PRP Records

221^9810-9810^221



Found with PFGW Version 3.7.5

221^9810-9810^221 is 2-PRP! (9.6707s+0.0017s)
221^9810-9810^221 is 3-PRP! (9.5817s+0.0011s)
221^9810-9810^221 is 5-PRP! (9.5219s+0.0011s)
221^9810-9810^221 is 7-PRP! (9.5490s+0.0011s)
221^9810-9810^221 is 11-PRP! (9.5152s+0.0011s)

Primality testing 221^9810-9810^221 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
Running N-1 test using base 13
Running N+1 test using discriminant 19, base 9+sqrt(19)
Calling N+1 BLS with factored part 0.05% and helper 0.04% (0.18% proof)
221^9810-9810^221 is Fermat and Lucas PRP! (57.4067s+0.0019s)

To be completed...




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