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- Newsgroups: comp.lang.c
- Path: cwi.nl!dik
- From: dik@cwi.nl (Dik T. Winter)
- Subject: Re: Tough FACTORIAL math problem...
- Message-ID: <DMvLz7.I1z@cwi.nl>
- Sender: news@cwi.nl (The Daily Dross)
- Nntp-Posting-Host: chrysant.cwi.nl
- Organization: CWI, Amsterdam
- References: <4fv74c$chq@gatekeeper.alcatel.no> <4fvgbu$kmb@winx03.informatik.uni-wuerzburg.de> <4g250f$3ve@antares.dfma.com>
- Date: Fri, 16 Feb 1996 16:04:19 GMT
-
- In article <4g250f$3ve@antares.dfma.com> johnb@dfma.com (John Breckenridge) writes:
- > schoof@informatik.uni-wuerzburg.de (Jochen Schoof) wrote:
- > > If two numbers of at least
- > >two digits have no zeroes in their rightmost digit, the two rightmost
- > >digits of their product cannot both be zero and are determined from the
- > >two rightmost digits of the two numbers.
- >
- > 16 * 25 = 400
-
- I always sort of like:
- 762939453125 * 137438429184 = 104857200000000000000000
- although
- 3814697265625 * 262144 = 1000000000000000000
- is also spectacular.
- --
- dik t. winter, cwi, kruislaan 413, 1098 sj amsterdam, nederland, +31205924098
- home: bovenover 215, 1025 jn amsterdam, nederland; http://www.cwi.nl/~dik/
-