Question

Fill in the blanks by choosing the appropriate word from the bracket.

If a number $a$ is exactly divisible by $b$, then $b$ is a _________ of $a$. (factor / multiple)

Answer 1

Definition of factor:

A number $a$ is said to be factor of a number $b$ if $a$divides $b$completely without leaving any remainder (i.e. leaving $0$ as remainder).

While multiple of a number is a number obtained when that number is multiplied by a natural number.

Consider the following example:

$20=5\times 4$

Here $5$ and $4$ are called factors of $20$ while $20$ is called multiple of $5$ and $4$.

Hence, if a number $a$ is exactly divisible by $b$, then $b$ is a factor of $a$.