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 Missing digits (Posted on 2004-09-04)
Multiplying three consecutive even numbers gives 87*****8, where each "*" stands for a digit. What are the missing numbers?

 Submitted by Federico Kereki Rating: 2.2857 (7 votes) Solution: (Hide) If P is the middle even number, the product is (P-2)P(P+2)= P^3-4P. This result must be between 87000008 and 87999998; we can approximate P by taking cube roots, and we find P should be 444, which does work out: 442*444*446= 87526608

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 Subject Author Date Puzzle Resolution K Sengupta 2007-06-25 15:47:35 Answer K Sengupta 2007-06-25 15:30:05 No Subject doremi 2004-10-29 20:23:52 Solution, probably nothing new nikki 2004-09-07 14:27:04 answer Jim 2004-09-07 10:18:38 Cube Roots brianjn 2004-09-04 21:07:17 Answer Oskar 2004-09-04 18:47:50 Solution Dan Blume 2004-09-04 17:00:45 Solution David Shin 2004-09-04 09:47:58

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