GCD of 815, 380, 42, 776 Calculator

Given Input numbers are 815, 380, 42, 776

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

Divisors of 815

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

1, 5, 163, 815

Divisors of 380

List of positive integer divisors of 380 that divides 380 without a remainder.

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

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 776

List of positive integer divisors of 776 that divides 776 without a remainder.

1, 2, 4, 8, 97, 194, 388, 776

Greatest Common Divisior

We found the divisors of 815, 380, 42, 776 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 815, 380, 42, 776 is 1.

Therefore, GCD of numbers 815, 380, 42, 776 is 1

Given Input Data is 815, 380, 42, 776

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

Prime Factorization of 815 is 5 x 163

Prime Factorization of 380 is 2 x 2 x 5 x 19

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 776 is 2 x 2 x 2 x 97

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(815, 380) = 61940

GCD(815, 380) = ( 815 x 380 ) / 61940

GCD(815, 380) = 309700 / 61940

GCD(815, 380) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 42

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

LCM(5, 42) = 210

GCD(5, 42) = ( 5 x 42 ) / 210

GCD(5, 42) = 210 / 210

GCD(5, 42) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 776

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

LCM(1, 776) = 776

GCD(1, 776) = ( 1 x 776 ) / 776

GCD(1, 776) = 776 / 776

GCD(1, 776) = 1

GCD of 815, 380, 42, 776 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 953, 308, 22, 288
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• GCD of 488, 385, 11, 427
• GCD of 580, 405, 63, 417
• GCD of 716, 428, 14, 877

1. What is the GCD of 815, 380, 42, 776?

GCD of 815, 380, 42, 776 is 1

2. Where do I get the detailed procedure to find GCD of 815, 380, 42, 776?

You can find a detailed procedure to find GCD of 815, 380, 42, 776 on our page.

3. How to find GCD of 815, 380, 42, 776 on a calculator?

You can find the GCD of 815, 380, 42, 776 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.