GCD of 42, 668, 389, 667 Calculator

Given Input numbers are 42, 668, 389, 667

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

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Divisors of 668

List of positive integer divisors of 668 that divides 668 without a remainder.

1, 2, 4, 167, 334, 668

Divisors of 389

List of positive integer divisors of 389 that divides 389 without a remainder.

1, 389

Divisors of 667

List of positive integer divisors of 667 that divides 667 without a remainder.

1, 23, 29, 667

Greatest Common Divisior

We found the divisors of 42, 668, 389, 667 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 42, 668, 389, 667 is 1.

Therefore, GCD of numbers 42, 668, 389, 667 is 1

Given Input Data is 42, 668, 389, 667

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

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 668 is 2 x 2 x 167

Prime Factorization of 389 is 389

Prime Factorization of 667 is 23 x 29

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(42, 668) = 14028

GCD(42, 668) = ( 42 x 668 ) / 14028

GCD(42, 668) = 28056 / 14028

GCD(42, 668) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 389

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

LCM(2, 389) = 778

GCD(2, 389) = ( 2 x 389 ) / 778

GCD(2, 389) = 778 / 778

GCD(2, 389) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 667

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

LCM(1, 667) = 667

GCD(1, 667) = ( 1 x 667 ) / 667

GCD(1, 667) = 667 / 667

GCD(1, 667) = 1

GCD of 42, 668, 389, 667 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 20, 418, 540, 999
• GCD of 45, 422, 783, 577
• GCD of 51, 558, 393, 441
• GCD of 30, 427, 844, 260
• GCD of 63, 620, 118, 679

1. What is the GCD of 42, 668, 389, 667?

GCD of 42, 668, 389, 667 is 1

2. Where do I get the detailed procedure to find GCD of 42, 668, 389, 667?

You can find a detailed procedure to find GCD of 42, 668, 389, 667 on our page.

3. How to find GCD of 42, 668, 389, 667 on a calculator?

You can find the GCD of 42, 668, 389, 667 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.