Q108 / 180 · COMEDK 2020 · Mathematics
The number of positive divisors of 252 is
- A5
- B9
- C10
- Correct answerD18
Solution
We have,
$$
252=2^{2} \times 3^{2} \times 7^{1}
$$
$\therefore$ Number of positive divisors of
$$
252=(2+1)(2+1)(1+1)=3 \times 3 \times 2-18
$$
Hence, the correct answer is option: 'D'.