Carcass wrote:
The positive integer n is divisible by 16. If √n is greater than 16, which of the following could be the value of \(\frac{n}{16 }\)?
(A) 13
(B) 14
(C) 15
(D) 16
(E) 17
Given: Positive integer n is divisible by 16 and √n is greater than 16.
Inference: n's prime factorization will be of the form n = 16 * x, where x is the product of the remaining digits.
Now, if √n > 16,
√(16 * x) > 16
4 * √x > 16
√x > 4
Since the question asks for a potential value of \(\frac{n}{16}\), we need to find a potential value of x (see the inference).
If √x > 4, x has to be greater than 16. The only answer choice that matches is 17.
Hence, option
E is correct.