Question

Every multiple of a number leaves a remainder equals to ____ when divided by the number itself.

• A. 1
• B. the number itself
• C. the multiple

Answer 1

For a multiple of any number, the number itself is a factor of the multiple.
For example:
25 is a multiple of 5.
Factors of 25: 1, 5, and 25

So, when a number is divided by its factors, the remainder is 0.