lowercase i

Relation ‘lowercase i’ in group 1+(-1+2^t)*(2^(t+1))

−1+2t−1≡(2t−1)∗(1+23∗(t+1))-1+2^{t-1} ≡ (2^{t-1})*(1+2^{3*(t+1)})

For t=11 set N (composite)

 1023

For t=23 group P

 4194303

For t=39 group P

 274877906943
calculation of mod showing numeric output
lowercase ‘i’ – showing identical