GCD of 769, 372, 80, 405 Calculator

Given Input numbers are 769, 372, 80, 405

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

Divisors of 769

List of positive integer divisors of 769 that divides 769 without a remainder.

1, 769

Divisors of 372

List of positive integer divisors of 372 that divides 372 without a remainder.

1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372

Divisors of 80

List of positive integer divisors of 80 that divides 80 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Divisors of 405

List of positive integer divisors of 405 that divides 405 without a remainder.

1, 3, 5, 9, 15, 27, 45, 81, 135, 405

Greatest Common Divisior

We found the divisors of 769, 372, 80, 405 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 769, 372, 80, 405 is 1.

Therefore, GCD of numbers 769, 372, 80, 405 is 1

Given Input Data is 769, 372, 80, 405

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

Prime Factorization of 769 is 769

Prime Factorization of 372 is 2 x 2 x 3 x 31

Prime Factorization of 80 is 2 x 2 x 2 x 2 x 5

Prime Factorization of 405 is 3 x 3 x 3 x 3 x 5

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(769, 372) = 286068

GCD(769, 372) = ( 769 x 372 ) / 286068

GCD(769, 372) = 286068 / 286068

GCD(769, 372) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 80

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

LCM(1, 80) = 80

GCD(1, 80) = ( 1 x 80 ) / 80

GCD(1, 80) = 80 / 80

GCD(1, 80) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 405

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

LCM(1, 405) = 405

GCD(1, 405) = ( 1 x 405 ) / 405

GCD(1, 405) = 405 / 405

GCD(1, 405) = 1

GCD of 769, 372, 80, 405 is 1

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1. What is the GCD of 769, 372, 80, 405?

GCD of 769, 372, 80, 405 is 1

2. Where do I get the detailed procedure to find GCD of 769, 372, 80, 405?

You can find a detailed procedure to find GCD of 769, 372, 80, 405 on our page.

3. How to find GCD of 769, 372, 80, 405 on a calculator?

You can find the GCD of 769, 372, 80, 405 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.