GCD of 438, 807, 377, 665 Calculator

Given Input numbers are 438, 807, 377, 665

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

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 807

List of positive integer divisors of 807 that divides 807 without a remainder.

1, 3, 269, 807

Divisors of 377

List of positive integer divisors of 377 that divides 377 without a remainder.

1, 13, 29, 377

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Greatest Common Divisior

We found the divisors of 438, 807, 377, 665 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 438, 807, 377, 665 is 1.

Therefore, GCD of numbers 438, 807, 377, 665 is 1

Given Input Data is 438, 807, 377, 665

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

Prime Factorization of 438 is 2 x 3 x 73

Prime Factorization of 807 is 3 x 269

Prime Factorization of 377 is 13 x 29

Prime Factorization of 665 is 5 x 7 x 19

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(438, 807) = 117822

GCD(438, 807) = ( 438 x 807 ) / 117822

GCD(438, 807) = 353466 / 117822

GCD(438, 807) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 377

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

LCM(3, 377) = 1131

GCD(3, 377) = ( 3 x 377 ) / 1131

GCD(3, 377) = 1131 / 1131

GCD(3, 377) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 665

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

LCM(1, 665) = 665

GCD(1, 665) = ( 1 x 665 ) / 665

GCD(1, 665) = 665 / 665

GCD(1, 665) = 1

GCD of 438, 807, 377, 665 is 1

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1. What is the GCD of 438, 807, 377, 665?

GCD of 438, 807, 377, 665 is 1

2. Where do I get the detailed procedure to find GCD of 438, 807, 377, 665?

You can find a detailed procedure to find GCD of 438, 807, 377, 665 on our page.

3. How to find GCD of 438, 807, 377, 665 on a calculator?

You can find the GCD of 438, 807, 377, 665 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.