Question

If 2 and 5 are factors of a number, what will be the unit’s digit of that number?

• A. 3
• B. 0
• C. 2
• D. 1

Answer 1

The correct option is B

0

If 2 and 5 are factors, then $2\times 5=10$ is also a factor.
$\Rightarrow$ the number is divisible by 10.
Therefore, unit's digit will be 0.