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Apositiveintegerissaidtobe"tri-factorable"ifitistheproductofthreeconsecutiveintegers.Howmanypositiveintegerslessthan1,000aretri-factorable?求翻译和解!

题目详情
A positive integer is said to be "tri-factorable" if it is the product of three consecutive integers.How many positive integers less than 1,000 are tri-factorable?
求翻译和解!
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答案和解析
(x-1)x(x+1)