GCD of 840, 145, 479, 979 Calculator

Given Input numbers are 840, 145, 479, 979

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 145

List of positive integer divisors of 145 that divides 145 without a remainder.

1, 5, 29, 145

Divisors of 479

List of positive integer divisors of 479 that divides 479 without a remainder.

1, 479

Divisors of 979

List of positive integer divisors of 979 that divides 979 without a remainder.

1, 11, 89, 979

Greatest Common Divisior

We found the divisors of 840, 145, 479, 979 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 840, 145, 479, 979 is 1.

Therefore, GCD of numbers 840, 145, 479, 979 is 1

Given Input Data is 840, 145, 479, 979

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 145 is 5 x 29

Prime Factorization of 479 is 479

Prime Factorization of 979 is 11 x 89

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, 145) = 24360

GCD(840, 145) = ( 840 x 145 ) / 24360

GCD(840, 145) = 121800 / 24360

GCD(840, 145) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 479

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

LCM(5, 479) = 2395

GCD(5, 479) = ( 5 x 479 ) / 2395

GCD(5, 479) = 2395 / 2395

GCD(5, 479) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 979

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

LCM(1, 979) = 979

GCD(1, 979) = ( 1 x 979 ) / 979

GCD(1, 979) = 979 / 979

GCD(1, 979) = 1

GCD of 840, 145, 479, 979 is 1

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1. What is the GCD of 840, 145, 479, 979?

GCD of 840, 145, 479, 979 is 1

2. Where do I get the detailed procedure to find GCD of 840, 145, 479, 979?

You can find a detailed procedure to find GCD of 840, 145, 479, 979 on our page.

3. How to find GCD of 840, 145, 479, 979 on a calculator?

You can find the GCD of 840, 145, 479, 979 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.