Thread: Double Checking on GPU72 View Single Post
2013-12-25, 05:45   #16
axn

Jun 2003

132·29 Posts

Quote:
 Originally Posted by retina 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)