Find the number of factors for the number 148?

The correct option is C 6
Factorizing 148 into prime factors.
148 = 2 × 74 = 2 × 2 × 37
= <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $2^2$ × ${37}^1$
Number of factors of 148 is product of (Exponents of factors + 1) of prime factors.
So, (2 + 1) × (1 + 1) = 3 × 2
= 6
Those are 1, 2, 4, 37, 74, 148.