GCD of 221, 168, 943, 155 Calculator

Given Input numbers are 221, 168, 943, 155

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

Divisors of 221

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

1, 13, 17, 221

Divisors of 168

List of positive integer divisors of 168 that divides 168 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

Divisors of 943

List of positive integer divisors of 943 that divides 943 without a remainder.

1, 23, 41, 943

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Greatest Common Divisior

We found the divisors of 221, 168, 943, 155 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 168, 943, 155 is 1.

Therefore, GCD of numbers 221, 168, 943, 155 is 1

Given Input Data is 221, 168, 943, 155

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 168 is 2 x 2 x 2 x 3 x 7

Prime Factorization of 943 is 23 x 41

Prime Factorization of 155 is 5 x 31

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(221, 168) = 37128

GCD(221, 168) = ( 221 x 168 ) / 37128

GCD(221, 168) = 37128 / 37128

GCD(221, 168) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 943

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

LCM(1, 943) = 943

GCD(1, 943) = ( 1 x 943 ) / 943

GCD(1, 943) = 943 / 943

GCD(1, 943) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 155

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

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

GCD(1, 155) = 155 / 155

GCD(1, 155) = 1

GCD of 221, 168, 943, 155 is 1

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1. What is the GCD of 221, 168, 943, 155?

GCD of 221, 168, 943, 155 is 1

2. Where do I get the detailed procedure to find GCD of 221, 168, 943, 155?

You can find a detailed procedure to find GCD of 221, 168, 943, 155 on our page.

3. How to find GCD of 221, 168, 943, 155 on a calculator?

You can find the GCD of 221, 168, 943, 155 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.