I usePrimeForm
39971#-55439 is 3-PRP! (32.5030s+0.0207s)
39971#-55439 is 5-PRP! (32.4654s+0.0205s)
39971#-55439 is 7-PRP! (32.5852s+0.0203s)
39971#-55439 is 11-PRP! (32.6108s+0.0201s)
39971#-55439 is 13-PRP! (32.5108s+0.0204s)
39971#-55439 is 17-PRP! (33.5392s+0.0205s)
To be completed...