GCD of 245, 191, 77, 400 Calculator

Given Input numbers are 245, 191, 77, 400

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

Divisors of 245

List of positive integer divisors of 245 that divides 245 without a remainder.

1, 5, 7, 35, 49, 245

Divisors of 191

List of positive integer divisors of 191 that divides 191 without a remainder.

1, 191

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 400

List of positive integer divisors of 400 that divides 400 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

Greatest Common Divisior

We found the divisors of 245, 191, 77, 400 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 245, 191, 77, 400 is 1.

Therefore, GCD of numbers 245, 191, 77, 400 is 1

Given Input Data is 245, 191, 77, 400

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

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 191 is 191

Prime Factorization of 77 is 7 x 11

Prime Factorization of 400 is 2 x 2 x 2 x 2 x 5 x 5

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(245, 191) = 46795

GCD(245, 191) = ( 245 x 191 ) / 46795

GCD(245, 191) = 46795 / 46795

GCD(245, 191) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 77

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

LCM(1, 77) = 77

GCD(1, 77) = ( 1 x 77 ) / 77

GCD(1, 77) = 77 / 77

GCD(1, 77) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 400

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

LCM(1, 400) = 400

GCD(1, 400) = ( 1 x 400 ) / 400

GCD(1, 400) = 400 / 400

GCD(1, 400) = 1

GCD of 245, 191, 77, 400 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 385, 389, 74, 244
• GCD of 134, 834, 96, 288
• GCD of 955, 209, 46, 872
• GCD of 810, 882, 56, 822
• GCD of 320, 515, 48, 656

1. What is the GCD of 245, 191, 77, 400?

GCD of 245, 191, 77, 400 is 1

2. Where do I get the detailed procedure to find GCD of 245, 191, 77, 400?

You can find a detailed procedure to find GCD of 245, 191, 77, 400 on our page.

3. How to find GCD of 245, 191, 77, 400 on a calculator?

You can find the GCD of 245, 191, 77, 400 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.