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Guest Message by DevFuse
 

Morningstar

Member Since --
Offline Last Active Nov 13 2013 08:36 PM
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Topics I've Started

Chess problems

14 March 2013 - 02:02 PM

I was thinking that it might be interesting if there was a section in the forum for chess problems, maybe with support for chessboard pics. Not sure how difficult it would be but it might be cool.


How Many Primes?

14 February 2013 - 04:02 PM

Just a quick math problem that shouldn't take too long.

 

The digits 0-9 can be arranged into 3,628,800 distinct 10-digit numbers (including a leading 0). Of these, how many are prime?