Question 79

How many of the factors of 512 are perfect squares?

Solution

Share

$$512=2^9$$

For the factors to be perfect square, the power should be even. 

The possible powers are 0, 2, 4, 6 and 8.

Hence, there are 5 factors which are in the form of a perfect square. 

Get AI Help

Create a FREE account and get:

  • Download RRB Study Material PDF
  • 45+ RRB previous papers with solutions PDF
  • 300+ Online RRB Tests for Free

Join CAT 2026 course by 5-Time CAT 100%iler

Crack CAT 2026 & Other Exams with Cracku!

Enroll Now
Ask AI