GCD of 369, 455, 19, 221 Calculator

Given Input numbers are 369, 455, 19, 221

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

Divisors of 369

List of positive integer divisors of 369 that divides 369 without a remainder.

1, 3, 9, 41, 123, 369

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 19

List of positive integer divisors of 19 that divides 19 without a remainder.

1, 19

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Greatest Common Divisior

We found the divisors of 369, 455, 19, 221 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 369, 455, 19, 221 is 1.

Therefore, GCD of numbers 369, 455, 19, 221 is 1

Given Input Data is 369, 455, 19, 221

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

Prime Factorization of 369 is 3 x 3 x 41

Prime Factorization of 455 is 5 x 7 x 13

Prime Factorization of 19 is 19

Prime Factorization of 221 is 13 x 17

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(369, 455) = 167895

GCD(369, 455) = ( 369 x 455 ) / 167895

GCD(369, 455) = 167895 / 167895

GCD(369, 455) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 19

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

LCM(1, 19) = 19

GCD(1, 19) = ( 1 x 19 ) / 19

GCD(1, 19) = 19 / 19

GCD(1, 19) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 221

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

LCM(1, 221) = 221

GCD(1, 221) = ( 1 x 221 ) / 221

GCD(1, 221) = 221 / 221

GCD(1, 221) = 1

GCD of 369, 455, 19, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 933, 200, 38, 623
• GCD of 187, 640, 26, 637
• GCD of 839, 225, 76, 244
• GCD of 558, 479, 40, 147
• GCD of 715, 699, 35, 163

1. What is the GCD of 369, 455, 19, 221?

GCD of 369, 455, 19, 221 is 1

2. Where do I get the detailed procedure to find GCD of 369, 455, 19, 221?

You can find a detailed procedure to find GCD of 369, 455, 19, 221 on our page.

3. How to find GCD of 369, 455, 19, 221 on a calculator?

You can find the GCD of 369, 455, 19, 221 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.