GCD of 787, 620, 144, 681 Calculator

Given Input numbers are 787, 620, 144, 681

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

Divisors of 787

List of positive integer divisors of 787 that divides 787 without a remainder.

1, 787

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 144

List of positive integer divisors of 144 that divides 144 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Greatest Common Divisior

We found the divisors of 787, 620, 144, 681 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 787, 620, 144, 681 is 1.

Therefore, GCD of numbers 787, 620, 144, 681 is 1

Given Input Data is 787, 620, 144, 681

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

Prime Factorization of 787 is 787

Prime Factorization of 620 is 2 x 2 x 5 x 31

Prime Factorization of 144 is 2 x 2 x 2 x 2 x 3 x 3

Prime Factorization of 681 is 3 x 227

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(787, 620) = 487940

GCD(787, 620) = ( 787 x 620 ) / 487940

GCD(787, 620) = 487940 / 487940

GCD(787, 620) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 144

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

LCM(1, 144) = 144

GCD(1, 144) = ( 1 x 144 ) / 144

GCD(1, 144) = 144 / 144

GCD(1, 144) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

GCD of 787, 620, 144, 681 is 1

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1. What is the GCD of 787, 620, 144, 681?

GCD of 787, 620, 144, 681 is 1

2. Where do I get the detailed procedure to find GCD of 787, 620, 144, 681?

You can find a detailed procedure to find GCD of 787, 620, 144, 681 on our page.

3. How to find GCD of 787, 620, 144, 681 on a calculator?

You can find the GCD of 787, 620, 144, 681 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.