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factor.exe and factoring

  • To: mathgroup at
  • Subject: [mg30356] factor.exe and factoring
  • From: "Greg Keogh" <greg at>
  • Date: Sun, 12 Aug 2001 02:29:47 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Hello from Melbourne Australia,

A few years ago I stumbled across a Win32 command prompt program named
factor.exe by Shamus Software in Ireland. The program uses the C MIRACL
library to work with large integers (up to about 10^90 I think).

Factor.exe seems to have staggering speed and power in finding factors. I
was wondering if there is a similarly powerful factoring program available
in Mathematica. I'd be keen to hear from anyone with news of a high-power
factoring program in Mathematica. I imagine the equivalent code in
Mathematica could be much more elegant and educational.

Greg Keogh

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