GCD of 781, 955, 257, 396 Calculator

Given Input numbers are 781, 955, 257, 396

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

Divisors of 781

List of positive integer divisors of 781 that divides 781 without a remainder.

1, 11, 71, 781

Divisors of 955

List of positive integer divisors of 955 that divides 955 without a remainder.

1, 5, 191, 955

Divisors of 257

List of positive integer divisors of 257 that divides 257 without a remainder.

1, 257

Divisors of 396

List of positive integer divisors of 396 that divides 396 without a remainder.

1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396

Greatest Common Divisior

We found the divisors of 781, 955, 257, 396 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 781, 955, 257, 396 is 1.

Therefore, GCD of numbers 781, 955, 257, 396 is 1

Given Input Data is 781, 955, 257, 396

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

Prime Factorization of 781 is 11 x 71

Prime Factorization of 955 is 5 x 191

Prime Factorization of 257 is 257

Prime Factorization of 396 is 2 x 2 x 3 x 3 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(781, 955) = 745855

GCD(781, 955) = ( 781 x 955 ) / 745855

GCD(781, 955) = 745855 / 745855

GCD(781, 955) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 257

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

LCM(1, 257) = 257

GCD(1, 257) = ( 1 x 257 ) / 257

GCD(1, 257) = 257 / 257

GCD(1, 257) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 396

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

LCM(1, 396) = 396

GCD(1, 396) = ( 1 x 396 ) / 396

GCD(1, 396) = 396 / 396

GCD(1, 396) = 1

GCD of 781, 955, 257, 396 is 1

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1. What is the GCD of 781, 955, 257, 396?

GCD of 781, 955, 257, 396 is 1

2. Where do I get the detailed procedure to find GCD of 781, 955, 257, 396?

You can find a detailed procedure to find GCD of 781, 955, 257, 396 on our page.

3. How to find GCD of 781, 955, 257, 396 on a calculator?

You can find the GCD of 781, 955, 257, 396 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.