GCD of 478, 815, 139, 407 Calculator

Given Input numbers are 478, 815, 139, 407

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

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 139

List of positive integer divisors of 139 that divides 139 without a remainder.

1, 139

Divisors of 407

List of positive integer divisors of 407 that divides 407 without a remainder.

1, 11, 37, 407

Greatest Common Divisior

We found the divisors of 478, 815, 139, 407 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 478, 815, 139, 407 is 1.

Therefore, GCD of numbers 478, 815, 139, 407 is 1

Given Input Data is 478, 815, 139, 407

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

Prime Factorization of 478 is 2 x 239

Prime Factorization of 815 is 5 x 163

Prime Factorization of 139 is 139

Prime Factorization of 407 is 11 x 37

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(478, 815) = 389570

GCD(478, 815) = ( 478 x 815 ) / 389570

GCD(478, 815) = 389570 / 389570

GCD(478, 815) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 139

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

LCM(1, 139) = 139

GCD(1, 139) = ( 1 x 139 ) / 139

GCD(1, 139) = 139 / 139

GCD(1, 139) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 407

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

LCM(1, 407) = 407

GCD(1, 407) = ( 1 x 407 ) / 407

GCD(1, 407) = 407 / 407

GCD(1, 407) = 1

GCD of 478, 815, 139, 407 is 1

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• GCD of 658, 534, 375, 465
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• GCD of 918, 461, 200, 575

1. What is the GCD of 478, 815, 139, 407?

GCD of 478, 815, 139, 407 is 1

2. Where do I get the detailed procedure to find GCD of 478, 815, 139, 407?

You can find a detailed procedure to find GCD of 478, 815, 139, 407 on our page.

3. How to find GCD of 478, 815, 139, 407 on a calculator?

You can find the GCD of 478, 815, 139, 407 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.