If a and b are prime numbers, which of the following is true?
I. a2 has three positive integer factors.
II. ab has four positive integer factors.
III. a3 has four positive integer factors.
Codes
| A. | I and II only |
| B. | II and III only |
| C. | All of these |
| D. | None of these |
Answer : C Explanation :
Factors of a2 are 1. a and a2. |
|
|
Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
