedure to find GCD of 161, 810, 87, 355 on our page.

3. How to find GCD of 161, 810, 87, 355 on a calculator?

You can find the GCD of 161, 810, 87, 355 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.