GCD of 39, 70, 13 Calculator

Given Input numbers are 39, 70, 13

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

Divisors of 39

List of positive integer divisors of 39 that divides 39 without a remainder.

1, 3, 13, 39

Divisors of 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Greatest Common Divisior

We found the divisors of 39, 70, 13 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 39, 70, 13 is 1.

Therefore, GCD of numbers 39, 70, 13 is 1

Given Input Data is 39, 70, 13

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

Prime Factorization of 39 is 3 x 13

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 13 is 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(39, 70) = 2730

GCD(39, 70) = ( 39 x 70 ) / 2730

GCD(39, 70) = 2730 / 2730

GCD(39, 70) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 13

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

LCM(1, 13) = 13

GCD(1, 13) = ( 1 x 13 ) / 13

GCD(1, 13) = 13 / 13

GCD(1, 13) = 1

GCD of 39, 70, 13 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 62, 42, 36
• GCD of 30, 66, 88
• GCD of 90, 60, 80
• GCD of 40, 68, 96
• GCD of 27, 85, 54

1. What is the GCD of 39, 70, 13?

GCD of 39, 70, 13 is 1

2. Where do I get the detailed procedure to find GCD of 39, 70, 13?

You can find a detailed procedure to find GCD of 39, 70, 13 on our page.

3. How to find GCD of 39, 70, 13 on a calculator?

You can find the GCD of 39, 70, 13 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.