GCD of 23, 15, 65 Calculator

Given Input numbers are 23, 15, 65

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 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 65

List of positive integer divisors of 65 that divides 65 without a remainder.

1, 5, 13, 65

Greatest Common Divisior

We found the divisors of 23, 15, 65 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 23, 15, 65 is 1.

Therefore, GCD of numbers 23, 15, 65 is 1

Given Input Data is 23, 15, 65

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

Prime Factorization of 23 is 23

Prime Factorization of 15 is 3 x 5

Prime Factorization of 65 is 5 x 13

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, 15) = 345

GCD(23, 15) = ( 23 x 15 ) / 345

GCD(23, 15) = 345 / 345

GCD(23, 15) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 65

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

LCM(1, 65) = 65

GCD(1, 65) = ( 1 x 65 ) / 65

GCD(1, 65) = 65 / 65

GCD(1, 65) = 1

GCD of 23, 15, 65 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 10, 29, 41
• GCD of 57, 90, 82
• GCD of 54, 14, 13
• GCD of 60, 28, 71
• GCD of 70, 68, 21

1. What is the GCD of 23, 15, 65?

GCD of 23, 15, 65 is 1

2. Where do I get the detailed procedure to find GCD of 23, 15, 65?

You can find a detailed procedure to find GCD of 23, 15, 65 on our page.

3. How to find GCD of 23, 15, 65 on a calculator?

You can find the GCD of 23, 15, 65 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.