Generalized repunit (base -189)

Open WinPFGW Version 1.30 - PFGW Version 1.2.0 for Windows [FFT v23.8]

(189^8123+1)/190 is 3-PRP! (29.0215s+0.6752s) (2008-11-24, 21h58m UTC)

Additional results:
(189^8123+1)/190 is 2-PRP! (38.5840s+0.0007s)
(189^8123+1)/190 is 5-PRP! (39.4538s+0.0006s)
(189^8123+1)/190 is 7-PRP! (42.8742s+0.0007s)
(189^8123+1)/190 is 11-PRP! (38.2661s+0.0006s)

To be completed...