On Tue, 27 Jul 1999, Lucas Wiman wrote:
> ><<1) What is the approximate P-90 computing time to test for primality
> >for a 1, 10, 100 million (& 1 trillion!) digit Mersenne Primes?>>
> 
> >Generally, a billion comes after 100 million, but I can't remember how the
> >British and other countries work with billions. And I don't think that many
> >people run P90s now for GIMPS.... I hope.
US: million 10^6, billion 10^9, trillion 10^12 ...

Non-US: million 10^6, milliard 10^9, billion 10^12,
 billiard 10^15, trillion 10^18 ...


In general,
US     <num>llion 10^(num*3+3)
non-US <num>llion 10^(6*num), <num>lliard 10^(6*num+3)


-- 
Henrik Olsen,  Dawn Solutions I/S       URL=http://www.iaeste.dk/~henrik/
  Animal behaviour is best described by the four F's
  Feed, Fight, Flee and Reproduce


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