WinPFGW 3.7.10:
2^126537-3721 is 3-PRP! (8.2006s+0.0004s)
2^160387-3721 is 3-PRP! (13.4978s+0.0004s)
2^134525-3793 is 3-PRP! (11.3160s+0.0004s)
2^170737-3823 is 3-PRP! (14.7096s+0.0004s)
2^119506-3851 is 3-PRP! (7.7550s+0.0004s)
2^164061-3889 is 3-PRP! (14.1479s+0.0004s)
2^123391-3891 is 3-PRP! (7.9845s+0.0004s)
2^173314-3941 is 3-PRP! (14.9227s+0.0004s)
2^174170-3941 is 3-PRP! (14.9951s+0.0004s)
2^192214-3941 is 3-PRP! (19.4318s+0.0004s)
2^173424-3959 is 3-PRP! (14.9423s+0.0004s)
2^197932-3959 is 3-PRP! (22.3947s+0.0004s)
2^135402-4001 is 3-PRP! (11.3789s+0.0004s)
2^144114-4001 is 3-PRP! (12.1368s+0.0005s)

To be completed...