Multiples of a Number

Take a number and multiply it by a quantity/factor/coefficient (2, 3, 4 etc.) to get a multiple.

It exists an infinite number of multiples, so it is impossible to list all multiples of a given number, dCode suggest to fix an upper and lower bound (all multiples between A and B).

Example: $N=3$, so $N\times 2=6$, $6$ is a multiple of $3$,
$N\times 3=9$, $9$ is a multiple of $3$, etc.

For school multiplications, use a calculator here (link)

Divide A by B, if the rest of the Euclidean division is 0, then A is a multiple of B, and B is a divisor of A.

Example: Is 60 a multiple of 4? Divide 60 by 4, 60/4 = 15 (integer without decimals after the decimal point), remain 0, so 60 is a multiple of 4 and 4 is a divisor of 60.

Example: Is 22 a multiple of 4? Divide 22 by 4, 22/4 = 5.5 (non-integer number, with decimals after decimal point) ie 22/4 = 5 + remainder 2, so 22 is not a multiple of 4 and 4 is not a divisor of 22.

dCode has a tool to calculate the LCM (least common multiple) of two numbers. Others multiples are multiples of the given LCM.

Example: The LCM for $3$ and $8$ is $24$, the multiples common to $3$ and $8$ are all the multiples of $24$ : $24,48,72,96,...$

Yes, in theory, 0 is multiple of all numbers because whatever $n$, $0/n=0$. In practice, it is often omitted from the list of multiples.

Zero is a multiple of every integer (except itself)

Yes, all numbers are multiples of 1, but it is wrong to say that 1 is a multiple of all numbers, but it is true to say that 1 is a divisor of all numbers.