GCD of 257, 747, 397 Calculator

Given Input numbers are 257, 747, 397

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

Divisors of 257

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

1, 257

Divisors of 747

List of positive integer divisors of 747 that divides 747 without a remainder.

1, 3, 9, 83, 249, 747

Divisors of 397

List of positive integer divisors of 397 that divides 397 without a remainder.

1, 397

Greatest Common Divisior

We found the divisors of 257, 747, 397 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 257, 747, 397 is 1.

Therefore, GCD of numbers 257, 747, 397 is 1

Given Input Data is 257, 747, 397

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

Prime Factorization of 257 is 257

Prime Factorization of 747 is 3 x 3 x 83

Prime Factorization of 397 is 397

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(257, 747) = 191979

GCD(257, 747) = ( 257 x 747 ) / 191979

GCD(257, 747) = 191979 / 191979

GCD(257, 747) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 397

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

LCM(1, 397) = 397

GCD(1, 397) = ( 1 x 397 ) / 397

GCD(1, 397) = 397 / 397

GCD(1, 397) = 1

GCD of 257, 747, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 871, 926, 966
• GCD of 142, 403, 145
• GCD of 355, 635, 245
• GCD of 359, 889, 925
• GCD of 368, 475, 460

1. What is the GCD of 257, 747, 397?

GCD of 257, 747, 397 is 1

2. Where do I get the detailed procedure to find GCD of 257, 747, 397?

You can find a detailed procedure to find GCD of 257, 747, 397 on our page.

3. How to find GCD of 257, 747, 397 on a calculator?

You can find the GCD of 257, 747, 397 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.