GCD of 128, 721, 125, 165 Calculator

Given Input numbers are 128, 721, 125, 165

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

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 125

List of positive integer divisors of 125 that divides 125 without a remainder.

1, 5, 25, 125

Divisors of 165

List of positive integer divisors of 165 that divides 165 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165

Greatest Common Divisior

We found the divisors of 128, 721, 125, 165 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 128, 721, 125, 165 is 1.

Therefore, GCD of numbers 128, 721, 125, 165 is 1

Given Input Data is 128, 721, 125, 165

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

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 721 is 7 x 103

Prime Factorization of 125 is 5 x 5 x 5

Prime Factorization of 165 is 3 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(128, 721) = 92288

GCD(128, 721) = ( 128 x 721 ) / 92288

GCD(128, 721) = 92288 / 92288

GCD(128, 721) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 125

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

LCM(1, 125) = 125

GCD(1, 125) = ( 1 x 125 ) / 125

GCD(1, 125) = 125 / 125

GCD(1, 125) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 165

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

LCM(1, 165) = 165

GCD(1, 165) = ( 1 x 165 ) / 165

GCD(1, 165) = 165 / 165

GCD(1, 165) = 1

GCD of 128, 721, 125, 165 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 324, 341, 347, 439
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1. What is the GCD of 128, 721, 125, 165?

GCD of 128, 721, 125, 165 is 1

2. Where do I get the detailed procedure to find GCD of 128, 721, 125, 165?

You can find a detailed procedure to find GCD of 128, 721, 125, 165 on our page.

3. How to find GCD of 128, 721, 125, 165 on a calculator?

You can find the GCD of 128, 721, 125, 165 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.