GCD of 643, 999, 42, 718 Calculator

Given Input numbers are 643, 999, 42, 718

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

Divisors of 643

List of positive integer divisors of 643 that divides 643 without a remainder.

1, 643

Divisors of 999

List of positive integer divisors of 999 that divides 999 without a remainder.

1, 3, 9, 27, 37, 111, 333, 999

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 718

List of positive integer divisors of 718 that divides 718 without a remainder.

1, 2, 359, 718

Greatest Common Divisior

We found the divisors of 643, 999, 42, 718 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 643, 999, 42, 718 is 1.

Therefore, GCD of numbers 643, 999, 42, 718 is 1

Given Input Data is 643, 999, 42, 718

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

Prime Factorization of 643 is 643

Prime Factorization of 999 is 3 x 3 x 3 x 37

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 718 is 2 x 359

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(643, 999) = 642357

GCD(643, 999) = ( 643 x 999 ) / 642357

GCD(643, 999) = 642357 / 642357

GCD(643, 999) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 42

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

LCM(1, 42) = 42

GCD(1, 42) = ( 1 x 42 ) / 42

GCD(1, 42) = 42 / 42

GCD(1, 42) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 718

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

LCM(1, 718) = 718

GCD(1, 718) = ( 1 x 718 ) / 718

GCD(1, 718) = 718 / 718

GCD(1, 718) = 1

GCD of 643, 999, 42, 718 is 1

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• GCD of 286, 749, 80, 881
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1. What is the GCD of 643, 999, 42, 718?

GCD of 643, 999, 42, 718 is 1

2. Where do I get the detailed procedure to find GCD of 643, 999, 42, 718?

You can find a detailed procedure to find GCD of 643, 999, 42, 718 on our page.

3. How to find GCD of 643, 999, 42, 718 on a calculator?

You can find the GCD of 643, 999, 42, 718 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.