GCD of 161, 558, 353, 220 Calculator

Given Input numbers are 161, 558, 353, 220

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 558

List of positive integer divisors of 558 that divides 558 without a remainder.

1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

Divisors of 353

List of positive integer divisors of 353 that divides 353 without a remainder.

1, 353

Divisors of 220

List of positive integer divisors of 220 that divides 220 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Greatest Common Divisior

We found the divisors of 161, 558, 353, 220 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 161, 558, 353, 220 is 1.

Therefore, GCD of numbers 161, 558, 353, 220 is 1

Given Input Data is 161, 558, 353, 220

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

Prime Factorization of 161 is 7 x 23

Prime Factorization of 558 is 2 x 3 x 3 x 31

Prime Factorization of 353 is 353

Prime Factorization of 220 is 2 x 2 x 5 x 11

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, 558) = 89838

GCD(161, 558) = ( 161 x 558 ) / 89838

GCD(161, 558) = 89838 / 89838

GCD(161, 558) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 353

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

LCM(1, 353) = 353

GCD(1, 353) = ( 1 x 353 ) / 353

GCD(1, 353) = 353 / 353

GCD(1, 353) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 220

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

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

GCD(1, 220) = 220 / 220

GCD(1, 220) = 1

GCD of 161, 558, 353, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 978, 853, 957, 192
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• GCD of 286, 273, 594, 392
• GCD of 809, 380, 147, 893

1. What is the GCD of 161, 558, 353, 220?

GCD of 161, 558, 353, 220 is 1

2. Where do I get the detailed procedure to find GCD of 161, 558, 353, 220?

You can find a detailed procedure to find GCD of 161, 558, 353, 220 on our page.

3. How to find GCD of 161, 558, 353, 220 on a calculator?

You can find the GCD of 161, 558, 353, 220 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.