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Move the 2 - double the number (Posted on 2002-04-19) Difficulty: 3 of 5
A certain number ends with the digit 2. Moving the 2 from the end of the number to its front doubles it. Can you find this number?

(Hint: it's quite large)

See The Solution Submitted by levik    
Rating: 4.1111 (9 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionThe numberMath Man2015-11-08 19:30:18
re: The continued fraction wayTheKPAXian2009-10-06 19:48:57
answerK Sengupta2007-06-28 23:03:30
SolutionInfinitely manyMichael Cottle2004-12-31 23:13:01
SolutionThe continued fraction wayFederico Kereki2003-12-04 09:49:37
SolutionAnother methodDJ2003-06-25 16:07:43
another methodCharlie2003-06-04 04:01:16
another approachsteve2003-05-22 03:09:30
My AnswerTom2002-05-09 12:15:01
Typo in your solutionFingLao2002-05-09 09:43:32
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