GCD of 418, 315, 42, 278 Calculator

Given Input numbers are 418, 315, 42, 278

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

Divisors of 418

List of positive integer divisors of 418 that divides 418 without a remainder.

1, 2, 11, 19, 22, 38, 209, 418

Divisors of 315

List of positive integer divisors of 315 that divides 315 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315

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 278

List of positive integer divisors of 278 that divides 278 without a remainder.

1, 2, 139, 278

Greatest Common Divisior

We found the divisors of 418, 315, 42, 278 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 418, 315, 42, 278 is 1.

Therefore, GCD of numbers 418, 315, 42, 278 is 1

Given Input Data is 418, 315, 42, 278

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

Prime Factorization of 418 is 2 x 11 x 19

Prime Factorization of 315 is 3 x 3 x 5 x 7

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 278 is 2 x 139

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(418, 315) = 131670

GCD(418, 315) = ( 418 x 315 ) / 131670

GCD(418, 315) = 131670 / 131670

GCD(418, 315) = 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 278

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

LCM(1, 278) = 278

GCD(1, 278) = ( 1 x 278 ) / 278

GCD(1, 278) = 278 / 278

GCD(1, 278) = 1

GCD of 418, 315, 42, 278 is 1

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1. What is the GCD of 418, 315, 42, 278?

GCD of 418, 315, 42, 278 is 1

2. Where do I get the detailed procedure to find GCD of 418, 315, 42, 278?

You can find a detailed procedure to find GCD of 418, 315, 42, 278 on our page.

3. How to find GCD of 418, 315, 42, 278 on a calculator?

You can find the GCD of 418, 315, 42, 278 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.