#13516: prime_powers doesn't work with start very well
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Reporter: kcrisman | Owner: was
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.4
Component: number theory | Resolution:
Keywords: beginner | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by kcrisman):
Thanks for your work - hopefully someone will review it soon. You can put
your real name in the author area.
> Also, I have qualms about calling 1 a prime power, but did so because
the old function did. If you think its fine to drop this, let me know.
Well, John Horton Conway does call -1 a prime, in which case every nonzero
integer (not just positive) is a unique product of prime powers - not a
unique product of primes, note, nor of the exponents, but of the prime
powers themselves (I can't find a link for this right now, my apologies)
in which case positives get the power 1 and and negatives -1. I think
that's right... anyway, maybe they were thinking this?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13516#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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