<p>The question is from test 2, section 5, number 16 (grid-in):</p>

<p>A positive integer is said to be "trifactorable" if it is the product of three consecutive integers. How many positive integers less than 1000 are trifactorable?</p>

<p>The answer is 9. Please tell me how to derive this answers. I appreciate the help.</p>