GCD of 121, 480, 55, 128 Calculator

Given Input numbers are 121, 480, 55, 128

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 480

List of positive integer divisors of 480 that divides 480 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480

Divisors of 55

List of positive integer divisors of 55 that divides 55 without a remainder.

1, 5, 11, 55

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Greatest Common Divisior

We found the divisors of 121, 480, 55, 128 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 121, 480, 55, 128 is 1.

Therefore, GCD of numbers 121, 480, 55, 128 is 1

Given Input Data is 121, 480, 55, 128

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

Prime Factorization of 121 is 11 x 11

Prime Factorization of 480 is 2 x 2 x 2 x 2 x 2 x 3 x 5

Prime Factorization of 55 is 5 x 11

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

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, 480) = 58080

GCD(121, 480) = ( 121 x 480 ) / 58080

GCD(121, 480) = 58080 / 58080

GCD(121, 480) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 55

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

LCM(1, 55) = 55

GCD(1, 55) = ( 1 x 55 ) / 55

GCD(1, 55) = 55 / 55

GCD(1, 55) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 128

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

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

GCD(1, 128) = 128 / 128

GCD(1, 128) = 1

GCD of 121, 480, 55, 128 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 174, 847, 58, 559
• GCD of 136, 881, 93, 433
• GCD of 283, 620, 30, 598
• GCD of 646, 969, 45, 300
• GCD of 102, 490, 16, 283

1. What is the GCD of 121, 480, 55, 128?

GCD of 121, 480, 55, 128 is 1

2. Where do I get the detailed procedure to find GCD of 121, 480, 55, 128?

You can find a detailed procedure to find GCD of 121, 480, 55, 128 on our page.

3. How to find GCD of 121, 480, 55, 128 on a calculator?

You can find the GCD of 121, 480, 55, 128 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.