GCD of 290, 843, 640, 771 Calculator

Given Input numbers are 290, 843, 640, 771

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

Divisors of 290

List of positive integer divisors of 290 that divides 290 without a remainder.

1, 2, 5, 10, 29, 58, 145, 290

Divisors of 843

List of positive integer divisors of 843 that divides 843 without a remainder.

1, 3, 281, 843

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Greatest Common Divisior

We found the divisors of 290, 843, 640, 771 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 290, 843, 640, 771 is 1.

Therefore, GCD of numbers 290, 843, 640, 771 is 1

Given Input Data is 290, 843, 640, 771

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

Prime Factorization of 290 is 2 x 5 x 29

Prime Factorization of 843 is 3 x 281

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 771 is 3 x 257

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(290, 843) = 244470

GCD(290, 843) = ( 290 x 843 ) / 244470

GCD(290, 843) = 244470 / 244470

GCD(290, 843) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 640

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

LCM(1, 640) = 640

GCD(1, 640) = ( 1 x 640 ) / 640

GCD(1, 640) = 640 / 640

GCD(1, 640) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 771

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

LCM(1, 771) = 771

GCD(1, 771) = ( 1 x 771 ) / 771

GCD(1, 771) = 771 / 771

GCD(1, 771) = 1

GCD of 290, 843, 640, 771 is 1

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1. What is the GCD of 290, 843, 640, 771?

GCD of 290, 843, 640, 771 is 1

2. Where do I get the detailed procedure to find GCD of 290, 843, 640, 771?

You can find a detailed procedure to find GCD of 290, 843, 640, 771 on our page.

3. How to find GCD of 290, 843, 640, 771 on a calculator?

You can find the GCD of 290, 843, 640, 771 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.