GCD of 328, 665, 420, 212 Calculator

Given Input numbers are 328, 665, 420, 212

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

Divisors of 328

List of positive integer divisors of 328 that divides 328 without a remainder.

1, 2, 4, 8, 41, 82, 164, 328

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 420

List of positive integer divisors of 420 that divides 420 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 212

List of positive integer divisors of 212 that divides 212 without a remainder.

1, 2, 4, 53, 106, 212

Greatest Common Divisior

We found the divisors of 328, 665, 420, 212 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 328, 665, 420, 212 is 1.

Therefore, GCD of numbers 328, 665, 420, 212 is 1

Given Input Data is 328, 665, 420, 212

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

Prime Factorization of 328 is 2 x 2 x 2 x 41

Prime Factorization of 665 is 5 x 7 x 19

Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7

Prime Factorization of 212 is 2 x 2 x 53

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(328, 665) = 218120

GCD(328, 665) = ( 328 x 665 ) / 218120

GCD(328, 665) = 218120 / 218120

GCD(328, 665) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 420

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

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

GCD(1, 420) = 420 / 420

GCD(1, 420) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 212

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

LCM(1, 212) = 212

GCD(1, 212) = ( 1 x 212 ) / 212

GCD(1, 212) = 212 / 212

GCD(1, 212) = 1

GCD of 328, 665, 420, 212 is 1

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1. What is the GCD of 328, 665, 420, 212?

GCD of 328, 665, 420, 212 is 1

2. Where do I get the detailed procedure to find GCD of 328, 665, 420, 212?

You can find a detailed procedure to find GCD of 328, 665, 420, 212 on our page.

3. How to find GCD of 328, 665, 420, 212 on a calculator?

You can find the GCD of 328, 665, 420, 212 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.