typically covers Primes, Highest Common Factor HCF…

Number theory is all about understanding integers – the whole numbers (positive, negative, or zero). We'll focus on positive integers for now.

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The Highest Common Factor (HCF), also known as the Greatest Common Divisor (GCD), is the largest positive integer that divides two or more integers without leaving a remainder. Let's look at how to find it.

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The Lowest Common Multiple (LCM) of two or more numbers is the smallest positive whole number that is a multiple of all those numbers. Think of it as the first number they all "meet" at when you list their multiples.

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The Highest Common Factor (HCF), also known as the Greatest Common Divisor (GCD), is the biggest number that divides into two or more numbers evenly. Let's look at how to find it.

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