The divisors \(d\) of a natural number \(n\) are the natural numbers such that \(\dfrac{n}{d}\in \mathbb{N}\).
For example, for \(6\) the divisors are \(1, 2, 3, 6\).
Divisors cannot be bigger than the number they are dividing.
For any number \(n \in \mathbb{N}^+\):
\(\dfrac{n}{n}=1\)
\(\dfrac{n}{1}=n\)
Both \(1\) and \(n\) are divisors.
A common divisor is a number which is a divisor to two supplied numbers.
The greatest common divisor of \(2\) numbers is as the name suggests.
So \(GCD(18,24)=6\)
The multiple of a number is it added to itself iteratively.
The multiples of \(18\) for example are:
\([18,36,54,72,90,...]\)
And for \(24\):
\([24,48,72,96,120,...]\)
The lowest common multiple of \(2\) numbers is again as the name suggests.
So \(LCM(18,24)=72\).
Also known as relatively prime.
Greatest common divisor is 1.