GCD of 121, 435, 15, 320 Calculator

Given Input numbers are 121, 435, 15, 320

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

Divisors of 121

List of positive integer divisors of 121 that divides 121 without a remainder.

1, 11, 121

Divisors of 435

List of positive integer divisors of 435 that divides 435 without a remainder.

1, 3, 5, 15, 29, 87, 145, 435

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 320

List of positive integer divisors of 320 that divides 320 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320

Greatest Common Divisior

We found the divisors of 121, 435, 15, 320 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 121, 435, 15, 320 is 1.

Therefore, GCD of numbers 121, 435, 15, 320 is 1

Given Input Data is 121, 435, 15, 320

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

Prime Factorization of 121 is 11 x 11

Prime Factorization of 435 is 3 x 5 x 29

Prime Factorization of 15 is 3 x 5

Prime Factorization of 320 is 2 x 2 x 2 x 2 x 2 x 2 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(121, 435) = 52635

GCD(121, 435) = ( 121 x 435 ) / 52635

GCD(121, 435) = 52635 / 52635

GCD(121, 435) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 15

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

LCM(1, 15) = 15

GCD(1, 15) = ( 1 x 15 ) / 15

GCD(1, 15) = 15 / 15

GCD(1, 15) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 320

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

LCM(1, 320) = 320

GCD(1, 320) = ( 1 x 320 ) / 320

GCD(1, 320) = 320 / 320

GCD(1, 320) = 1

GCD of 121, 435, 15, 320 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 677, 740, 34, 411
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• GCD of 842, 852, 74, 449

1. What is the GCD of 121, 435, 15, 320?

GCD of 121, 435, 15, 320 is 1

2. Where do I get the detailed procedure to find GCD of 121, 435, 15, 320?

You can find a detailed procedure to find GCD of 121, 435, 15, 320 on our page.

3. How to find GCD of 121, 435, 15, 320 on a calculator?

You can find the GCD of 121, 435, 15, 320 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.