GCD of 23, 920, 221, 161 Calculator

Given Input numbers are 23, 920, 221, 161

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

Divisors of 23

List of positive integer divisors of 23 that divides 23 without a remainder.

1, 23

Divisors of 920

List of positive integer divisors of 920 that divides 920 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 161

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

1, 7, 23, 161

Greatest Common Divisior

We found the divisors of 23, 920, 221, 161 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 23, 920, 221, 161 is 1.

Therefore, GCD of numbers 23, 920, 221, 161 is 1

Given Input Data is 23, 920, 221, 161

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

Prime Factorization of 23 is 23

Prime Factorization of 920 is 2 x 2 x 2 x 5 x 23

Prime Factorization of 221 is 13 x 17

Prime Factorization of 161 is 7 x 23

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(23, 920) = 920

GCD(23, 920) = ( 23 x 920 ) / 920

GCD(23, 920) = 21160 / 920

GCD(23, 920) = 23

Step2:

Here we consider the GCD from the above i.e. 23 as first number and the next as 221

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

LCM(23, 221) = 5083

GCD(23, 221) = ( 23 x 221 ) / 5083

GCD(23, 221) = 5083 / 5083

GCD(23, 221) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 161

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

LCM(1, 161) = 161

GCD(1, 161) = ( 1 x 161 ) / 161

GCD(1, 161) = 161 / 161

GCD(1, 161) = 1

GCD of 23, 920, 221, 161 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 31, 640, 818, 468
• GCD of 19, 118, 734, 246
• GCD of 32, 342, 992, 794
• GCD of 19, 379, 830, 203
• GCD of 31, 928, 532, 966

1. What is the GCD of 23, 920, 221, 161?

GCD of 23, 920, 221, 161 is 1

2. Where do I get the detailed procedure to find GCD of 23, 920, 221, 161?

You can find a detailed procedure to find GCD of 23, 920, 221, 161 on our page.

3. How to find GCD of 23, 920, 221, 161 on a calculator?

You can find the GCD of 23, 920, 221, 161 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.