Where do I get the detailed procedure to find GCD of 648, 668, 20?

You can find a detailed procedure to find GCD of 648, 668, 20 on our page.

How to find GCD of 648, 668, 20 on a calculator?

You can find the GCD of 648, 668, 20 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.

GCD of 648, 668, 20 Calculator

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023

Online GCD Calculator is useful to find the GCD of 648, 668, 20 quickly. Get the easiest ways to solve the greatest common divisor of 648, 668, 20 i.e 4 in different methods as follows.

How to Find GCD of Numbers 648, 668, 20 with Factoring?

Given Input numbers are 648, 668, 20

In the factoring method, we have to find the divisors of all numbers

Divisors of 648 :

The positive integer divisors of 648 that completely divides 648 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Divisors of 668 :

The positive integer divisors of 668 that completely divides 668 are.

1, 2, 4, 167, 334, 668

Divisors of 20 :

The positive integer divisors of 20 that completely divides 20 are.

1, 2, 4, 5, 10, 20

GCD of numbers is the greatest common divisor

So, the GCD (648, 668, 20) = 4.

Find GCD of 648, 668, 20 using Prime Factorization

Given numbers are 648, 668, 20

The list of prime factors of all numbers are

Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 668 are 2 x 2 x 167

Prime factors of 20 are 2 x 2 x 5

The highest common occurrence is 2²

Therefore, GCD of 648, 668, 20 is 4.

Steps to Calculate GCD of 648, 668, 20 using LCM Formula

Given numbers are 648, 668, 20

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(648, 668) = 108216

GCD(648, 668) = ( 648 x 668 ) / 108216

= 648 / 668

= 648

Step2:

LCM(4, 20) = 20

GCD(4, 20) = ( 4 x 20 ) / 20

= 4 / 20

= 4

So, Greatest Common Divisor of 648, 668, 20 is 4

GCD of Numbers Calculation Examples

Here are some samples of GCD of Numbers calculations.

Greatest Common Divisor of 648, 668, 20

Given numbers are 648, 668, 20
The greatest common divisor of numbers 648, 668, 20 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 648, 668, 20 is 4.

FAQs on GCD of 648, 668, 20 Calculator

1. What is the GCD of 648, 668, 20?

GCD of given numbers 648, 668, 20 is 4

2. How to calculate the greatest common divisor of 648, 668, 20?

We can find the highest common divisor of 648, 668, 20 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 648, 668, 20 i.e 4.

3. How can I use the GCD of 648, 668, 20Calculator?

Out the numbers 648, 668, 20 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.