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wu :: forums    riddles    easy (Moderators: william wu, towr, SMQ, Grimbal, Eigenray, ThudnBlunder, Icarus)    Product Puzzle « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Product Puzzle  (Read 338 times) R Senior Riddler Addicted!!!     Gender: Posts: 502 Product Puzzle   « on: Mar 16th, 2010, 9:45am » Quote Modify Using digits 0 to 9 (each digit exactly once) make three numbers s.t. one of them is the product of the others. IP Logged The first experience seems like Magic, but the second tells you the Trick behind it. towr wu::riddles Moderator Uberpuzzler Some people are average, some are just mean.     Gender: Posts: 13730 Re: Product Puzzle   « Reply #1 on: Mar 17th, 2010, 8:25am » Quote Modify There seem to be quite a few solution, but I haven't found a better way than to just try everything.   Here's two solutions: 3*6819=20457 3*8169=24507 IP Logged Wikipedia, Google, Mathworld, Integer sequence DB neroneuman Newbie     Posts: 1 Re: Product Puzzle   « Reply #2 on: Mar 20th, 2010, 12:23pm » Quote Modify 3094*7=21658 IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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