GCD of 279, 236, 639, 402 Calculator

Given Input numbers are 279, 236, 639, 402

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

Divisors of 279

List of positive integer divisors of 279 that divides 279 without a remainder.

1, 3, 9, 31, 93, 279

Divisors of 236

List of positive integer divisors of 236 that divides 236 without a remainder.

1, 2, 4, 59, 118, 236

Divisors of 639

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

1, 3, 9, 71, 213, 639

Divisors of 402

List of positive integer divisors of 402 that divides 402 without a remainder.

1, 2, 3, 6, 67, 134, 201, 402

Greatest Common Divisior

We found the divisors of 279, 236, 639, 402 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 279, 236, 639, 402 is 1.

Therefore, GCD of numbers 279, 236, 639, 402 is 1

Given Input Data is 279, 236, 639, 402

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

Prime Factorization of 279 is 3 x 3 x 31

Prime Factorization of 236 is 2 x 2 x 59

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 402 is 2 x 3 x 67

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(279, 236) = 65844

GCD(279, 236) = ( 279 x 236 ) / 65844

GCD(279, 236) = 65844 / 65844

GCD(279, 236) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 402

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

LCM(1, 402) = 402

GCD(1, 402) = ( 1 x 402 ) / 402

GCD(1, 402) = 402 / 402

GCD(1, 402) = 1

GCD of 279, 236, 639, 402 is 1

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1. What is the GCD of 279, 236, 639, 402?

GCD of 279, 236, 639, 402 is 1

2. Where do I get the detailed procedure to find GCD of 279, 236, 639, 402?

You can find a detailed procedure to find GCD of 279, 236, 639, 402 on our page.

3. How to find GCD of 279, 236, 639, 402 on a calculator?

You can find the GCD of 279, 236, 639, 402 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.