N=115792089237316195423570985008687907852837564279074904382605163141518161494337
p=115792089237316195423570985008687907853269984665640564039457584007908834671663
Gx = 18330083172231516910921476241581278950469869051063175177377276968000913867056
((N-1)* multiplier)%((N+P)/2)=Gx
how to invers mod NP' to find the multiplier?