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MathGroup Archive 2006

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Re: Writing prime factor decomposision in conventional form

  • To: mathgroup at smc.vnet.net
  • Subject: [mg65340] Re: Writing prime factor decomposision in conventional form
  • From: dh <dh at metrohm.ch>
  • Date: Mon, 27 Mar 2006 06:56:10 -0500 (EST)
  • References: <e05ri1$3ru$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Wolfgang,

use a String and OutputForm. E.g.:

(If[#[[2]] == 1, #[[1]], StringForm["``^``", #[[1]], #[[2]]]]) & /@ {{2, 
3}, {5, 1}}

this yields:

{2^3, 5}

Daniel

Dr. Wolfgang Hintze wrote:
> How can I get a conventional form output for the prime number 
> decomposition, e.g. {{2,3},{5,1}} as 2^3 5 ?
> 
> I have found some (rather cumbersome) method but it leaves the final 
> expression in "" when I put it into input format in order to transfer it 
> in simple text form to another application.
> 
> I'm sure that there is a simple way to achieve the goal.
> 
> Any idea is greatly appreciated.
> 
> Regards,
> Wolfgang
> 


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