Question 9

If $$N = 9^9$$, then N is divisible by how many positive perfect cubes?

Solution

$$N = 9^9$$ is divisible by $$1^3,\ 3^3,\ 9^3,\ 27^3,\ 81^3,243^{3\ }and\ 729^3\ .$$

So, B is correct choice.


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