GCD of 455, 157, 981, 397 Calculator

Given Input numbers are 455, 157, 981, 397

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

Divisors of 455

List of positive integer divisors of 455 that divides 455 without a remainder.

1, 5, 7, 13, 35, 65, 91, 455

Divisors of 157

List of positive integer divisors of 157 that divides 157 without a remainder.

1, 157

Divisors of 981

List of positive integer divisors of 981 that divides 981 without a remainder.

1, 3, 9, 109, 327, 981

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 455, 157, 981, 397 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 455, 157, 981, 397 is 1.

Therefore, GCD of numbers 455, 157, 981, 397 is 1

Given Input Data is 455, 157, 981, 397

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

Prime Factorization of 455 is 5 x 7 x 13

Prime Factorization of 157 is 157

Prime Factorization of 981 is 3 x 3 x 109

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(455, 157) = 71435

GCD(455, 157) = ( 455 x 157 ) / 71435

GCD(455, 157) = 71435 / 71435

GCD(455, 157) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 981

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

LCM(1, 981) = 981

GCD(1, 981) = ( 1 x 981 ) / 981

GCD(1, 981) = 981 / 981

GCD(1, 981) = 1

Step3:

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 455, 157, 981, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 267, 891, 386, 493
• GCD of 598, 462, 273, 702
• GCD of 282, 449, 458, 540
• GCD of 497, 399, 336, 384
• GCD of 340, 303, 969, 626

1. What is the GCD of 455, 157, 981, 397?

GCD of 455, 157, 981, 397 is 1

2. Where do I get the detailed procedure to find GCD of 455, 157, 981, 397?

You can find a detailed procedure to find GCD of 455, 157, 981, 397 on our page.

3. How to find GCD of 455, 157, 981, 397 on a calculator?

You can find the GCD of 455, 157, 981, 397 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.