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# GCD Calculator

## What is a GCD Calculator?

A GCD (Greatest Common Divisor) Calculator is a free online tool used to calculate the GCD of integers. This calculator will help you to find the GCD of two and three integers, within a few seconds.

### GCD Calculator

## How to Use the GCD Calculator?

Follow the steps given below and try to use the calculator.

**Step 1:**Enter two or three whole numbers in the given input boxes.**Step 2:**Click on**"Go"**to get the GCD of the numbers entered.**Step 3:**Click on the**"Reset"**button to clear the fields and enter the new set of numbers.

## How to Find the GCD of Two Numbers?

GCD is the largest positive integer that divides each of the two integers.

GCD (Greatest Common Divisor) is also known as GCF (Greatest Common Factor) or the HCF (Highest Common Factor).

## Solved Examples on GCD Calculator

**Example 1:**

Find the GCD of 6 and 12 and verify it using online gcd calculator.

**Solution:**

The common factors that divide 6 and 12 without leaving any remainder are 1, 2, and 6.

Out of these three, 6 is the greatest.

Therefore, GCD of (6, 12) = 6

Similarly,

- The GCD of 30 and 60 = 30
- The GCD of 42 and 48 = 6

Now, use the online gcd calculator and find the GCD of the following numbers:

- 80 and 90
- 26 and 130
- 300 and 450

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