GCD of 689, 181, 12, 765 Calculator

Given Input numbers are 689, 181, 12, 765

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

Divisors of 689

List of positive integer divisors of 689 that divides 689 without a remainder.

1, 13, 53, 689

Divisors of 181

List of positive integer divisors of 181 that divides 181 without a remainder.

1, 181

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 765

List of positive integer divisors of 765 that divides 765 without a remainder.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Greatest Common Divisior

We found the divisors of 689, 181, 12, 765 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 689, 181, 12, 765 is 1.

Therefore, GCD of numbers 689, 181, 12, 765 is 1

Given Input Data is 689, 181, 12, 765

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

Prime Factorization of 689 is 13 x 53

Prime Factorization of 181 is 181

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 765 is 3 x 3 x 5 x 17

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(689, 181) = 124709

GCD(689, 181) = ( 689 x 181 ) / 124709

GCD(689, 181) = 124709 / 124709

GCD(689, 181) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 12

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

LCM(1, 12) = 12

GCD(1, 12) = ( 1 x 12 ) / 12

GCD(1, 12) = 12 / 12

GCD(1, 12) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 765

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

LCM(1, 765) = 765

GCD(1, 765) = ( 1 x 765 ) / 765

GCD(1, 765) = 765 / 765

GCD(1, 765) = 1

GCD of 689, 181, 12, 765 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 923, 534, 60, 359
• GCD of 535, 142, 41, 817
• GCD of 913, 717, 44, 880
• GCD of 303, 583, 47, 559
• GCD of 470, 195, 11, 207

1. What is the GCD of 689, 181, 12, 765?

GCD of 689, 181, 12, 765 is 1

2. Where do I get the detailed procedure to find GCD of 689, 181, 12, 765?

You can find a detailed procedure to find GCD of 689, 181, 12, 765 on our page.

3. How to find GCD of 689, 181, 12, 765 on a calculator?

You can find the GCD of 689, 181, 12, 765 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.