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Multiplication Table (Posted on 2006-07-07) Difficulty: 3 of 5
Imagine a multiplication table (like the one below, except it continues on forever):

   1   2   3   4     
 +---+---+---+---+---
1| 1 | 2 | 3 | 4 |...
 +---+---+---+---+---
2| 2 | 4 | 6 | 8 |...
 +---+---+---+---+---
3| 3 | 6 | 9 | 12|...
 +---+---+---+---+---
4| 4 | 8 | 12| 16|...
 +---+---+---+---+---
 |...|...|...|...|...

Find three of the same number in a straight line somewhere within the table. If this is not possible, show why not.

No Solution Yet Submitted by tomarken    
Rating: 3.0000 (4 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
It works (solution)Mattias2006-07-22 05:39:28
re: Getting less rigorous (spoiler)Dej Mar2006-07-08 20:34:14
re: A better answerLarry2006-07-08 15:57:09
On the other handJoe2006-07-08 10:55:24
Just from a kid in high school. (kinda a solution if you want)Liz2006-07-07 23:35:12
No Subjectstonicus2006-07-07 22:29:43
another solutionDaniel2006-07-07 16:32:07
SolutionA better answerOld Original Oskar!2006-07-07 14:34:10
re(2): Getting less rigorous (spoiler)Steve Herman2006-07-07 14:00:35
re: Getting less rigorous (spoiler)Jyqm2006-07-07 11:35:54
Some ThoughtsGetting less rigorous (spoiler)Steve Herman2006-07-07 11:08:57
Get real (Solution & spoiler)Steve Herman2006-07-07 11:04:04
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