Target Exam

CUET

Subject

-- Applied Mathematics - Section B2

Chapter

Numbers, Quantification and Numerical Applications

Question:

If $\omega (n)$ = Number of distinct prime factors of n, n ∈ N, then what is the value of $\omega (105)$ ?

Options:

1

4

3

2

Correct Answer:

3

Explanation:

The correct answer is option (3) : 3

$∵105=3×5×7$

$⇒\omega(105)=3$