Generalized repunit (base -172)

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

(172^4483+1)/173 is 3-PRP! (8.3895s+0.2802s) (2008-11-15, 20h51m UTC)

Additional results:
(172^4483+1)/173 is 2-PRP! (11.5520s+0.0003s)
(172^4483+1)/173 is 5-PRP! (14.0319s+0.0002s)
(172^4483+1)/173 is 7-PRP! (11.5287s+0.0002s)
(172^4483+1)/173 is 11-PRP! (13.6109s+0.0002s)

To be completed...