GCD of 551, 987, 404, 680 Calculator

Given Input numbers are 551, 987, 404, 680

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

Divisors of 551

List of positive integer divisors of 551 that divides 551 without a remainder.

1, 19, 29, 551

Divisors of 987

List of positive integer divisors of 987 that divides 987 without a remainder.

1, 3, 7, 21, 47, 141, 329, 987

Divisors of 404

List of positive integer divisors of 404 that divides 404 without a remainder.

1, 2, 4, 101, 202, 404

Divisors of 680

List of positive integer divisors of 680 that divides 680 without a remainder.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Greatest Common Divisior

We found the divisors of 551, 987, 404, 680 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 551, 987, 404, 680 is 1.

Therefore, GCD of numbers 551, 987, 404, 680 is 1

Given Input Data is 551, 987, 404, 680

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

Prime Factorization of 551 is 19 x 29

Prime Factorization of 987 is 3 x 7 x 47

Prime Factorization of 404 is 2 x 2 x 101

Prime Factorization of 680 is 2 x 2 x 2 x 5 x 17

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(551, 987) = 543837

GCD(551, 987) = ( 551 x 987 ) / 543837

GCD(551, 987) = 543837 / 543837

GCD(551, 987) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 404

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

LCM(1, 404) = 404

GCD(1, 404) = ( 1 x 404 ) / 404

GCD(1, 404) = 404 / 404

GCD(1, 404) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 680

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

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

GCD(1, 680) = 680 / 680

GCD(1, 680) = 1

GCD of 551, 987, 404, 680 is 1

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1. What is the GCD of 551, 987, 404, 680?

GCD of 551, 987, 404, 680 is 1

2. Where do I get the detailed procedure to find GCD of 551, 987, 404, 680?

You can find a detailed procedure to find GCD of 551, 987, 404, 680 on our page.

3. How to find GCD of 551, 987, 404, 680 on a calculator?

You can find the GCD of 551, 987, 404, 680 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.