COMEDK · Maths · 1. Basic of Mathematics
The number of positive divisors of 252 is
- A 5
- B 9
- C 10
- D 18
Answer & Solution
Correct Answer
(D) 18
Step-by-step Solution
Detailed explanation
We have, \[ 252=2^{2} \times 3^{2} \times 7^{1} \] \(\therefore\) Number of positive divisors of \[ 252=(2+1)(2+1)(1+1)=3 \times 3 \times 2-18 \]
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