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Perfect Squares (Posted on 2003-04-05) Difficulty: 5 of 5
Show that the numbers of the form:

444444....4444888888....8889

[Where there are 'k' Fours, '(k-1)' Eights and 'Exactly One' 9],

are always perfect squares.

(For example the sequence of numbers: 49, 4489, 444889, ....etc. and so on are always perfect squares).

See The Solution Submitted by Ravi Raja    
Rating: 4.0000 (3 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionEven simpler.broll2012-09-17 03:10:19
Solution(simple)Praneeth Yalavarthi2007-07-10 13:06:21
re(3): solutionRavi Raja2003-04-07 04:29:26
Some ThoughtsPartial ideaGamer2003-04-06 05:03:37
re(2): solutionGamer2003-04-06 04:44:16
re: solutionRavi Raja2003-04-06 04:23:41
re: solutionRavi Raja2003-04-06 04:18:56
re: solutionRavi Raja2003-04-06 04:12:57
SolutionsolutionCharlie2003-04-05 13:42:37
UmmDJ2003-04-05 05:56:26
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