PRPs not prime

schickel · 2015-08-02, 18:53

OK, now there are two below 3000 digits:

Code:

[PRIMO - Task Report]
Version=3.0.9
WebSite=http://www.ellipsa.eu/
Task=Certification
ID=B3A4402872DA3
Created=08/02/2015 11:46:53 AM

[Common]
Path=C:\aliquot\Primo\work\
Selected=2
Processed=2
Certified=0
Candidate #1=Aborted, 0.00s
Candidate #2=Aborted, 0.00s

[Candidate #1]
Input=primo_1100000000781996714.in
Status=Candidate not strong pseudoprime to the base 2

[Candidate #2]
Input=primo_1100000000797439537.in
Status=Candidate not Lucas strong pseudoprime for (P=1,Q=-1)

It looks like the second one is not a primorial operator being misparsed.....

axn · 2015-08-03, 02:50

Quote:

Originally Posted by schickel

It looks like the second one is not a primorial operator being misparsed.....

That is a genuine base-2 pseudoprime (on account of it being a factor of 2^22834+1). Asking factordb to do a base-3 PRP test changed its status to C.

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