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The Highest Common Factor (HCF) of two numbers is the highest possible number which divides both the numbers completely. The highest common factor (HCF) is also called the greatest common …

Apr 15, 2026 · To find the HCF of two or more fractions, first find the HCF of the numerators and the LCM of the denominators, then divide them. HCF of fractions = HCF of the numerators ÷ LCM of the …

Aug 1, 2025 · The greatest common factor (GCF or GCD or HCF) of a set of whole numbers is the largest positive integer that divides evenly into all numbers with zero remainder.

HCF stands for highest common factor and LCM stands for least common multiple. HCF is the greatest integer that divides all numbers and LCM is the smallest integer that is divisible by all numbers.

Explore our updated revision resources for GCSE Maths: HCF and LCM using prime factors, with step-by-step slideshows, quizzes, practice exam questions, and more!

What is the "Greatest Common Factor" ? It is simply the largest of the common factors. In our previous example, the largest of the common factors is 15, so the Greatest Common Factor of 15, 30 and 105 …

Feb 24, 2019 · The highest common factor (HCF) is also called the greatest common factor (GCF) or greatest common divisor (GCD). To find the HCF, start by making a list of all of the factors for each …

Feb 13, 2026 · When two or more numbers have more than one common factor, the greatest among them is called their highest common factor (H.C.F.). In other words, the H.C.F. of two or more …

The HCF Calculator is a mathematical tool used to determine the Highest Common Factor (also known as Greatest Common Divisor) of two or more numbers. This is the largest number that divides all …