I don' know how to solve problem.
CUPAA (guest) 16 Dec 2014 17:54
1. p is not 11, p is an odd prime
Legendre symbol (-11/p)
2. p=4a+1(a>=1), prove (a/p)=1
when a=5, I can compute legendre symbol value. but this case is very difficult to me..
I need help, please help me