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How Many Primes?
Posted 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?
Posted 14 February 2013 - 04:30 PM
Wow. That was fast. Good job!
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