PRP established using PFGW:
2^234133-3163 is 3-PRP! (185.9151s+0.0023s)
2^173477-3433 is 3-PRP! (115.2740s+0.0022s)
2^171287-3187 is 3-PRP! (113.0333s+0.0022s)
2^157753-3823 is 3-PRP! (81.3588s+0.0022s)
2^148705-3823 is 3-PRP! (76.4693s+0.0012s)

To be completed...