> > How good a match do you need?  If you REALLY need to know exactly
> > what it is, pen and paper might be your best bet.
> >
> > 16^16 = 18446744073709551616
> >
> > Square that, and there's your answer.
> >
> > Mike H.
>
> Is't it 256 ^ 16 ?

Sure, which is (16^16)^2, or 16^32, which is the original way it was written.
Remember, when multiplying two exponentials of the same base, they
exponents add.  (2^2)*(2^3) = (2^5).  Soooo a 32 digit hex number, maxed
out, is 16^32, but Windows calc could only give me precision to 16 digits,
so break it in half and grind through on paper.

Or use a different calculator. ;-)  I'd bet Excel or Google would give me
the right answer.

Mike H.

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