[Axiom-developer] [#253 factor returns wrong result]

[kratt6]

Changes http://wiki.axiom-developer.org/253FactorReturnsWrongResult/diff
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--removed:
-t:=6*t

--removed:
-factor t
-factor(6*t)

++added:

There are several things to notice, in fact:

- The factorisation is nonsense

- I think that AlgebraicNumber should be able to simplify 
$\sqrt{2}\sqrt{3}\sqrt{6}$ to $\sqrt{36}$

- shouldn't $sqrt{36}$ be simplified to $6$? Usually, 'sqrt' denotes the 
positive square root.

Martin

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