GCD of 639, 400, 246 Calculator

Given Input numbers are 639, 400, 246

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

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 400

List of positive integer divisors of 400 that divides 400 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

Divisors of 246

List of positive integer divisors of 246 that divides 246 without a remainder.

1, 2, 3, 6, 41, 82, 123, 246

Greatest Common Divisior

We found the divisors of 639, 400, 246 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 400, 246 is 1.

Therefore, GCD of numbers 639, 400, 246 is 1

Given Input Data is 639, 400, 246

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 400 is 2 x 2 x 2 x 2 x 5 x 5

Prime Factorization of 246 is 2 x 3 x 41

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(639, 400) = 255600

GCD(639, 400) = ( 639 x 400 ) / 255600

GCD(639, 400) = 255600 / 255600

GCD(639, 400) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 246

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

LCM(1, 246) = 246

GCD(1, 246) = ( 1 x 246 ) / 246

GCD(1, 246) = 246 / 246

GCD(1, 246) = 1

GCD of 639, 400, 246 is 1

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1. What is the GCD of 639, 400, 246?

GCD of 639, 400, 246 is 1

2. Where do I get the detailed procedure to find GCD of 639, 400, 246?

You can find a detailed procedure to find GCD of 639, 400, 246 on our page.

3. How to find GCD of 639, 400, 246 on a calculator?

You can find the GCD of 639, 400, 246 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.