Primality testing (4867^3187-1)/4866 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 34.30% (4867^3187-1)/4866 is prime! helper: << 691363 1439803 5179021 26100421 88700923 120239641 565470397 722526391 3119477737 4094373559 72353549179 487648536841 23837419001139313 10161750584137855664233850077 160484327657285366705374560772873 782677731639556711953326238604885379573410635665731357893668763919 385253059567783926928131920767719257308796321311549331198959502519152425917233674284589344212070055978242037841273024354423840392270214696385802164377270519942800355730982529098957910038854055787727 Phi(1593,4867)/(6373*691363*120239641) >> Titanix batch file for small primes: == BPI:B2888003A6DF8 ============================================ TITANIX 1.0 - Batch Processing Report Number(s) to process: 17 #1 ..... Certified (20 bits, 67ms) #2 ..... Certified (21 bits, 28ms) #3 ..... Certified (23 bits, 27ms) #4 ..... Certified (25 bits, 55ms) #5 ..... Certified (27 bits, 28ms) #6 ..... Certified (27 bits, 27ms) #7 ..... Certified (30 bits, 14ms) #8 ..... Certified (30 bits, 28ms) #9 ..... Certified (32 bits, 54ms) #10 .... Certified (32 bits, 28ms) #11 .... Certified (37 bits, 27ms) #12 .... Certified (39 bits, 55ms) #13 .... Certified (55 bits, 123ms) #14 .... Certified (94 bits, 124ms) #15 .... Certified (107 bits, 261ms) #16 .... Certified (219 bits, 1s) #17 .... Certified (657 bits, 1mn 5s) Processed: 17 / 17 Certified: 17 / 17 Running time 1mn 6s ================================================================= Signed Primo certificate for p3832=Phi(1593,4867)/(6373*691363*120239641) in http://physics.open.ac.uk/~dbroadhu/cert/p3832.zip