GCD of 45, 33, 42 Calculator

Given Input numbers are 45, 33, 42

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

Divisors of 45

List of positive integer divisors of 45 that divides 45 without a remainder.

1, 3, 5, 9, 15, 45

Divisors of 33

List of positive integer divisors of 33 that divides 33 without a remainder.

1, 3, 11, 33

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Greatest Common Divisior

We found the divisors of 45, 33, 42 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 45, 33, 42 is 3.

Therefore, GCD of numbers 45, 33, 42 is 3

Given Input Data is 45, 33, 42

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

Prime Factorization of 45 is 3 x 3 x 5

Prime Factorization of 33 is 3 x 11

Prime Factorization of 42 is 2 x 3 x 7

Highest common occurrences in the given inputs are 3¹

Multiplying them we get the GCD as 3

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(45, 33) = 495

GCD(45, 33) = ( 45 x 33 ) / 495

GCD(45, 33) = 1485 / 495

GCD(45, 33) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 42

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

LCM(3, 42) = 42

GCD(3, 42) = ( 3 x 42 ) / 42

GCD(3, 42) = 126 / 42

GCD(3, 42) = 3

GCD of 45, 33, 42 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 36, 52, 35
• GCD of 17, 42, 30
• GCD of 89, 71, 71
• GCD of 20, 69, 44
• GCD of 54, 81, 20

1. What is the GCD of 45, 33, 42?

GCD of 45, 33, 42 is 3

2. Where do I get the detailed procedure to find GCD of 45, 33, 42?

You can find a detailed procedure to find GCD of 45, 33, 42 on our page.

3. How to find GCD of 45, 33, 42 on a calculator?

You can find the GCD of 45, 33, 42 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.