GCD of 617, 403, 380, 990 Calculator

Given Input numbers are 617, 403, 380, 990

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

Divisors of 617

List of positive integer divisors of 617 that divides 617 without a remainder.

1, 617

Divisors of 403

List of positive integer divisors of 403 that divides 403 without a remainder.

1, 13, 31, 403

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 990

List of positive integer divisors of 990 that divides 990 without a remainder.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

Greatest Common Divisior

We found the divisors of 617, 403, 380, 990 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 617, 403, 380, 990 is 1.

Therefore, GCD of numbers 617, 403, 380, 990 is 1

Given Input Data is 617, 403, 380, 990

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

Prime Factorization of 617 is 617

Prime Factorization of 403 is 13 x 31

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

Prime Factorization of 990 is 2 x 3 x 3 x 5 x 11

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(617, 403) = 248651

GCD(617, 403) = ( 617 x 403 ) / 248651

GCD(617, 403) = 248651 / 248651

GCD(617, 403) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 380

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

LCM(1, 380) = 380

GCD(1, 380) = ( 1 x 380 ) / 380

GCD(1, 380) = 380 / 380

GCD(1, 380) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 990

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

LCM(1, 990) = 990

GCD(1, 990) = ( 1 x 990 ) / 990

GCD(1, 990) = 990 / 990

GCD(1, 990) = 1

GCD of 617, 403, 380, 990 is 1

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1. What is the GCD of 617, 403, 380, 990?

GCD of 617, 403, 380, 990 is 1

2. Where do I get the detailed procedure to find GCD of 617, 403, 380, 990?

You can find a detailed procedure to find GCD of 617, 403, 380, 990 on our page.

3. How to find GCD of 617, 403, 380, 990 on a calculator?

You can find the GCD of 617, 403, 380, 990 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.