Primality testing (1852^13477-1)/1851 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 2 Calling Brillhart-Lehmer-Selfridge with factored part 33.33% (1852^13477-1)/1851 is prime! (146.3170s+0.0073s)
Phi(13476,1852)/(40429*951672852913520268457) 951672852913520268457 1370257308578838049
Phi(13476,1852)/(40429*951672852913520268457)
(14640 digits): ecpp14640.zip