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Old 2018-01-24, 22:26   #7
lukerichards
 
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"Luke Richards"
Jan 2018
Birmingham, UK

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Quote:
Originally Posted by VBCurtis View Post
Eh? Which database are you referring to?

If you find a number is PRP, it is very very very likely prime. Two different PRP tests convince most folks, but since exceptions exist a proof is required to call it prime. Assuming any PRP is not prime isn't a wise plan- you either find documentation it's an exception (PRP but not prime, I mean), or you should assume it's actually a prime.
Thanks.

I was referring to Primes.utm.edu but I've since realised their database only searches for top5000 primes, not all primes.
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