GCD of 840, 793, 39, 407 Calculator

Given Input numbers are 840, 793, 39, 407

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

Divisors of 840

List of positive integer divisors of 840 that divides 840 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 793

List of positive integer divisors of 793 that divides 793 without a remainder.

1, 13, 61, 793

Divisors of 39

List of positive integer divisors of 39 that divides 39 without a remainder.

1, 3, 13, 39

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 840, 793, 39, 407 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 840, 793, 39, 407 is 1.

Therefore, GCD of numbers 840, 793, 39, 407 is 1

Given Input Data is 840, 793, 39, 407

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

Prime Factorization of 840 is 2 x 2 x 2 x 3 x 5 x 7

Prime Factorization of 793 is 13 x 61

Prime Factorization of 39 is 3 x 13

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(840, 793) = 666120

GCD(840, 793) = ( 840 x 793 ) / 666120

GCD(840, 793) = 666120 / 666120

GCD(840, 793) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 39

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

LCM(1, 39) = 39

GCD(1, 39) = ( 1 x 39 ) / 39

GCD(1, 39) = 39 / 39

GCD(1, 39) = 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 840, 793, 39, 407 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 257, 677, 36, 272
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• GCD of 902, 913, 33, 562

1. What is the GCD of 840, 793, 39, 407?

GCD of 840, 793, 39, 407 is 1

2. Where do I get the detailed procedure to find GCD of 840, 793, 39, 407?

You can find a detailed procedure to find GCD of 840, 793, 39, 407 on our page.

3. How to find GCD of 840, 793, 39, 407 on a calculator?

You can find the GCD of 840, 793, 39, 407 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.