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Ubasic ECM Factorization Program

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Pavel314

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Nov 20, 2009, 12:42:40 PM11/20/09
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I've seen reference to the ECM Factorization Program, written in
Ubasic. Does anyone know where to download it from? What I need is a
program into which I can input an integer and get back the prime
factors of that integer.

Thanks,

Paul

Mensanator

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Nov 20, 2009, 1:00:05 PM11/20/09
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Have you tried factor.exe from the MIRACL library?
(Although it has some issues.)

Or the sympy module for Python?

>
> Thanks,
>
> Paul

Chip Eastham

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Nov 20, 2009, 2:33:45 PM11/20/09
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The program ecmx.ub is bundled with Ubasic.

You can download Ubasic version 8.74 (circa
1994, it's a DOS program) from UTK's math
archives:

[Ubasic v.8.74 -- Math Archives]
http://archives.math.utk.edu/software/msdos/number.theory/ubasic/.html

as well as other places you'll find via
Google (Simtel). The newest version is:

[Ubasic v.8.8f -- Ubasic Home]
http://www.rkmath.rikkyo.ac.jp/~kida/ubasic.htm

(Japanese site, circa 2000).

regards, chip

Pavel314

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Nov 22, 2009, 4:08:31 PM11/22/09
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Thank you both. I found ecmx.ub in the Ubasic program library.

pli

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