GCD of 246, 123, 12, 390 Calculator

Given Input numbers are 246, 123, 12, 390

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

Divisors of 246

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

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

Divisors of 123

List of positive integer divisors of 123 that divides 123 without a remainder.

1, 3, 41, 123

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Greatest Common Divisior

We found the divisors of 246, 123, 12, 390 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 246, 123, 12, 390 is 3.

Therefore, GCD of numbers 246, 123, 12, 390 is 3

Given Input Data is 246, 123, 12, 390

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

Prime Factorization of 246 is 2 x 3 x 41

Prime Factorization of 123 is 3 x 41

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 390 is 2 x 3 x 5 x 13

Highest common occurrences in the given inputs are 3¹

Multiplying them we get the GCD as 3

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(246, 123) = 246

GCD(246, 123) = ( 246 x 123 ) / 246

GCD(246, 123) = 30258 / 246

GCD(246, 123) = 123

Step2:

Here we consider the GCD from the above i.e. 123 as first number and the next as 12

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

LCM(123, 12) = 492

GCD(123, 12) = ( 123 x 12 ) / 492

GCD(123, 12) = 1476 / 492

GCD(123, 12) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 390

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

LCM(3, 390) = 390

GCD(3, 390) = ( 3 x 390 ) / 390

GCD(3, 390) = 1170 / 390

GCD(3, 390) = 3

GCD of 246, 123, 12, 390 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 540, 163, 41, 971
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• GCD of 201, 474, 50, 857
• GCD of 547, 509, 18, 167
• GCD of 338, 705, 83, 891

1. What is the GCD of 246, 123, 12, 390?

GCD of 246, 123, 12, 390 is 3

2. Where do I get the detailed procedure to find GCD of 246, 123, 12, 390?

You can find a detailed procedure to find GCD of 246, 123, 12, 390 on our page.

3. How to find GCD of 246, 123, 12, 390 on a calculator?

You can find the GCD of 246, 123, 12, 390 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.