parisize = 8000000, primelimit = 500000

� � � � � GP/PARI CALCULATOR Version 2.6.2 (development 15279-67efe9f)

� � � � � amd64 running linux (x86-64/GMP-5.1.2 kernel) 64-bit version

� �compiled: Oct 17 2013, gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu1)

� � � � � � � � (readline v6.2 disabled, extended help enabled)

� �echo = 1 (on)

? elltors(ellinit([0,706607569223786457,0,-1866575649655837263252847197205171425,-1298198297451307472292414787720779720378300792679274425]));

� *** � at top-level: elltors(ellinit([0,7

� *** � � � � � � � � ^--------------------

� *** elltors: impossible inverse in Fl_inv: Mod(0, 191).