Show that
(p-1)(p-2)...(p-r)==(-1)^r*r!(mod p)
for r=1, 2, ..., p-1.
I am totally lost on this one... Can you help me get started? Thanks.
Oops, this should have said Wilson's theorem in the title.
Show that
(p-1)(p-2)...(p-r)==(-1)^r*r!(mod p)
for r=1, 2, ..., p-1.
I am totally lost on this one... Can you help me get started? Thanks.
Oops, this should have said Wilson's theorem in the title.