View Single Post
Old 2013-12-25, 05:45   #16
axn
 
axn's Avatar
 
Jun 2003

132·29 Posts
Default

Quote:
Originally Posted by retina View Post
Isn't there a factor missing: Namely the probability of a number being prime.

Probability per day = (tests per day)*(probability of error)/250,000 * probability of being prime
What is the role of the magic number "1/250000"?

Also, it is not "Probability per day", it is "Expected primes per day" (as in, with really large values, the result can easily be > 1)
axn is online now   Reply With Quote