GCD of 478, 521, 840 Calculator

Given Input numbers are 478, 521, 840

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

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Divisors of 521

List of positive integer divisors of 521 that divides 521 without a remainder.

1, 521

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

Greatest Common Divisior

We found the divisors of 478, 521, 840 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 478, 521, 840 is 1.

Therefore, GCD of numbers 478, 521, 840 is 1

Given Input Data is 478, 521, 840

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

Prime Factorization of 478 is 2 x 239

Prime Factorization of 521 is 521

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

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(478, 521) = 249038

GCD(478, 521) = ( 478 x 521 ) / 249038

GCD(478, 521) = 249038 / 249038

GCD(478, 521) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 840

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

LCM(1, 840) = 840

GCD(1, 840) = ( 1 x 840 ) / 840

GCD(1, 840) = 840 / 840

GCD(1, 840) = 1

GCD of 478, 521, 840 is 1

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1. What is the GCD of 478, 521, 840?

GCD of 478, 521, 840 is 1

2. Where do I get the detailed procedure to find GCD of 478, 521, 840?

You can find a detailed procedure to find GCD of 478, 521, 840 on our page.

3. How to find GCD of 478, 521, 840 on a calculator?

You can find the GCD of 478, 521, 840 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.