What is GCD (Greatest Common Divisor)?

Greatest Common Divisor (GCD), also known as the Highest Common Factor (HCF), or GCF is a mathematical concept that represents the largest positive integer that evenly divides two or more integers without leaving a remainder. In other words, it is the greatest number that both numbers can be divided by.

For example, consider the numbers 12 and 18. The divisors of 12 are 1, 2, 3, 4, 6, and 12, while the divisors of 18 are 1, 2, 3, 6, 9, and 18. The largest number that both 12 and 18 can be divided by without leaving a remainder is 6. Therefore, the GCD of 12 and 18 is 6.

Read More about GCF (another name for GCD).

Is HCF same as GCD?

Yes, HCF (Highest Common Factor) is the same as GCD (Greatest Common Divisor).

As both HCF or GCD represents the largest positive integer that can divide two or more numbers without leaving a remainder. So, HCF and GCD essentially convey the same idea and are used in different regions or educational systems interchangeably.

GCD of Some Common Pairs

GCD or HCF of some of the common pairs of numbers are:

• GCD of 12 and 18: 6
• GCD of 24 and 36: 12
• GCD of 14 and 28: 14
• GCD of 16 and 24: 8
• GCD of 30 and 45: 15
• GCD of 20 and 25: 5
• GCD of 8 and 12: 4
• GCD of 9 and 27: 9
• GCD of 36 and 48: 12
• GCD of 21 and 28: 7

GCF or GCD or HCF Calculator is a tool designed by experts at w3wiki to simplify the lives of those who need to calculate the GCD of numbers. With this calculator, you can input numbers separated by commas, and the calculator will provide their GCD.

GCD of a set of numbers is the greatest possible number that can divide all the numbers under consideration without leaving any remainder.