GCD of 69, 70, 79, 38 Calculator

Given Input numbers are 69, 70, 79, 38

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

Divisors of 69

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

1, 3, 23, 69

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 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 38

List of positive integer divisors of 38 that divides 38 without a remainder.

1, 2, 19, 38

Greatest Common Divisior

We found the divisors of 69, 70, 79, 38 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 69, 70, 79, 38 is 1.

Therefore, GCD of numbers 69, 70, 79, 38 is 1

Given Input Data is 69, 70, 79, 38

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

Prime Factorization of 69 is 3 x 23

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 79 is 79

Prime Factorization of 38 is 2 x 19

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(69, 70) = 4830

GCD(69, 70) = ( 69 x 70 ) / 4830

GCD(69, 70) = 4830 / 4830

GCD(69, 70) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 79

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

LCM(1, 79) = 79

GCD(1, 79) = ( 1 x 79 ) / 79

GCD(1, 79) = 79 / 79

GCD(1, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 38

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

LCM(1, 38) = 38

GCD(1, 38) = ( 1 x 38 ) / 38

GCD(1, 38) = 38 / 38

GCD(1, 38) = 1

GCD of 69, 70, 79, 38 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 86, 65, 87, 13
• GCD of 99, 77, 42, 26
• GCD of 46, 50, 87, 13
• GCD of 52, 18, 84, 65
• GCD of 40, 53, 87, 66

1. What is the GCD of 69, 70, 79, 38?

GCD of 69, 70, 79, 38 is 1

2. Where do I get the detailed procedure to find GCD of 69, 70, 79, 38?

You can find a detailed procedure to find GCD of 69, 70, 79, 38 on our page.

3. How to find GCD of 69, 70, 79, 38 on a calculator?

You can find the GCD of 69, 70, 79, 38 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.