How does HCF work?

The Highest Common Factor (HCF), also known as the Greatest Common Divisor (GCD), is the largest number that divides two or more integers without leaving a remainder. To find the HCF, one can list the factors of each number and identify the highest one they share, or use methods such as prime factorization or the Euclidean algorithm. It is useful in simplifying fractions and solving problems involving ratiOS. Essentially, HCF helps to determine the largest shared portion among numbers.