Kannagi wrote:

Hi,

I have a doubt in questions where we are asked to find the number of distinct factors of a number.

Do we have to consider the total number of factors which are positive factors + negative factors or only the positive factors?

Example:

Q. Distinct prime factors of 36

Positive factors: 9

Negative factors: 9

So is the answer to the question be 9 or 18 ?

Can the factors be negative or they are always positive?

Factors are always positive.

No of distinct prime factors of 36 is 2 (they are 2 and 3)

No of distinct factors of 36 is 9.

Multiple can be positive/0/negative.

There are infinite multiples of any integer e.g. multiples of 36 are 36, 72, 0, -36, -72 etc.

0 is a multiple of every number.

_________________

Karishma

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