The GCD Calculator is a free online tool designer for you that displays the GCD of the given integers. In ancient mathematics, the Greatest Common Divisor (GCD) is defined as the one where the largest positive integer divides each of the integers.

The greatest common divisor is sometimes also called the Highest Common Factor (HCF) or the greatest common denominator. For example, the GCD of 8 and 12 is 4 as both the numbers are divisible by 4. 

Likewise, the divisors of 8 can be 2, 4 and 8. The divisors of 12 can be 2, 3, 4, 6 and 12. From both of these, 2 and 4 are common and the greatest divisor of 8 and 12 is 4. Hence, the GCD of 8 and 12 is 4.

The procedure to use the GCD calculator is as follows:

Step 1: Simply enter the numbers in the respective input field.

Step 2: Then hit the button “Solve” to get the result.

Step 3: Finally, the GCD of the given numbers will be displayed in the output field or another tab.