Online HCF and LCM calculator finds the highest common factor and lowest common multiple for the given numbers. Use HCF and LCM finder to calculate the LCM/ HCF . The full form of HCF /GCD is the Highest Common Factor/Greatest Common Divisor (Both terms mean the same thing), while the full form of LCM is the Least Common Multiple. HCF is the largest number that divides two or more numbers without leaving a remainder, whereas LCM is the smallest multiple that is divisible by two or more numbers. Learn how to find the HCF (Highest Common Factor) easily using step-by-step methods, solved examples, formulas, and real-life questions. Boost exam scores with Vedantu's expert Maths guide. The HCF formula helps in finding the highest common factor of two or more numbers. Understand the HCF Formula with Derivation, Examples, and FAQs.