GCD of 408, 388, 42, 751 Calculator

Given Input numbers are 408, 388, 42, 751

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

Divisors of 408

List of positive integer divisors of 408 that divides 408 without a remainder.

1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

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 751

List of positive integer divisors of 751 that divides 751 without a remainder.

1, 751

Greatest Common Divisior

We found the divisors of 408, 388, 42, 751 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 408, 388, 42, 751 is 1.

Therefore, GCD of numbers 408, 388, 42, 751 is 1

Given Input Data is 408, 388, 42, 751

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

Prime Factorization of 408 is 2 x 2 x 2 x 3 x 17

Prime Factorization of 388 is 2 x 2 x 97

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 751 is 751

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(408, 388) = 39576

GCD(408, 388) = ( 408 x 388 ) / 39576

GCD(408, 388) = 158304 / 39576

GCD(408, 388) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 42

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

LCM(4, 42) = 84

GCD(4, 42) = ( 4 x 42 ) / 84

GCD(4, 42) = 168 / 84

GCD(4, 42) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 751

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

LCM(2, 751) = 1502

GCD(2, 751) = ( 2 x 751 ) / 1502

GCD(2, 751) = 1502 / 1502

GCD(2, 751) = 1

GCD of 408, 388, 42, 751 is 1

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1. What is the GCD of 408, 388, 42, 751?

GCD of 408, 388, 42, 751 is 1

2. Where do I get the detailed procedure to find GCD of 408, 388, 42, 751?

You can find a detailed procedure to find GCD of 408, 388, 42, 751 on our page.

3. How to find GCD of 408, 388, 42, 751 on a calculator?

You can find the GCD of 408, 388, 42, 751 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.