GCD of 642, 963, 46, 855 Calculator

Given Input numbers are 642, 963, 46, 855

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

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 963

List of positive integer divisors of 963 that divides 963 without a remainder.

1, 3, 9, 107, 321, 963

Divisors of 46

List of positive integer divisors of 46 that divides 46 without a remainder.

1, 2, 23, 46

Divisors of 855

List of positive integer divisors of 855 that divides 855 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Greatest Common Divisior

We found the divisors of 642, 963, 46, 855 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 963, 46, 855 is 1.

Therefore, GCD of numbers 642, 963, 46, 855 is 1

Given Input Data is 642, 963, 46, 855

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 963 is 3 x 3 x 107

Prime Factorization of 46 is 2 x 23

Prime Factorization of 855 is 3 x 3 x 5 x 19

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(642, 963) = 1926

GCD(642, 963) = ( 642 x 963 ) / 1926

GCD(642, 963) = 618246 / 1926

GCD(642, 963) = 321

Step2:

Here we consider the GCD from the above i.e. 321 as first number and the next as 46

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

LCM(321, 46) = 14766

GCD(321, 46) = ( 321 x 46 ) / 14766

GCD(321, 46) = 14766 / 14766

GCD(321, 46) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 855

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

LCM(1, 855) = 855

GCD(1, 855) = ( 1 x 855 ) / 855

GCD(1, 855) = 855 / 855

GCD(1, 855) = 1

GCD of 642, 963, 46, 855 is 1

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1. What is the GCD of 642, 963, 46, 855?

GCD of 642, 963, 46, 855 is 1

2. Where do I get the detailed procedure to find GCD of 642, 963, 46, 855?

You can find a detailed procedure to find GCD of 642, 963, 46, 855 on our page.

3. How to find GCD of 642, 963, 46, 855 on a calculator?

You can find the GCD of 642, 963, 46, 855 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.