Tested with the latest PFGW, built against latest gwnum library.

$ ./pfgw64 -N -T8 ./input.txt
PFGW Version 4.1.3.64BIT.20240114.x86_Dev [GWNUM 30.19]


F(7789819) is 3-PRP! (12806.0371s+0.1340s)

To be completed...