GCD of 128, 861, 69 Calculator

Given Input numbers are 128, 861, 69

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 861

List of positive integer divisors of 861 that divides 861 without a remainder.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 69

List of positive integer divisors of 69 that divides 69 without a remainder.

1, 3, 23, 69

Greatest Common Divisior

We found the divisors of 128, 861, 69 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 128, 861, 69 is 1.

Therefore, GCD of numbers 128, 861, 69 is 1

Given Input Data is 128, 861, 69

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 861 is 3 x 7 x 41

Prime Factorization of 69 is 3 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(128, 861) = 110208

GCD(128, 861) = ( 128 x 861 ) / 110208

GCD(128, 861) = 110208 / 110208

GCD(128, 861) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 69

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

LCM(1, 69) = 69

GCD(1, 69) = ( 1 x 69 ) / 69

GCD(1, 69) = 69 / 69

GCD(1, 69) = 1

GCD of 128, 861, 69 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 739, 487, 51
• GCD of 184, 548, 62
• GCD of 831, 535, 73
• GCD of 979, 554, 32
• GCD of 704, 167, 79

1. What is the GCD of 128, 861, 69?

GCD of 128, 861, 69 is 1

2. Where do I get the detailed procedure to find GCD of 128, 861, 69?

You can find a detailed procedure to find GCD of 128, 861, 69 on our page.

3. How to find GCD of 128, 861, 69 on a calculator?

You can find the GCD of 128, 861, 69 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.