GCD of 60, 79, 21, 17 Calculator

Given Input numbers are 60, 79, 21, 17

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

Divisors of 60

List of positive integer divisors of 60 that divides 60 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

Divisors of 79

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

1, 79

Divisors of 21

List of positive integer divisors of 21 that divides 21 without a remainder.

1, 3, 7, 21

Divisors of 17

List of positive integer divisors of 17 that divides 17 without a remainder.

1, 17

Greatest Common Divisior

We found the divisors of 60, 79, 21, 17 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 60, 79, 21, 17 is 1.

Therefore, GCD of numbers 60, 79, 21, 17 is 1

Given Input Data is 60, 79, 21, 17

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

Prime Factorization of 60 is 2 x 2 x 3 x 5

Prime Factorization of 79 is 79

Prime Factorization of 21 is 3 x 7

Prime Factorization of 17 is 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(60, 79) = 4740

GCD(60, 79) = ( 60 x 79 ) / 4740

GCD(60, 79) = 4740 / 4740

GCD(60, 79) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 21

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

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

GCD(1, 21) = 21 / 21

GCD(1, 21) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 17

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

LCM(1, 17) = 17

GCD(1, 17) = ( 1 x 17 ) / 17

GCD(1, 17) = 17 / 17

GCD(1, 17) = 1

GCD of 60, 79, 21, 17 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 25, 35, 41, 78
• GCD of 57, 25, 19, 30
• GCD of 60, 17, 79, 12
• GCD of 85, 35, 55, 21
• GCD of 76, 62, 53, 98

1. What is the GCD of 60, 79, 21, 17?

GCD of 60, 79, 21, 17 is 1

2. Where do I get the detailed procedure to find GCD of 60, 79, 21, 17?

You can find a detailed procedure to find GCD of 60, 79, 21, 17 on our page.

3. How to find GCD of 60, 79, 21, 17 on a calculator?

You can find the GCD of 60, 79, 21, 17 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.